1 /* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.widget; 18 19 import static android.view.accessibility.AccessibilityNodeInfo.EXTRA_DATA_TEXT_CHARACTER_LOCATION_ARG_LENGTH; 20 import static android.view.accessibility.AccessibilityNodeInfo.EXTRA_DATA_TEXT_CHARACTER_LOCATION_ARG_START_INDEX; 21 import static android.view.accessibility.AccessibilityNodeInfo.EXTRA_DATA_TEXT_CHARACTER_LOCATION_KEY; 22 import static android.view.inputmethod.CursorAnchorInfo.FLAG_HAS_VISIBLE_REGION; 23 24 import android.R; 25 import android.annotation.CheckResult; 26 import android.annotation.ColorInt; 27 import android.annotation.DrawableRes; 28 import android.annotation.FloatRange; 29 import android.annotation.IntDef; 30 import android.annotation.IntRange; 31 import android.annotation.NonNull; 32 import android.annotation.Nullable; 33 import android.annotation.Px; 34 import android.annotation.Size; 35 import android.annotation.StringRes; 36 import android.annotation.StyleRes; 37 import android.annotation.XmlRes; 38 import android.app.Activity; 39 import android.app.PendingIntent; 40 import android.app.assist.AssistStructure; 41 import android.content.ClipData; 42 import android.content.ClipDescription; 43 import android.content.ClipboardManager; 44 import android.content.Context; 45 import android.content.Intent; 46 import android.content.UndoManager; 47 import android.content.res.ColorStateList; 48 import android.content.res.CompatibilityInfo; 49 import android.content.res.Configuration; 50 import android.content.res.ResourceId; 51 import android.content.res.Resources; 52 import android.content.res.TypedArray; 53 import android.content.res.XmlResourceParser; 54 import android.graphics.BaseCanvas; 55 import android.graphics.Canvas; 56 import android.graphics.Insets; 57 import android.graphics.Paint; 58 import android.graphics.Paint.FontMetricsInt; 59 import android.graphics.Path; 60 import android.graphics.PorterDuff; 61 import android.graphics.Rect; 62 import android.graphics.RectF; 63 import android.graphics.Typeface; 64 import android.graphics.drawable.Drawable; 65 import android.graphics.fonts.FontVariationAxis; 66 import android.icu.text.DecimalFormatSymbols; 67 import android.os.AsyncTask; 68 import android.os.Build.VERSION_CODES; 69 import android.os.Bundle; 70 import android.os.LocaleList; 71 import android.os.Parcel; 72 import android.os.Parcelable; 73 import android.os.ParcelableParcel; 74 import android.os.SystemClock; 75 import android.provider.Settings; 76 import android.text.BoringLayout; 77 import android.text.DynamicLayout; 78 import android.text.Editable; 79 import android.text.GetChars; 80 import android.text.GraphicsOperations; 81 import android.text.InputFilter; 82 import android.text.InputType; 83 import android.text.Layout; 84 import android.text.ParcelableSpan; 85 import android.text.PrecomputedText; 86 import android.text.Selection; 87 import android.text.SpanWatcher; 88 import android.text.Spannable; 89 import android.text.SpannableStringBuilder; 90 import android.text.Spanned; 91 import android.text.SpannedString; 92 import android.text.StaticLayout; 93 import android.text.TextDirectionHeuristic; 94 import android.text.TextDirectionHeuristics; 95 import android.text.TextPaint; 96 import android.text.TextUtils; 97 import android.text.TextUtils.TruncateAt; 98 import android.text.TextWatcher; 99 import android.text.method.AllCapsTransformationMethod; 100 import android.text.method.ArrowKeyMovementMethod; 101 import android.text.method.DateKeyListener; 102 import android.text.method.DateTimeKeyListener; 103 import android.text.method.DialerKeyListener; 104 import android.text.method.DigitsKeyListener; 105 import android.text.method.KeyListener; 106 import android.text.method.LinkMovementMethod; 107 import android.text.method.MetaKeyKeyListener; 108 import android.text.method.MovementMethod; 109 import android.text.method.PasswordTransformationMethod; 110 import android.text.method.SingleLineTransformationMethod; 111 import android.text.method.TextKeyListener; 112 import android.text.method.TimeKeyListener; 113 import android.text.method.TransformationMethod; 114 import android.text.method.TransformationMethod2; 115 import android.text.method.WordIterator; 116 import android.text.style.CharacterStyle; 117 import android.text.style.ClickableSpan; 118 import android.text.style.ParagraphStyle; 119 import android.text.style.SpellCheckSpan; 120 import android.text.style.SuggestionSpan; 121 import android.text.style.URLSpan; 122 import android.text.style.UpdateAppearance; 123 import android.text.util.Linkify; 124 import android.util.AttributeSet; 125 import android.util.DisplayMetrics; 126 import android.util.IntArray; 127 import android.util.Log; 128 import android.util.SparseIntArray; 129 import android.util.TypedValue; 130 import android.view.AccessibilityIterators.TextSegmentIterator; 131 import android.view.ActionMode; 132 import android.view.Choreographer; 133 import android.view.ContextMenu; 134 import android.view.DragEvent; 135 import android.view.Gravity; 136 import android.view.HapticFeedbackConstants; 137 import android.view.InputDevice; 138 import android.view.KeyCharacterMap; 139 import android.view.KeyEvent; 140 import android.view.MotionEvent; 141 import android.view.PointerIcon; 142 import android.view.View; 143 import android.view.ViewConfiguration; 144 import android.view.ViewDebug; 145 import android.view.ViewGroup.LayoutParams; 146 import android.view.ViewHierarchyEncoder; 147 import android.view.ViewParent; 148 import android.view.ViewRootImpl; 149 import android.view.ViewStructure; 150 import android.view.ViewTreeObserver; 151 import android.view.accessibility.AccessibilityEvent; 152 import android.view.accessibility.AccessibilityManager; 153 import android.view.accessibility.AccessibilityNodeInfo; 154 import android.view.animation.AnimationUtils; 155 import android.view.autofill.AutofillManager; 156 import android.view.autofill.AutofillValue; 157 import android.view.inputmethod.BaseInputConnection; 158 import android.view.inputmethod.CompletionInfo; 159 import android.view.inputmethod.CorrectionInfo; 160 import android.view.inputmethod.CursorAnchorInfo; 161 import android.view.inputmethod.EditorInfo; 162 import android.view.inputmethod.ExtractedText; 163 import android.view.inputmethod.ExtractedTextRequest; 164 import android.view.inputmethod.InputConnection; 165 import android.view.inputmethod.InputMethodManager; 166 import android.view.textclassifier.TextClassification; 167 import android.view.textclassifier.TextClassificationContext; 168 import android.view.textclassifier.TextClassificationManager; 169 import android.view.textclassifier.TextClassifier; 170 import android.view.textclassifier.TextLinks; 171 import android.view.textservice.SpellCheckerSubtype; 172 import android.view.textservice.TextServicesManager; 173 import android.widget.RemoteViews.RemoteView; 174 175 import com.android.internal.annotations.VisibleForTesting; 176 import com.android.internal.logging.MetricsLogger; 177 import com.android.internal.logging.nano.MetricsProto.MetricsEvent; 178 import com.android.internal.util.FastMath; 179 import com.android.internal.util.Preconditions; 180 import com.android.internal.widget.EditableInputConnection; 181 182 import libcore.util.EmptyArray; 183 184 import org.xmlpull.v1.XmlPullParserException; 185 186 import java.io.IOException; 187 import java.lang.annotation.Retention; 188 import java.lang.annotation.RetentionPolicy; 189 import java.lang.ref.WeakReference; 190 import java.util.ArrayList; 191 import java.util.Arrays; 192 import java.util.Locale; 193 import java.util.concurrent.CompletableFuture; 194 import java.util.concurrent.TimeUnit; 195 import java.util.function.Consumer; 196 import java.util.function.Supplier; 197 198 /** 199 * A user interface element that displays text to the user. 200 * To provide user-editable text, see {@link EditText}. 201 * <p> 202 * The following code sample shows a typical use, with an XML layout 203 * and code to modify the contents of the text view: 204 * </p> 205 206 * <pre> 207 * <LinearLayout 208 xmlns:android="http://schemas.android.com/apk/res/android" 209 android:layout_width="match_parent" 210 android:layout_height="match_parent"> 211 * <TextView 212 * android:id="@+id/text_view_id" 213 * android:layout_height="wrap_content" 214 * android:layout_width="wrap_content" 215 * android:text="@string/hello" /> 216 * </LinearLayout> 217 * </pre> 218 * <p> 219 * This code sample demonstrates how to modify the contents of the text view 220 * defined in the previous XML layout: 221 * </p> 222 * <pre> 223 * public class MainActivity extends Activity { 224 * 225 * protected void onCreate(Bundle savedInstanceState) { 226 * super.onCreate(savedInstanceState); 227 * setContentView(R.layout.activity_main); 228 * final TextView helloTextView = (TextView) findViewById(R.id.text_view_id); 229 * helloTextView.setText(R.string.user_greeting); 230 * } 231 * } 232 * </pre> 233 * <p> 234 * To customize the appearance of TextView, see <a href="https://developer.android.com/guide/topics/ui/themes.html">Styles and Themes</a>. 235 * </p> 236 * <p> 237 * <b>XML attributes</b> 238 * <p> 239 * See {@link android.R.styleable#TextView TextView Attributes}, 240 * {@link android.R.styleable#View View Attributes} 241 * 242 * @attr ref android.R.styleable#TextView_text 243 * @attr ref android.R.styleable#TextView_bufferType 244 * @attr ref android.R.styleable#TextView_hint 245 * @attr ref android.R.styleable#TextView_textColor 246 * @attr ref android.R.styleable#TextView_textColorHighlight 247 * @attr ref android.R.styleable#TextView_textColorHint 248 * @attr ref android.R.styleable#TextView_textAppearance 249 * @attr ref android.R.styleable#TextView_textColorLink 250 * @attr ref android.R.styleable#TextView_textSize 251 * @attr ref android.R.styleable#TextView_textScaleX 252 * @attr ref android.R.styleable#TextView_fontFamily 253 * @attr ref android.R.styleable#TextView_typeface 254 * @attr ref android.R.styleable#TextView_textStyle 255 * @attr ref android.R.styleable#TextView_cursorVisible 256 * @attr ref android.R.styleable#TextView_maxLines 257 * @attr ref android.R.styleable#TextView_maxHeight 258 * @attr ref android.R.styleable#TextView_lines 259 * @attr ref android.R.styleable#TextView_height 260 * @attr ref android.R.styleable#TextView_minLines 261 * @attr ref android.R.styleable#TextView_minHeight 262 * @attr ref android.R.styleable#TextView_maxEms 263 * @attr ref android.R.styleable#TextView_maxWidth 264 * @attr ref android.R.styleable#TextView_ems 265 * @attr ref android.R.styleable#TextView_width 266 * @attr ref android.R.styleable#TextView_minEms 267 * @attr ref android.R.styleable#TextView_minWidth 268 * @attr ref android.R.styleable#TextView_gravity 269 * @attr ref android.R.styleable#TextView_scrollHorizontally 270 * @attr ref android.R.styleable#TextView_password 271 * @attr ref android.R.styleable#TextView_singleLine 272 * @attr ref android.R.styleable#TextView_selectAllOnFocus 273 * @attr ref android.R.styleable#TextView_includeFontPadding 274 * @attr ref android.R.styleable#TextView_maxLength 275 * @attr ref android.R.styleable#TextView_shadowColor 276 * @attr ref android.R.styleable#TextView_shadowDx 277 * @attr ref android.R.styleable#TextView_shadowDy 278 * @attr ref android.R.styleable#TextView_shadowRadius 279 * @attr ref android.R.styleable#TextView_autoLink 280 * @attr ref android.R.styleable#TextView_linksClickable 281 * @attr ref android.R.styleable#TextView_numeric 282 * @attr ref android.R.styleable#TextView_digits 283 * @attr ref android.R.styleable#TextView_phoneNumber 284 * @attr ref android.R.styleable#TextView_inputMethod 285 * @attr ref android.R.styleable#TextView_capitalize 286 * @attr ref android.R.styleable#TextView_autoText 287 * @attr ref android.R.styleable#TextView_editable 288 * @attr ref android.R.styleable#TextView_freezesText 289 * @attr ref android.R.styleable#TextView_ellipsize 290 * @attr ref android.R.styleable#TextView_drawableTop 291 * @attr ref android.R.styleable#TextView_drawableBottom 292 * @attr ref android.R.styleable#TextView_drawableRight 293 * @attr ref android.R.styleable#TextView_drawableLeft 294 * @attr ref android.R.styleable#TextView_drawableStart 295 * @attr ref android.R.styleable#TextView_drawableEnd 296 * @attr ref android.R.styleable#TextView_drawablePadding 297 * @attr ref android.R.styleable#TextView_drawableTint 298 * @attr ref android.R.styleable#TextView_drawableTintMode 299 * @attr ref android.R.styleable#TextView_lineSpacingExtra 300 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 301 * @attr ref android.R.styleable#TextView_justificationMode 302 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 303 * @attr ref android.R.styleable#TextView_inputType 304 * @attr ref android.R.styleable#TextView_imeOptions 305 * @attr ref android.R.styleable#TextView_privateImeOptions 306 * @attr ref android.R.styleable#TextView_imeActionLabel 307 * @attr ref android.R.styleable#TextView_imeActionId 308 * @attr ref android.R.styleable#TextView_editorExtras 309 * @attr ref android.R.styleable#TextView_elegantTextHeight 310 * @attr ref android.R.styleable#TextView_fallbackLineSpacing 311 * @attr ref android.R.styleable#TextView_letterSpacing 312 * @attr ref android.R.styleable#TextView_fontFeatureSettings 313 * @attr ref android.R.styleable#TextView_breakStrategy 314 * @attr ref android.R.styleable#TextView_hyphenationFrequency 315 * @attr ref android.R.styleable#TextView_autoSizeTextType 316 * @attr ref android.R.styleable#TextView_autoSizeMinTextSize 317 * @attr ref android.R.styleable#TextView_autoSizeMaxTextSize 318 * @attr ref android.R.styleable#TextView_autoSizeStepGranularity 319 * @attr ref android.R.styleable#TextView_autoSizePresetSizes 320 */ 321 @RemoteView 322 public class TextView extends View implements ViewTreeObserver.OnPreDrawListener { 323 static final String LOG_TAG = "TextView"; 324 static final boolean DEBUG_EXTRACT = false; 325 private static final float[] TEMP_POSITION = new float[2]; 326 327 // Enum for the "typeface" XML parameter. 328 // TODO: How can we get this from the XML instead of hardcoding it here? 329 /** @hide */ 330 @IntDef(value = {DEFAULT_TYPEFACE, SANS, SERIF, MONOSPACE}) 331 @Retention(RetentionPolicy.SOURCE) 332 public @interface XMLTypefaceAttr{} 333 private static final int DEFAULT_TYPEFACE = -1; 334 private static final int SANS = 1; 335 private static final int SERIF = 2; 336 private static final int MONOSPACE = 3; 337 338 // Enum for the "ellipsize" XML parameter. 339 private static final int ELLIPSIZE_NOT_SET = -1; 340 private static final int ELLIPSIZE_NONE = 0; 341 private static final int ELLIPSIZE_START = 1; 342 private static final int ELLIPSIZE_MIDDLE = 2; 343 private static final int ELLIPSIZE_END = 3; 344 private static final int ELLIPSIZE_MARQUEE = 4; 345 346 // Bitfield for the "numeric" XML parameter. 347 // TODO: How can we get this from the XML instead of hardcoding it here? 348 private static final int SIGNED = 2; 349 private static final int DECIMAL = 4; 350 351 /** 352 * Draw marquee text with fading edges as usual 353 */ 354 private static final int MARQUEE_FADE_NORMAL = 0; 355 356 /** 357 * Draw marquee text as ellipsize end while inactive instead of with the fade. 358 * (Useful for devices where the fade can be expensive if overdone) 359 */ 360 private static final int MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS = 1; 361 362 /** 363 * Draw marquee text with fading edges because it is currently active/animating. 364 */ 365 private static final int MARQUEE_FADE_SWITCH_SHOW_FADE = 2; 366 367 private static final int LINES = 1; 368 private static final int EMS = LINES; 369 private static final int PIXELS = 2; 370 371 private static final RectF TEMP_RECTF = new RectF(); 372 373 /** @hide */ 374 static final int VERY_WIDE = 1024 * 1024; // XXX should be much larger 375 private static final int ANIMATED_SCROLL_GAP = 250; 376 377 private static final InputFilter[] NO_FILTERS = new InputFilter[0]; 378 private static final Spanned EMPTY_SPANNED = new SpannedString(""); 379 380 private static final int CHANGE_WATCHER_PRIORITY = 100; 381 382 // New state used to change background based on whether this TextView is multiline. 383 private static final int[] MULTILINE_STATE_SET = { R.attr.state_multiline }; 384 385 // Accessibility action to share selected text. 386 private static final int ACCESSIBILITY_ACTION_SHARE = 0x10000000; 387 388 /** 389 * @hide 390 */ 391 // Accessibility action start id for "process text" actions. 392 static final int ACCESSIBILITY_ACTION_PROCESS_TEXT_START_ID = 0x10000100; 393 394 /** 395 * @hide 396 */ 397 static final int PROCESS_TEXT_REQUEST_CODE = 100; 398 399 /** 400 * Return code of {@link #doKeyDown}. 401 */ 402 private static final int KEY_EVENT_NOT_HANDLED = 0; 403 private static final int KEY_EVENT_HANDLED = -1; 404 private static final int KEY_DOWN_HANDLED_BY_KEY_LISTENER = 1; 405 private static final int KEY_DOWN_HANDLED_BY_MOVEMENT_METHOD = 2; 406 407 private static final int FLOATING_TOOLBAR_SELECT_ALL_REFRESH_DELAY = 500; 408 409 // System wide time for last cut, copy or text changed action. 410 static long sLastCutCopyOrTextChangedTime; 411 412 private ColorStateList mTextColor; 413 private ColorStateList mHintTextColor; 414 private ColorStateList mLinkTextColor; 415 @ViewDebug.ExportedProperty(category = "text") 416 private int mCurTextColor; 417 private int mCurHintTextColor; 418 private boolean mFreezesText; 419 420 private Editable.Factory mEditableFactory = Editable.Factory.getInstance(); 421 private Spannable.Factory mSpannableFactory = Spannable.Factory.getInstance(); 422 423 private float mShadowRadius, mShadowDx, mShadowDy; 424 private int mShadowColor; 425 426 private boolean mPreDrawRegistered; 427 private boolean mPreDrawListenerDetached; 428 429 private TextClassifier mTextClassifier; 430 private TextClassifier mTextClassificationSession; 431 432 // A flag to prevent repeated movements from escaping the enclosing text view. The idea here is 433 // that if a user is holding down a movement key to traverse text, we shouldn't also traverse 434 // the view hierarchy. On the other hand, if the user is using the movement key to traverse 435 // views (i.e. the first movement was to traverse out of this view, or this view was traversed 436 // into by the user holding the movement key down) then we shouldn't prevent the focus from 437 // changing. 438 private boolean mPreventDefaultMovement; 439 440 private TextUtils.TruncateAt mEllipsize; 441 442 static class Drawables { 443 static final int LEFT = 0; 444 static final int TOP = 1; 445 static final int RIGHT = 2; 446 static final int BOTTOM = 3; 447 448 static final int DRAWABLE_NONE = -1; 449 static final int DRAWABLE_RIGHT = 0; 450 static final int DRAWABLE_LEFT = 1; 451 452 final Rect mCompoundRect = new Rect(); 453 454 final Drawable[] mShowing = new Drawable[4]; 455 456 ColorStateList mTintList; 457 PorterDuff.Mode mTintMode; 458 boolean mHasTint; 459 boolean mHasTintMode; 460 461 Drawable mDrawableStart, mDrawableEnd, mDrawableError, mDrawableTemp; 462 Drawable mDrawableLeftInitial, mDrawableRightInitial; 463 464 boolean mIsRtlCompatibilityMode; 465 boolean mOverride; 466 467 int mDrawableSizeTop, mDrawableSizeBottom, mDrawableSizeLeft, mDrawableSizeRight, 468 mDrawableSizeStart, mDrawableSizeEnd, mDrawableSizeError, mDrawableSizeTemp; 469 470 int mDrawableWidthTop, mDrawableWidthBottom, mDrawableHeightLeft, mDrawableHeightRight, 471 mDrawableHeightStart, mDrawableHeightEnd, mDrawableHeightError, mDrawableHeightTemp; 472 473 int mDrawablePadding; 474 475 int mDrawableSaved = DRAWABLE_NONE; 476 477 public Drawables(Context context) { 478 final int targetSdkVersion = context.getApplicationInfo().targetSdkVersion; 479 mIsRtlCompatibilityMode = targetSdkVersion < VERSION_CODES.JELLY_BEAN_MR1 480 || !context.getApplicationInfo().hasRtlSupport(); 481 mOverride = false; 482 } 483 484 /** 485 * @return {@code true} if this object contains metadata that needs to 486 * be retained, {@code false} otherwise 487 */ 488 public boolean hasMetadata() { 489 return mDrawablePadding != 0 || mHasTintMode || mHasTint; 490 } 491 492 /** 493 * Updates the list of displayed drawables to account for the current 494 * layout direction. 495 * 496 * @param layoutDirection the current layout direction 497 * @return {@code true} if the displayed drawables changed 498 */ 499 public boolean resolveWithLayoutDirection(int layoutDirection) { 500 final Drawable previousLeft = mShowing[Drawables.LEFT]; 501 final Drawable previousRight = mShowing[Drawables.RIGHT]; 502 503 // First reset "left" and "right" drawables to their initial values 504 mShowing[Drawables.LEFT] = mDrawableLeftInitial; 505 mShowing[Drawables.RIGHT] = mDrawableRightInitial; 506 507 if (mIsRtlCompatibilityMode) { 508 // Use "start" drawable as "left" drawable if the "left" drawable was not defined 509 if (mDrawableStart != null && mShowing[Drawables.LEFT] == null) { 510 mShowing[Drawables.LEFT] = mDrawableStart; 511 mDrawableSizeLeft = mDrawableSizeStart; 512 mDrawableHeightLeft = mDrawableHeightStart; 513 } 514 // Use "end" drawable as "right" drawable if the "right" drawable was not defined 515 if (mDrawableEnd != null && mShowing[Drawables.RIGHT] == null) { 516 mShowing[Drawables.RIGHT] = mDrawableEnd; 517 mDrawableSizeRight = mDrawableSizeEnd; 518 mDrawableHeightRight = mDrawableHeightEnd; 519 } 520 } else { 521 // JB-MR1+ normal case: "start" / "end" drawables are overriding "left" / "right" 522 // drawable if and only if they have been defined 523 switch(layoutDirection) { 524 case LAYOUT_DIRECTION_RTL: 525 if (mOverride) { 526 mShowing[Drawables.RIGHT] = mDrawableStart; 527 mDrawableSizeRight = mDrawableSizeStart; 528 mDrawableHeightRight = mDrawableHeightStart; 529 530 mShowing[Drawables.LEFT] = mDrawableEnd; 531 mDrawableSizeLeft = mDrawableSizeEnd; 532 mDrawableHeightLeft = mDrawableHeightEnd; 533 } 534 break; 535 536 case LAYOUT_DIRECTION_LTR: 537 default: 538 if (mOverride) { 539 mShowing[Drawables.LEFT] = mDrawableStart; 540 mDrawableSizeLeft = mDrawableSizeStart; 541 mDrawableHeightLeft = mDrawableHeightStart; 542 543 mShowing[Drawables.RIGHT] = mDrawableEnd; 544 mDrawableSizeRight = mDrawableSizeEnd; 545 mDrawableHeightRight = mDrawableHeightEnd; 546 } 547 break; 548 } 549 } 550 551 applyErrorDrawableIfNeeded(layoutDirection); 552 553 return mShowing[Drawables.LEFT] != previousLeft 554 || mShowing[Drawables.RIGHT] != previousRight; 555 } 556 557 public void setErrorDrawable(Drawable dr, TextView tv) { 558 if (mDrawableError != dr && mDrawableError != null) { 559 mDrawableError.setCallback(null); 560 } 561 mDrawableError = dr; 562 563 if (mDrawableError != null) { 564 final Rect compoundRect = mCompoundRect; 565 final int[] state = tv.getDrawableState(); 566 567 mDrawableError.setState(state); 568 mDrawableError.copyBounds(compoundRect); 569 mDrawableError.setCallback(tv); 570 mDrawableSizeError = compoundRect.width(); 571 mDrawableHeightError = compoundRect.height(); 572 } else { 573 mDrawableSizeError = mDrawableHeightError = 0; 574 } 575 } 576 577 private void applyErrorDrawableIfNeeded(int layoutDirection) { 578 // first restore the initial state if needed 579 switch (mDrawableSaved) { 580 case DRAWABLE_LEFT: 581 mShowing[Drawables.LEFT] = mDrawableTemp; 582 mDrawableSizeLeft = mDrawableSizeTemp; 583 mDrawableHeightLeft = mDrawableHeightTemp; 584 break; 585 case DRAWABLE_RIGHT: 586 mShowing[Drawables.RIGHT] = mDrawableTemp; 587 mDrawableSizeRight = mDrawableSizeTemp; 588 mDrawableHeightRight = mDrawableHeightTemp; 589 break; 590 case DRAWABLE_NONE: 591 default: 592 } 593 // then, if needed, assign the Error drawable to the correct location 594 if (mDrawableError != null) { 595 switch(layoutDirection) { 596 case LAYOUT_DIRECTION_RTL: 597 mDrawableSaved = DRAWABLE_LEFT; 598 599 mDrawableTemp = mShowing[Drawables.LEFT]; 600 mDrawableSizeTemp = mDrawableSizeLeft; 601 mDrawableHeightTemp = mDrawableHeightLeft; 602 603 mShowing[Drawables.LEFT] = mDrawableError; 604 mDrawableSizeLeft = mDrawableSizeError; 605 mDrawableHeightLeft = mDrawableHeightError; 606 break; 607 case LAYOUT_DIRECTION_LTR: 608 default: 609 mDrawableSaved = DRAWABLE_RIGHT; 610 611 mDrawableTemp = mShowing[Drawables.RIGHT]; 612 mDrawableSizeTemp = mDrawableSizeRight; 613 mDrawableHeightTemp = mDrawableHeightRight; 614 615 mShowing[Drawables.RIGHT] = mDrawableError; 616 mDrawableSizeRight = mDrawableSizeError; 617 mDrawableHeightRight = mDrawableHeightError; 618 break; 619 } 620 } 621 } 622 } 623 624 Drawables mDrawables; 625 626 private CharWrapper mCharWrapper; 627 628 private Marquee mMarquee; 629 private boolean mRestartMarquee; 630 631 private int mMarqueeRepeatLimit = 3; 632 633 private int mLastLayoutDirection = -1; 634 635 /** 636 * On some devices the fading edges add a performance penalty if used 637 * extensively in the same layout. This mode indicates how the marquee 638 * is currently being shown, if applicable. (mEllipsize will == MARQUEE) 639 */ 640 private int mMarqueeFadeMode = MARQUEE_FADE_NORMAL; 641 642 /** 643 * When mMarqueeFadeMode is not MARQUEE_FADE_NORMAL, this stores 644 * the layout that should be used when the mode switches. 645 */ 646 private Layout mSavedMarqueeModeLayout; 647 648 // Do not update following mText/mSpannable/mPrecomputed except for setTextInternal() 649 @ViewDebug.ExportedProperty(category = "text") 650 private @Nullable CharSequence mText; 651 private @Nullable Spannable mSpannable; 652 private @Nullable PrecomputedText mPrecomputed; 653 654 private CharSequence mTransformed; 655 private BufferType mBufferType = BufferType.NORMAL; 656 657 private CharSequence mHint; 658 private Layout mHintLayout; 659 660 private MovementMethod mMovement; 661 662 private TransformationMethod mTransformation; 663 private boolean mAllowTransformationLengthChange; 664 private ChangeWatcher mChangeWatcher; 665 666 private ArrayList<TextWatcher> mListeners; 667 668 // display attributes 669 private final TextPaint mTextPaint; 670 private boolean mUserSetTextScaleX; 671 private Layout mLayout; 672 private boolean mLocalesChanged = false; 673 674 // True if setKeyListener() has been explicitly called 675 private boolean mListenerChanged = false; 676 // True if internationalized input should be used for numbers and date and time. 677 private final boolean mUseInternationalizedInput; 678 // True if fallback fonts that end up getting used should be allowed to affect line spacing. 679 /* package */ boolean mUseFallbackLineSpacing; 680 681 @ViewDebug.ExportedProperty(category = "text") 682 private int mGravity = Gravity.TOP | Gravity.START; 683 private boolean mHorizontallyScrolling; 684 685 private int mAutoLinkMask; 686 private boolean mLinksClickable = true; 687 688 private float mSpacingMult = 1.0f; 689 private float mSpacingAdd = 0.0f; 690 691 private int mBreakStrategy; 692 private int mHyphenationFrequency; 693 private int mJustificationMode; 694 695 private int mMaximum = Integer.MAX_VALUE; 696 private int mMaxMode = LINES; 697 private int mMinimum = 0; 698 private int mMinMode = LINES; 699 700 private int mOldMaximum = mMaximum; 701 private int mOldMaxMode = mMaxMode; 702 703 private int mMaxWidth = Integer.MAX_VALUE; 704 private int mMaxWidthMode = PIXELS; 705 private int mMinWidth = 0; 706 private int mMinWidthMode = PIXELS; 707 708 private boolean mSingleLine; 709 private int mDesiredHeightAtMeasure = -1; 710 private boolean mIncludePad = true; 711 private int mDeferScroll = -1; 712 713 // tmp primitives, so we don't alloc them on each draw 714 private Rect mTempRect; 715 private long mLastScroll; 716 private Scroller mScroller; 717 private TextPaint mTempTextPaint; 718 719 private BoringLayout.Metrics mBoring, mHintBoring; 720 private BoringLayout mSavedLayout, mSavedHintLayout; 721 722 private TextDirectionHeuristic mTextDir; 723 724 private InputFilter[] mFilters = NO_FILTERS; 725 726 private volatile Locale mCurrentSpellCheckerLocaleCache; 727 728 // It is possible to have a selection even when mEditor is null (programmatically set, like when 729 // a link is pressed). These highlight-related fields do not go in mEditor. 730 int mHighlightColor = 0x6633B5E5; 731 private Path mHighlightPath; 732 private final Paint mHighlightPaint; 733 private boolean mHighlightPathBogus = true; 734 735 // Although these fields are specific to editable text, they are not added to Editor because 736 // they are defined by the TextView's style and are theme-dependent. 737 int mCursorDrawableRes; 738 // These six fields, could be moved to Editor, since we know their default values and we 739 // could condition the creation of the Editor to a non standard value. This is however 740 // brittle since the hardcoded values here (such as 741 // com.android.internal.R.drawable.text_select_handle_left) would have to be updated if the 742 // default style is modified. 743 int mTextSelectHandleLeftRes; 744 int mTextSelectHandleRightRes; 745 int mTextSelectHandleRes; 746 int mTextEditSuggestionItemLayout; 747 int mTextEditSuggestionContainerLayout; 748 int mTextEditSuggestionHighlightStyle; 749 750 /** 751 * {@link EditText} specific data, created on demand when one of the Editor fields is used. 752 * See {@link #createEditorIfNeeded()}. 753 */ 754 private Editor mEditor; 755 756 private static final int DEVICE_PROVISIONED_UNKNOWN = 0; 757 private static final int DEVICE_PROVISIONED_NO = 1; 758 private static final int DEVICE_PROVISIONED_YES = 2; 759 760 /** 761 * Some special options such as sharing selected text should only be shown if the device 762 * is provisioned. Only check the provisioned state once for a given view instance. 763 */ 764 private int mDeviceProvisionedState = DEVICE_PROVISIONED_UNKNOWN; 765 766 /** 767 * The TextView does not auto-size text (default). 768 */ 769 public static final int AUTO_SIZE_TEXT_TYPE_NONE = 0; 770 771 /** 772 * The TextView scales text size both horizontally and vertically to fit within the 773 * container. 774 */ 775 public static final int AUTO_SIZE_TEXT_TYPE_UNIFORM = 1; 776 777 /** @hide */ 778 @IntDef(prefix = { "AUTO_SIZE_TEXT_TYPE_" }, value = { 779 AUTO_SIZE_TEXT_TYPE_NONE, 780 AUTO_SIZE_TEXT_TYPE_UNIFORM 781 }) 782 @Retention(RetentionPolicy.SOURCE) 783 public @interface AutoSizeTextType {} 784 // Default minimum size for auto-sizing text in scaled pixels. 785 private static final int DEFAULT_AUTO_SIZE_MIN_TEXT_SIZE_IN_SP = 12; 786 // Default maximum size for auto-sizing text in scaled pixels. 787 private static final int DEFAULT_AUTO_SIZE_MAX_TEXT_SIZE_IN_SP = 112; 788 // Default value for the step size in pixels. 789 private static final int DEFAULT_AUTO_SIZE_GRANULARITY_IN_PX = 1; 790 // Use this to specify that any of the auto-size configuration int values have not been set. 791 private static final float UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE = -1f; 792 // Auto-size text type. 793 private int mAutoSizeTextType = AUTO_SIZE_TEXT_TYPE_NONE; 794 // Specify if auto-size text is needed. 795 private boolean mNeedsAutoSizeText = false; 796 // Step size for auto-sizing in pixels. 797 private float mAutoSizeStepGranularityInPx = UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE; 798 // Minimum text size for auto-sizing in pixels. 799 private float mAutoSizeMinTextSizeInPx = UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE; 800 // Maximum text size for auto-sizing in pixels. 801 private float mAutoSizeMaxTextSizeInPx = UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE; 802 // Contains a (specified or computed) distinct sorted set of text sizes in pixels to pick from 803 // when auto-sizing text. 804 private int[] mAutoSizeTextSizesInPx = EmptyArray.INT; 805 // Specifies whether auto-size should use the provided auto size steps set or if it should 806 // build the steps set using mAutoSizeMinTextSizeInPx, mAutoSizeMaxTextSizeInPx and 807 // mAutoSizeStepGranularityInPx. 808 private boolean mHasPresetAutoSizeValues = false; 809 810 // Autofill-related attributes 811 // 812 // Indicates whether the text was set statically or dynamically, so it can be used to 813 // sanitize autofill requests. 814 private boolean mTextSetFromXmlOrResourceId = false; 815 // Resource id used to set the text. 816 private @StringRes int mTextId = ResourceId.ID_NULL; 817 // Last value used on AFM.notifyValueChanged(), used to optimize autofill workflow by avoiding 818 // calls when the value did not change 819 private CharSequence mLastValueSentToAutofillManager; 820 // 821 // End of autofill-related attributes 822 823 /** 824 * Kick-start the font cache for the zygote process (to pay the cost of 825 * initializing freetype for our default font only once). 826 * @hide 827 */ 828 public static void preloadFontCache() { 829 Paint p = new Paint(); 830 p.setAntiAlias(true); 831 // Ensure that the Typeface is loaded here. 832 // Typically, Typeface is preloaded by zygote but not on all devices, e.g. Android Auto. 833 // So, sets Typeface.DEFAULT explicitly here for ensuring that the Typeface is loaded here 834 // since Paint.measureText can not be called without Typeface static initializer. 835 p.setTypeface(Typeface.DEFAULT); 836 // We don't care about the result, just the side-effect of measuring. 837 p.measureText("H"); 838 } 839 840 /** 841 * Interface definition for a callback to be invoked when an action is 842 * performed on the editor. 843 */ 844 public interface OnEditorActionListener { 845 /** 846 * Called when an action is being performed. 847 * 848 * @param v The view that was clicked. 849 * @param actionId Identifier of the action. This will be either the 850 * identifier you supplied, or {@link EditorInfo#IME_NULL 851 * EditorInfo.IME_NULL} if being called due to the enter key 852 * being pressed. 853 * @param event If triggered by an enter key, this is the event; 854 * otherwise, this is null. 855 * @return Return true if you have consumed the action, else false. 856 */ 857 boolean onEditorAction(TextView v, int actionId, KeyEvent event); 858 } 859 860 public TextView(Context context) { 861 this(context, null); 862 } 863 864 public TextView(Context context, @Nullable AttributeSet attrs) { 865 this(context, attrs, com.android.internal.R.attr.textViewStyle); 866 } 867 868 public TextView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) { 869 this(context, attrs, defStyleAttr, 0); 870 } 871 872 @SuppressWarnings("deprecation") 873 public TextView( 874 Context context, @Nullable AttributeSet attrs, int defStyleAttr, int defStyleRes) { 875 super(context, attrs, defStyleAttr, defStyleRes); 876 877 // TextView is important by default, unless app developer overrode attribute. 878 if (getImportantForAutofill() == IMPORTANT_FOR_AUTOFILL_AUTO) { 879 setImportantForAutofill(IMPORTANT_FOR_AUTOFILL_YES); 880 } 881 882 setTextInternal(""); 883 884 final Resources res = getResources(); 885 final CompatibilityInfo compat = res.getCompatibilityInfo(); 886 887 mTextPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG); 888 mTextPaint.density = res.getDisplayMetrics().density; 889 mTextPaint.setCompatibilityScaling(compat.applicationScale); 890 891 mHighlightPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 892 mHighlightPaint.setCompatibilityScaling(compat.applicationScale); 893 894 mMovement = getDefaultMovementMethod(); 895 896 mTransformation = null; 897 898 final TextAppearanceAttributes attributes = new TextAppearanceAttributes(); 899 attributes.mTextColor = ColorStateList.valueOf(0xFF000000); 900 attributes.mTextSize = 15; 901 mBreakStrategy = Layout.BREAK_STRATEGY_SIMPLE; 902 mHyphenationFrequency = Layout.HYPHENATION_FREQUENCY_NONE; 903 mJustificationMode = Layout.JUSTIFICATION_MODE_NONE; 904 905 final Resources.Theme theme = context.getTheme(); 906 907 /* 908 * Look the appearance up without checking first if it exists because 909 * almost every TextView has one and it greatly simplifies the logic 910 * to be able to parse the appearance first and then let specific tags 911 * for this View override it. 912 */ 913 TypedArray a = theme.obtainStyledAttributes(attrs, 914 com.android.internal.R.styleable.TextViewAppearance, defStyleAttr, defStyleRes); 915 TypedArray appearance = null; 916 int ap = a.getResourceId( 917 com.android.internal.R.styleable.TextViewAppearance_textAppearance, -1); 918 a.recycle(); 919 if (ap != -1) { 920 appearance = theme.obtainStyledAttributes( 921 ap, com.android.internal.R.styleable.TextAppearance); 922 } 923 if (appearance != null) { 924 readTextAppearance(context, appearance, attributes, false /* styleArray */); 925 attributes.mFontFamilyExplicit = false; 926 appearance.recycle(); 927 } 928 929 boolean editable = getDefaultEditable(); 930 CharSequence inputMethod = null; 931 int numeric = 0; 932 CharSequence digits = null; 933 boolean phone = false; 934 boolean autotext = false; 935 int autocap = -1; 936 int buffertype = 0; 937 boolean selectallonfocus = false; 938 Drawable drawableLeft = null, drawableTop = null, drawableRight = null, 939 drawableBottom = null, drawableStart = null, drawableEnd = null; 940 ColorStateList drawableTint = null; 941 PorterDuff.Mode drawableTintMode = null; 942 int drawablePadding = 0; 943 int ellipsize = ELLIPSIZE_NOT_SET; 944 boolean singleLine = false; 945 int maxlength = -1; 946 CharSequence text = ""; 947 CharSequence hint = null; 948 boolean password = false; 949 float autoSizeMinTextSizeInPx = UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE; 950 float autoSizeMaxTextSizeInPx = UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE; 951 float autoSizeStepGranularityInPx = UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE; 952 int inputType = EditorInfo.TYPE_NULL; 953 a = theme.obtainStyledAttributes( 954 attrs, com.android.internal.R.styleable.TextView, defStyleAttr, defStyleRes); 955 int firstBaselineToTopHeight = -1; 956 int lastBaselineToBottomHeight = -1; 957 int lineHeight = -1; 958 959 readTextAppearance(context, a, attributes, true /* styleArray */); 960 961 int n = a.getIndexCount(); 962 963 // Must set id in a temporary variable because it will be reset by setText() 964 boolean textIsSetFromXml = false; 965 for (int i = 0; i < n; i++) { 966 int attr = a.getIndex(i); 967 968 switch (attr) { 969 case com.android.internal.R.styleable.TextView_editable: 970 editable = a.getBoolean(attr, editable); 971 break; 972 973 case com.android.internal.R.styleable.TextView_inputMethod: 974 inputMethod = a.getText(attr); 975 break; 976 977 case com.android.internal.R.styleable.TextView_numeric: 978 numeric = a.getInt(attr, numeric); 979 break; 980 981 case com.android.internal.R.styleable.TextView_digits: 982 digits = a.getText(attr); 983 break; 984 985 case com.android.internal.R.styleable.TextView_phoneNumber: 986 phone = a.getBoolean(attr, phone); 987 break; 988 989 case com.android.internal.R.styleable.TextView_autoText: 990 autotext = a.getBoolean(attr, autotext); 991 break; 992 993 case com.android.internal.R.styleable.TextView_capitalize: 994 autocap = a.getInt(attr, autocap); 995 break; 996 997 case com.android.internal.R.styleable.TextView_bufferType: 998 buffertype = a.getInt(attr, buffertype); 999 break; 1000 1001 case com.android.internal.R.styleable.TextView_selectAllOnFocus: 1002 selectallonfocus = a.getBoolean(attr, selectallonfocus); 1003 break; 1004 1005 case com.android.internal.R.styleable.TextView_autoLink: 1006 mAutoLinkMask = a.getInt(attr, 0); 1007 break; 1008 1009 case com.android.internal.R.styleable.TextView_linksClickable: 1010 mLinksClickable = a.getBoolean(attr, true); 1011 break; 1012 1013 case com.android.internal.R.styleable.TextView_drawableLeft: 1014 drawableLeft = a.getDrawable(attr); 1015 break; 1016 1017 case com.android.internal.R.styleable.TextView_drawableTop: 1018 drawableTop = a.getDrawable(attr); 1019 break; 1020 1021 case com.android.internal.R.styleable.TextView_drawableRight: 1022 drawableRight = a.getDrawable(attr); 1023 break; 1024 1025 case com.android.internal.R.styleable.TextView_drawableBottom: 1026 drawableBottom = a.getDrawable(attr); 1027 break; 1028 1029 case com.android.internal.R.styleable.TextView_drawableStart: 1030 drawableStart = a.getDrawable(attr); 1031 break; 1032 1033 case com.android.internal.R.styleable.TextView_drawableEnd: 1034 drawableEnd = a.getDrawable(attr); 1035 break; 1036 1037 case com.android.internal.R.styleable.TextView_drawableTint: 1038 drawableTint = a.getColorStateList(attr); 1039 break; 1040 1041 case com.android.internal.R.styleable.TextView_drawableTintMode: 1042 drawableTintMode = Drawable.parseTintMode(a.getInt(attr, -1), drawableTintMode); 1043 break; 1044 1045 case com.android.internal.R.styleable.TextView_drawablePadding: 1046 drawablePadding = a.getDimensionPixelSize(attr, drawablePadding); 1047 break; 1048 1049 case com.android.internal.R.styleable.TextView_maxLines: 1050 setMaxLines(a.getInt(attr, -1)); 1051 break; 1052 1053 case com.android.internal.R.styleable.TextView_maxHeight: 1054 setMaxHeight(a.getDimensionPixelSize(attr, -1)); 1055 break; 1056 1057 case com.android.internal.R.styleable.TextView_lines: 1058 setLines(a.getInt(attr, -1)); 1059 break; 1060 1061 case com.android.internal.R.styleable.TextView_height: 1062 setHeight(a.getDimensionPixelSize(attr, -1)); 1063 break; 1064 1065 case com.android.internal.R.styleable.TextView_minLines: 1066 setMinLines(a.getInt(attr, -1)); 1067 break; 1068 1069 case com.android.internal.R.styleable.TextView_minHeight: 1070 setMinHeight(a.getDimensionPixelSize(attr, -1)); 1071 break; 1072 1073 case com.android.internal.R.styleable.TextView_maxEms: 1074 setMaxEms(a.getInt(attr, -1)); 1075 break; 1076 1077 case com.android.internal.R.styleable.TextView_maxWidth: 1078 setMaxWidth(a.getDimensionPixelSize(attr, -1)); 1079 break; 1080 1081 case com.android.internal.R.styleable.TextView_ems: 1082 setEms(a.getInt(attr, -1)); 1083 break; 1084 1085 case com.android.internal.R.styleable.TextView_width: 1086 setWidth(a.getDimensionPixelSize(attr, -1)); 1087 break; 1088 1089 case com.android.internal.R.styleable.TextView_minEms: 1090 setMinEms(a.getInt(attr, -1)); 1091 break; 1092 1093 case com.android.internal.R.styleable.TextView_minWidth: 1094 setMinWidth(a.getDimensionPixelSize(attr, -1)); 1095 break; 1096 1097 case com.android.internal.R.styleable.TextView_gravity: 1098 setGravity(a.getInt(attr, -1)); 1099 break; 1100 1101 case com.android.internal.R.styleable.TextView_hint: 1102 hint = a.getText(attr); 1103 break; 1104 1105 case com.android.internal.R.styleable.TextView_text: 1106 textIsSetFromXml = true; 1107 mTextId = a.getResourceId(attr, ResourceId.ID_NULL); 1108 text = a.getText(attr); 1109 break; 1110 1111 case com.android.internal.R.styleable.TextView_scrollHorizontally: 1112 if (a.getBoolean(attr, false)) { 1113 setHorizontallyScrolling(true); 1114 } 1115 break; 1116 1117 case com.android.internal.R.styleable.TextView_singleLine: 1118 singleLine = a.getBoolean(attr, singleLine); 1119 break; 1120 1121 case com.android.internal.R.styleable.TextView_ellipsize: 1122 ellipsize = a.getInt(attr, ellipsize); 1123 break; 1124 1125 case com.android.internal.R.styleable.TextView_marqueeRepeatLimit: 1126 setMarqueeRepeatLimit(a.getInt(attr, mMarqueeRepeatLimit)); 1127 break; 1128 1129 case com.android.internal.R.styleable.TextView_includeFontPadding: 1130 if (!a.getBoolean(attr, true)) { 1131 setIncludeFontPadding(false); 1132 } 1133 break; 1134 1135 case com.android.internal.R.styleable.TextView_cursorVisible: 1136 if (!a.getBoolean(attr, true)) { 1137 setCursorVisible(false); 1138 } 1139 break; 1140 1141 case com.android.internal.R.styleable.TextView_maxLength: 1142 maxlength = a.getInt(attr, -1); 1143 break; 1144 1145 case com.android.internal.R.styleable.TextView_textScaleX: 1146 setTextScaleX(a.getFloat(attr, 1.0f)); 1147 break; 1148 1149 case com.android.internal.R.styleable.TextView_freezesText: 1150 mFreezesText = a.getBoolean(attr, false); 1151 break; 1152 1153 case com.android.internal.R.styleable.TextView_enabled: 1154 setEnabled(a.getBoolean(attr, isEnabled())); 1155 break; 1156 1157 case com.android.internal.R.styleable.TextView_password: 1158 password = a.getBoolean(attr, password); 1159 break; 1160 1161 case com.android.internal.R.styleable.TextView_lineSpacingExtra: 1162 mSpacingAdd = a.getDimensionPixelSize(attr, (int) mSpacingAdd); 1163 break; 1164 1165 case com.android.internal.R.styleable.TextView_lineSpacingMultiplier: 1166 mSpacingMult = a.getFloat(attr, mSpacingMult); 1167 break; 1168 1169 case com.android.internal.R.styleable.TextView_inputType: 1170 inputType = a.getInt(attr, EditorInfo.TYPE_NULL); 1171 break; 1172 1173 case com.android.internal.R.styleable.TextView_allowUndo: 1174 createEditorIfNeeded(); 1175 mEditor.mAllowUndo = a.getBoolean(attr, true); 1176 break; 1177 1178 case com.android.internal.R.styleable.TextView_imeOptions: 1179 createEditorIfNeeded(); 1180 mEditor.createInputContentTypeIfNeeded(); 1181 mEditor.mInputContentType.imeOptions = a.getInt(attr, 1182 mEditor.mInputContentType.imeOptions); 1183 break; 1184 1185 case com.android.internal.R.styleable.TextView_imeActionLabel: 1186 createEditorIfNeeded(); 1187 mEditor.createInputContentTypeIfNeeded(); 1188 mEditor.mInputContentType.imeActionLabel = a.getText(attr); 1189 break; 1190 1191 case com.android.internal.R.styleable.TextView_imeActionId: 1192 createEditorIfNeeded(); 1193 mEditor.createInputContentTypeIfNeeded(); 1194 mEditor.mInputContentType.imeActionId = a.getInt(attr, 1195 mEditor.mInputContentType.imeActionId); 1196 break; 1197 1198 case com.android.internal.R.styleable.TextView_privateImeOptions: 1199 setPrivateImeOptions(a.getString(attr)); 1200 break; 1201 1202 case com.android.internal.R.styleable.TextView_editorExtras: 1203 try { 1204 setInputExtras(a.getResourceId(attr, 0)); 1205 } catch (XmlPullParserException e) { 1206 Log.w(LOG_TAG, "Failure reading input extras", e); 1207 } catch (IOException e) { 1208 Log.w(LOG_TAG, "Failure reading input extras", e); 1209 } 1210 break; 1211 1212 case com.android.internal.R.styleable.TextView_textCursorDrawable: 1213 mCursorDrawableRes = a.getResourceId(attr, 0); 1214 break; 1215 1216 case com.android.internal.R.styleable.TextView_textSelectHandleLeft: 1217 mTextSelectHandleLeftRes = a.getResourceId(attr, 0); 1218 break; 1219 1220 case com.android.internal.R.styleable.TextView_textSelectHandleRight: 1221 mTextSelectHandleRightRes = a.getResourceId(attr, 0); 1222 break; 1223 1224 case com.android.internal.R.styleable.TextView_textSelectHandle: 1225 mTextSelectHandleRes = a.getResourceId(attr, 0); 1226 break; 1227 1228 case com.android.internal.R.styleable.TextView_textEditSuggestionItemLayout: 1229 mTextEditSuggestionItemLayout = a.getResourceId(attr, 0); 1230 break; 1231 1232 case com.android.internal.R.styleable.TextView_textEditSuggestionContainerLayout: 1233 mTextEditSuggestionContainerLayout = a.getResourceId(attr, 0); 1234 break; 1235 1236 case com.android.internal.R.styleable.TextView_textEditSuggestionHighlightStyle: 1237 mTextEditSuggestionHighlightStyle = a.getResourceId(attr, 0); 1238 break; 1239 1240 case com.android.internal.R.styleable.TextView_textIsSelectable: 1241 setTextIsSelectable(a.getBoolean(attr, false)); 1242 break; 1243 1244 case com.android.internal.R.styleable.TextView_breakStrategy: 1245 mBreakStrategy = a.getInt(attr, Layout.BREAK_STRATEGY_SIMPLE); 1246 break; 1247 1248 case com.android.internal.R.styleable.TextView_hyphenationFrequency: 1249 mHyphenationFrequency = a.getInt(attr, Layout.HYPHENATION_FREQUENCY_NONE); 1250 break; 1251 1252 case com.android.internal.R.styleable.TextView_autoSizeTextType: 1253 mAutoSizeTextType = a.getInt(attr, AUTO_SIZE_TEXT_TYPE_NONE); 1254 break; 1255 1256 case com.android.internal.R.styleable.TextView_autoSizeStepGranularity: 1257 autoSizeStepGranularityInPx = a.getDimension(attr, 1258 UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE); 1259 break; 1260 1261 case com.android.internal.R.styleable.TextView_autoSizeMinTextSize: 1262 autoSizeMinTextSizeInPx = a.getDimension(attr, 1263 UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE); 1264 break; 1265 1266 case com.android.internal.R.styleable.TextView_autoSizeMaxTextSize: 1267 autoSizeMaxTextSizeInPx = a.getDimension(attr, 1268 UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE); 1269 break; 1270 1271 case com.android.internal.R.styleable.TextView_autoSizePresetSizes: 1272 final int autoSizeStepSizeArrayResId = a.getResourceId(attr, 0); 1273 if (autoSizeStepSizeArrayResId > 0) { 1274 final TypedArray autoSizePresetTextSizes = a.getResources() 1275 .obtainTypedArray(autoSizeStepSizeArrayResId); 1276 setupAutoSizeUniformPresetSizes(autoSizePresetTextSizes); 1277 autoSizePresetTextSizes.recycle(); 1278 } 1279 break; 1280 case com.android.internal.R.styleable.TextView_justificationMode: 1281 mJustificationMode = a.getInt(attr, Layout.JUSTIFICATION_MODE_NONE); 1282 break; 1283 1284 case com.android.internal.R.styleable.TextView_firstBaselineToTopHeight: 1285 firstBaselineToTopHeight = a.getDimensionPixelSize(attr, -1); 1286 break; 1287 1288 case com.android.internal.R.styleable.TextView_lastBaselineToBottomHeight: 1289 lastBaselineToBottomHeight = a.getDimensionPixelSize(attr, -1); 1290 break; 1291 1292 case com.android.internal.R.styleable.TextView_lineHeight: 1293 lineHeight = a.getDimensionPixelSize(attr, -1); 1294 break; 1295 } 1296 } 1297 1298 a.recycle(); 1299 1300 BufferType bufferType = BufferType.EDITABLE; 1301 1302 final int variation = 1303 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 1304 final boolean passwordInputType = variation 1305 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD); 1306 final boolean webPasswordInputType = variation 1307 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD); 1308 final boolean numberPasswordInputType = variation 1309 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 1310 1311 final int targetSdkVersion = context.getApplicationInfo().targetSdkVersion; 1312 mUseInternationalizedInput = targetSdkVersion >= VERSION_CODES.O; 1313 mUseFallbackLineSpacing = targetSdkVersion >= VERSION_CODES.P; 1314 1315 if (inputMethod != null) { 1316 Class<?> c; 1317 1318 try { 1319 c = Class.forName(inputMethod.toString()); 1320 } catch (ClassNotFoundException ex) { 1321 throw new RuntimeException(ex); 1322 } 1323 1324 try { 1325 createEditorIfNeeded(); 1326 mEditor.mKeyListener = (KeyListener) c.newInstance(); 1327 } catch (InstantiationException ex) { 1328 throw new RuntimeException(ex); 1329 } catch (IllegalAccessException ex) { 1330 throw new RuntimeException(ex); 1331 } 1332 try { 1333 mEditor.mInputType = inputType != EditorInfo.TYPE_NULL 1334 ? inputType 1335 : mEditor.mKeyListener.getInputType(); 1336 } catch (IncompatibleClassChangeError e) { 1337 mEditor.mInputType = EditorInfo.TYPE_CLASS_TEXT; 1338 } 1339 } else if (digits != null) { 1340 createEditorIfNeeded(); 1341 mEditor.mKeyListener = DigitsKeyListener.getInstance(digits.toString()); 1342 // If no input type was specified, we will default to generic 1343 // text, since we can't tell the IME about the set of digits 1344 // that was selected. 1345 mEditor.mInputType = inputType != EditorInfo.TYPE_NULL 1346 ? inputType : EditorInfo.TYPE_CLASS_TEXT; 1347 } else if (inputType != EditorInfo.TYPE_NULL) { 1348 setInputType(inputType, true); 1349 // If set, the input type overrides what was set using the deprecated singleLine flag. 1350 singleLine = !isMultilineInputType(inputType); 1351 } else if (phone) { 1352 createEditorIfNeeded(); 1353 mEditor.mKeyListener = DialerKeyListener.getInstance(); 1354 mEditor.mInputType = inputType = EditorInfo.TYPE_CLASS_PHONE; 1355 } else if (numeric != 0) { 1356 createEditorIfNeeded(); 1357 mEditor.mKeyListener = DigitsKeyListener.getInstance( 1358 null, // locale 1359 (numeric & SIGNED) != 0, 1360 (numeric & DECIMAL) != 0); 1361 inputType = mEditor.mKeyListener.getInputType(); 1362 mEditor.mInputType = inputType; 1363 } else if (autotext || autocap != -1) { 1364 TextKeyListener.Capitalize cap; 1365 1366 inputType = EditorInfo.TYPE_CLASS_TEXT; 1367 1368 switch (autocap) { 1369 case 1: 1370 cap = TextKeyListener.Capitalize.SENTENCES; 1371 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES; 1372 break; 1373 1374 case 2: 1375 cap = TextKeyListener.Capitalize.WORDS; 1376 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS; 1377 break; 1378 1379 case 3: 1380 cap = TextKeyListener.Capitalize.CHARACTERS; 1381 inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS; 1382 break; 1383 1384 default: 1385 cap = TextKeyListener.Capitalize.NONE; 1386 break; 1387 } 1388 1389 createEditorIfNeeded(); 1390 mEditor.mKeyListener = TextKeyListener.getInstance(autotext, cap); 1391 mEditor.mInputType = inputType; 1392 } else if (editable) { 1393 createEditorIfNeeded(); 1394 mEditor.mKeyListener = TextKeyListener.getInstance(); 1395 mEditor.mInputType = EditorInfo.TYPE_CLASS_TEXT; 1396 } else if (isTextSelectable()) { 1397 // Prevent text changes from keyboard. 1398 if (mEditor != null) { 1399 mEditor.mKeyListener = null; 1400 mEditor.mInputType = EditorInfo.TYPE_NULL; 1401 } 1402 bufferType = BufferType.SPANNABLE; 1403 // So that selection can be changed using arrow keys and touch is handled. 1404 setMovementMethod(ArrowKeyMovementMethod.getInstance()); 1405 } else { 1406 if (mEditor != null) mEditor.mKeyListener = null; 1407 1408 switch (buffertype) { 1409 case 0: 1410 bufferType = BufferType.NORMAL; 1411 break; 1412 case 1: 1413 bufferType = BufferType.SPANNABLE; 1414 break; 1415 case 2: 1416 bufferType = BufferType.EDITABLE; 1417 break; 1418 } 1419 } 1420 1421 if (mEditor != null) { 1422 mEditor.adjustInputType(password, passwordInputType, webPasswordInputType, 1423 numberPasswordInputType); 1424 } 1425 1426 if (selectallonfocus) { 1427 createEditorIfNeeded(); 1428 mEditor.mSelectAllOnFocus = true; 1429 1430 if (bufferType == BufferType.NORMAL) { 1431 bufferType = BufferType.SPANNABLE; 1432 } 1433 } 1434 1435 // Set up the tint (if needed) before setting the drawables so that it 1436 // gets applied correctly. 1437 if (drawableTint != null || drawableTintMode != null) { 1438 if (mDrawables == null) { 1439 mDrawables = new Drawables(context); 1440 } 1441 if (drawableTint != null) { 1442 mDrawables.mTintList = drawableTint; 1443 mDrawables.mHasTint = true; 1444 } 1445 if (drawableTintMode != null) { 1446 mDrawables.mTintMode = drawableTintMode; 1447 mDrawables.mHasTintMode = true; 1448 } 1449 } 1450 1451 // This call will save the initial left/right drawables 1452 setCompoundDrawablesWithIntrinsicBounds( 1453 drawableLeft, drawableTop, drawableRight, drawableBottom); 1454 setRelativeDrawablesIfNeeded(drawableStart, drawableEnd); 1455 setCompoundDrawablePadding(drawablePadding); 1456 1457 // Same as setSingleLine(), but make sure the transformation method and the maximum number 1458 // of lines of height are unchanged for multi-line TextViews. 1459 setInputTypeSingleLine(singleLine); 1460 applySingleLine(singleLine, singleLine, singleLine); 1461 1462 if (singleLine && getKeyListener() == null && ellipsize == ELLIPSIZE_NOT_SET) { 1463 ellipsize = ELLIPSIZE_END; 1464 } 1465 1466 switch (ellipsize) { 1467 case ELLIPSIZE_START: 1468 setEllipsize(TextUtils.TruncateAt.START); 1469 break; 1470 case ELLIPSIZE_MIDDLE: 1471 setEllipsize(TextUtils.TruncateAt.MIDDLE); 1472 break; 1473 case ELLIPSIZE_END: 1474 setEllipsize(TextUtils.TruncateAt.END); 1475 break; 1476 case ELLIPSIZE_MARQUEE: 1477 if (ViewConfiguration.get(context).isFadingMarqueeEnabled()) { 1478 setHorizontalFadingEdgeEnabled(true); 1479 mMarqueeFadeMode = MARQUEE_FADE_NORMAL; 1480 } else { 1481 setHorizontalFadingEdgeEnabled(false); 1482 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS; 1483 } 1484 setEllipsize(TextUtils.TruncateAt.MARQUEE); 1485 break; 1486 } 1487 1488 final boolean isPassword = password || passwordInputType || webPasswordInputType 1489 || numberPasswordInputType; 1490 final boolean isMonospaceEnforced = isPassword || (mEditor != null 1491 && (mEditor.mInputType 1492 & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION)) 1493 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD)); 1494 if (isMonospaceEnforced) { 1495 attributes.mTypefaceIndex = MONOSPACE; 1496 } 1497 1498 applyTextAppearance(attributes); 1499 1500 if (isPassword) { 1501 setTransformationMethod(PasswordTransformationMethod.getInstance()); 1502 } 1503 1504 if (maxlength >= 0) { 1505 setFilters(new InputFilter[] { new InputFilter.LengthFilter(maxlength) }); 1506 } else { 1507 setFilters(NO_FILTERS); 1508 } 1509 1510 setText(text, bufferType); 1511 if (textIsSetFromXml) { 1512 mTextSetFromXmlOrResourceId = true; 1513 } 1514 1515 if (hint != null) setHint(hint); 1516 1517 /* 1518 * Views are not normally clickable unless specified to be. 1519 * However, TextViews that have input or movement methods *are* 1520 * clickable by default. By setting clickable here, we implicitly set focusable as well 1521 * if not overridden by the developer. 1522 */ 1523 a = context.obtainStyledAttributes( 1524 attrs, com.android.internal.R.styleable.View, defStyleAttr, defStyleRes); 1525 boolean canInputOrMove = (mMovement != null || getKeyListener() != null); 1526 boolean clickable = canInputOrMove || isClickable(); 1527 boolean longClickable = canInputOrMove || isLongClickable(); 1528 int focusable = getFocusable(); 1529 1530 n = a.getIndexCount(); 1531 for (int i = 0; i < n; i++) { 1532 int attr = a.getIndex(i); 1533 1534 switch (attr) { 1535 case com.android.internal.R.styleable.View_focusable: 1536 TypedValue val = new TypedValue(); 1537 if (a.getValue(attr, val)) { 1538 focusable = (val.type == TypedValue.TYPE_INT_BOOLEAN) 1539 ? (val.data == 0 ? NOT_FOCUSABLE : FOCUSABLE) 1540 : val.data; 1541 } 1542 break; 1543 1544 case com.android.internal.R.styleable.View_clickable: 1545 clickable = a.getBoolean(attr, clickable); 1546 break; 1547 1548 case com.android.internal.R.styleable.View_longClickable: 1549 longClickable = a.getBoolean(attr, longClickable); 1550 break; 1551 } 1552 } 1553 a.recycle(); 1554 1555 // Some apps were relying on the undefined behavior of focusable winning over 1556 // focusableInTouchMode != focusable in TextViews if both were specified in XML (usually 1557 // when starting with EditText and setting only focusable=false). To keep those apps from 1558 // breaking, re-apply the focusable attribute here. 1559 if (focusable != getFocusable()) { 1560 setFocusable(focusable); 1561 } 1562 setClickable(clickable); 1563 setLongClickable(longClickable); 1564 1565 if (mEditor != null) mEditor.prepareCursorControllers(); 1566 1567 // If not explicitly specified this view is important for accessibility. 1568 if (getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 1569 setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 1570 } 1571 1572 if (supportsAutoSizeText()) { 1573 if (mAutoSizeTextType == AUTO_SIZE_TEXT_TYPE_UNIFORM) { 1574 // If uniform auto-size has been specified but preset values have not been set then 1575 // replace the auto-size configuration values that have not been specified with the 1576 // defaults. 1577 if (!mHasPresetAutoSizeValues) { 1578 final DisplayMetrics displayMetrics = getResources().getDisplayMetrics(); 1579 1580 if (autoSizeMinTextSizeInPx == UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE) { 1581 autoSizeMinTextSizeInPx = TypedValue.applyDimension( 1582 TypedValue.COMPLEX_UNIT_SP, 1583 DEFAULT_AUTO_SIZE_MIN_TEXT_SIZE_IN_SP, 1584 displayMetrics); 1585 } 1586 1587 if (autoSizeMaxTextSizeInPx == UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE) { 1588 autoSizeMaxTextSizeInPx = TypedValue.applyDimension( 1589 TypedValue.COMPLEX_UNIT_SP, 1590 DEFAULT_AUTO_SIZE_MAX_TEXT_SIZE_IN_SP, 1591 displayMetrics); 1592 } 1593 1594 if (autoSizeStepGranularityInPx 1595 == UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE) { 1596 autoSizeStepGranularityInPx = DEFAULT_AUTO_SIZE_GRANULARITY_IN_PX; 1597 } 1598 1599 validateAndSetAutoSizeTextTypeUniformConfiguration(autoSizeMinTextSizeInPx, 1600 autoSizeMaxTextSizeInPx, 1601 autoSizeStepGranularityInPx); 1602 } 1603 1604 setupAutoSizeText(); 1605 } 1606 } else { 1607 mAutoSizeTextType = AUTO_SIZE_TEXT_TYPE_NONE; 1608 } 1609 1610 if (firstBaselineToTopHeight >= 0) { 1611 setFirstBaselineToTopHeight(firstBaselineToTopHeight); 1612 } 1613 if (lastBaselineToBottomHeight >= 0) { 1614 setLastBaselineToBottomHeight(lastBaselineToBottomHeight); 1615 } 1616 if (lineHeight >= 0) { 1617 setLineHeight(lineHeight); 1618 } 1619 } 1620 1621 // Update mText and mPrecomputed 1622 private void setTextInternal(@Nullable CharSequence text) { 1623 mText = text; 1624 mSpannable = (text instanceof Spannable) ? (Spannable) text : null; 1625 mPrecomputed = (text instanceof PrecomputedText) ? (PrecomputedText) text : null; 1626 } 1627 1628 /** 1629 * Specify whether this widget should automatically scale the text to try to perfectly fit 1630 * within the layout bounds by using the default auto-size configuration. 1631 * 1632 * @param autoSizeTextType the type of auto-size. Must be one of 1633 * {@link TextView#AUTO_SIZE_TEXT_TYPE_NONE} or 1634 * {@link TextView#AUTO_SIZE_TEXT_TYPE_UNIFORM} 1635 * 1636 * @throws IllegalArgumentException if <code>autoSizeTextType</code> is none of the types above. 1637 * 1638 * @attr ref android.R.styleable#TextView_autoSizeTextType 1639 * 1640 * @see #getAutoSizeTextType() 1641 */ 1642 public void setAutoSizeTextTypeWithDefaults(@AutoSizeTextType int autoSizeTextType) { 1643 if (supportsAutoSizeText()) { 1644 switch (autoSizeTextType) { 1645 case AUTO_SIZE_TEXT_TYPE_NONE: 1646 clearAutoSizeConfiguration(); 1647 break; 1648 case AUTO_SIZE_TEXT_TYPE_UNIFORM: 1649 final DisplayMetrics displayMetrics = getResources().getDisplayMetrics(); 1650 final float autoSizeMinTextSizeInPx = TypedValue.applyDimension( 1651 TypedValue.COMPLEX_UNIT_SP, 1652 DEFAULT_AUTO_SIZE_MIN_TEXT_SIZE_IN_SP, 1653 displayMetrics); 1654 final float autoSizeMaxTextSizeInPx = TypedValue.applyDimension( 1655 TypedValue.COMPLEX_UNIT_SP, 1656 DEFAULT_AUTO_SIZE_MAX_TEXT_SIZE_IN_SP, 1657 displayMetrics); 1658 1659 validateAndSetAutoSizeTextTypeUniformConfiguration( 1660 autoSizeMinTextSizeInPx, 1661 autoSizeMaxTextSizeInPx, 1662 DEFAULT_AUTO_SIZE_GRANULARITY_IN_PX); 1663 if (setupAutoSizeText()) { 1664 autoSizeText(); 1665 invalidate(); 1666 } 1667 break; 1668 default: 1669 throw new IllegalArgumentException( 1670 "Unknown auto-size text type: " + autoSizeTextType); 1671 } 1672 } 1673 } 1674 1675 /** 1676 * Specify whether this widget should automatically scale the text to try to perfectly fit 1677 * within the layout bounds. If all the configuration params are valid the type of auto-size is 1678 * set to {@link #AUTO_SIZE_TEXT_TYPE_UNIFORM}. 1679 * 1680 * @param autoSizeMinTextSize the minimum text size available for auto-size 1681 * @param autoSizeMaxTextSize the maximum text size available for auto-size 1682 * @param autoSizeStepGranularity the auto-size step granularity. It is used in conjunction with 1683 * the minimum and maximum text size in order to build the set of 1684 * text sizes the system uses to choose from when auto-sizing 1685 * @param unit the desired dimension unit for all sizes above. See {@link TypedValue} for the 1686 * possible dimension units 1687 * 1688 * @throws IllegalArgumentException if any of the configuration params are invalid. 1689 * 1690 * @attr ref android.R.styleable#TextView_autoSizeTextType 1691 * @attr ref android.R.styleable#TextView_autoSizeMinTextSize 1692 * @attr ref android.R.styleable#TextView_autoSizeMaxTextSize 1693 * @attr ref android.R.styleable#TextView_autoSizeStepGranularity 1694 * 1695 * @see #setAutoSizeTextTypeWithDefaults(int) 1696 * @see #setAutoSizeTextTypeUniformWithPresetSizes(int[], int) 1697 * @see #getAutoSizeMinTextSize() 1698 * @see #getAutoSizeMaxTextSize() 1699 * @see #getAutoSizeStepGranularity() 1700 * @see #getAutoSizeTextAvailableSizes() 1701 */ 1702 public void setAutoSizeTextTypeUniformWithConfiguration(int autoSizeMinTextSize, 1703 int autoSizeMaxTextSize, int autoSizeStepGranularity, int unit) { 1704 if (supportsAutoSizeText()) { 1705 final DisplayMetrics displayMetrics = getResources().getDisplayMetrics(); 1706 final float autoSizeMinTextSizeInPx = TypedValue.applyDimension( 1707 unit, autoSizeMinTextSize, displayMetrics); 1708 final float autoSizeMaxTextSizeInPx = TypedValue.applyDimension( 1709 unit, autoSizeMaxTextSize, displayMetrics); 1710 final float autoSizeStepGranularityInPx = TypedValue.applyDimension( 1711 unit, autoSizeStepGranularity, displayMetrics); 1712 1713 validateAndSetAutoSizeTextTypeUniformConfiguration(autoSizeMinTextSizeInPx, 1714 autoSizeMaxTextSizeInPx, 1715 autoSizeStepGranularityInPx); 1716 1717 if (setupAutoSizeText()) { 1718 autoSizeText(); 1719 invalidate(); 1720 } 1721 } 1722 } 1723 1724 /** 1725 * Specify whether this widget should automatically scale the text to try to perfectly fit 1726 * within the layout bounds. If at least one value from the <code>presetSizes</code> is valid 1727 * then the type of auto-size is set to {@link #AUTO_SIZE_TEXT_TYPE_UNIFORM}. 1728 * 1729 * @param presetSizes an {@code int} array of sizes in pixels 1730 * @param unit the desired dimension unit for the preset sizes above. See {@link TypedValue} for 1731 * the possible dimension units 1732 * 1733 * @throws IllegalArgumentException if all of the <code>presetSizes</code> are invalid. 1734 * 1735 * @attr ref android.R.styleable#TextView_autoSizeTextType 1736 * @attr ref android.R.styleable#TextView_autoSizePresetSizes 1737 * 1738 * @see #setAutoSizeTextTypeWithDefaults(int) 1739 * @see #setAutoSizeTextTypeUniformWithConfiguration(int, int, int, int) 1740 * @see #getAutoSizeMinTextSize() 1741 * @see #getAutoSizeMaxTextSize() 1742 * @see #getAutoSizeTextAvailableSizes() 1743 */ 1744 public void setAutoSizeTextTypeUniformWithPresetSizes(@NonNull int[] presetSizes, int unit) { 1745 if (supportsAutoSizeText()) { 1746 final int presetSizesLength = presetSizes.length; 1747 if (presetSizesLength > 0) { 1748 int[] presetSizesInPx = new int[presetSizesLength]; 1749 1750 if (unit == TypedValue.COMPLEX_UNIT_PX) { 1751 presetSizesInPx = Arrays.copyOf(presetSizes, presetSizesLength); 1752 } else { 1753 final DisplayMetrics displayMetrics = getResources().getDisplayMetrics(); 1754 // Convert all to sizes to pixels. 1755 for (int i = 0; i < presetSizesLength; i++) { 1756 presetSizesInPx[i] = Math.round(TypedValue.applyDimension(unit, 1757 presetSizes[i], displayMetrics)); 1758 } 1759 } 1760 1761 mAutoSizeTextSizesInPx = cleanupAutoSizePresetSizes(presetSizesInPx); 1762 if (!setupAutoSizeUniformPresetSizesConfiguration()) { 1763 throw new IllegalArgumentException("None of the preset sizes is valid: " 1764 + Arrays.toString(presetSizes)); 1765 } 1766 } else { 1767 mHasPresetAutoSizeValues = false; 1768 } 1769 1770 if (setupAutoSizeText()) { 1771 autoSizeText(); 1772 invalidate(); 1773 } 1774 } 1775 } 1776 1777 /** 1778 * Returns the type of auto-size set for this widget. 1779 * 1780 * @return an {@code int} corresponding to one of the auto-size types: 1781 * {@link TextView#AUTO_SIZE_TEXT_TYPE_NONE} or 1782 * {@link TextView#AUTO_SIZE_TEXT_TYPE_UNIFORM} 1783 * 1784 * @attr ref android.R.styleable#TextView_autoSizeTextType 1785 * 1786 * @see #setAutoSizeTextTypeWithDefaults(int) 1787 * @see #setAutoSizeTextTypeUniformWithConfiguration(int, int, int, int) 1788 * @see #setAutoSizeTextTypeUniformWithPresetSizes(int[], int) 1789 */ 1790 @AutoSizeTextType 1791 public int getAutoSizeTextType() { 1792 return mAutoSizeTextType; 1793 } 1794 1795 /** 1796 * @return the current auto-size step granularity in pixels. 1797 * 1798 * @attr ref android.R.styleable#TextView_autoSizeStepGranularity 1799 * 1800 * @see #setAutoSizeTextTypeUniformWithConfiguration(int, int, int, int) 1801 */ 1802 public int getAutoSizeStepGranularity() { 1803 return Math.round(mAutoSizeStepGranularityInPx); 1804 } 1805 1806 /** 1807 * @return the current auto-size minimum text size in pixels (the default is 12sp). Note that 1808 * if auto-size has not been configured this function returns {@code -1}. 1809 * 1810 * @attr ref android.R.styleable#TextView_autoSizeMinTextSize 1811 * 1812 * @see #setAutoSizeTextTypeUniformWithConfiguration(int, int, int, int) 1813 * @see #setAutoSizeTextTypeUniformWithPresetSizes(int[], int) 1814 */ 1815 public int getAutoSizeMinTextSize() { 1816 return Math.round(mAutoSizeMinTextSizeInPx); 1817 } 1818 1819 /** 1820 * @return the current auto-size maximum text size in pixels (the default is 112sp). Note that 1821 * if auto-size has not been configured this function returns {@code -1}. 1822 * 1823 * @attr ref android.R.styleable#TextView_autoSizeMaxTextSize 1824 * 1825 * @see #setAutoSizeTextTypeUniformWithConfiguration(int, int, int, int) 1826 * @see #setAutoSizeTextTypeUniformWithPresetSizes(int[], int) 1827 */ 1828 public int getAutoSizeMaxTextSize() { 1829 return Math.round(mAutoSizeMaxTextSizeInPx); 1830 } 1831 1832 /** 1833 * @return the current auto-size {@code int} sizes array (in pixels). 1834 * 1835 * @see #setAutoSizeTextTypeUniformWithConfiguration(int, int, int, int) 1836 * @see #setAutoSizeTextTypeUniformWithPresetSizes(int[], int) 1837 */ 1838 public int[] getAutoSizeTextAvailableSizes() { 1839 return mAutoSizeTextSizesInPx; 1840 } 1841 1842 private void setupAutoSizeUniformPresetSizes(TypedArray textSizes) { 1843 final int textSizesLength = textSizes.length(); 1844 final int[] parsedSizes = new int[textSizesLength]; 1845 1846 if (textSizesLength > 0) { 1847 for (int i = 0; i < textSizesLength; i++) { 1848 parsedSizes[i] = textSizes.getDimensionPixelSize(i, -1); 1849 } 1850 mAutoSizeTextSizesInPx = cleanupAutoSizePresetSizes(parsedSizes); 1851 setupAutoSizeUniformPresetSizesConfiguration(); 1852 } 1853 } 1854 1855 private boolean setupAutoSizeUniformPresetSizesConfiguration() { 1856 final int sizesLength = mAutoSizeTextSizesInPx.length; 1857 mHasPresetAutoSizeValues = sizesLength > 0; 1858 if (mHasPresetAutoSizeValues) { 1859 mAutoSizeTextType = AUTO_SIZE_TEXT_TYPE_UNIFORM; 1860 mAutoSizeMinTextSizeInPx = mAutoSizeTextSizesInPx[0]; 1861 mAutoSizeMaxTextSizeInPx = mAutoSizeTextSizesInPx[sizesLength - 1]; 1862 mAutoSizeStepGranularityInPx = UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE; 1863 } 1864 return mHasPresetAutoSizeValues; 1865 } 1866 1867 /** 1868 * If all params are valid then save the auto-size configuration. 1869 * 1870 * @throws IllegalArgumentException if any of the params are invalid 1871 */ 1872 private void validateAndSetAutoSizeTextTypeUniformConfiguration(float autoSizeMinTextSizeInPx, 1873 float autoSizeMaxTextSizeInPx, float autoSizeStepGranularityInPx) { 1874 // First validate. 1875 if (autoSizeMinTextSizeInPx <= 0) { 1876 throw new IllegalArgumentException("Minimum auto-size text size (" 1877 + autoSizeMinTextSizeInPx + "px) is less or equal to (0px)"); 1878 } 1879 1880 if (autoSizeMaxTextSizeInPx <= autoSizeMinTextSizeInPx) { 1881 throw new IllegalArgumentException("Maximum auto-size text size (" 1882 + autoSizeMaxTextSizeInPx + "px) is less or equal to minimum auto-size " 1883 + "text size (" + autoSizeMinTextSizeInPx + "px)"); 1884 } 1885 1886 if (autoSizeStepGranularityInPx <= 0) { 1887 throw new IllegalArgumentException("The auto-size step granularity (" 1888 + autoSizeStepGranularityInPx + "px) is less or equal to (0px)"); 1889 } 1890 1891 // All good, persist the configuration. 1892 mAutoSizeTextType = AUTO_SIZE_TEXT_TYPE_UNIFORM; 1893 mAutoSizeMinTextSizeInPx = autoSizeMinTextSizeInPx; 1894 mAutoSizeMaxTextSizeInPx = autoSizeMaxTextSizeInPx; 1895 mAutoSizeStepGranularityInPx = autoSizeStepGranularityInPx; 1896 mHasPresetAutoSizeValues = false; 1897 } 1898 1899 private void clearAutoSizeConfiguration() { 1900 mAutoSizeTextType = AUTO_SIZE_TEXT_TYPE_NONE; 1901 mAutoSizeMinTextSizeInPx = UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE; 1902 mAutoSizeMaxTextSizeInPx = UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE; 1903 mAutoSizeStepGranularityInPx = UNSET_AUTO_SIZE_UNIFORM_CONFIGURATION_VALUE; 1904 mAutoSizeTextSizesInPx = EmptyArray.INT; 1905 mNeedsAutoSizeText = false; 1906 } 1907 1908 // Returns distinct sorted positive values. 1909 private int[] cleanupAutoSizePresetSizes(int[] presetValues) { 1910 final int presetValuesLength = presetValues.length; 1911 if (presetValuesLength == 0) { 1912 return presetValues; 1913 } 1914 Arrays.sort(presetValues); 1915 1916 final IntArray uniqueValidSizes = new IntArray(); 1917 for (int i = 0; i < presetValuesLength; i++) { 1918 final int currentPresetValue = presetValues[i]; 1919 1920 if (currentPresetValue > 0 1921 && uniqueValidSizes.binarySearch(currentPresetValue) < 0) { 1922 uniqueValidSizes.add(currentPresetValue); 1923 } 1924 } 1925 1926 return presetValuesLength == uniqueValidSizes.size() 1927 ? presetValues 1928 : uniqueValidSizes.toArray(); 1929 } 1930 1931 private boolean setupAutoSizeText() { 1932 if (supportsAutoSizeText() && mAutoSizeTextType == AUTO_SIZE_TEXT_TYPE_UNIFORM) { 1933 // Calculate the sizes set based on minimum size, maximum size and step size if we do 1934 // not have a predefined set of sizes or if the current sizes array is empty. 1935 if (!mHasPresetAutoSizeValues || mAutoSizeTextSizesInPx.length == 0) { 1936 final int autoSizeValuesLength = ((int) Math.floor((mAutoSizeMaxTextSizeInPx 1937 - mAutoSizeMinTextSizeInPx) / mAutoSizeStepGranularityInPx)) + 1; 1938 final int[] autoSizeTextSizesInPx = new int[autoSizeValuesLength]; 1939 for (int i = 0; i < autoSizeValuesLength; i++) { 1940 autoSizeTextSizesInPx[i] = Math.round( 1941 mAutoSizeMinTextSizeInPx + (i * mAutoSizeStepGranularityInPx)); 1942 } 1943 mAutoSizeTextSizesInPx = cleanupAutoSizePresetSizes(autoSizeTextSizesInPx); 1944 } 1945 1946 mNeedsAutoSizeText = true; 1947 } else { 1948 mNeedsAutoSizeText = false; 1949 } 1950 1951 return mNeedsAutoSizeText; 1952 } 1953 1954 private int[] parseDimensionArray(TypedArray dimens) { 1955 if (dimens == null) { 1956 return null; 1957 } 1958 int[] result = new int[dimens.length()]; 1959 for (int i = 0; i < result.length; i++) { 1960 result[i] = dimens.getDimensionPixelSize(i, 0); 1961 } 1962 return result; 1963 } 1964 1965 /** 1966 * @hide 1967 */ 1968 @Override 1969 public void onActivityResult(int requestCode, int resultCode, Intent data) { 1970 if (requestCode == PROCESS_TEXT_REQUEST_CODE) { 1971 if (resultCode == Activity.RESULT_OK && data != null) { 1972 CharSequence result = data.getCharSequenceExtra(Intent.EXTRA_PROCESS_TEXT); 1973 if (result != null) { 1974 if (isTextEditable()) { 1975 replaceSelectionWithText(result); 1976 if (mEditor != null) { 1977 mEditor.refreshTextActionMode(); 1978 } 1979 } else { 1980 if (result.length() > 0) { 1981 Toast.makeText(getContext(), String.valueOf(result), Toast.LENGTH_LONG) 1982 .show(); 1983 } 1984 } 1985 } 1986 } else if (mSpannable != null) { 1987 // Reset the selection. 1988 Selection.setSelection(mSpannable, getSelectionEnd()); 1989 } 1990 } 1991 } 1992 1993 /** 1994 * Sets the Typeface taking into account the given attributes. 1995 * 1996 * @param typeface a typeface 1997 * @param familyName family name string, e.g. "serif" 1998 * @param typefaceIndex an index of the typeface enum, e.g. SANS, SERIF. 1999 * @param style a typeface style 2000 * @param weight a weight value for the Typeface or -1 if not specified. 2001 */ 2002 private void setTypefaceFromAttrs(@Nullable Typeface typeface, @Nullable String familyName, 2003 @XMLTypefaceAttr int typefaceIndex, @Typeface.Style int style, 2004 @IntRange(from = -1, to = Typeface.MAX_WEIGHT) int weight) { 2005 if (typeface == null && familyName != null) { 2006 // Lookup normal Typeface from system font map. 2007 final Typeface normalTypeface = Typeface.create(familyName, Typeface.NORMAL); 2008 resolveStyleAndSetTypeface(normalTypeface, style, weight); 2009 } else if (typeface != null) { 2010 resolveStyleAndSetTypeface(typeface, style, weight); 2011 } else { // both typeface and familyName is null. 2012 switch (typefaceIndex) { 2013 case SANS: 2014 resolveStyleAndSetTypeface(Typeface.SANS_SERIF, style, weight); 2015 break; 2016 case SERIF: 2017 resolveStyleAndSetTypeface(Typeface.SERIF, style, weight); 2018 break; 2019 case MONOSPACE: 2020 resolveStyleAndSetTypeface(Typeface.MONOSPACE, style, weight); 2021 break; 2022 case DEFAULT_TYPEFACE: 2023 default: 2024 resolveStyleAndSetTypeface(null, style, weight); 2025 break; 2026 } 2027 } 2028 } 2029 2030 private void resolveStyleAndSetTypeface(@NonNull Typeface typeface, @Typeface.Style int style, 2031 @IntRange(from = -1, to = Typeface.MAX_WEIGHT) int weight) { 2032 if (weight >= 0) { 2033 weight = Math.min(Typeface.MAX_WEIGHT, weight); 2034 final boolean italic = (style & Typeface.ITALIC) != 0; 2035 setTypeface(Typeface.create(typeface, weight, italic)); 2036 } else { 2037 setTypeface(typeface, style); 2038 } 2039 } 2040 2041 private void setRelativeDrawablesIfNeeded(Drawable start, Drawable end) { 2042 boolean hasRelativeDrawables = (start != null) || (end != null); 2043 if (hasRelativeDrawables) { 2044 Drawables dr = mDrawables; 2045 if (dr == null) { 2046 mDrawables = dr = new Drawables(getContext()); 2047 } 2048 mDrawables.mOverride = true; 2049 final Rect compoundRect = dr.mCompoundRect; 2050 int[] state = getDrawableState(); 2051 if (start != null) { 2052 start.setBounds(0, 0, start.getIntrinsicWidth(), start.getIntrinsicHeight()); 2053 start.setState(state); 2054 start.copyBounds(compoundRect); 2055 start.setCallback(this); 2056 2057 dr.mDrawableStart = start; 2058 dr.mDrawableSizeStart = compoundRect.width(); 2059 dr.mDrawableHeightStart = compoundRect.height(); 2060 } else { 2061 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 2062 } 2063 if (end != null) { 2064 end.setBounds(0, 0, end.getIntrinsicWidth(), end.getIntrinsicHeight()); 2065 end.setState(state); 2066 end.copyBounds(compoundRect); 2067 end.setCallback(this); 2068 2069 dr.mDrawableEnd = end; 2070 dr.mDrawableSizeEnd = compoundRect.width(); 2071 dr.mDrawableHeightEnd = compoundRect.height(); 2072 } else { 2073 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 2074 } 2075 resetResolvedDrawables(); 2076 resolveDrawables(); 2077 applyCompoundDrawableTint(); 2078 } 2079 } 2080 2081 @android.view.RemotableViewMethod 2082 @Override 2083 public void setEnabled(boolean enabled) { 2084 if (enabled == isEnabled()) { 2085 return; 2086 } 2087 2088 if (!enabled) { 2089 // Hide the soft input if the currently active TextView is disabled 2090 InputMethodManager imm = InputMethodManager.peekInstance(); 2091 if (imm != null && imm.isActive(this)) { 2092 imm.hideSoftInputFromWindow(getWindowToken(), 0); 2093 } 2094 } 2095 2096 super.setEnabled(enabled); 2097 2098 if (enabled) { 2099 // Make sure IME is updated with current editor info. 2100 InputMethodManager imm = InputMethodManager.peekInstance(); 2101 if (imm != null) imm.restartInput(this); 2102 } 2103 2104 // Will change text color 2105 if (mEditor != null) { 2106 mEditor.invalidateTextDisplayList(); 2107 mEditor.prepareCursorControllers(); 2108 2109 // start or stop the cursor blinking as appropriate 2110 mEditor.makeBlink(); 2111 } 2112 } 2113 2114 /** 2115 * Sets the typeface and style in which the text should be displayed, 2116 * and turns on the fake bold and italic bits in the Paint if the 2117 * Typeface that you provided does not have all the bits in the 2118 * style that you specified. 2119 * 2120 * @attr ref android.R.styleable#TextView_typeface 2121 * @attr ref android.R.styleable#TextView_textStyle 2122 */ 2123 public void setTypeface(@Nullable Typeface tf, @Typeface.Style int style) { 2124 if (style > 0) { 2125 if (tf == null) { 2126 tf = Typeface.defaultFromStyle(style); 2127 } else { 2128 tf = Typeface.create(tf, style); 2129 } 2130 2131 setTypeface(tf); 2132 // now compute what (if any) algorithmic styling is needed 2133 int typefaceStyle = tf != null ? tf.getStyle() : 0; 2134 int need = style & ~typefaceStyle; 2135 mTextPaint.setFakeBoldText((need & Typeface.BOLD) != 0); 2136 mTextPaint.setTextSkewX((need & Typeface.ITALIC) != 0 ? -0.25f : 0); 2137 } else { 2138 mTextPaint.setFakeBoldText(false); 2139 mTextPaint.setTextSkewX(0); 2140 setTypeface(tf); 2141 } 2142 } 2143 2144 /** 2145 * Subclasses override this to specify that they have a KeyListener 2146 * by default even if not specifically called for in the XML options. 2147 */ 2148 protected boolean getDefaultEditable() { 2149 return false; 2150 } 2151 2152 /** 2153 * Subclasses override this to specify a default movement method. 2154 */ 2155 protected MovementMethod getDefaultMovementMethod() { 2156 return null; 2157 } 2158 2159 /** 2160 * Return the text that TextView is displaying. If {@link #setText(CharSequence)} was called 2161 * with an argument of {@link android.widget.TextView.BufferType#SPANNABLE BufferType.SPANNABLE} 2162 * or {@link android.widget.TextView.BufferType#EDITABLE BufferType.EDITABLE}, you can cast 2163 * the return value from this method to Spannable or Editable, respectively. 2164 * 2165 * <p>The content of the return value should not be modified. If you want a modifiable one, you 2166 * should make your own copy first.</p> 2167 * 2168 * @return The text displayed by the text view. 2169 * @attr ref android.R.styleable#TextView_text 2170 */ 2171 @ViewDebug.CapturedViewProperty 2172 public CharSequence getText() { 2173 return mText; 2174 } 2175 2176 /** 2177 * Returns the length, in characters, of the text managed by this TextView 2178 * @return The length of the text managed by the TextView in characters. 2179 */ 2180 public int length() { 2181 return mText.length(); 2182 } 2183 2184 /** 2185 * Return the text that TextView is displaying as an Editable object. If the text is not 2186 * editable, null is returned. 2187 * 2188 * @see #getText 2189 */ 2190 public Editable getEditableText() { 2191 return (mText instanceof Editable) ? (Editable) mText : null; 2192 } 2193 2194 /** 2195 * Gets the vertical distance between lines of text, in pixels. 2196 * Note that markup within the text can cause individual lines 2197 * to be taller or shorter than this height, and the layout may 2198 * contain additional first-or last-line padding. 2199 * @return The height of one standard line in pixels. 2200 */ 2201 public int getLineHeight() { 2202 return FastMath.round(mTextPaint.getFontMetricsInt(null) * mSpacingMult + mSpacingAdd); 2203 } 2204 2205 /** 2206 * Gets the {@link android.text.Layout} that is currently being used to display the text. 2207 * This value can be null if the text or width has recently changed. 2208 * @return The Layout that is currently being used to display the text. 2209 */ 2210 public final Layout getLayout() { 2211 return mLayout; 2212 } 2213 2214 /** 2215 * @return the {@link android.text.Layout} that is currently being used to 2216 * display the hint text. This can be null. 2217 */ 2218 final Layout getHintLayout() { 2219 return mHintLayout; 2220 } 2221 2222 /** 2223 * Retrieve the {@link android.content.UndoManager} that is currently associated 2224 * with this TextView. By default there is no associated UndoManager, so null 2225 * is returned. One can be associated with the TextView through 2226 * {@link #setUndoManager(android.content.UndoManager, String)} 2227 * 2228 * @hide 2229 */ 2230 public final UndoManager getUndoManager() { 2231 // TODO: Consider supporting a global undo manager. 2232 throw new UnsupportedOperationException("not implemented"); 2233 } 2234 2235 2236 /** 2237 * @hide 2238 */ 2239 @VisibleForTesting 2240 public final Editor getEditorForTesting() { 2241 return mEditor; 2242 } 2243 2244 /** 2245 * Associate an {@link android.content.UndoManager} with this TextView. Once 2246 * done, all edit operations on the TextView will result in appropriate 2247 * {@link android.content.UndoOperation} objects pushed on the given UndoManager's 2248 * stack. 2249 * 2250 * @param undoManager The {@link android.content.UndoManager} to associate with 2251 * this TextView, or null to clear any existing association. 2252 * @param tag String tag identifying this particular TextView owner in the 2253 * UndoManager. This is used to keep the correct association with the 2254 * {@link android.content.UndoOwner} of any operations inside of the UndoManager. 2255 * 2256 * @hide 2257 */ 2258 public final void setUndoManager(UndoManager undoManager, String tag) { 2259 // TODO: Consider supporting a global undo manager. An implementation will need to: 2260 // * createEditorIfNeeded() 2261 // * Promote to BufferType.EDITABLE if needed. 2262 // * Update the UndoManager and UndoOwner. 2263 // Likewise it will need to be able to restore the default UndoManager. 2264 throw new UnsupportedOperationException("not implemented"); 2265 } 2266 2267 /** 2268 * Gets the current {@link KeyListener} for the TextView. 2269 * This will frequently be null for non-EditText TextViews. 2270 * @return the current key listener for this TextView. 2271 * 2272 * @attr ref android.R.styleable#TextView_numeric 2273 * @attr ref android.R.styleable#TextView_digits 2274 * @attr ref android.R.styleable#TextView_phoneNumber 2275 * @attr ref android.R.styleable#TextView_inputMethod 2276 * @attr ref android.R.styleable#TextView_capitalize 2277 * @attr ref android.R.styleable#TextView_autoText 2278 */ 2279 public final KeyListener getKeyListener() { 2280 return mEditor == null ? null : mEditor.mKeyListener; 2281 } 2282 2283 /** 2284 * Sets the key listener to be used with this TextView. This can be null 2285 * to disallow user input. Note that this method has significant and 2286 * subtle interactions with soft keyboards and other input method: 2287 * see {@link KeyListener#getInputType() KeyListener.getInputType()} 2288 * for important details. Calling this method will replace the current 2289 * content type of the text view with the content type returned by the 2290 * key listener. 2291 * <p> 2292 * Be warned that if you want a TextView with a key listener or movement 2293 * method not to be focusable, or if you want a TextView without a 2294 * key listener or movement method to be focusable, you must call 2295 * {@link #setFocusable} again after calling this to get the focusability 2296 * back the way you want it. 2297 * 2298 * @attr ref android.R.styleable#TextView_numeric 2299 * @attr ref android.R.styleable#TextView_digits 2300 * @attr ref android.R.styleable#TextView_phoneNumber 2301 * @attr ref android.R.styleable#TextView_inputMethod 2302 * @attr ref android.R.styleable#TextView_capitalize 2303 * @attr ref android.R.styleable#TextView_autoText 2304 */ 2305 public void setKeyListener(KeyListener input) { 2306 mListenerChanged = true; 2307 setKeyListenerOnly(input); 2308 fixFocusableAndClickableSettings(); 2309 2310 if (input != null) { 2311 createEditorIfNeeded(); 2312 setInputTypeFromEditor(); 2313 } else { 2314 if (mEditor != null) mEditor.mInputType = EditorInfo.TYPE_NULL; 2315 } 2316 2317 InputMethodManager imm = InputMethodManager.peekInstance(); 2318 if (imm != null) imm.restartInput(this); 2319 } 2320 2321 private void setInputTypeFromEditor() { 2322 try { 2323 mEditor.mInputType = mEditor.mKeyListener.getInputType(); 2324 } catch (IncompatibleClassChangeError e) { 2325 mEditor.mInputType = EditorInfo.TYPE_CLASS_TEXT; 2326 } 2327 // Change inputType, without affecting transformation. 2328 // No need to applySingleLine since mSingleLine is unchanged. 2329 setInputTypeSingleLine(mSingleLine); 2330 } 2331 2332 private void setKeyListenerOnly(KeyListener input) { 2333 if (mEditor == null && input == null) return; // null is the default value 2334 2335 createEditorIfNeeded(); 2336 if (mEditor.mKeyListener != input) { 2337 mEditor.mKeyListener = input; 2338 if (input != null && !(mText instanceof Editable)) { 2339 setText(mText); 2340 } 2341 2342 setFilters((Editable) mText, mFilters); 2343 } 2344 } 2345 2346 /** 2347 * Gets the {@link android.text.method.MovementMethod} being used for this TextView, 2348 * which provides positioning, scrolling, and text selection functionality. 2349 * This will frequently be null for non-EditText TextViews. 2350 * @return the movement method being used for this TextView. 2351 * @see android.text.method.MovementMethod 2352 */ 2353 public final MovementMethod getMovementMethod() { 2354 return mMovement; 2355 } 2356 2357 /** 2358 * Sets the {@link android.text.method.MovementMethod} for handling arrow key movement 2359 * for this TextView. This can be null to disallow using the arrow keys to move the 2360 * cursor or scroll the view. 2361 * <p> 2362 * Be warned that if you want a TextView with a key listener or movement 2363 * method not to be focusable, or if you want a TextView without a 2364 * key listener or movement method to be focusable, you must call 2365 * {@link #setFocusable} again after calling this to get the focusability 2366 * back the way you want it. 2367 */ 2368 public final void setMovementMethod(MovementMethod movement) { 2369 if (mMovement != movement) { 2370 mMovement = movement; 2371 2372 if (movement != null && mSpannable == null) { 2373 setText(mText); 2374 } 2375 2376 fixFocusableAndClickableSettings(); 2377 2378 // SelectionModifierCursorController depends on textCanBeSelected, which depends on 2379 // mMovement 2380 if (mEditor != null) mEditor.prepareCursorControllers(); 2381 } 2382 } 2383 2384 private void fixFocusableAndClickableSettings() { 2385 if (mMovement != null || (mEditor != null && mEditor.mKeyListener != null)) { 2386 setFocusable(FOCUSABLE); 2387 setClickable(true); 2388 setLongClickable(true); 2389 } else { 2390 setFocusable(FOCUSABLE_AUTO); 2391 setClickable(false); 2392 setLongClickable(false); 2393 } 2394 } 2395 2396 /** 2397 * Gets the current {@link android.text.method.TransformationMethod} for the TextView. 2398 * This is frequently null, except for single-line and password fields. 2399 * @return the current transformation method for this TextView. 2400 * 2401 * @attr ref android.R.styleable#TextView_password 2402 * @attr ref android.R.styleable#TextView_singleLine 2403 */ 2404 public final TransformationMethod getTransformationMethod() { 2405 return mTransformation; 2406 } 2407 2408 /** 2409 * Sets the transformation that is applied to the text that this 2410 * TextView is displaying. 2411 * 2412 * @attr ref android.R.styleable#TextView_password 2413 * @attr ref android.R.styleable#TextView_singleLine 2414 */ 2415 public final void setTransformationMethod(TransformationMethod method) { 2416 if (method == mTransformation) { 2417 // Avoid the setText() below if the transformation is 2418 // the same. 2419 return; 2420 } 2421 if (mTransformation != null) { 2422 if (mSpannable != null) { 2423 mSpannable.removeSpan(mTransformation); 2424 } 2425 } 2426 2427 mTransformation = method; 2428 2429 if (method instanceof TransformationMethod2) { 2430 TransformationMethod2 method2 = (TransformationMethod2) method; 2431 mAllowTransformationLengthChange = !isTextSelectable() && !(mText instanceof Editable); 2432 method2.setLengthChangesAllowed(mAllowTransformationLengthChange); 2433 } else { 2434 mAllowTransformationLengthChange = false; 2435 } 2436 2437 setText(mText); 2438 2439 if (hasPasswordTransformationMethod()) { 2440 notifyViewAccessibilityStateChangedIfNeeded( 2441 AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED); 2442 } 2443 2444 // PasswordTransformationMethod always have LTR text direction heuristics returned by 2445 // getTextDirectionHeuristic, needs reset 2446 mTextDir = getTextDirectionHeuristic(); 2447 } 2448 2449 /** 2450 * Returns the top padding of the view, plus space for the top 2451 * Drawable if any. 2452 */ 2453 public int getCompoundPaddingTop() { 2454 final Drawables dr = mDrawables; 2455 if (dr == null || dr.mShowing[Drawables.TOP] == null) { 2456 return mPaddingTop; 2457 } else { 2458 return mPaddingTop + dr.mDrawablePadding + dr.mDrawableSizeTop; 2459 } 2460 } 2461 2462 /** 2463 * Returns the bottom padding of the view, plus space for the bottom 2464 * Drawable if any. 2465 */ 2466 public int getCompoundPaddingBottom() { 2467 final Drawables dr = mDrawables; 2468 if (dr == null || dr.mShowing[Drawables.BOTTOM] == null) { 2469 return mPaddingBottom; 2470 } else { 2471 return mPaddingBottom + dr.mDrawablePadding + dr.mDrawableSizeBottom; 2472 } 2473 } 2474 2475 /** 2476 * Returns the left padding of the view, plus space for the left 2477 * Drawable if any. 2478 */ 2479 public int getCompoundPaddingLeft() { 2480 final Drawables dr = mDrawables; 2481 if (dr == null || dr.mShowing[Drawables.LEFT] == null) { 2482 return mPaddingLeft; 2483 } else { 2484 return mPaddingLeft + dr.mDrawablePadding + dr.mDrawableSizeLeft; 2485 } 2486 } 2487 2488 /** 2489 * Returns the right padding of the view, plus space for the right 2490 * Drawable if any. 2491 */ 2492 public int getCompoundPaddingRight() { 2493 final Drawables dr = mDrawables; 2494 if (dr == null || dr.mShowing[Drawables.RIGHT] == null) { 2495 return mPaddingRight; 2496 } else { 2497 return mPaddingRight + dr.mDrawablePadding + dr.mDrawableSizeRight; 2498 } 2499 } 2500 2501 /** 2502 * Returns the start padding of the view, plus space for the start 2503 * Drawable if any. 2504 */ 2505 public int getCompoundPaddingStart() { 2506 resolveDrawables(); 2507 switch(getLayoutDirection()) { 2508 default: 2509 case LAYOUT_DIRECTION_LTR: 2510 return getCompoundPaddingLeft(); 2511 case LAYOUT_DIRECTION_RTL: 2512 return getCompoundPaddingRight(); 2513 } 2514 } 2515 2516 /** 2517 * Returns the end padding of the view, plus space for the end 2518 * Drawable if any. 2519 */ 2520 public int getCompoundPaddingEnd() { 2521 resolveDrawables(); 2522 switch(getLayoutDirection()) { 2523 default: 2524 case LAYOUT_DIRECTION_LTR: 2525 return getCompoundPaddingRight(); 2526 case LAYOUT_DIRECTION_RTL: 2527 return getCompoundPaddingLeft(); 2528 } 2529 } 2530 2531 /** 2532 * Returns the extended top padding of the view, including both the 2533 * top Drawable if any and any extra space to keep more than maxLines 2534 * of text from showing. It is only valid to call this after measuring. 2535 */ 2536 public int getExtendedPaddingTop() { 2537 if (mMaxMode != LINES) { 2538 return getCompoundPaddingTop(); 2539 } 2540 2541 if (mLayout == null) { 2542 assumeLayout(); 2543 } 2544 2545 if (mLayout.getLineCount() <= mMaximum) { 2546 return getCompoundPaddingTop(); 2547 } 2548 2549 int top = getCompoundPaddingTop(); 2550 int bottom = getCompoundPaddingBottom(); 2551 int viewht = getHeight() - top - bottom; 2552 int layoutht = mLayout.getLineTop(mMaximum); 2553 2554 if (layoutht >= viewht) { 2555 return top; 2556 } 2557 2558 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 2559 if (gravity == Gravity.TOP) { 2560 return top; 2561 } else if (gravity == Gravity.BOTTOM) { 2562 return top + viewht - layoutht; 2563 } else { // (gravity == Gravity.CENTER_VERTICAL) 2564 return top + (viewht - layoutht) / 2; 2565 } 2566 } 2567 2568 /** 2569 * Returns the extended bottom padding of the view, including both the 2570 * bottom Drawable if any and any extra space to keep more than maxLines 2571 * of text from showing. It is only valid to call this after measuring. 2572 */ 2573 public int getExtendedPaddingBottom() { 2574 if (mMaxMode != LINES) { 2575 return getCompoundPaddingBottom(); 2576 } 2577 2578 if (mLayout == null) { 2579 assumeLayout(); 2580 } 2581 2582 if (mLayout.getLineCount() <= mMaximum) { 2583 return getCompoundPaddingBottom(); 2584 } 2585 2586 int top = getCompoundPaddingTop(); 2587 int bottom = getCompoundPaddingBottom(); 2588 int viewht = getHeight() - top - bottom; 2589 int layoutht = mLayout.getLineTop(mMaximum); 2590 2591 if (layoutht >= viewht) { 2592 return bottom; 2593 } 2594 2595 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 2596 if (gravity == Gravity.TOP) { 2597 return bottom + viewht - layoutht; 2598 } else if (gravity == Gravity.BOTTOM) { 2599 return bottom; 2600 } else { // (gravity == Gravity.CENTER_VERTICAL) 2601 return bottom + (viewht - layoutht) / 2; 2602 } 2603 } 2604 2605 /** 2606 * Returns the total left padding of the view, including the left 2607 * Drawable if any. 2608 */ 2609 public int getTotalPaddingLeft() { 2610 return getCompoundPaddingLeft(); 2611 } 2612 2613 /** 2614 * Returns the total right padding of the view, including the right 2615 * Drawable if any. 2616 */ 2617 public int getTotalPaddingRight() { 2618 return getCompoundPaddingRight(); 2619 } 2620 2621 /** 2622 * Returns the total start padding of the view, including the start 2623 * Drawable if any. 2624 */ 2625 public int getTotalPaddingStart() { 2626 return getCompoundPaddingStart(); 2627 } 2628 2629 /** 2630 * Returns the total end padding of the view, including the end 2631 * Drawable if any. 2632 */ 2633 public int getTotalPaddingEnd() { 2634 return getCompoundPaddingEnd(); 2635 } 2636 2637 /** 2638 * Returns the total top padding of the view, including the top 2639 * Drawable if any, the extra space to keep more than maxLines 2640 * from showing, and the vertical offset for gravity, if any. 2641 */ 2642 public int getTotalPaddingTop() { 2643 return getExtendedPaddingTop() + getVerticalOffset(true); 2644 } 2645 2646 /** 2647 * Returns the total bottom padding of the view, including the bottom 2648 * Drawable if any, the extra space to keep more than maxLines 2649 * from showing, and the vertical offset for gravity, if any. 2650 */ 2651 public int getTotalPaddingBottom() { 2652 return getExtendedPaddingBottom() + getBottomVerticalOffset(true); 2653 } 2654 2655 /** 2656 * Sets the Drawables (if any) to appear to the left of, above, to the 2657 * right of, and below the text. Use {@code null} if you do not want a 2658 * Drawable there. The Drawables must already have had 2659 * {@link Drawable#setBounds} called. 2660 * <p> 2661 * Calling this method will overwrite any Drawables previously set using 2662 * {@link #setCompoundDrawablesRelative} or related methods. 2663 * 2664 * @attr ref android.R.styleable#TextView_drawableLeft 2665 * @attr ref android.R.styleable#TextView_drawableTop 2666 * @attr ref android.R.styleable#TextView_drawableRight 2667 * @attr ref android.R.styleable#TextView_drawableBottom 2668 */ 2669 public void setCompoundDrawables(@Nullable Drawable left, @Nullable Drawable top, 2670 @Nullable Drawable right, @Nullable Drawable bottom) { 2671 Drawables dr = mDrawables; 2672 2673 // We're switching to absolute, discard relative. 2674 if (dr != null) { 2675 if (dr.mDrawableStart != null) dr.mDrawableStart.setCallback(null); 2676 dr.mDrawableStart = null; 2677 if (dr.mDrawableEnd != null) dr.mDrawableEnd.setCallback(null); 2678 dr.mDrawableEnd = null; 2679 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 2680 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 2681 } 2682 2683 final boolean drawables = left != null || top != null || right != null || bottom != null; 2684 if (!drawables) { 2685 // Clearing drawables... can we free the data structure? 2686 if (dr != null) { 2687 if (!dr.hasMetadata()) { 2688 mDrawables = null; 2689 } else { 2690 // We need to retain the last set padding, so just clear 2691 // out all of the fields in the existing structure. 2692 for (int i = dr.mShowing.length - 1; i >= 0; i--) { 2693 if (dr.mShowing[i] != null) { 2694 dr.mShowing[i].setCallback(null); 2695 } 2696 dr.mShowing[i] = null; 2697 } 2698 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 2699 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 2700 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 2701 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 2702 } 2703 } 2704 } else { 2705 if (dr == null) { 2706 mDrawables = dr = new Drawables(getContext()); 2707 } 2708 2709 mDrawables.mOverride = false; 2710 2711 if (dr.mShowing[Drawables.LEFT] != left && dr.mShowing[Drawables.LEFT] != null) { 2712 dr.mShowing[Drawables.LEFT].setCallback(null); 2713 } 2714 dr.mShowing[Drawables.LEFT] = left; 2715 2716 if (dr.mShowing[Drawables.TOP] != top && dr.mShowing[Drawables.TOP] != null) { 2717 dr.mShowing[Drawables.TOP].setCallback(null); 2718 } 2719 dr.mShowing[Drawables.TOP] = top; 2720 2721 if (dr.mShowing[Drawables.RIGHT] != right && dr.mShowing[Drawables.RIGHT] != null) { 2722 dr.mShowing[Drawables.RIGHT].setCallback(null); 2723 } 2724 dr.mShowing[Drawables.RIGHT] = right; 2725 2726 if (dr.mShowing[Drawables.BOTTOM] != bottom && dr.mShowing[Drawables.BOTTOM] != null) { 2727 dr.mShowing[Drawables.BOTTOM].setCallback(null); 2728 } 2729 dr.mShowing[Drawables.BOTTOM] = bottom; 2730 2731 final Rect compoundRect = dr.mCompoundRect; 2732 int[] state; 2733 2734 state = getDrawableState(); 2735 2736 if (left != null) { 2737 left.setState(state); 2738 left.copyBounds(compoundRect); 2739 left.setCallback(this); 2740 dr.mDrawableSizeLeft = compoundRect.width(); 2741 dr.mDrawableHeightLeft = compoundRect.height(); 2742 } else { 2743 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 2744 } 2745 2746 if (right != null) { 2747 right.setState(state); 2748 right.copyBounds(compoundRect); 2749 right.setCallback(this); 2750 dr.mDrawableSizeRight = compoundRect.width(); 2751 dr.mDrawableHeightRight = compoundRect.height(); 2752 } else { 2753 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 2754 } 2755 2756 if (top != null) { 2757 top.setState(state); 2758 top.copyBounds(compoundRect); 2759 top.setCallback(this); 2760 dr.mDrawableSizeTop = compoundRect.height(); 2761 dr.mDrawableWidthTop = compoundRect.width(); 2762 } else { 2763 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 2764 } 2765 2766 if (bottom != null) { 2767 bottom.setState(state); 2768 bottom.copyBounds(compoundRect); 2769 bottom.setCallback(this); 2770 dr.mDrawableSizeBottom = compoundRect.height(); 2771 dr.mDrawableWidthBottom = compoundRect.width(); 2772 } else { 2773 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 2774 } 2775 } 2776 2777 // Save initial left/right drawables 2778 if (dr != null) { 2779 dr.mDrawableLeftInitial = left; 2780 dr.mDrawableRightInitial = right; 2781 } 2782 2783 resetResolvedDrawables(); 2784 resolveDrawables(); 2785 applyCompoundDrawableTint(); 2786 invalidate(); 2787 requestLayout(); 2788 } 2789 2790 /** 2791 * Sets the Drawables (if any) to appear to the left of, above, to the 2792 * right of, and below the text. Use 0 if you do not want a Drawable there. 2793 * The Drawables' bounds will be set to their intrinsic bounds. 2794 * <p> 2795 * Calling this method will overwrite any Drawables previously set using 2796 * {@link #setCompoundDrawablesRelative} or related methods. 2797 * 2798 * @param left Resource identifier of the left Drawable. 2799 * @param top Resource identifier of the top Drawable. 2800 * @param right Resource identifier of the right Drawable. 2801 * @param bottom Resource identifier of the bottom Drawable. 2802 * 2803 * @attr ref android.R.styleable#TextView_drawableLeft 2804 * @attr ref android.R.styleable#TextView_drawableTop 2805 * @attr ref android.R.styleable#TextView_drawableRight 2806 * @attr ref android.R.styleable#TextView_drawableBottom 2807 */ 2808 @android.view.RemotableViewMethod 2809 public void setCompoundDrawablesWithIntrinsicBounds(@DrawableRes int left, 2810 @DrawableRes int top, @DrawableRes int right, @DrawableRes int bottom) { 2811 final Context context = getContext(); 2812 setCompoundDrawablesWithIntrinsicBounds(left != 0 ? context.getDrawable(left) : null, 2813 top != 0 ? context.getDrawable(top) : null, 2814 right != 0 ? context.getDrawable(right) : null, 2815 bottom != 0 ? context.getDrawable(bottom) : null); 2816 } 2817 2818 /** 2819 * Sets the Drawables (if any) to appear to the left of, above, to the 2820 * right of, and below the text. Use {@code null} if you do not want a 2821 * Drawable there. The Drawables' bounds will be set to their intrinsic 2822 * bounds. 2823 * <p> 2824 * Calling this method will overwrite any Drawables previously set using 2825 * {@link #setCompoundDrawablesRelative} or related methods. 2826 * 2827 * @attr ref android.R.styleable#TextView_drawableLeft 2828 * @attr ref android.R.styleable#TextView_drawableTop 2829 * @attr ref android.R.styleable#TextView_drawableRight 2830 * @attr ref android.R.styleable#TextView_drawableBottom 2831 */ 2832 @android.view.RemotableViewMethod 2833 public void setCompoundDrawablesWithIntrinsicBounds(@Nullable Drawable left, 2834 @Nullable Drawable top, @Nullable Drawable right, @Nullable Drawable bottom) { 2835 2836 if (left != null) { 2837 left.setBounds(0, 0, left.getIntrinsicWidth(), left.getIntrinsicHeight()); 2838 } 2839 if (right != null) { 2840 right.setBounds(0, 0, right.getIntrinsicWidth(), right.getIntrinsicHeight()); 2841 } 2842 if (top != null) { 2843 top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight()); 2844 } 2845 if (bottom != null) { 2846 bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight()); 2847 } 2848 setCompoundDrawables(left, top, right, bottom); 2849 } 2850 2851 /** 2852 * Sets the Drawables (if any) to appear to the start of, above, to the end 2853 * of, and below the text. Use {@code null} if you do not want a Drawable 2854 * there. The Drawables must already have had {@link Drawable#setBounds} 2855 * called. 2856 * <p> 2857 * Calling this method will overwrite any Drawables previously set using 2858 * {@link #setCompoundDrawables} or related methods. 2859 * 2860 * @attr ref android.R.styleable#TextView_drawableStart 2861 * @attr ref android.R.styleable#TextView_drawableTop 2862 * @attr ref android.R.styleable#TextView_drawableEnd 2863 * @attr ref android.R.styleable#TextView_drawableBottom 2864 */ 2865 @android.view.RemotableViewMethod 2866 public void setCompoundDrawablesRelative(@Nullable Drawable start, @Nullable Drawable top, 2867 @Nullable Drawable end, @Nullable Drawable bottom) { 2868 Drawables dr = mDrawables; 2869 2870 // We're switching to relative, discard absolute. 2871 if (dr != null) { 2872 if (dr.mShowing[Drawables.LEFT] != null) { 2873 dr.mShowing[Drawables.LEFT].setCallback(null); 2874 } 2875 dr.mShowing[Drawables.LEFT] = dr.mDrawableLeftInitial = null; 2876 if (dr.mShowing[Drawables.RIGHT] != null) { 2877 dr.mShowing[Drawables.RIGHT].setCallback(null); 2878 } 2879 dr.mShowing[Drawables.RIGHT] = dr.mDrawableRightInitial = null; 2880 dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0; 2881 dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0; 2882 } 2883 2884 final boolean drawables = start != null || top != null 2885 || end != null || bottom != null; 2886 2887 if (!drawables) { 2888 // Clearing drawables... can we free the data structure? 2889 if (dr != null) { 2890 if (!dr.hasMetadata()) { 2891 mDrawables = null; 2892 } else { 2893 // We need to retain the last set padding, so just clear 2894 // out all of the fields in the existing structure. 2895 if (dr.mDrawableStart != null) dr.mDrawableStart.setCallback(null); 2896 dr.mDrawableStart = null; 2897 if (dr.mShowing[Drawables.TOP] != null) { 2898 dr.mShowing[Drawables.TOP].setCallback(null); 2899 } 2900 dr.mShowing[Drawables.TOP] = null; 2901 if (dr.mDrawableEnd != null) { 2902 dr.mDrawableEnd.setCallback(null); 2903 } 2904 dr.mDrawableEnd = null; 2905 if (dr.mShowing[Drawables.BOTTOM] != null) { 2906 dr.mShowing[Drawables.BOTTOM].setCallback(null); 2907 } 2908 dr.mShowing[Drawables.BOTTOM] = null; 2909 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 2910 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 2911 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 2912 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 2913 } 2914 } 2915 } else { 2916 if (dr == null) { 2917 mDrawables = dr = new Drawables(getContext()); 2918 } 2919 2920 mDrawables.mOverride = true; 2921 2922 if (dr.mDrawableStart != start && dr.mDrawableStart != null) { 2923 dr.mDrawableStart.setCallback(null); 2924 } 2925 dr.mDrawableStart = start; 2926 2927 if (dr.mShowing[Drawables.TOP] != top && dr.mShowing[Drawables.TOP] != null) { 2928 dr.mShowing[Drawables.TOP].setCallback(null); 2929 } 2930 dr.mShowing[Drawables.TOP] = top; 2931 2932 if (dr.mDrawableEnd != end && dr.mDrawableEnd != null) { 2933 dr.mDrawableEnd.setCallback(null); 2934 } 2935 dr.mDrawableEnd = end; 2936 2937 if (dr.mShowing[Drawables.BOTTOM] != bottom && dr.mShowing[Drawables.BOTTOM] != null) { 2938 dr.mShowing[Drawables.BOTTOM].setCallback(null); 2939 } 2940 dr.mShowing[Drawables.BOTTOM] = bottom; 2941 2942 final Rect compoundRect = dr.mCompoundRect; 2943 int[] state; 2944 2945 state = getDrawableState(); 2946 2947 if (start != null) { 2948 start.setState(state); 2949 start.copyBounds(compoundRect); 2950 start.setCallback(this); 2951 dr.mDrawableSizeStart = compoundRect.width(); 2952 dr.mDrawableHeightStart = compoundRect.height(); 2953 } else { 2954 dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0; 2955 } 2956 2957 if (end != null) { 2958 end.setState(state); 2959 end.copyBounds(compoundRect); 2960 end.setCallback(this); 2961 dr.mDrawableSizeEnd = compoundRect.width(); 2962 dr.mDrawableHeightEnd = compoundRect.height(); 2963 } else { 2964 dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0; 2965 } 2966 2967 if (top != null) { 2968 top.setState(state); 2969 top.copyBounds(compoundRect); 2970 top.setCallback(this); 2971 dr.mDrawableSizeTop = compoundRect.height(); 2972 dr.mDrawableWidthTop = compoundRect.width(); 2973 } else { 2974 dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0; 2975 } 2976 2977 if (bottom != null) { 2978 bottom.setState(state); 2979 bottom.copyBounds(compoundRect); 2980 bottom.setCallback(this); 2981 dr.mDrawableSizeBottom = compoundRect.height(); 2982 dr.mDrawableWidthBottom = compoundRect.width(); 2983 } else { 2984 dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0; 2985 } 2986 } 2987 2988 resetResolvedDrawables(); 2989 resolveDrawables(); 2990 invalidate(); 2991 requestLayout(); 2992 } 2993 2994 /** 2995 * Sets the Drawables (if any) to appear to the start of, above, to the end 2996 * of, and below the text. Use 0 if you do not want a Drawable there. The 2997 * Drawables' bounds will be set to their intrinsic bounds. 2998 * <p> 2999 * Calling this method will overwrite any Drawables previously set using 3000 * {@link #setCompoundDrawables} or related methods. 3001 * 3002 * @param start Resource identifier of the start Drawable. 3003 * @param top Resource identifier of the top Drawable. 3004 * @param end Resource identifier of the end Drawable. 3005 * @param bottom Resource identifier of the bottom Drawable. 3006 * 3007 * @attr ref android.R.styleable#TextView_drawableStart 3008 * @attr ref android.R.styleable#TextView_drawableTop 3009 * @attr ref android.R.styleable#TextView_drawableEnd 3010 * @attr ref android.R.styleable#TextView_drawableBottom 3011 */ 3012 @android.view.RemotableViewMethod 3013 public void setCompoundDrawablesRelativeWithIntrinsicBounds(@DrawableRes int start, 3014 @DrawableRes int top, @DrawableRes int end, @DrawableRes int bottom) { 3015 final Context context = getContext(); 3016 setCompoundDrawablesRelativeWithIntrinsicBounds( 3017 start != 0 ? context.getDrawable(start) : null, 3018 top != 0 ? context.getDrawable(top) : null, 3019 end != 0 ? context.getDrawable(end) : null, 3020 bottom != 0 ? context.getDrawable(bottom) : null); 3021 } 3022 3023 /** 3024 * Sets the Drawables (if any) to appear to the start of, above, to the end 3025 * of, and below the text. Use {@code null} if you do not want a Drawable 3026 * there. The Drawables' bounds will be set to their intrinsic bounds. 3027 * <p> 3028 * Calling this method will overwrite any Drawables previously set using 3029 * {@link #setCompoundDrawables} or related methods. 3030 * 3031 * @attr ref android.R.styleable#TextView_drawableStart 3032 * @attr ref android.R.styleable#TextView_drawableTop 3033 * @attr ref android.R.styleable#TextView_drawableEnd 3034 * @attr ref android.R.styleable#TextView_drawableBottom 3035 */ 3036 @android.view.RemotableViewMethod 3037 public void setCompoundDrawablesRelativeWithIntrinsicBounds(@Nullable Drawable start, 3038 @Nullable Drawable top, @Nullable Drawable end, @Nullable Drawable bottom) { 3039 3040 if (start != null) { 3041 start.setBounds(0, 0, start.getIntrinsicWidth(), start.getIntrinsicHeight()); 3042 } 3043 if (end != null) { 3044 end.setBounds(0, 0, end.getIntrinsicWidth(), end.getIntrinsicHeight()); 3045 } 3046 if (top != null) { 3047 top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight()); 3048 } 3049 if (bottom != null) { 3050 bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight()); 3051 } 3052 setCompoundDrawablesRelative(start, top, end, bottom); 3053 } 3054 3055 /** 3056 * Returns drawables for the left, top, right, and bottom borders. 3057 * 3058 * @attr ref android.R.styleable#TextView_drawableLeft 3059 * @attr ref android.R.styleable#TextView_drawableTop 3060 * @attr ref android.R.styleable#TextView_drawableRight 3061 * @attr ref android.R.styleable#TextView_drawableBottom 3062 */ 3063 @NonNull 3064 public Drawable[] getCompoundDrawables() { 3065 final Drawables dr = mDrawables; 3066 if (dr != null) { 3067 return dr.mShowing.clone(); 3068 } else { 3069 return new Drawable[] { null, null, null, null }; 3070 } 3071 } 3072 3073 /** 3074 * Returns drawables for the start, top, end, and bottom borders. 3075 * 3076 * @attr ref android.R.styleable#TextView_drawableStart 3077 * @attr ref android.R.styleable#TextView_drawableTop 3078 * @attr ref android.R.styleable#TextView_drawableEnd 3079 * @attr ref android.R.styleable#TextView_drawableBottom 3080 */ 3081 @NonNull 3082 public Drawable[] getCompoundDrawablesRelative() { 3083 final Drawables dr = mDrawables; 3084 if (dr != null) { 3085 return new Drawable[] { 3086 dr.mDrawableStart, dr.mShowing[Drawables.TOP], 3087 dr.mDrawableEnd, dr.mShowing[Drawables.BOTTOM] 3088 }; 3089 } else { 3090 return new Drawable[] { null, null, null, null }; 3091 } 3092 } 3093 3094 /** 3095 * Sets the size of the padding between the compound drawables and 3096 * the text. 3097 * 3098 * @attr ref android.R.styleable#TextView_drawablePadding 3099 */ 3100 @android.view.RemotableViewMethod 3101 public void setCompoundDrawablePadding(int pad) { 3102 Drawables dr = mDrawables; 3103 if (pad == 0) { 3104 if (dr != null) { 3105 dr.mDrawablePadding = pad; 3106 } 3107 } else { 3108 if (dr == null) { 3109 mDrawables = dr = new Drawables(getContext()); 3110 } 3111 dr.mDrawablePadding = pad; 3112 } 3113 3114 invalidate(); 3115 requestLayout(); 3116 } 3117 3118 /** 3119 * Returns the padding between the compound drawables and the text. 3120 * 3121 * @attr ref android.R.styleable#TextView_drawablePadding 3122 */ 3123 public int getCompoundDrawablePadding() { 3124 final Drawables dr = mDrawables; 3125 return dr != null ? dr.mDrawablePadding : 0; 3126 } 3127 3128 /** 3129 * Applies a tint to the compound drawables. Does not modify the 3130 * current tint mode, which is {@link PorterDuff.Mode#SRC_IN} by default. 3131 * <p> 3132 * Subsequent calls to 3133 * {@link #setCompoundDrawables(Drawable, Drawable, Drawable, Drawable)} 3134 * and related methods will automatically mutate the drawables and apply 3135 * the specified tint and tint mode using 3136 * {@link Drawable#setTintList(ColorStateList)}. 3137 * 3138 * @param tint the tint to apply, may be {@code null} to clear tint 3139 * 3140 * @attr ref android.R.styleable#TextView_drawableTint 3141 * @see #getCompoundDrawableTintList() 3142 * @see Drawable#setTintList(ColorStateList) 3143 */ 3144 public void setCompoundDrawableTintList(@Nullable ColorStateList tint) { 3145 if (mDrawables == null) { 3146 mDrawables = new Drawables(getContext()); 3147 } 3148 mDrawables.mTintList = tint; 3149 mDrawables.mHasTint = true; 3150 3151 applyCompoundDrawableTint(); 3152 } 3153 3154 /** 3155 * @return the tint applied to the compound drawables 3156 * @attr ref android.R.styleable#TextView_drawableTint 3157 * @see #setCompoundDrawableTintList(ColorStateList) 3158 */ 3159 public ColorStateList getCompoundDrawableTintList() { 3160 return mDrawables != null ? mDrawables.mTintList : null; 3161 } 3162 3163 /** 3164 * Specifies the blending mode used to apply the tint specified by 3165 * {@link #setCompoundDrawableTintList(ColorStateList)} to the compound 3166 * drawables. The default mode is {@link PorterDuff.Mode#SRC_IN}. 3167 * 3168 * @param tintMode the blending mode used to apply the tint, may be 3169 * {@code null} to clear tint 3170 * @attr ref android.R.styleable#TextView_drawableTintMode 3171 * @see #setCompoundDrawableTintList(ColorStateList) 3172 * @see Drawable#setTintMode(PorterDuff.Mode) 3173 */ 3174 public void setCompoundDrawableTintMode(@Nullable PorterDuff.Mode tintMode) { 3175 if (mDrawables == null) { 3176 mDrawables = new Drawables(getContext()); 3177 } 3178 mDrawables.mTintMode = tintMode; 3179 mDrawables.mHasTintMode = true; 3180 3181 applyCompoundDrawableTint(); 3182 } 3183 3184 /** 3185 * Returns the blending mode used to apply the tint to the compound 3186 * drawables, if specified. 3187 * 3188 * @return the blending mode used to apply the tint to the compound 3189 * drawables 3190 * @attr ref android.R.styleable#TextView_drawableTintMode 3191 * @see #setCompoundDrawableTintMode(PorterDuff.Mode) 3192 */ 3193 public PorterDuff.Mode getCompoundDrawableTintMode() { 3194 return mDrawables != null ? mDrawables.mTintMode : null; 3195 } 3196 3197 private void applyCompoundDrawableTint() { 3198 if (mDrawables == null) { 3199 return; 3200 } 3201 3202 if (mDrawables.mHasTint || mDrawables.mHasTintMode) { 3203 final ColorStateList tintList = mDrawables.mTintList; 3204 final PorterDuff.Mode tintMode = mDrawables.mTintMode; 3205 final boolean hasTint = mDrawables.mHasTint; 3206 final boolean hasTintMode = mDrawables.mHasTintMode; 3207 final int[] state = getDrawableState(); 3208 3209 for (Drawable dr : mDrawables.mShowing) { 3210 if (dr == null) { 3211 continue; 3212 } 3213 3214 if (dr == mDrawables.mDrawableError) { 3215 // From a developer's perspective, the error drawable isn't 3216 // a compound drawable. Don't apply the generic compound 3217 // drawable tint to it. 3218 continue; 3219 } 3220 3221 dr.mutate(); 3222 3223 if (hasTint) { 3224 dr.setTintList(tintList); 3225 } 3226 3227 if (hasTintMode) { 3228 dr.setTintMode(tintMode); 3229 } 3230 3231 // The drawable (or one of its children) may not have been 3232 // stateful before applying the tint, so let's try again. 3233 if (dr.isStateful()) { 3234 dr.setState(state); 3235 } 3236 } 3237 } 3238 } 3239 3240 /** 3241 * @inheritDoc 3242 * 3243 * @see #setFirstBaselineToTopHeight(int) 3244 * @see #setLastBaselineToBottomHeight(int) 3245 */ 3246 @Override 3247 public void setPadding(int left, int top, int right, int bottom) { 3248 if (left != mPaddingLeft 3249 || right != mPaddingRight 3250 || top != mPaddingTop 3251 || bottom != mPaddingBottom) { 3252 nullLayouts(); 3253 } 3254 3255 // the super call will requestLayout() 3256 super.setPadding(left, top, right, bottom); 3257 invalidate(); 3258 } 3259 3260 /** 3261 * @inheritDoc 3262 * 3263 * @see #setFirstBaselineToTopHeight(int) 3264 * @see #setLastBaselineToBottomHeight(int) 3265 */ 3266 @Override 3267 public void setPaddingRelative(int start, int top, int end, int bottom) { 3268 if (start != getPaddingStart() 3269 || end != getPaddingEnd() 3270 || top != mPaddingTop 3271 || bottom != mPaddingBottom) { 3272 nullLayouts(); 3273 } 3274 3275 // the super call will requestLayout() 3276 super.setPaddingRelative(start, top, end, bottom); 3277 invalidate(); 3278 } 3279 3280 /** 3281 * Updates the top padding of the TextView so that {@code firstBaselineToTopHeight} is 3282 * equal to the distance between the firt text baseline and the top of this TextView. 3283 * <strong>Note</strong> that if {@code FontMetrics.top} or {@code FontMetrics.ascent} was 3284 * already greater than {@code firstBaselineToTopHeight}, the top padding is not updated. 3285 * 3286 * @param firstBaselineToTopHeight distance between first baseline to top of the container 3287 * in pixels 3288 * 3289 * @see #getFirstBaselineToTopHeight() 3290 * @see #setPadding(int, int, int, int) 3291 * @see #setPaddingRelative(int, int, int, int) 3292 * 3293 * @attr ref android.R.styleable#TextView_firstBaselineToTopHeight 3294 */ 3295 public void setFirstBaselineToTopHeight(@Px @IntRange(from = 0) int firstBaselineToTopHeight) { 3296 Preconditions.checkArgumentNonnegative(firstBaselineToTopHeight); 3297 3298 final FontMetricsInt fontMetrics = getPaint().getFontMetricsInt(); 3299 final int fontMetricsTop; 3300 if (getIncludeFontPadding()) { 3301 fontMetricsTop = fontMetrics.top; 3302 } else { 3303 fontMetricsTop = fontMetrics.ascent; 3304 } 3305 3306 // TODO: Decide if we want to ignore density ratio (i.e. when the user changes font size 3307 // in settings). At the moment, we don't. 3308 3309 if (firstBaselineToTopHeight > Math.abs(fontMetricsTop)) { 3310 final int paddingTop = firstBaselineToTopHeight - (-fontMetricsTop); 3311 setPadding(getPaddingLeft(), paddingTop, getPaddingRight(), getPaddingBottom()); 3312 } 3313 } 3314 3315 /** 3316 * Updates the bottom padding of the TextView so that {@code lastBaselineToBottomHeight} is 3317 * equal to the distance between the last text baseline and the bottom of this TextView. 3318 * <strong>Note</strong> that if {@code FontMetrics.bottom} or {@code FontMetrics.descent} was 3319 * already greater than {@code lastBaselineToBottomHeight}, the bottom padding is not updated. 3320 * 3321 * @param lastBaselineToBottomHeight distance between last baseline to bottom of the container 3322 * in pixels 3323 * 3324 * @see #getLastBaselineToBottomHeight() 3325 * @see #setPadding(int, int, int, int) 3326 * @see #setPaddingRelative(int, int, int, int) 3327 * 3328 * @attr ref android.R.styleable#TextView_lastBaselineToBottomHeight 3329 */ 3330 public void setLastBaselineToBottomHeight( 3331 @Px @IntRange(from = 0) int lastBaselineToBottomHeight) { 3332 Preconditions.checkArgumentNonnegative(lastBaselineToBottomHeight); 3333 3334 final FontMetricsInt fontMetrics = getPaint().getFontMetricsInt(); 3335 final int fontMetricsBottom; 3336 if (getIncludeFontPadding()) { 3337 fontMetricsBottom = fontMetrics.bottom; 3338 } else { 3339 fontMetricsBottom = fontMetrics.descent; 3340 } 3341 3342 // TODO: Decide if we want to ignore density ratio (i.e. when the user changes font size 3343 // in settings). At the moment, we don't. 3344 3345 if (lastBaselineToBottomHeight > Math.abs(fontMetricsBottom)) { 3346 final int paddingBottom = lastBaselineToBottomHeight - fontMetricsBottom; 3347 setPadding(getPaddingLeft(), getPaddingTop(), getPaddingRight(), paddingBottom); 3348 } 3349 } 3350 3351 /** 3352 * Returns the distance between the first text baseline and the top of this TextView. 3353 * 3354 * @see #setFirstBaselineToTopHeight(int) 3355 * @attr ref android.R.styleable#TextView_firstBaselineToTopHeight 3356 */ 3357 public int getFirstBaselineToTopHeight() { 3358 return getPaddingTop() - getPaint().getFontMetricsInt().top; 3359 } 3360 3361 /** 3362 * Returns the distance between the last text baseline and the bottom of this TextView. 3363 * 3364 * @see #setLastBaselineToBottomHeight(int) 3365 * @attr ref android.R.styleable#TextView_lastBaselineToBottomHeight 3366 */ 3367 public int getLastBaselineToBottomHeight() { 3368 return getPaddingBottom() + getPaint().getFontMetricsInt().bottom; 3369 } 3370 3371 /** 3372 * Gets the autolink mask of the text. See {@link 3373 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 3374 * possible values. 3375 * 3376 * @attr ref android.R.styleable#TextView_autoLink 3377 */ 3378 public final int getAutoLinkMask() { 3379 return mAutoLinkMask; 3380 } 3381 3382 /** 3383 * Sets the text appearance from the specified style resource. 3384 * <p> 3385 * Use a framework-defined {@code TextAppearance} style like 3386 * {@link android.R.style#TextAppearance_Material_Body1 @android:style/TextAppearance.Material.Body1} 3387 * or see {@link android.R.styleable#TextAppearance TextAppearance} for the 3388 * set of attributes that can be used in a custom style. 3389 * 3390 * @param resId the resource identifier of the style to apply 3391 * @attr ref android.R.styleable#TextView_textAppearance 3392 */ 3393 @SuppressWarnings("deprecation") 3394 public void setTextAppearance(@StyleRes int resId) { 3395 setTextAppearance(mContext, resId); 3396 } 3397 3398 /** 3399 * Sets the text color, size, style, hint color, and highlight color 3400 * from the specified TextAppearance resource. 3401 * 3402 * @deprecated Use {@link #setTextAppearance(int)} instead. 3403 */ 3404 @Deprecated 3405 public void setTextAppearance(Context context, @StyleRes int resId) { 3406 final TypedArray ta = context.obtainStyledAttributes(resId, R.styleable.TextAppearance); 3407 final TextAppearanceAttributes attributes = new TextAppearanceAttributes(); 3408 readTextAppearance(context, ta, attributes, false /* styleArray */); 3409 ta.recycle(); 3410 applyTextAppearance(attributes); 3411 } 3412 3413 /** 3414 * Set of attributes that can be defined in a Text Appearance. This is used to simplify the code 3415 * that reads these attributes in the constructor and in {@link #setTextAppearance}. 3416 */ 3417 private static class TextAppearanceAttributes { 3418 int mTextColorHighlight = 0; 3419 ColorStateList mTextColor = null; 3420 ColorStateList mTextColorHint = null; 3421 ColorStateList mTextColorLink = null; 3422 int mTextSize = 0; 3423 String mFontFamily = null; 3424 Typeface mFontTypeface = null; 3425 boolean mFontFamilyExplicit = false; 3426 int mTypefaceIndex = -1; 3427 int mStyleIndex = -1; 3428 int mFontWeight = -1; 3429 boolean mAllCaps = false; 3430 int mShadowColor = 0; 3431 float mShadowDx = 0, mShadowDy = 0, mShadowRadius = 0; 3432 boolean mHasElegant = false; 3433 boolean mElegant = false; 3434 boolean mHasFallbackLineSpacing = false; 3435 boolean mFallbackLineSpacing = false; 3436 boolean mHasLetterSpacing = false; 3437 float mLetterSpacing = 0; 3438 String mFontFeatureSettings = null; 3439 3440 @Override 3441 public String toString() { 3442 return "TextAppearanceAttributes {\n" 3443 + " mTextColorHighlight:" + mTextColorHighlight + "\n" 3444 + " mTextColor:" + mTextColor + "\n" 3445 + " mTextColorHint:" + mTextColorHint + "\n" 3446 + " mTextColorLink:" + mTextColorLink + "\n" 3447 + " mTextSize:" + mTextSize + "\n" 3448 + " mFontFamily:" + mFontFamily + "\n" 3449 + " mFontTypeface:" + mFontTypeface + "\n" 3450 + " mFontFamilyExplicit:" + mFontFamilyExplicit + "\n" 3451 + " mTypefaceIndex:" + mTypefaceIndex + "\n" 3452 + " mStyleIndex:" + mStyleIndex + "\n" 3453 + " mFontWeight:" + mFontWeight + "\n" 3454 + " mAllCaps:" + mAllCaps + "\n" 3455 + " mShadowColor:" + mShadowColor + "\n" 3456 + " mShadowDx:" + mShadowDx + "\n" 3457 + " mShadowDy:" + mShadowDy + "\n" 3458 + " mShadowRadius:" + mShadowRadius + "\n" 3459 + " mHasElegant:" + mHasElegant + "\n" 3460 + " mElegant:" + mElegant + "\n" 3461 + " mHasFallbackLineSpacing:" + mHasFallbackLineSpacing + "\n" 3462 + " mFallbackLineSpacing:" + mFallbackLineSpacing + "\n" 3463 + " mHasLetterSpacing:" + mHasLetterSpacing + "\n" 3464 + " mLetterSpacing:" + mLetterSpacing + "\n" 3465 + " mFontFeatureSettings:" + mFontFeatureSettings + "\n" 3466 + "}"; 3467 } 3468 } 3469 3470 // Maps styleable attributes that exist both in TextView style and TextAppearance. 3471 private static final SparseIntArray sAppearanceValues = new SparseIntArray(); 3472 static { 3473 sAppearanceValues.put(com.android.internal.R.styleable.TextView_textColorHighlight, 3474 com.android.internal.R.styleable.TextAppearance_textColorHighlight); 3475 sAppearanceValues.put(com.android.internal.R.styleable.TextView_textColor, 3476 com.android.internal.R.styleable.TextAppearance_textColor); 3477 sAppearanceValues.put(com.android.internal.R.styleable.TextView_textColorHint, 3478 com.android.internal.R.styleable.TextAppearance_textColorHint); 3479 sAppearanceValues.put(com.android.internal.R.styleable.TextView_textColorLink, 3480 com.android.internal.R.styleable.TextAppearance_textColorLink); 3481 sAppearanceValues.put(com.android.internal.R.styleable.TextView_textSize, 3482 com.android.internal.R.styleable.TextAppearance_textSize); 3483 sAppearanceValues.put(com.android.internal.R.styleable.TextView_typeface, 3484 com.android.internal.R.styleable.TextAppearance_typeface); 3485 sAppearanceValues.put(com.android.internal.R.styleable.TextView_fontFamily, 3486 com.android.internal.R.styleable.TextAppearance_fontFamily); 3487 sAppearanceValues.put(com.android.internal.R.styleable.TextView_textStyle, 3488 com.android.internal.R.styleable.TextAppearance_textStyle); 3489 sAppearanceValues.put(com.android.internal.R.styleable.TextView_textFontWeight, 3490 com.android.internal.R.styleable.TextAppearance_textFontWeight); 3491 sAppearanceValues.put(com.android.internal.R.styleable.TextView_textAllCaps, 3492 com.android.internal.R.styleable.TextAppearance_textAllCaps); 3493 sAppearanceValues.put(com.android.internal.R.styleable.TextView_shadowColor, 3494 com.android.internal.R.styleable.TextAppearance_shadowColor); 3495 sAppearanceValues.put(com.android.internal.R.styleable.TextView_shadowDx, 3496 com.android.internal.R.styleable.TextAppearance_shadowDx); 3497 sAppearanceValues.put(com.android.internal.R.styleable.TextView_shadowDy, 3498 com.android.internal.R.styleable.TextAppearance_shadowDy); 3499 sAppearanceValues.put(com.android.internal.R.styleable.TextView_shadowRadius, 3500 com.android.internal.R.styleable.TextAppearance_shadowRadius); 3501 sAppearanceValues.put(com.android.internal.R.styleable.TextView_elegantTextHeight, 3502 com.android.internal.R.styleable.TextAppearance_elegantTextHeight); 3503 sAppearanceValues.put(com.android.internal.R.styleable.TextView_fallbackLineSpacing, 3504 com.android.internal.R.styleable.TextAppearance_fallbackLineSpacing); 3505 sAppearanceValues.put(com.android.internal.R.styleable.TextView_letterSpacing, 3506 com.android.internal.R.styleable.TextAppearance_letterSpacing); 3507 sAppearanceValues.put(com.android.internal.R.styleable.TextView_fontFeatureSettings, 3508 com.android.internal.R.styleable.TextAppearance_fontFeatureSettings); 3509 } 3510 3511 /** 3512 * Read the Text Appearance attributes from a given TypedArray and set its values to the given 3513 * set. If the TypedArray contains a value that was already set in the given attributes, that 3514 * will be overriden. 3515 * 3516 * @param context The Context to be used 3517 * @param appearance The TypedArray to read properties from 3518 * @param attributes the TextAppearanceAttributes to fill in 3519 * @param styleArray Whether the given TypedArray is a style or a TextAppearance. This defines 3520 * what attribute indexes will be used to read the properties. 3521 */ 3522 private void readTextAppearance(Context context, TypedArray appearance, 3523 TextAppearanceAttributes attributes, boolean styleArray) { 3524 final int n = appearance.getIndexCount(); 3525 for (int i = 0; i < n; i++) { 3526 final int attr = appearance.getIndex(i); 3527 int index = attr; 3528 // Translate style array index ids to TextAppearance ids. 3529 if (styleArray) { 3530 index = sAppearanceValues.get(attr, -1); 3531 if (index == -1) { 3532 // This value is not part of a Text Appearance and should be ignored. 3533 continue; 3534 } 3535 } 3536 switch (index) { 3537 case com.android.internal.R.styleable.TextAppearance_textColorHighlight: 3538 attributes.mTextColorHighlight = 3539 appearance.getColor(attr, attributes.mTextColorHighlight); 3540 break; 3541 case com.android.internal.R.styleable.TextAppearance_textColor: 3542 attributes.mTextColor = appearance.getColorStateList(attr); 3543 break; 3544 case com.android.internal.R.styleable.TextAppearance_textColorHint: 3545 attributes.mTextColorHint = appearance.getColorStateList(attr); 3546 break; 3547 case com.android.internal.R.styleable.TextAppearance_textColorLink: 3548 attributes.mTextColorLink = appearance.getColorStateList(attr); 3549 break; 3550 case com.android.internal.R.styleable.TextAppearance_textSize: 3551 attributes.mTextSize = 3552 appearance.getDimensionPixelSize(attr, attributes.mTextSize); 3553 break; 3554 case com.android.internal.R.styleable.TextAppearance_typeface: 3555 attributes.mTypefaceIndex = appearance.getInt(attr, attributes.mTypefaceIndex); 3556 if (attributes.mTypefaceIndex != -1 && !attributes.mFontFamilyExplicit) { 3557 attributes.mFontFamily = null; 3558 } 3559 break; 3560 case com.android.internal.R.styleable.TextAppearance_fontFamily: 3561 if (!context.isRestricted() && context.canLoadUnsafeResources()) { 3562 try { 3563 attributes.mFontTypeface = appearance.getFont(attr); 3564 } catch (UnsupportedOperationException | Resources.NotFoundException e) { 3565 // Expected if it is not a font resource. 3566 } 3567 } 3568 if (attributes.mFontTypeface == null) { 3569 attributes.mFontFamily = appearance.getString(attr); 3570 } 3571 attributes.mFontFamilyExplicit = true; 3572 break; 3573 case com.android.internal.R.styleable.TextAppearance_textStyle: 3574 attributes.mStyleIndex = appearance.getInt(attr, attributes.mStyleIndex); 3575 break; 3576 case com.android.internal.R.styleable.TextAppearance_textFontWeight: 3577 attributes.mFontWeight = appearance.getInt(attr, attributes.mFontWeight); 3578 break; 3579 case com.android.internal.R.styleable.TextAppearance_textAllCaps: 3580 attributes.mAllCaps = appearance.getBoolean(attr, attributes.mAllCaps); 3581 break; 3582 case com.android.internal.R.styleable.TextAppearance_shadowColor: 3583 attributes.mShadowColor = appearance.getInt(attr, attributes.mShadowColor); 3584 break; 3585 case com.android.internal.R.styleable.TextAppearance_shadowDx: 3586 attributes.mShadowDx = appearance.getFloat(attr, attributes.mShadowDx); 3587 break; 3588 case com.android.internal.R.styleable.TextAppearance_shadowDy: 3589 attributes.mShadowDy = appearance.getFloat(attr, attributes.mShadowDy); 3590 break; 3591 case com.android.internal.R.styleable.TextAppearance_shadowRadius: 3592 attributes.mShadowRadius = appearance.getFloat(attr, attributes.mShadowRadius); 3593 break; 3594 case com.android.internal.R.styleable.TextAppearance_elegantTextHeight: 3595 attributes.mHasElegant = true; 3596 attributes.mElegant = appearance.getBoolean(attr, attributes.mElegant); 3597 break; 3598 case com.android.internal.R.styleable.TextAppearance_fallbackLineSpacing: 3599 attributes.mHasFallbackLineSpacing = true; 3600 attributes.mFallbackLineSpacing = appearance.getBoolean(attr, 3601 attributes.mFallbackLineSpacing); 3602 break; 3603 case com.android.internal.R.styleable.TextAppearance_letterSpacing: 3604 attributes.mHasLetterSpacing = true; 3605 attributes.mLetterSpacing = 3606 appearance.getFloat(attr, attributes.mLetterSpacing); 3607 break; 3608 case com.android.internal.R.styleable.TextAppearance_fontFeatureSettings: 3609 attributes.mFontFeatureSettings = appearance.getString(attr); 3610 break; 3611 default: 3612 } 3613 } 3614 } 3615 3616 private void applyTextAppearance(TextAppearanceAttributes attributes) { 3617 if (attributes.mTextColor != null) { 3618 setTextColor(attributes.mTextColor); 3619 } 3620 3621 if (attributes.mTextColorHint != null) { 3622 setHintTextColor(attributes.mTextColorHint); 3623 } 3624 3625 if (attributes.mTextColorLink != null) { 3626 setLinkTextColor(attributes.mTextColorLink); 3627 } 3628 3629 if (attributes.mTextColorHighlight != 0) { 3630 setHighlightColor(attributes.mTextColorHighlight); 3631 } 3632 3633 if (attributes.mTextSize != 0) { 3634 setRawTextSize(attributes.mTextSize, true /* shouldRequestLayout */); 3635 } 3636 3637 if (attributes.mTypefaceIndex != -1 && !attributes.mFontFamilyExplicit) { 3638 attributes.mFontFamily = null; 3639 } 3640 setTypefaceFromAttrs(attributes.mFontTypeface, attributes.mFontFamily, 3641 attributes.mTypefaceIndex, attributes.mStyleIndex, attributes.mFontWeight); 3642 3643 if (attributes.mShadowColor != 0) { 3644 setShadowLayer(attributes.mShadowRadius, attributes.mShadowDx, attributes.mShadowDy, 3645 attributes.mShadowColor); 3646 } 3647 3648 if (attributes.mAllCaps) { 3649 setTransformationMethod(new AllCapsTransformationMethod(getContext())); 3650 } 3651 3652 if (attributes.mHasElegant) { 3653 setElegantTextHeight(attributes.mElegant); 3654 } 3655 3656 if (attributes.mHasFallbackLineSpacing) { 3657 setFallbackLineSpacing(attributes.mFallbackLineSpacing); 3658 } 3659 3660 if (attributes.mHasLetterSpacing) { 3661 setLetterSpacing(attributes.mLetterSpacing); 3662 } 3663 3664 if (attributes.mFontFeatureSettings != null) { 3665 setFontFeatureSettings(attributes.mFontFeatureSettings); 3666 } 3667 } 3668 3669 /** 3670 * Get the default primary {@link Locale} of the text in this TextView. This will always be 3671 * the first member of {@link #getTextLocales()}. 3672 * @return the default primary {@link Locale} of the text in this TextView. 3673 */ 3674 @NonNull 3675 public Locale getTextLocale() { 3676 return mTextPaint.getTextLocale(); 3677 } 3678 3679 /** 3680 * Get the default {@link LocaleList} of the text in this TextView. 3681 * @return the default {@link LocaleList} of the text in this TextView. 3682 */ 3683 @NonNull @Size(min = 1) 3684 public LocaleList getTextLocales() { 3685 return mTextPaint.getTextLocales(); 3686 } 3687 3688 private void changeListenerLocaleTo(@Nullable Locale locale) { 3689 if (mListenerChanged) { 3690 // If a listener has been explicitly set, don't change it. We may break something. 3691 return; 3692 } 3693 // The following null check is not absolutely necessary since all calling points of 3694 // changeListenerLocaleTo() guarantee a non-null mEditor at the moment. But this is left 3695 // here in case others would want to call this method in the future. 3696 if (mEditor != null) { 3697 KeyListener listener = mEditor.mKeyListener; 3698 if (listener instanceof DigitsKeyListener) { 3699 listener = DigitsKeyListener.getInstance(locale, (DigitsKeyListener) listener); 3700 } else if (listener instanceof DateKeyListener) { 3701 listener = DateKeyListener.getInstance(locale); 3702 } else if (listener instanceof TimeKeyListener) { 3703 listener = TimeKeyListener.getInstance(locale); 3704 } else if (listener instanceof DateTimeKeyListener) { 3705 listener = DateTimeKeyListener.getInstance(locale); 3706 } else { 3707 return; 3708 } 3709 final boolean wasPasswordType = isPasswordInputType(mEditor.mInputType); 3710 setKeyListenerOnly(listener); 3711 setInputTypeFromEditor(); 3712 if (wasPasswordType) { 3713 final int newInputClass = mEditor.mInputType & EditorInfo.TYPE_MASK_CLASS; 3714 if (newInputClass == EditorInfo.TYPE_CLASS_TEXT) { 3715 mEditor.mInputType |= EditorInfo.TYPE_TEXT_VARIATION_PASSWORD; 3716 } else if (newInputClass == EditorInfo.TYPE_CLASS_NUMBER) { 3717 mEditor.mInputType |= EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD; 3718 } 3719 } 3720 } 3721 } 3722 3723 /** 3724 * Set the default {@link Locale} of the text in this TextView to a one-member 3725 * {@link LocaleList} containing just the given Locale. 3726 * 3727 * @param locale the {@link Locale} for drawing text, must not be null. 3728 * 3729 * @see #setTextLocales 3730 */ 3731 public void setTextLocale(@NonNull Locale locale) { 3732 mLocalesChanged = true; 3733 mTextPaint.setTextLocale(locale); 3734 if (mLayout != null) { 3735 nullLayouts(); 3736 requestLayout(); 3737 invalidate(); 3738 } 3739 } 3740 3741 /** 3742 * Set the default {@link LocaleList} of the text in this TextView to the given value. 3743 * 3744 * This value is used to choose appropriate typefaces for ambiguous characters (typically used 3745 * for CJK locales to disambiguate Hanzi/Kanji/Hanja characters). It also affects 3746 * other aspects of text display, including line breaking. 3747 * 3748 * @param locales the {@link LocaleList} for drawing text, must not be null or empty. 3749 * 3750 * @see Paint#setTextLocales 3751 */ 3752 public void setTextLocales(@NonNull @Size(min = 1) LocaleList locales) { 3753 mLocalesChanged = true; 3754 mTextPaint.setTextLocales(locales); 3755 if (mLayout != null) { 3756 nullLayouts(); 3757 requestLayout(); 3758 invalidate(); 3759 } 3760 } 3761 3762 @Override 3763 protected void onConfigurationChanged(Configuration newConfig) { 3764 super.onConfigurationChanged(newConfig); 3765 if (!mLocalesChanged) { 3766 mTextPaint.setTextLocales(LocaleList.getDefault()); 3767 if (mLayout != null) { 3768 nullLayouts(); 3769 requestLayout(); 3770 invalidate(); 3771 } 3772 } 3773 } 3774 3775 /** 3776 * @return the size (in pixels) of the default text size in this TextView. 3777 */ 3778 @ViewDebug.ExportedProperty(category = "text") 3779 public float getTextSize() { 3780 return mTextPaint.getTextSize(); 3781 } 3782 3783 /** 3784 * @return the size (in scaled pixels) of the default text size in this TextView. 3785 * @hide 3786 */ 3787 @ViewDebug.ExportedProperty(category = "text") 3788 public float getScaledTextSize() { 3789 return mTextPaint.getTextSize() / mTextPaint.density; 3790 } 3791 3792 /** @hide */ 3793 @ViewDebug.ExportedProperty(category = "text", mapping = { 3794 @ViewDebug.IntToString(from = Typeface.NORMAL, to = "NORMAL"), 3795 @ViewDebug.IntToString(from = Typeface.BOLD, to = "BOLD"), 3796 @ViewDebug.IntToString(from = Typeface.ITALIC, to = "ITALIC"), 3797 @ViewDebug.IntToString(from = Typeface.BOLD_ITALIC, to = "BOLD_ITALIC") 3798 }) 3799 public int getTypefaceStyle() { 3800 Typeface typeface = mTextPaint.getTypeface(); 3801 return typeface != null ? typeface.getStyle() : Typeface.NORMAL; 3802 } 3803 3804 /** 3805 * Set the default text size to the given value, interpreted as "scaled 3806 * pixel" units. This size is adjusted based on the current density and 3807 * user font size preference. 3808 * 3809 * <p>Note: if this TextView has the auto-size feature enabled than this function is no-op. 3810 * 3811 * @param size The scaled pixel size. 3812 * 3813 * @attr ref android.R.styleable#TextView_textSize 3814 */ 3815 @android.view.RemotableViewMethod 3816 public void setTextSize(float size) { 3817 setTextSize(TypedValue.COMPLEX_UNIT_SP, size); 3818 } 3819 3820 /** 3821 * Set the default text size to a given unit and value. See {@link 3822 * TypedValue} for the possible dimension units. 3823 * 3824 * <p>Note: if this TextView has the auto-size feature enabled than this function is no-op. 3825 * 3826 * @param unit The desired dimension unit. 3827 * @param size The desired size in the given units. 3828 * 3829 * @attr ref android.R.styleable#TextView_textSize 3830 */ 3831 public void setTextSize(int unit, float size) { 3832 if (!isAutoSizeEnabled()) { 3833 setTextSizeInternal(unit, size, true /* shouldRequestLayout */); 3834 } 3835 } 3836 3837 private void setTextSizeInternal(int unit, float size, boolean shouldRequestLayout) { 3838 Context c = getContext(); 3839 Resources r; 3840 3841 if (c == null) { 3842 r = Resources.getSystem(); 3843 } else { 3844 r = c.getResources(); 3845 } 3846 3847 setRawTextSize(TypedValue.applyDimension(unit, size, r.getDisplayMetrics()), 3848 shouldRequestLayout); 3849 } 3850 3851 private void setRawTextSize(float size, boolean shouldRequestLayout) { 3852 if (size != mTextPaint.getTextSize()) { 3853 mTextPaint.setTextSize(size); 3854 3855 if (shouldRequestLayout && mLayout != null) { 3856 // Do not auto-size right after setting the text size. 3857 mNeedsAutoSizeText = false; 3858 nullLayouts(); 3859 requestLayout(); 3860 invalidate(); 3861 } 3862 } 3863 } 3864 3865 /** 3866 * Gets the extent by which text should be stretched horizontally. 3867 * This will usually be 1.0. 3868 * @return The horizontal scale factor. 3869 */ 3870 public float getTextScaleX() { 3871 return mTextPaint.getTextScaleX(); 3872 } 3873 3874 /** 3875 * Sets the horizontal scale factor for text. The default value 3876 * is 1.0. Values greater than 1.0 stretch the text wider. 3877 * Values less than 1.0 make the text narrower. By default, this value is 1.0. 3878 * @param size The horizontal scale factor. 3879 * @attr ref android.R.styleable#TextView_textScaleX 3880 */ 3881 @android.view.RemotableViewMethod 3882 public void setTextScaleX(float size) { 3883 if (size != mTextPaint.getTextScaleX()) { 3884 mUserSetTextScaleX = true; 3885 mTextPaint.setTextScaleX(size); 3886 3887 if (mLayout != null) { 3888 nullLayouts(); 3889 requestLayout(); 3890 invalidate(); 3891 } 3892 } 3893 } 3894 3895 /** 3896 * Sets the typeface and style in which the text should be displayed. 3897 * Note that not all Typeface families actually have bold and italic 3898 * variants, so you may need to use 3899 * {@link #setTypeface(Typeface, int)} to get the appearance 3900 * that you actually want. 3901 * 3902 * @see #getTypeface() 3903 * 3904 * @attr ref android.R.styleable#TextView_fontFamily 3905 * @attr ref android.R.styleable#TextView_typeface 3906 * @attr ref android.R.styleable#TextView_textStyle 3907 */ 3908 public void setTypeface(@Nullable Typeface tf) { 3909 if (mTextPaint.getTypeface() != tf) { 3910 mTextPaint.setTypeface(tf); 3911 3912 if (mLayout != null) { 3913 nullLayouts(); 3914 requestLayout(); 3915 invalidate(); 3916 } 3917 } 3918 } 3919 3920 /** 3921 * Gets the current {@link Typeface} that is used to style the text. 3922 * @return The current Typeface. 3923 * 3924 * @see #setTypeface(Typeface) 3925 * 3926 * @attr ref android.R.styleable#TextView_fontFamily 3927 * @attr ref android.R.styleable#TextView_typeface 3928 * @attr ref android.R.styleable#TextView_textStyle 3929 */ 3930 public Typeface getTypeface() { 3931 return mTextPaint.getTypeface(); 3932 } 3933 3934 /** 3935 * Set the TextView's elegant height metrics flag. This setting selects font 3936 * variants that have not been compacted to fit Latin-based vertical 3937 * metrics, and also increases top and bottom bounds to provide more space. 3938 * 3939 * @param elegant set the paint's elegant metrics flag. 3940 * 3941 * @see #isElegantTextHeight() 3942 * @see Paint#isElegantTextHeight() 3943 * 3944 * @attr ref android.R.styleable#TextView_elegantTextHeight 3945 */ 3946 public void setElegantTextHeight(boolean elegant) { 3947 if (elegant != mTextPaint.isElegantTextHeight()) { 3948 mTextPaint.setElegantTextHeight(elegant); 3949 if (mLayout != null) { 3950 nullLayouts(); 3951 requestLayout(); 3952 invalidate(); 3953 } 3954 } 3955 } 3956 3957 /** 3958 * Set whether to respect the ascent and descent of the fallback fonts that are used in 3959 * displaying the text (which is needed to avoid text from consecutive lines running into 3960 * each other). If set, fallback fonts that end up getting used can increase the ascent 3961 * and descent of the lines that they are used on. 3962 * <p/> 3963 * It is required to be true if text could be in languages like Burmese or Tibetan where text 3964 * is typically much taller or deeper than Latin text. 3965 * 3966 * @param enabled whether to expand linespacing based on fallback fonts, {@code true} by default 3967 * 3968 * @see StaticLayout.Builder#setUseLineSpacingFromFallbacks(boolean) 3969 * 3970 * @attr ref android.R.styleable#TextView_fallbackLineSpacing 3971 */ 3972 public void setFallbackLineSpacing(boolean enabled) { 3973 if (mUseFallbackLineSpacing != enabled) { 3974 mUseFallbackLineSpacing = enabled; 3975 if (mLayout != null) { 3976 nullLayouts(); 3977 requestLayout(); 3978 invalidate(); 3979 } 3980 } 3981 } 3982 3983 /** 3984 * @return whether fallback line spacing is enabled, {@code true} by default 3985 * 3986 * @see #setFallbackLineSpacing(boolean) 3987 * 3988 * @attr ref android.R.styleable#TextView_fallbackLineSpacing 3989 */ 3990 public boolean isFallbackLineSpacing() { 3991 return mUseFallbackLineSpacing; 3992 } 3993 3994 /** 3995 * Get the value of the TextView's elegant height metrics flag. This setting selects font 3996 * variants that have not been compacted to fit Latin-based vertical 3997 * metrics, and also increases top and bottom bounds to provide more space. 3998 * @return {@code true} if the elegant height metrics flag is set. 3999 * 4000 * @see #setElegantTextHeight(boolean) 4001 * @see Paint#setElegantTextHeight(boolean) 4002 */ 4003 public boolean isElegantTextHeight() { 4004 return mTextPaint.isElegantTextHeight(); 4005 } 4006 4007 /** 4008 * Gets the text letter-space value, which determines the spacing between characters. 4009 * The value returned is in ems. Normally, this value is 0.0. 4010 * @return The text letter-space value in ems. 4011 * 4012 * @see #setLetterSpacing(float) 4013 * @see Paint#setLetterSpacing 4014 */ 4015 public float getLetterSpacing() { 4016 return mTextPaint.getLetterSpacing(); 4017 } 4018 4019 /** 4020 * Sets text letter-spacing in em units. Typical values 4021 * for slight expansion will be around 0.05. Negative values tighten text. 4022 * 4023 * @see #getLetterSpacing() 4024 * @see Paint#getLetterSpacing 4025 * 4026 * @param letterSpacing A text letter-space value in ems. 4027 * @attr ref android.R.styleable#TextView_letterSpacing 4028 */ 4029 @android.view.RemotableViewMethod 4030 public void setLetterSpacing(float letterSpacing) { 4031 if (letterSpacing != mTextPaint.getLetterSpacing()) { 4032 mTextPaint.setLetterSpacing(letterSpacing); 4033 4034 if (mLayout != null) { 4035 nullLayouts(); 4036 requestLayout(); 4037 invalidate(); 4038 } 4039 } 4040 } 4041 4042 /** 4043 * Returns the font feature settings. The format is the same as the CSS 4044 * font-feature-settings attribute: 4045 * <a href="https://www.w3.org/TR/css-fonts-3/#font-feature-settings-prop"> 4046 * https://www.w3.org/TR/css-fonts-3/#font-feature-settings-prop</a> 4047 * 4048 * @return the currently set font feature settings. Default is null. 4049 * 4050 * @see #setFontFeatureSettings(String) 4051 * @see Paint#setFontFeatureSettings(String) Paint.setFontFeatureSettings(String) 4052 */ 4053 @Nullable 4054 public String getFontFeatureSettings() { 4055 return mTextPaint.getFontFeatureSettings(); 4056 } 4057 4058 /** 4059 * Returns the font variation settings. 4060 * 4061 * @return the currently set font variation settings. Returns null if no variation is 4062 * specified. 4063 * 4064 * @see #setFontVariationSettings(String) 4065 * @see Paint#setFontVariationSettings(String) Paint.setFontVariationSettings(String) 4066 */ 4067 @Nullable 4068 public String getFontVariationSettings() { 4069 return mTextPaint.getFontVariationSettings(); 4070 } 4071 4072 /** 4073 * Sets the break strategy for breaking paragraphs into lines. The default value for 4074 * TextView is {@link Layout#BREAK_STRATEGY_HIGH_QUALITY}, and the default value for 4075 * EditText is {@link Layout#BREAK_STRATEGY_SIMPLE}, the latter to avoid the 4076 * text "dancing" when being edited. 4077 * 4078 * @attr ref android.R.styleable#TextView_breakStrategy 4079 * @see #getBreakStrategy() 4080 */ 4081 public void setBreakStrategy(@Layout.BreakStrategy int breakStrategy) { 4082 mBreakStrategy = breakStrategy; 4083 if (mLayout != null) { 4084 nullLayouts(); 4085 requestLayout(); 4086 invalidate(); 4087 } 4088 } 4089 4090 /** 4091 * Gets the current strategy for breaking paragraphs into lines. 4092 * @return the current strategy for breaking paragraphs into lines. 4093 * 4094 * @attr ref android.R.styleable#TextView_breakStrategy 4095 * @see #setBreakStrategy(int) 4096 */ 4097 @Layout.BreakStrategy 4098 public int getBreakStrategy() { 4099 return mBreakStrategy; 4100 } 4101 4102 /** 4103 * Sets the frequency of automatic hyphenation to use when determining word breaks. 4104 * The default value for both TextView and {@link EditText} is 4105 * {@link Layout#HYPHENATION_FREQUENCY_NORMAL}. 4106 * Note that the default hyphenation frequency value is set from the theme. 4107 * 4108 * @param hyphenationFrequency The hyphenation frequency to use. 4109 * @attr ref android.R.styleable#TextView_hyphenationFrequency 4110 * @see #getHyphenationFrequency() 4111 */ 4112 public void setHyphenationFrequency(@Layout.HyphenationFrequency int hyphenationFrequency) { 4113 mHyphenationFrequency = hyphenationFrequency; 4114 if (mLayout != null) { 4115 nullLayouts(); 4116 requestLayout(); 4117 invalidate(); 4118 } 4119 } 4120 4121 /** 4122 * Gets the current frequency of automatic hyphenation to be used when determining word breaks. 4123 * @return the current frequency of automatic hyphenation to be used when determining word 4124 * breaks. 4125 * 4126 * @attr ref android.R.styleable#TextView_hyphenationFrequency 4127 * @see #setHyphenationFrequency(int) 4128 */ 4129 @Layout.HyphenationFrequency 4130 public int getHyphenationFrequency() { 4131 return mHyphenationFrequency; 4132 } 4133 4134 /** 4135 * Gets the parameters for text layout precomputation, for use with {@link PrecomputedText}. 4136 * 4137 * @return a current {@link PrecomputedText.Params} 4138 * @see PrecomputedText 4139 */ 4140 public @NonNull PrecomputedText.Params getTextMetricsParams() { 4141 return new PrecomputedText.Params(new TextPaint(mTextPaint), getTextDirectionHeuristic(), 4142 mBreakStrategy, mHyphenationFrequency); 4143 } 4144 4145 /** 4146 * Apply the text layout parameter. 4147 * 4148 * Update the TextView parameters to be compatible with {@link PrecomputedText.Params}. 4149 * @see PrecomputedText 4150 */ 4151 public void setTextMetricsParams(@NonNull PrecomputedText.Params params) { 4152 mTextPaint.set(params.getTextPaint()); 4153 mUserSetTextScaleX = true; 4154 mTextDir = params.getTextDirection(); 4155 mBreakStrategy = params.getBreakStrategy(); 4156 mHyphenationFrequency = params.getHyphenationFrequency(); 4157 if (mLayout != null) { 4158 nullLayouts(); 4159 requestLayout(); 4160 invalidate(); 4161 } 4162 } 4163 4164 /** 4165 * Set justification mode. The default value is {@link Layout#JUSTIFICATION_MODE_NONE}. If the 4166 * last line is too short for justification, the last line will be displayed with the 4167 * alignment set by {@link android.view.View#setTextAlignment}. 4168 * 4169 * @see #getJustificationMode() 4170 */ 4171 @Layout.JustificationMode 4172 public void setJustificationMode(@Layout.JustificationMode int justificationMode) { 4173 mJustificationMode = justificationMode; 4174 if (mLayout != null) { 4175 nullLayouts(); 4176 requestLayout(); 4177 invalidate(); 4178 } 4179 } 4180 4181 /** 4182 * @return true if currently paragraph justification mode. 4183 * 4184 * @see #setJustificationMode(int) 4185 */ 4186 public @Layout.JustificationMode int getJustificationMode() { 4187 return mJustificationMode; 4188 } 4189 4190 /** 4191 * Sets font feature settings. The format is the same as the CSS 4192 * font-feature-settings attribute: 4193 * <a href="https://www.w3.org/TR/css-fonts-3/#font-feature-settings-prop"> 4194 * https://www.w3.org/TR/css-fonts-3/#font-feature-settings-prop</a> 4195 * 4196 * @param fontFeatureSettings font feature settings represented as CSS compatible string 4197 * 4198 * @see #getFontFeatureSettings() 4199 * @see Paint#getFontFeatureSettings() Paint.getFontFeatureSettings() 4200 * 4201 * @attr ref android.R.styleable#TextView_fontFeatureSettings 4202 */ 4203 @android.view.RemotableViewMethod 4204 public void setFontFeatureSettings(@Nullable String fontFeatureSettings) { 4205 if (fontFeatureSettings != mTextPaint.getFontFeatureSettings()) { 4206 mTextPaint.setFontFeatureSettings(fontFeatureSettings); 4207 4208 if (mLayout != null) { 4209 nullLayouts(); 4210 requestLayout(); 4211 invalidate(); 4212 } 4213 } 4214 } 4215 4216 4217 /** 4218 * Sets TrueType or OpenType font variation settings. The settings string is constructed from 4219 * multiple pairs of axis tag and style values. The axis tag must contain four ASCII characters 4220 * and must be wrapped with single quotes (U+0027) or double quotes (U+0022). Axis strings that 4221 * are longer or shorter than four characters, or contain characters outside of U+0020..U+007E 4222 * are invalid. If a specified axis name is not defined in the font, the settings will be 4223 * ignored. 4224 * 4225 * <p> 4226 * Examples, 4227 * <ul> 4228 * <li>Set font width to 150. 4229 * <pre> 4230 * <code> 4231 * TextView textView = (TextView) findViewById(R.id.textView); 4232 * textView.setFontVariationSettings("'wdth' 150"); 4233 * </code> 4234 * </pre> 4235 * </li> 4236 * 4237 * <li>Set the font slant to 20 degrees and ask for italic style. 4238 * <pre> 4239 * <code> 4240 * TextView textView = (TextView) findViewById(R.id.textView); 4241 * textView.setFontVariationSettings("'slnt' 20, 'ital' 1"); 4242 * </code> 4243 * </pre> 4244 * </p> 4245 * </li> 4246 * </ul> 4247 * 4248 * @param fontVariationSettings font variation settings. You can pass null or empty string as 4249 * no variation settings. 4250 * @return true if the given settings is effective to at least one font file underlying this 4251 * TextView. This function also returns true for empty settings string. Otherwise 4252 * returns false. 4253 * 4254 * @throws IllegalArgumentException If given string is not a valid font variation settings 4255 * format. 4256 * 4257 * @see #getFontVariationSettings() 4258 * @see FontVariationAxis 4259 */ 4260 public boolean setFontVariationSettings(@Nullable String fontVariationSettings) { 4261 final String existingSettings = mTextPaint.getFontVariationSettings(); 4262 if (fontVariationSettings == existingSettings 4263 || (fontVariationSettings != null 4264 && fontVariationSettings.equals(existingSettings))) { 4265 return true; 4266 } 4267 boolean effective = mTextPaint.setFontVariationSettings(fontVariationSettings); 4268 4269 if (effective && mLayout != null) { 4270 nullLayouts(); 4271 requestLayout(); 4272 invalidate(); 4273 } 4274 return effective; 4275 } 4276 4277 /** 4278 * Sets the text color for all the states (normal, selected, 4279 * focused) to be this color. 4280 * 4281 * @param color A color value in the form 0xAARRGGBB. 4282 * Do not pass a resource ID. To get a color value from a resource ID, call 4283 * {@link android.support.v4.content.ContextCompat#getColor(Context, int) getColor}. 4284 * 4285 * @see #setTextColor(ColorStateList) 4286 * @see #getTextColors() 4287 * 4288 * @attr ref android.R.styleable#TextView_textColor 4289 */ 4290 @android.view.RemotableViewMethod 4291 public void setTextColor(@ColorInt int color) { 4292 mTextColor = ColorStateList.valueOf(color); 4293 updateTextColors(); 4294 } 4295 4296 /** 4297 * Sets the text color. 4298 * 4299 * @see #setTextColor(int) 4300 * @see #getTextColors() 4301 * @see #setHintTextColor(ColorStateList) 4302 * @see #setLinkTextColor(ColorStateList) 4303 * 4304 * @attr ref android.R.styleable#TextView_textColor 4305 */ 4306 @android.view.RemotableViewMethod 4307 public void setTextColor(ColorStateList colors) { 4308 if (colors == null) { 4309 throw new NullPointerException(); 4310 } 4311 4312 mTextColor = colors; 4313 updateTextColors(); 4314 } 4315 4316 /** 4317 * Gets the text colors for the different states (normal, selected, focused) of the TextView. 4318 * 4319 * @see #setTextColor(ColorStateList) 4320 * @see #setTextColor(int) 4321 * 4322 * @attr ref android.R.styleable#TextView_textColor 4323 */ 4324 public final ColorStateList getTextColors() { 4325 return mTextColor; 4326 } 4327 4328 /** 4329 * Return the current color selected for normal text. 4330 * 4331 * @return Returns the current text color. 4332 */ 4333 @ColorInt 4334 public final int getCurrentTextColor() { 4335 return mCurTextColor; 4336 } 4337 4338 /** 4339 * Sets the color used to display the selection highlight. 4340 * 4341 * @attr ref android.R.styleable#TextView_textColorHighlight 4342 */ 4343 @android.view.RemotableViewMethod 4344 public void setHighlightColor(@ColorInt int color) { 4345 if (mHighlightColor != color) { 4346 mHighlightColor = color; 4347 invalidate(); 4348 } 4349 } 4350 4351 /** 4352 * @return the color used to display the selection highlight 4353 * 4354 * @see #setHighlightColor(int) 4355 * 4356 * @attr ref android.R.styleable#TextView_textColorHighlight 4357 */ 4358 @ColorInt 4359 public int getHighlightColor() { 4360 return mHighlightColor; 4361 } 4362 4363 /** 4364 * Sets whether the soft input method will be made visible when this 4365 * TextView gets focused. The default is true. 4366 */ 4367 @android.view.RemotableViewMethod 4368 public final void setShowSoftInputOnFocus(boolean show) { 4369 createEditorIfNeeded(); 4370 mEditor.mShowSoftInputOnFocus = show; 4371 } 4372 4373 /** 4374 * Returns whether the soft input method will be made visible when this 4375 * TextView gets focused. The default is true. 4376 */ 4377 public final boolean getShowSoftInputOnFocus() { 4378 // When there is no Editor, return default true value 4379 return mEditor == null || mEditor.mShowSoftInputOnFocus; 4380 } 4381 4382 /** 4383 * Gives the text a shadow of the specified blur radius and color, the specified 4384 * distance from its drawn position. 4385 * <p> 4386 * The text shadow produced does not interact with the properties on view 4387 * that are responsible for real time shadows, 4388 * {@link View#getElevation() elevation} and 4389 * {@link View#getTranslationZ() translationZ}. 4390 * 4391 * @see Paint#setShadowLayer(float, float, float, int) 4392 * 4393 * @attr ref android.R.styleable#TextView_shadowColor 4394 * @attr ref android.R.styleable#TextView_shadowDx 4395 * @attr ref android.R.styleable#TextView_shadowDy 4396 * @attr ref android.R.styleable#TextView_shadowRadius 4397 */ 4398 public void setShadowLayer(float radius, float dx, float dy, int color) { 4399 mTextPaint.setShadowLayer(radius, dx, dy, color); 4400 4401 mShadowRadius = radius; 4402 mShadowDx = dx; 4403 mShadowDy = dy; 4404 mShadowColor = color; 4405 4406 // Will change text clip region 4407 if (mEditor != null) { 4408 mEditor.invalidateTextDisplayList(); 4409 mEditor.invalidateHandlesAndActionMode(); 4410 } 4411 invalidate(); 4412 } 4413 4414 /** 4415 * Gets the radius of the shadow layer. 4416 * 4417 * @return the radius of the shadow layer. If 0, the shadow layer is not visible 4418 * 4419 * @see #setShadowLayer(float, float, float, int) 4420 * 4421 * @attr ref android.R.styleable#TextView_shadowRadius 4422 */ 4423 public float getShadowRadius() { 4424 return mShadowRadius; 4425 } 4426 4427 /** 4428 * @return the horizontal offset of the shadow layer 4429 * 4430 * @see #setShadowLayer(float, float, float, int) 4431 * 4432 * @attr ref android.R.styleable#TextView_shadowDx 4433 */ 4434 public float getShadowDx() { 4435 return mShadowDx; 4436 } 4437 4438 /** 4439 * Gets the vertical offset of the shadow layer. 4440 * @return The vertical offset of the shadow layer. 4441 * 4442 * @see #setShadowLayer(float, float, float, int) 4443 * 4444 * @attr ref android.R.styleable#TextView_shadowDy 4445 */ 4446 public float getShadowDy() { 4447 return mShadowDy; 4448 } 4449 4450 /** 4451 * Gets the color of the shadow layer. 4452 * @return the color of the shadow layer 4453 * 4454 * @see #setShadowLayer(float, float, float, int) 4455 * 4456 * @attr ref android.R.styleable#TextView_shadowColor 4457 */ 4458 @ColorInt 4459 public int getShadowColor() { 4460 return mShadowColor; 4461 } 4462 4463 /** 4464 * Gets the {@link TextPaint} used for the text. 4465 * Use this only to consult the Paint's properties and not to change them. 4466 * @return The base paint used for the text. 4467 */ 4468 public TextPaint getPaint() { 4469 return mTextPaint; 4470 } 4471 4472 /** 4473 * Sets the autolink mask of the text. See {@link 4474 * android.text.util.Linkify#ALL Linkify.ALL} and peers for 4475 * possible values. 4476 * 4477 * @attr ref android.R.styleable#TextView_autoLink 4478 */ 4479 @android.view.RemotableViewMethod 4480 public final void setAutoLinkMask(int mask) { 4481 mAutoLinkMask = mask; 4482 } 4483 4484 /** 4485 * Sets whether the movement method will automatically be set to 4486 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 4487 * set to nonzero and links are detected in {@link #setText}. 4488 * The default is true. 4489 * 4490 * @attr ref android.R.styleable#TextView_linksClickable 4491 */ 4492 @android.view.RemotableViewMethod 4493 public final void setLinksClickable(boolean whether) { 4494 mLinksClickable = whether; 4495 } 4496 4497 /** 4498 * Returns whether the movement method will automatically be set to 4499 * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been 4500 * set to nonzero and links are detected in {@link #setText}. 4501 * The default is true. 4502 * 4503 * @attr ref android.R.styleable#TextView_linksClickable 4504 */ 4505 public final boolean getLinksClickable() { 4506 return mLinksClickable; 4507 } 4508 4509 /** 4510 * Returns the list of {@link android.text.style.URLSpan URLSpans} attached to the text 4511 * (by {@link Linkify} or otherwise) if any. You can call 4512 * {@link URLSpan#getURL} on them to find where they link to 4513 * or use {@link Spanned#getSpanStart} and {@link Spanned#getSpanEnd} 4514 * to find the region of the text they are attached to. 4515 */ 4516 public URLSpan[] getUrls() { 4517 if (mText instanceof Spanned) { 4518 return ((Spanned) mText).getSpans(0, mText.length(), URLSpan.class); 4519 } else { 4520 return new URLSpan[0]; 4521 } 4522 } 4523 4524 /** 4525 * Sets the color of the hint text for all the states (disabled, focussed, selected...) of this 4526 * TextView. 4527 * 4528 * @see #setHintTextColor(ColorStateList) 4529 * @see #getHintTextColors() 4530 * @see #setTextColor(int) 4531 * 4532 * @attr ref android.R.styleable#TextView_textColorHint 4533 */ 4534 @android.view.RemotableViewMethod 4535 public final void setHintTextColor(@ColorInt int color) { 4536 mHintTextColor = ColorStateList.valueOf(color); 4537 updateTextColors(); 4538 } 4539 4540 /** 4541 * Sets the color of the hint text. 4542 * 4543 * @see #getHintTextColors() 4544 * @see #setHintTextColor(int) 4545 * @see #setTextColor(ColorStateList) 4546 * @see #setLinkTextColor(ColorStateList) 4547 * 4548 * @attr ref android.R.styleable#TextView_textColorHint 4549 */ 4550 public final void setHintTextColor(ColorStateList colors) { 4551 mHintTextColor = colors; 4552 updateTextColors(); 4553 } 4554 4555 /** 4556 * @return the color of the hint text, for the different states of this TextView. 4557 * 4558 * @see #setHintTextColor(ColorStateList) 4559 * @see #setHintTextColor(int) 4560 * @see #setTextColor(ColorStateList) 4561 * @see #setLinkTextColor(ColorStateList) 4562 * 4563 * @attr ref android.R.styleable#TextView_textColorHint 4564 */ 4565 public final ColorStateList getHintTextColors() { 4566 return mHintTextColor; 4567 } 4568 4569 /** 4570 * <p>Return the current color selected to paint the hint text.</p> 4571 * 4572 * @return Returns the current hint text color. 4573 */ 4574 @ColorInt 4575 public final int getCurrentHintTextColor() { 4576 return mHintTextColor != null ? mCurHintTextColor : mCurTextColor; 4577 } 4578 4579 /** 4580 * Sets the color of links in the text. 4581 * 4582 * @see #setLinkTextColor(ColorStateList) 4583 * @see #getLinkTextColors() 4584 * 4585 * @attr ref android.R.styleable#TextView_textColorLink 4586 */ 4587 @android.view.RemotableViewMethod 4588 public final void setLinkTextColor(@ColorInt int color) { 4589 mLinkTextColor = ColorStateList.valueOf(color); 4590 updateTextColors(); 4591 } 4592 4593 /** 4594 * Sets the color of links in the text. 4595 * 4596 * @see #setLinkTextColor(int) 4597 * @see #getLinkTextColors() 4598 * @see #setTextColor(ColorStateList) 4599 * @see #setHintTextColor(ColorStateList) 4600 * 4601 * @attr ref android.R.styleable#TextView_textColorLink 4602 */ 4603 public final void setLinkTextColor(ColorStateList colors) { 4604 mLinkTextColor = colors; 4605 updateTextColors(); 4606 } 4607 4608 /** 4609 * @return the list of colors used to paint the links in the text, for the different states of 4610 * this TextView 4611 * 4612 * @see #setLinkTextColor(ColorStateList) 4613 * @see #setLinkTextColor(int) 4614 * 4615 * @attr ref android.R.styleable#TextView_textColorLink 4616 */ 4617 public final ColorStateList getLinkTextColors() { 4618 return mLinkTextColor; 4619 } 4620 4621 /** 4622 * Sets the horizontal alignment of the text and the 4623 * vertical gravity that will be used when there is extra space 4624 * in the TextView beyond what is required for the text itself. 4625 * 4626 * @see android.view.Gravity 4627 * @attr ref android.R.styleable#TextView_gravity 4628 */ 4629 public void setGravity(int gravity) { 4630 if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) == 0) { 4631 gravity |= Gravity.START; 4632 } 4633 if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) { 4634 gravity |= Gravity.TOP; 4635 } 4636 4637 boolean newLayout = false; 4638 4639 if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) 4640 != (mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK)) { 4641 newLayout = true; 4642 } 4643 4644 if (gravity != mGravity) { 4645 invalidate(); 4646 } 4647 4648 mGravity = gravity; 4649 4650 if (mLayout != null && newLayout) { 4651 // XXX this is heavy-handed because no actual content changes. 4652 int want = mLayout.getWidth(); 4653 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 4654 4655 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 4656 mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(), true); 4657 } 4658 } 4659 4660 /** 4661 * Returns the horizontal and vertical alignment of this TextView. 4662 * 4663 * @see android.view.Gravity 4664 * @attr ref android.R.styleable#TextView_gravity 4665 */ 4666 public int getGravity() { 4667 return mGravity; 4668 } 4669 4670 /** 4671 * Gets the flags on the Paint being used to display the text. 4672 * @return The flags on the Paint being used to display the text. 4673 * @see Paint#getFlags 4674 */ 4675 public int getPaintFlags() { 4676 return mTextPaint.getFlags(); 4677 } 4678 4679 /** 4680 * Sets flags on the Paint being used to display the text and 4681 * reflows the text if they are different from the old flags. 4682 * @see Paint#setFlags 4683 */ 4684 @android.view.RemotableViewMethod 4685 public void setPaintFlags(int flags) { 4686 if (mTextPaint.getFlags() != flags) { 4687 mTextPaint.setFlags(flags); 4688 4689 if (mLayout != null) { 4690 nullLayouts(); 4691 requestLayout(); 4692 invalidate(); 4693 } 4694 } 4695 } 4696 4697 /** 4698 * Sets whether the text should be allowed to be wider than the 4699 * View is. If false, it will be wrapped to the width of the View. 4700 * 4701 * @attr ref android.R.styleable#TextView_scrollHorizontally 4702 */ 4703 public void setHorizontallyScrolling(boolean whether) { 4704 if (mHorizontallyScrolling != whether) { 4705 mHorizontallyScrolling = whether; 4706 4707 if (mLayout != null) { 4708 nullLayouts(); 4709 requestLayout(); 4710 invalidate(); 4711 } 4712 } 4713 } 4714 4715 /** 4716 * Returns whether the text is allowed to be wider than the View is. 4717 * If false, the text will be wrapped to the width of the View. 4718 * 4719 * @attr ref android.R.styleable#TextView_scrollHorizontally 4720 * @hide 4721 */ 4722 public boolean getHorizontallyScrolling() { 4723 return mHorizontallyScrolling; 4724 } 4725 4726 /** 4727 * Sets the height of the TextView to be at least {@code minLines} tall. 4728 * <p> 4729 * This value is used for height calculation if LayoutParams does not force TextView to have an 4730 * exact height. Setting this value overrides other previous minimum height configurations such 4731 * as {@link #setMinHeight(int)} or {@link #setHeight(int)}. {@link #setSingleLine()} will set 4732 * this value to 1. 4733 * 4734 * @param minLines the minimum height of TextView in terms of number of lines 4735 * 4736 * @see #getMinLines() 4737 * @see #setLines(int) 4738 * 4739 * @attr ref android.R.styleable#TextView_minLines 4740 */ 4741 @android.view.RemotableViewMethod 4742 public void setMinLines(int minLines) { 4743 mMinimum = minLines; 4744 mMinMode = LINES; 4745 4746 requestLayout(); 4747 invalidate(); 4748 } 4749 4750 /** 4751 * Returns the minimum height of TextView in terms of number of lines or -1 if the minimum 4752 * height was set using {@link #setMinHeight(int)} or {@link #setHeight(int)}. 4753 * 4754 * @return the minimum height of TextView in terms of number of lines or -1 if the minimum 4755 * height is not defined in lines 4756 * 4757 * @see #setMinLines(int) 4758 * @see #setLines(int) 4759 * 4760 * @attr ref android.R.styleable#TextView_minLines 4761 */ 4762 public int getMinLines() { 4763 return mMinMode == LINES ? mMinimum : -1; 4764 } 4765 4766 /** 4767 * Sets the height of the TextView to be at least {@code minPixels} tall. 4768 * <p> 4769 * This value is used for height calculation if LayoutParams does not force TextView to have an 4770 * exact height. Setting this value overrides previous minimum height configurations such as 4771 * {@link #setMinLines(int)} or {@link #setLines(int)}. 4772 * <p> 4773 * The value given here is different than {@link #setMinimumHeight(int)}. Between 4774 * {@code minHeight} and the value set in {@link #setMinimumHeight(int)}, the greater one is 4775 * used to decide the final height. 4776 * 4777 * @param minPixels the minimum height of TextView in terms of pixels 4778 * 4779 * @see #getMinHeight() 4780 * @see #setHeight(int) 4781 * 4782 * @attr ref android.R.styleable#TextView_minHeight 4783 */ 4784 @android.view.RemotableViewMethod 4785 public void setMinHeight(int minPixels) { 4786 mMinimum = minPixels; 4787 mMinMode = PIXELS; 4788 4789 requestLayout(); 4790 invalidate(); 4791 } 4792 4793 /** 4794 * Returns the minimum height of TextView in terms of pixels or -1 if the minimum height was 4795 * set using {@link #setMinLines(int)} or {@link #setLines(int)}. 4796 * 4797 * @return the minimum height of TextView in terms of pixels or -1 if the minimum height is not 4798 * defined in pixels 4799 * 4800 * @see #setMinHeight(int) 4801 * @see #setHeight(int) 4802 * 4803 * @attr ref android.R.styleable#TextView_minHeight 4804 */ 4805 public int getMinHeight() { 4806 return mMinMode == PIXELS ? mMinimum : -1; 4807 } 4808 4809 /** 4810 * Sets the height of the TextView to be at most {@code maxLines} tall. 4811 * <p> 4812 * This value is used for height calculation if LayoutParams does not force TextView to have an 4813 * exact height. Setting this value overrides previous maximum height configurations such as 4814 * {@link #setMaxHeight(int)} or {@link #setLines(int)}. 4815 * 4816 * @param maxLines the maximum height of TextView in terms of number of lines 4817 * 4818 * @see #getMaxLines() 4819 * @see #setLines(int) 4820 * 4821 * @attr ref android.R.styleable#TextView_maxLines 4822 */ 4823 @android.view.RemotableViewMethod 4824 public void setMaxLines(int maxLines) { 4825 mMaximum = maxLines; 4826 mMaxMode = LINES; 4827 4828 requestLayout(); 4829 invalidate(); 4830 } 4831 4832 /** 4833 * Returns the maximum height of TextView in terms of number of lines or -1 if the 4834 * maximum height was set using {@link #setMaxHeight(int)} or {@link #setHeight(int)}. 4835 * 4836 * @return the maximum height of TextView in terms of number of lines. -1 if the maximum height 4837 * is not defined in lines. 4838 * 4839 * @see #setMaxLines(int) 4840 * @see #setLines(int) 4841 * 4842 * @attr ref android.R.styleable#TextView_maxLines 4843 */ 4844 public int getMaxLines() { 4845 return mMaxMode == LINES ? mMaximum : -1; 4846 } 4847 4848 /** 4849 * Sets the height of the TextView to be at most {@code maxPixels} tall. 4850 * <p> 4851 * This value is used for height calculation if LayoutParams does not force TextView to have an 4852 * exact height. Setting this value overrides previous maximum height configurations such as 4853 * {@link #setMaxLines(int)} or {@link #setLines(int)}. 4854 * 4855 * @param maxPixels the maximum height of TextView in terms of pixels 4856 * 4857 * @see #getMaxHeight() 4858 * @see #setHeight(int) 4859 * 4860 * @attr ref android.R.styleable#TextView_maxHeight 4861 */ 4862 @android.view.RemotableViewMethod 4863 public void setMaxHeight(int maxPixels) { 4864 mMaximum = maxPixels; 4865 mMaxMode = PIXELS; 4866 4867 requestLayout(); 4868 invalidate(); 4869 } 4870 4871 /** 4872 * Returns the maximum height of TextView in terms of pixels or -1 if the maximum height was 4873 * set using {@link #setMaxLines(int)} or {@link #setLines(int)}. 4874 * 4875 * @return the maximum height of TextView in terms of pixels or -1 if the maximum height 4876 * is not defined in pixels 4877 * 4878 * @see #setMaxHeight(int) 4879 * @see #setHeight(int) 4880 * 4881 * @attr ref android.R.styleable#TextView_maxHeight 4882 */ 4883 public int getMaxHeight() { 4884 return mMaxMode == PIXELS ? mMaximum : -1; 4885 } 4886 4887 /** 4888 * Sets the height of the TextView to be exactly {@code lines} tall. 4889 * <p> 4890 * This value is used for height calculation if LayoutParams does not force TextView to have an 4891 * exact height. Setting this value overrides previous minimum/maximum height configurations 4892 * such as {@link #setMinLines(int)} or {@link #setMaxLines(int)}. {@link #setSingleLine()} will 4893 * set this value to 1. 4894 * 4895 * @param lines the exact height of the TextView in terms of lines 4896 * 4897 * @see #setHeight(int) 4898 * 4899 * @attr ref android.R.styleable#TextView_lines 4900 */ 4901 @android.view.RemotableViewMethod 4902 public void setLines(int lines) { 4903 mMaximum = mMinimum = lines; 4904 mMaxMode = mMinMode = LINES; 4905 4906 requestLayout(); 4907 invalidate(); 4908 } 4909 4910 /** 4911 * Sets the height of the TextView to be exactly <code>pixels</code> tall. 4912 * <p> 4913 * This value is used for height calculation if LayoutParams does not force TextView to have an 4914 * exact height. Setting this value overrides previous minimum/maximum height configurations 4915 * such as {@link #setMinHeight(int)} or {@link #setMaxHeight(int)}. 4916 * 4917 * @param pixels the exact height of the TextView in terms of pixels 4918 * 4919 * @see #setLines(int) 4920 * 4921 * @attr ref android.R.styleable#TextView_height 4922 */ 4923 @android.view.RemotableViewMethod 4924 public void setHeight(int pixels) { 4925 mMaximum = mMinimum = pixels; 4926 mMaxMode = mMinMode = PIXELS; 4927 4928 requestLayout(); 4929 invalidate(); 4930 } 4931 4932 /** 4933 * Sets the width of the TextView to be at least {@code minEms} wide. 4934 * <p> 4935 * This value is used for width calculation if LayoutParams does not force TextView to have an 4936 * exact width. Setting this value overrides previous minimum width configurations such as 4937 * {@link #setMinWidth(int)} or {@link #setWidth(int)}. 4938 * 4939 * @param minEms the minimum width of TextView in terms of ems 4940 * 4941 * @see #getMinEms() 4942 * @see #setEms(int) 4943 * 4944 * @attr ref android.R.styleable#TextView_minEms 4945 */ 4946 @android.view.RemotableViewMethod 4947 public void setMinEms(int minEms) { 4948 mMinWidth = minEms; 4949 mMinWidthMode = EMS; 4950 4951 requestLayout(); 4952 invalidate(); 4953 } 4954 4955 /** 4956 * Returns the minimum width of TextView in terms of ems or -1 if the minimum width was set 4957 * using {@link #setMinWidth(int)} or {@link #setWidth(int)}. 4958 * 4959 * @return the minimum width of TextView in terms of ems. -1 if the minimum width is not 4960 * defined in ems 4961 * 4962 * @see #setMinEms(int) 4963 * @see #setEms(int) 4964 * 4965 * @attr ref android.R.styleable#TextView_minEms 4966 */ 4967 public int getMinEms() { 4968 return mMinWidthMode == EMS ? mMinWidth : -1; 4969 } 4970 4971 /** 4972 * Sets the width of the TextView to be at least {@code minPixels} wide. 4973 * <p> 4974 * This value is used for width calculation if LayoutParams does not force TextView to have an 4975 * exact width. Setting this value overrides previous minimum width configurations such as 4976 * {@link #setMinEms(int)} or {@link #setEms(int)}. 4977 * <p> 4978 * The value given here is different than {@link #setMinimumWidth(int)}. Between 4979 * {@code minWidth} and the value set in {@link #setMinimumWidth(int)}, the greater one is used 4980 * to decide the final width. 4981 * 4982 * @param minPixels the minimum width of TextView in terms of pixels 4983 * 4984 * @see #getMinWidth() 4985 * @see #setWidth(int) 4986 * 4987 * @attr ref android.R.styleable#TextView_minWidth 4988 */ 4989 @android.view.RemotableViewMethod 4990 public void setMinWidth(int minPixels) { 4991 mMinWidth = minPixels; 4992 mMinWidthMode = PIXELS; 4993 4994 requestLayout(); 4995 invalidate(); 4996 } 4997 4998 /** 4999 * Returns the minimum width of TextView in terms of pixels or -1 if the minimum width was set 5000 * using {@link #setMinEms(int)} or {@link #setEms(int)}. 5001 * 5002 * @return the minimum width of TextView in terms of pixels or -1 if the minimum width is not 5003 * defined in pixels 5004 * 5005 * @see #setMinWidth(int) 5006 * @see #setWidth(int) 5007 * 5008 * @attr ref android.R.styleable#TextView_minWidth 5009 */ 5010 public int getMinWidth() { 5011 return mMinWidthMode == PIXELS ? mMinWidth : -1; 5012 } 5013 5014 /** 5015 * Sets the width of the TextView to be at most {@code maxEms} wide. 5016 * <p> 5017 * This value is used for width calculation if LayoutParams does not force TextView to have an 5018 * exact width. Setting this value overrides previous maximum width configurations such as 5019 * {@link #setMaxWidth(int)} or {@link #setWidth(int)}. 5020 * 5021 * @param maxEms the maximum width of TextView in terms of ems 5022 * 5023 * @see #getMaxEms() 5024 * @see #setEms(int) 5025 * 5026 * @attr ref android.R.styleable#TextView_maxEms 5027 */ 5028 @android.view.RemotableViewMethod 5029 public void setMaxEms(int maxEms) { 5030 mMaxWidth = maxEms; 5031 mMaxWidthMode = EMS; 5032 5033 requestLayout(); 5034 invalidate(); 5035 } 5036 5037 /** 5038 * Returns the maximum width of TextView in terms of ems or -1 if the maximum width was set 5039 * using {@link #setMaxWidth(int)} or {@link #setWidth(int)}. 5040 * 5041 * @return the maximum width of TextView in terms of ems or -1 if the maximum width is not 5042 * defined in ems 5043 * 5044 * @see #setMaxEms(int) 5045 * @see #setEms(int) 5046 * 5047 * @attr ref android.R.styleable#TextView_maxEms 5048 */ 5049 public int getMaxEms() { 5050 return mMaxWidthMode == EMS ? mMaxWidth : -1; 5051 } 5052 5053 /** 5054 * Sets the width of the TextView to be at most {@code maxPixels} wide. 5055 * <p> 5056 * This value is used for width calculation if LayoutParams does not force TextView to have an 5057 * exact width. Setting this value overrides previous maximum width configurations such as 5058 * {@link #setMaxEms(int)} or {@link #setEms(int)}. 5059 * 5060 * @param maxPixels the maximum width of TextView in terms of pixels 5061 * 5062 * @see #getMaxWidth() 5063 * @see #setWidth(int) 5064 * 5065 * @attr ref android.R.styleable#TextView_maxWidth 5066 */ 5067 @android.view.RemotableViewMethod 5068 public void setMaxWidth(int maxPixels) { 5069 mMaxWidth = maxPixels; 5070 mMaxWidthMode = PIXELS; 5071 5072 requestLayout(); 5073 invalidate(); 5074 } 5075 5076 /** 5077 * Returns the maximum width of TextView in terms of pixels or -1 if the maximum width was set 5078 * using {@link #setMaxEms(int)} or {@link #setEms(int)}. 5079 * 5080 * @return the maximum width of TextView in terms of pixels. -1 if the maximum width is not 5081 * defined in pixels 5082 * 5083 * @see #setMaxWidth(int) 5084 * @see #setWidth(int) 5085 * 5086 * @attr ref android.R.styleable#TextView_maxWidth 5087 */ 5088 public int getMaxWidth() { 5089 return mMaxWidthMode == PIXELS ? mMaxWidth : -1; 5090 } 5091 5092 /** 5093 * Sets the width of the TextView to be exactly {@code ems} wide. 5094 * 5095 * This value is used for width calculation if LayoutParams does not force TextView to have an 5096 * exact width. Setting this value overrides previous minimum/maximum configurations such as 5097 * {@link #setMinEms(int)} or {@link #setMaxEms(int)}. 5098 * 5099 * @param ems the exact width of the TextView in terms of ems 5100 * 5101 * @see #setWidth(int) 5102 * 5103 * @attr ref android.R.styleable#TextView_ems 5104 */ 5105 @android.view.RemotableViewMethod 5106 public void setEms(int ems) { 5107 mMaxWidth = mMinWidth = ems; 5108 mMaxWidthMode = mMinWidthMode = EMS; 5109 5110 requestLayout(); 5111 invalidate(); 5112 } 5113 5114 /** 5115 * Sets the width of the TextView to be exactly {@code pixels} wide. 5116 * <p> 5117 * This value is used for width calculation if LayoutParams does not force TextView to have an 5118 * exact width. Setting this value overrides previous minimum/maximum width configurations 5119 * such as {@link #setMinWidth(int)} or {@link #setMaxWidth(int)}. 5120 * 5121 * @param pixels the exact width of the TextView in terms of pixels 5122 * 5123 * @see #setEms(int) 5124 * 5125 * @attr ref android.R.styleable#TextView_width 5126 */ 5127 @android.view.RemotableViewMethod 5128 public void setWidth(int pixels) { 5129 mMaxWidth = mMinWidth = pixels; 5130 mMaxWidthMode = mMinWidthMode = PIXELS; 5131 5132 requestLayout(); 5133 invalidate(); 5134 } 5135 5136 /** 5137 * Sets line spacing for this TextView. Each line other than the last line will have its height 5138 * multiplied by {@code mult} and have {@code add} added to it. 5139 * 5140 * @param add The value in pixels that should be added to each line other than the last line. 5141 * This will be applied after the multiplier 5142 * @param mult The value by which each line height other than the last line will be multiplied 5143 * by 5144 * 5145 * @attr ref android.R.styleable#TextView_lineSpacingExtra 5146 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 5147 */ 5148 public void setLineSpacing(float add, float mult) { 5149 if (mSpacingAdd != add || mSpacingMult != mult) { 5150 mSpacingAdd = add; 5151 mSpacingMult = mult; 5152 5153 if (mLayout != null) { 5154 nullLayouts(); 5155 requestLayout(); 5156 invalidate(); 5157 } 5158 } 5159 } 5160 5161 /** 5162 * Gets the line spacing multiplier 5163 * 5164 * @return the value by which each line's height is multiplied to get its actual height. 5165 * 5166 * @see #setLineSpacing(float, float) 5167 * @see #getLineSpacingExtra() 5168 * 5169 * @attr ref android.R.styleable#TextView_lineSpacingMultiplier 5170 */ 5171 public float getLineSpacingMultiplier() { 5172 return mSpacingMult; 5173 } 5174 5175 /** 5176 * Gets the line spacing extra space 5177 * 5178 * @return the extra space that is added to the height of each lines of this TextView. 5179 * 5180 * @see #setLineSpacing(float, float) 5181 * @see #getLineSpacingMultiplier() 5182 * 5183 * @attr ref android.R.styleable#TextView_lineSpacingExtra 5184 */ 5185 public float getLineSpacingExtra() { 5186 return mSpacingAdd; 5187 } 5188 5189 /** 5190 * Sets an explicit line height for this TextView. This is equivalent to the vertical distance 5191 * between subsequent baselines in the TextView. 5192 * 5193 * @param lineHeight the line height in pixels 5194 * 5195 * @see #setLineSpacing(float, float) 5196 * @see #getLineSpacing() 5197 * 5198 * @attr ref android.R.styleable#TextView_lineHeight 5199 */ 5200 public void setLineHeight(@Px @IntRange(from = 0) int lineHeight) { 5201 Preconditions.checkArgumentNonnegative(lineHeight); 5202 5203 final int fontHeight = getPaint().getFontMetricsInt(null); 5204 // Make sure we don't setLineSpacing if it's not needed to avoid unnecessary redraw. 5205 if (lineHeight != fontHeight) { 5206 // Set lineSpacingExtra by the difference of lineSpacing with lineHeight 5207 setLineSpacing(lineHeight - fontHeight, 1f); 5208 } 5209 } 5210 5211 /** 5212 * Convenience method to append the specified text to the TextView's 5213 * display buffer, upgrading it to {@link android.widget.TextView.BufferType#EDITABLE} 5214 * if it was not already editable. 5215 * 5216 * @param text text to be appended to the already displayed text 5217 */ 5218 public final void append(CharSequence text) { 5219 append(text, 0, text.length()); 5220 } 5221 5222 /** 5223 * Convenience method to append the specified text slice to the TextView's 5224 * display buffer, upgrading it to {@link android.widget.TextView.BufferType#EDITABLE} 5225 * if it was not already editable. 5226 * 5227 * @param text text to be appended to the already displayed text 5228 * @param start the index of the first character in the {@code text} 5229 * @param end the index of the character following the last character in the {@code text} 5230 * 5231 * @see Appendable#append(CharSequence, int, int) 5232 */ 5233 public void append(CharSequence text, int start, int end) { 5234 if (!(mText instanceof Editable)) { 5235 setText(mText, BufferType.EDITABLE); 5236 } 5237 5238 ((Editable) mText).append(text, start, end); 5239 5240 if (mAutoLinkMask != 0) { 5241 boolean linksWereAdded = Linkify.addLinks(mSpannable, mAutoLinkMask); 5242 // Do not change the movement method for text that support text selection as it 5243 // would prevent an arbitrary cursor displacement. 5244 if (linksWereAdded && mLinksClickable && !textCanBeSelected()) { 5245 setMovementMethod(LinkMovementMethod.getInstance()); 5246 } 5247 } 5248 } 5249 5250 private void updateTextColors() { 5251 boolean inval = false; 5252 final int[] drawableState = getDrawableState(); 5253 int color = mTextColor.getColorForState(drawableState, 0); 5254 if (color != mCurTextColor) { 5255 mCurTextColor = color; 5256 inval = true; 5257 } 5258 if (mLinkTextColor != null) { 5259 color = mLinkTextColor.getColorForState(drawableState, 0); 5260 if (color != mTextPaint.linkColor) { 5261 mTextPaint.linkColor = color; 5262 inval = true; 5263 } 5264 } 5265 if (mHintTextColor != null) { 5266 color = mHintTextColor.getColorForState(drawableState, 0); 5267 if (color != mCurHintTextColor) { 5268 mCurHintTextColor = color; 5269 if (mText.length() == 0) { 5270 inval = true; 5271 } 5272 } 5273 } 5274 if (inval) { 5275 // Text needs to be redrawn with the new color 5276 if (mEditor != null) mEditor.invalidateTextDisplayList(); 5277 invalidate(); 5278 } 5279 } 5280 5281 @Override 5282 protected void drawableStateChanged() { 5283 super.drawableStateChanged(); 5284 5285 if (mTextColor != null && mTextColor.isStateful() 5286 || (mHintTextColor != null && mHintTextColor.isStateful()) 5287 || (mLinkTextColor != null && mLinkTextColor.isStateful())) { 5288 updateTextColors(); 5289 } 5290 5291 if (mDrawables != null) { 5292 final int[] state = getDrawableState(); 5293 for (Drawable dr : mDrawables.mShowing) { 5294 if (dr != null && dr.isStateful() && dr.setState(state)) { 5295 invalidateDrawable(dr); 5296 } 5297 } 5298 } 5299 } 5300 5301 @Override 5302 public void drawableHotspotChanged(float x, float y) { 5303 super.drawableHotspotChanged(x, y); 5304 5305 if (mDrawables != null) { 5306 for (Drawable dr : mDrawables.mShowing) { 5307 if (dr != null) { 5308 dr.setHotspot(x, y); 5309 } 5310 } 5311 } 5312 } 5313 5314 @Override 5315 public Parcelable onSaveInstanceState() { 5316 Parcelable superState = super.onSaveInstanceState(); 5317 5318 // Save state if we are forced to 5319 final boolean freezesText = getFreezesText(); 5320 boolean hasSelection = false; 5321 int start = -1; 5322 int end = -1; 5323 5324 if (mText != null) { 5325 start = getSelectionStart(); 5326 end = getSelectionEnd(); 5327 if (start >= 0 || end >= 0) { 5328 // Or save state if there is a selection 5329 hasSelection = true; 5330 } 5331 } 5332 5333 if (freezesText || hasSelection) { 5334 SavedState ss = new SavedState(superState); 5335 5336 if (freezesText) { 5337 if (mText instanceof Spanned) { 5338 final Spannable sp = new SpannableStringBuilder(mText); 5339 5340 if (mEditor != null) { 5341 removeMisspelledSpans(sp); 5342 sp.removeSpan(mEditor.mSuggestionRangeSpan); 5343 } 5344 5345 ss.text = sp; 5346 } else { 5347 ss.text = mText.toString(); 5348 } 5349 } 5350 5351 if (hasSelection) { 5352 // XXX Should also save the current scroll position! 5353 ss.selStart = start; 5354 ss.selEnd = end; 5355 } 5356 5357 if (isFocused() && start >= 0 && end >= 0) { 5358 ss.frozenWithFocus = true; 5359 } 5360 5361 ss.error = getError(); 5362 5363 if (mEditor != null) { 5364 ss.editorState = mEditor.saveInstanceState(); 5365 } 5366 return ss; 5367 } 5368 5369 return superState; 5370 } 5371 5372 void removeMisspelledSpans(Spannable spannable) { 5373 SuggestionSpan[] suggestionSpans = spannable.getSpans(0, spannable.length(), 5374 SuggestionSpan.class); 5375 for (int i = 0; i < suggestionSpans.length; i++) { 5376 int flags = suggestionSpans[i].getFlags(); 5377 if ((flags & SuggestionSpan.FLAG_EASY_CORRECT) != 0 5378 && (flags & SuggestionSpan.FLAG_MISSPELLED) != 0) { 5379 spannable.removeSpan(suggestionSpans[i]); 5380 } 5381 } 5382 } 5383 5384 @Override 5385 public void onRestoreInstanceState(Parcelable state) { 5386 if (!(state instanceof SavedState)) { 5387 super.onRestoreInstanceState(state); 5388 return; 5389 } 5390 5391 SavedState ss = (SavedState) state; 5392 super.onRestoreInstanceState(ss.getSuperState()); 5393 5394 // XXX restore buffer type too, as well as lots of other stuff 5395 if (ss.text != null) { 5396 setText(ss.text); 5397 } 5398 5399 if (ss.selStart >= 0 && ss.selEnd >= 0) { 5400 if (mSpannable != null) { 5401 int len = mText.length(); 5402 5403 if (ss.selStart > len || ss.selEnd > len) { 5404 String restored = ""; 5405 5406 if (ss.text != null) { 5407 restored = "(restored) "; 5408 } 5409 5410 Log.e(LOG_TAG, "Saved cursor position " + ss.selStart + "/" + ss.selEnd 5411 + " out of range for " + restored + "text " + mText); 5412 } else { 5413 Selection.setSelection(mSpannable, ss.selStart, ss.selEnd); 5414 5415 if (ss.frozenWithFocus) { 5416 createEditorIfNeeded(); 5417 mEditor.mFrozenWithFocus = true; 5418 } 5419 } 5420 } 5421 } 5422 5423 if (ss.error != null) { 5424 final CharSequence error = ss.error; 5425 // Display the error later, after the first layout pass 5426 post(new Runnable() { 5427 public void run() { 5428 if (mEditor == null || !mEditor.mErrorWasChanged) { 5429 setError(error); 5430 } 5431 } 5432 }); 5433 } 5434 5435 if (ss.editorState != null) { 5436 createEditorIfNeeded(); 5437 mEditor.restoreInstanceState(ss.editorState); 5438 } 5439 } 5440 5441 /** 5442 * Control whether this text view saves its entire text contents when 5443 * freezing to an icicle, in addition to dynamic state such as cursor 5444 * position. By default this is false, not saving the text. Set to true 5445 * if the text in the text view is not being saved somewhere else in 5446 * persistent storage (such as in a content provider) so that if the 5447 * view is later thawed the user will not lose their data. For 5448 * {@link android.widget.EditText} it is always enabled, regardless of 5449 * the value of the attribute. 5450 * 5451 * @param freezesText Controls whether a frozen icicle should include the 5452 * entire text data: true to include it, false to not. 5453 * 5454 * @attr ref android.R.styleable#TextView_freezesText 5455 */ 5456 @android.view.RemotableViewMethod 5457 public void setFreezesText(boolean freezesText) { 5458 mFreezesText = freezesText; 5459 } 5460 5461 /** 5462 * Return whether this text view is including its entire text contents 5463 * in frozen icicles. For {@link android.widget.EditText} it always returns true. 5464 * 5465 * @return Returns true if text is included, false if it isn't. 5466 * 5467 * @see #setFreezesText 5468 */ 5469 public boolean getFreezesText() { 5470 return mFreezesText; 5471 } 5472 5473 /////////////////////////////////////////////////////////////////////////// 5474 5475 /** 5476 * Sets the Factory used to create new {@link Editable Editables}. 5477 * 5478 * @param factory {@link android.text.Editable.Factory Editable.Factory} to be used 5479 * 5480 * @see android.text.Editable.Factory 5481 * @see android.widget.TextView.BufferType#EDITABLE 5482 */ 5483 public final void setEditableFactory(Editable.Factory factory) { 5484 mEditableFactory = factory; 5485 setText(mText); 5486 } 5487 5488 /** 5489 * Sets the Factory used to create new {@link Spannable Spannables}. 5490 * 5491 * @param factory {@link android.text.Spannable.Factory Spannable.Factory} to be used 5492 * 5493 * @see android.text.Spannable.Factory 5494 * @see android.widget.TextView.BufferType#SPANNABLE 5495 */ 5496 public final void setSpannableFactory(Spannable.Factory factory) { 5497 mSpannableFactory = factory; 5498 setText(mText); 5499 } 5500 5501 /** 5502 * Sets the text to be displayed. TextView <em>does not</em> accept 5503 * HTML-like formatting, which you can do with text strings in XML resource files. 5504 * To style your strings, attach android.text.style.* objects to a 5505 * {@link android.text.SpannableString}, or see the 5506 * <a href="{@docRoot}guide/topics/resources/available-resources.html#stringresources"> 5507 * Available Resource Types</a> documentation for an example of setting 5508 * formatted text in the XML resource file. 5509 * <p/> 5510 * When required, TextView will use {@link android.text.Spannable.Factory} to create final or 5511 * intermediate {@link Spannable Spannables}. Likewise it will use 5512 * {@link android.text.Editable.Factory} to create final or intermediate 5513 * {@link Editable Editables}. 5514 * 5515 * If the passed text is a {@link PrecomputedText} but the parameters used to create the 5516 * PrecomputedText mismatches with this TextView, IllegalArgumentException is thrown. To ensure 5517 * the parameters match, you can call {@link TextView#setTextMetricsParams} before calling this. 5518 * 5519 * @param text text to be displayed 5520 * 5521 * @attr ref android.R.styleable#TextView_text 5522 * @throws IllegalArgumentException if the passed text is a {@link PrecomputedText} but the 5523 * parameters used to create the PrecomputedText mismatches 5524 * with this TextView. 5525 */ 5526 @android.view.RemotableViewMethod 5527 public final void setText(CharSequence text) { 5528 setText(text, mBufferType); 5529 } 5530 5531 /** 5532 * Sets the text to be displayed but retains the cursor position. Same as 5533 * {@link #setText(CharSequence)} except that the cursor position (if any) is retained in the 5534 * new text. 5535 * <p/> 5536 * When required, TextView will use {@link android.text.Spannable.Factory} to create final or 5537 * intermediate {@link Spannable Spannables}. Likewise it will use 5538 * {@link android.text.Editable.Factory} to create final or intermediate 5539 * {@link Editable Editables}. 5540 * 5541 * @param text text to be displayed 5542 * 5543 * @see #setText(CharSequence) 5544 */ 5545 @android.view.RemotableViewMethod 5546 public final void setTextKeepState(CharSequence text) { 5547 setTextKeepState(text, mBufferType); 5548 } 5549 5550 /** 5551 * Sets the text to be displayed and the {@link android.widget.TextView.BufferType}. 5552 * <p/> 5553 * When required, TextView will use {@link android.text.Spannable.Factory} to create final or 5554 * intermediate {@link Spannable Spannables}. Likewise it will use 5555 * {@link android.text.Editable.Factory} to create final or intermediate 5556 * {@link Editable Editables}. 5557 * 5558 * @param text text to be displayed 5559 * @param type a {@link android.widget.TextView.BufferType} which defines whether the text is 5560 * stored as a static text, styleable/spannable text, or editable text 5561 * 5562 * @see #setText(CharSequence) 5563 * @see android.widget.TextView.BufferType 5564 * @see #setSpannableFactory(Spannable.Factory) 5565 * @see #setEditableFactory(Editable.Factory) 5566 * 5567 * @attr ref android.R.styleable#TextView_text 5568 * @attr ref android.R.styleable#TextView_bufferType 5569 */ 5570 public void setText(CharSequence text, BufferType type) { 5571 setText(text, type, true, 0); 5572 5573 if (mCharWrapper != null) { 5574 mCharWrapper.mChars = null; 5575 } 5576 } 5577 5578 private void setText(CharSequence text, BufferType type, 5579 boolean notifyBefore, int oldlen) { 5580 mTextSetFromXmlOrResourceId = false; 5581 if (text == null) { 5582 text = ""; 5583 } 5584 5585 // If suggestions are not enabled, remove the suggestion spans from the text 5586 if (!isSuggestionsEnabled()) { 5587 text = removeSuggestionSpans(text); 5588 } 5589 5590 if (!mUserSetTextScaleX) mTextPaint.setTextScaleX(1.0f); 5591 5592 if (text instanceof Spanned 5593 && ((Spanned) text).getSpanStart(TextUtils.TruncateAt.MARQUEE) >= 0) { 5594 if (ViewConfiguration.get(mContext).isFadingMarqueeEnabled()) { 5595 setHorizontalFadingEdgeEnabled(true); 5596 mMarqueeFadeMode = MARQUEE_FADE_NORMAL; 5597 } else { 5598 setHorizontalFadingEdgeEnabled(false); 5599 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS; 5600 } 5601 setEllipsize(TextUtils.TruncateAt.MARQUEE); 5602 } 5603 5604 int n = mFilters.length; 5605 for (int i = 0; i < n; i++) { 5606 CharSequence out = mFilters[i].filter(text, 0, text.length(), EMPTY_SPANNED, 0, 0); 5607 if (out != null) { 5608 text = out; 5609 } 5610 } 5611 5612 if (notifyBefore) { 5613 if (mText != null) { 5614 oldlen = mText.length(); 5615 sendBeforeTextChanged(mText, 0, oldlen, text.length()); 5616 } else { 5617 sendBeforeTextChanged("", 0, 0, text.length()); 5618 } 5619 } 5620 5621 boolean needEditableForNotification = false; 5622 5623 if (mListeners != null && mListeners.size() != 0) { 5624 needEditableForNotification = true; 5625 } 5626 5627 PrecomputedText precomputed = 5628 (text instanceof PrecomputedText) ? (PrecomputedText) text : null; 5629 if (type == BufferType.EDITABLE || getKeyListener() != null 5630 || needEditableForNotification) { 5631 createEditorIfNeeded(); 5632 mEditor.forgetUndoRedo(); 5633 Editable t = mEditableFactory.newEditable(text); 5634 text = t; 5635 setFilters(t, mFilters); 5636 InputMethodManager imm = InputMethodManager.peekInstance(); 5637 if (imm != null) imm.restartInput(this); 5638 } else if (precomputed != null) { 5639 if (mTextDir == null) { 5640 mTextDir = getTextDirectionHeuristic(); 5641 } 5642 if (!precomputed.getParams().isSameTextMetricsInternal( 5643 getPaint(), mTextDir, mBreakStrategy, mHyphenationFrequency)) { 5644 throw new IllegalArgumentException( 5645 "PrecomputedText's Parameters don't match the parameters of this TextView." 5646 + "Consider using setTextMetricsParams(precomputedText.getParams()) " 5647 + "to override the settings of this TextView: " 5648 + "PrecomputedText: " + precomputed.getParams() 5649 + "TextView: " + getTextMetricsParams()); 5650 } 5651 } else if (type == BufferType.SPANNABLE || mMovement != null) { 5652 text = mSpannableFactory.newSpannable(text); 5653 } else if (!(text instanceof CharWrapper)) { 5654 text = TextUtils.stringOrSpannedString(text); 5655 } 5656 5657 if (mAutoLinkMask != 0) { 5658 Spannable s2; 5659 5660 if (type == BufferType.EDITABLE || text instanceof Spannable) { 5661 s2 = (Spannable) text; 5662 } else { 5663 s2 = mSpannableFactory.newSpannable(text); 5664 } 5665 5666 if (Linkify.addLinks(s2, mAutoLinkMask)) { 5667 text = s2; 5668 type = (type == BufferType.EDITABLE) ? BufferType.EDITABLE : BufferType.SPANNABLE; 5669 5670 /* 5671 * We must go ahead and set the text before changing the 5672 * movement method, because setMovementMethod() may call 5673 * setText() again to try to upgrade the buffer type. 5674 */ 5675 setTextInternal(text); 5676 5677 // Do not change the movement method for text that support text selection as it 5678 // would prevent an arbitrary cursor displacement. 5679 if (mLinksClickable && !textCanBeSelected()) { 5680 setMovementMethod(LinkMovementMethod.getInstance()); 5681 } 5682 } 5683 } 5684 5685 mBufferType = type; 5686 setTextInternal(text); 5687 5688 if (mTransformation == null) { 5689 mTransformed = text; 5690 } else { 5691 mTransformed = mTransformation.getTransformation(text, this); 5692 } 5693 5694 final int textLength = text.length(); 5695 5696 if (text instanceof Spannable && !mAllowTransformationLengthChange) { 5697 Spannable sp = (Spannable) text; 5698 5699 // Remove any ChangeWatchers that might have come from other TextViews. 5700 final ChangeWatcher[] watchers = sp.getSpans(0, sp.length(), ChangeWatcher.class); 5701 final int count = watchers.length; 5702 for (int i = 0; i < count; i++) { 5703 sp.removeSpan(watchers[i]); 5704 } 5705 5706 if (mChangeWatcher == null) mChangeWatcher = new ChangeWatcher(); 5707 5708 sp.setSpan(mChangeWatcher, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE 5709 | (CHANGE_WATCHER_PRIORITY << Spanned.SPAN_PRIORITY_SHIFT)); 5710 5711 if (mEditor != null) mEditor.addSpanWatchers(sp); 5712 5713 if (mTransformation != null) { 5714 sp.setSpan(mTransformation, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE); 5715 } 5716 5717 if (mMovement != null) { 5718 mMovement.initialize(this, (Spannable) text); 5719 5720 /* 5721 * Initializing the movement method will have set the 5722 * selection, so reset mSelectionMoved to keep that from 5723 * interfering with the normal on-focus selection-setting. 5724 */ 5725 if (mEditor != null) mEditor.mSelectionMoved = false; 5726 } 5727 } 5728 5729 if (mLayout != null) { 5730 checkForRelayout(); 5731 } 5732 5733 sendOnTextChanged(text, 0, oldlen, textLength); 5734 onTextChanged(text, 0, oldlen, textLength); 5735 5736 notifyViewAccessibilityStateChangedIfNeeded(AccessibilityEvent.CONTENT_CHANGE_TYPE_TEXT); 5737 5738 if (needEditableForNotification) { 5739 sendAfterTextChanged((Editable) text); 5740 } else { 5741 notifyAutoFillManagerAfterTextChangedIfNeeded(); 5742 } 5743 5744 // SelectionModifierCursorController depends on textCanBeSelected, which depends on text 5745 if (mEditor != null) mEditor.prepareCursorControllers(); 5746 } 5747 5748 /** 5749 * Sets the TextView to display the specified slice of the specified 5750 * char array. You must promise that you will not change the contents 5751 * of the array except for right before another call to setText(), 5752 * since the TextView has no way to know that the text 5753 * has changed and that it needs to invalidate and re-layout. 5754 * 5755 * @param text char array to be displayed 5756 * @param start start index in the char array 5757 * @param len length of char count after {@code start} 5758 */ 5759 public final void setText(char[] text, int start, int len) { 5760 int oldlen = 0; 5761 5762 if (start < 0 || len < 0 || start + len > text.length) { 5763 throw new IndexOutOfBoundsException(start + ", " + len); 5764 } 5765 5766 /* 5767 * We must do the before-notification here ourselves because if 5768 * the old text is a CharWrapper we destroy it before calling 5769 * into the normal path. 5770 */ 5771 if (mText != null) { 5772 oldlen = mText.length(); 5773 sendBeforeTextChanged(mText, 0, oldlen, len); 5774 } else { 5775 sendBeforeTextChanged("", 0, 0, len); 5776 } 5777 5778 if (mCharWrapper == null) { 5779 mCharWrapper = new CharWrapper(text, start, len); 5780 } else { 5781 mCharWrapper.set(text, start, len); 5782 } 5783 5784 setText(mCharWrapper, mBufferType, false, oldlen); 5785 } 5786 5787 /** 5788 * Sets the text to be displayed and the {@link android.widget.TextView.BufferType} but retains 5789 * the cursor position. Same as 5790 * {@link #setText(CharSequence, android.widget.TextView.BufferType)} except that the cursor 5791 * position (if any) is retained in the new text. 5792 * <p/> 5793 * When required, TextView will use {@link android.text.Spannable.Factory} to create final or 5794 * intermediate {@link Spannable Spannables}. Likewise it will use 5795 * {@link android.text.Editable.Factory} to create final or intermediate 5796 * {@link Editable Editables}. 5797 * 5798 * @param text text to be displayed 5799 * @param type a {@link android.widget.TextView.BufferType} which defines whether the text is 5800 * stored as a static text, styleable/spannable text, or editable text 5801 * 5802 * @see #setText(CharSequence, android.widget.TextView.BufferType) 5803 */ 5804 public final void setTextKeepState(CharSequence text, BufferType type) { 5805 int start = getSelectionStart(); 5806 int end = getSelectionEnd(); 5807 int len = text.length(); 5808 5809 setText(text, type); 5810 5811 if (start >= 0 || end >= 0) { 5812 if (mSpannable != null) { 5813 Selection.setSelection(mSpannable, 5814 Math.max(0, Math.min(start, len)), 5815 Math.max(0, Math.min(end, len))); 5816 } 5817 } 5818 } 5819 5820 /** 5821 * Sets the text to be displayed using a string resource identifier. 5822 * 5823 * @param resid the resource identifier of the string resource to be displayed 5824 * 5825 * @see #setText(CharSequence) 5826 * 5827 * @attr ref android.R.styleable#TextView_text 5828 */ 5829 @android.view.RemotableViewMethod 5830 public final void setText(@StringRes int resid) { 5831 setText(getContext().getResources().getText(resid)); 5832 mTextSetFromXmlOrResourceId = true; 5833 mTextId = resid; 5834 } 5835 5836 /** 5837 * Sets the text to be displayed using a string resource identifier and the 5838 * {@link android.widget.TextView.BufferType}. 5839 * <p/> 5840 * When required, TextView will use {@link android.text.Spannable.Factory} to create final or 5841 * intermediate {@link Spannable Spannables}. Likewise it will use 5842 * {@link android.text.Editable.Factory} to create final or intermediate 5843 * {@link Editable Editables}. 5844 * 5845 * @param resid the resource identifier of the string resource to be displayed 5846 * @param type a {@link android.widget.TextView.BufferType} which defines whether the text is 5847 * stored as a static text, styleable/spannable text, or editable text 5848 * 5849 * @see #setText(int) 5850 * @see #setText(CharSequence) 5851 * @see android.widget.TextView.BufferType 5852 * @see #setSpannableFactory(Spannable.Factory) 5853 * @see #setEditableFactory(Editable.Factory) 5854 * 5855 * @attr ref android.R.styleable#TextView_text 5856 * @attr ref android.R.styleable#TextView_bufferType 5857 */ 5858 public final void setText(@StringRes int resid, BufferType type) { 5859 setText(getContext().getResources().getText(resid), type); 5860 mTextSetFromXmlOrResourceId = true; 5861 mTextId = resid; 5862 } 5863 5864 /** 5865 * Sets the text to be displayed when the text of the TextView is empty. 5866 * Null means to use the normal empty text. The hint does not currently 5867 * participate in determining the size of the view. 5868 * 5869 * @attr ref android.R.styleable#TextView_hint 5870 */ 5871 @android.view.RemotableViewMethod 5872 public final void setHint(CharSequence hint) { 5873 setHintInternal(hint); 5874 5875 if (mEditor != null && isInputMethodTarget()) { 5876 mEditor.reportExtractedText(); 5877 } 5878 } 5879 5880 private void setHintInternal(CharSequence hint) { 5881 mHint = TextUtils.stringOrSpannedString(hint); 5882 5883 if (mLayout != null) { 5884 checkForRelayout(); 5885 } 5886 5887 if (mText.length() == 0) { 5888 invalidate(); 5889 } 5890 5891 // Invalidate display list if hint is currently used 5892 if (mEditor != null && mText.length() == 0 && mHint != null) { 5893 mEditor.invalidateTextDisplayList(); 5894 } 5895 } 5896 5897 /** 5898 * Sets the text to be displayed when the text of the TextView is empty, 5899 * from a resource. 5900 * 5901 * @attr ref android.R.styleable#TextView_hint 5902 */ 5903 @android.view.RemotableViewMethod 5904 public final void setHint(@StringRes int resid) { 5905 setHint(getContext().getResources().getText(resid)); 5906 } 5907 5908 /** 5909 * Returns the hint that is displayed when the text of the TextView 5910 * is empty. 5911 * 5912 * @attr ref android.R.styleable#TextView_hint 5913 */ 5914 @ViewDebug.CapturedViewProperty 5915 public CharSequence getHint() { 5916 return mHint; 5917 } 5918 5919 boolean isSingleLine() { 5920 return mSingleLine; 5921 } 5922 5923 private static boolean isMultilineInputType(int type) { 5924 return (type & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE)) 5925 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE); 5926 } 5927 5928 /** 5929 * Removes the suggestion spans. 5930 */ 5931 CharSequence removeSuggestionSpans(CharSequence text) { 5932 if (text instanceof Spanned) { 5933 Spannable spannable; 5934 if (text instanceof Spannable) { 5935 spannable = (Spannable) text; 5936 } else { 5937 spannable = mSpannableFactory.newSpannable(text); 5938 } 5939 5940 SuggestionSpan[] spans = spannable.getSpans(0, text.length(), SuggestionSpan.class); 5941 if (spans.length == 0) { 5942 return text; 5943 } else { 5944 text = spannable; 5945 } 5946 5947 for (int i = 0; i < spans.length; i++) { 5948 spannable.removeSpan(spans[i]); 5949 } 5950 } 5951 return text; 5952 } 5953 5954 /** 5955 * Set the type of the content with a constant as defined for {@link EditorInfo#inputType}. This 5956 * will take care of changing the key listener, by calling {@link #setKeyListener(KeyListener)}, 5957 * to match the given content type. If the given content type is {@link EditorInfo#TYPE_NULL} 5958 * then a soft keyboard will not be displayed for this text view. 5959 * 5960 * Note that the maximum number of displayed lines (see {@link #setMaxLines(int)}) will be 5961 * modified if you change the {@link EditorInfo#TYPE_TEXT_FLAG_MULTI_LINE} flag of the input 5962 * type. 5963 * 5964 * @see #getInputType() 5965 * @see #setRawInputType(int) 5966 * @see android.text.InputType 5967 * @attr ref android.R.styleable#TextView_inputType 5968 */ 5969 public void setInputType(int type) { 5970 final boolean wasPassword = isPasswordInputType(getInputType()); 5971 final boolean wasVisiblePassword = isVisiblePasswordInputType(getInputType()); 5972 setInputType(type, false); 5973 final boolean isPassword = isPasswordInputType(type); 5974 final boolean isVisiblePassword = isVisiblePasswordInputType(type); 5975 boolean forceUpdate = false; 5976 if (isPassword) { 5977 setTransformationMethod(PasswordTransformationMethod.getInstance()); 5978 setTypefaceFromAttrs(null/* fontTypeface */, null /* fontFamily */, MONOSPACE, 5979 Typeface.NORMAL, -1 /* weight, not specifeid */); 5980 } else if (isVisiblePassword) { 5981 if (mTransformation == PasswordTransformationMethod.getInstance()) { 5982 forceUpdate = true; 5983 } 5984 setTypefaceFromAttrs(null/* fontTypeface */, null /* fontFamily */, MONOSPACE, 5985 Typeface.NORMAL, -1 /* weight, not specified */); 5986 } else if (wasPassword || wasVisiblePassword) { 5987 // not in password mode, clean up typeface and transformation 5988 setTypefaceFromAttrs(null/* fontTypeface */, null /* fontFamily */, 5989 DEFAULT_TYPEFACE /* typeface index */, Typeface.NORMAL, 5990 -1 /* weight, not specified */); 5991 if (mTransformation == PasswordTransformationMethod.getInstance()) { 5992 forceUpdate = true; 5993 } 5994 } 5995 5996 boolean singleLine = !isMultilineInputType(type); 5997 5998 // We need to update the single line mode if it has changed or we 5999 // were previously in password mode. 6000 if (mSingleLine != singleLine || forceUpdate) { 6001 // Change single line mode, but only change the transformation if 6002 // we are not in password mode. 6003 applySingleLine(singleLine, !isPassword, true); 6004 } 6005 6006 if (!isSuggestionsEnabled()) { 6007 setTextInternal(removeSuggestionSpans(mText)); 6008 } 6009 6010 InputMethodManager imm = InputMethodManager.peekInstance(); 6011 if (imm != null) imm.restartInput(this); 6012 } 6013 6014 /** 6015 * It would be better to rely on the input type for everything. A password inputType should have 6016 * a password transformation. We should hence use isPasswordInputType instead of this method. 6017 * 6018 * We should: 6019 * - Call setInputType in setKeyListener instead of changing the input type directly (which 6020 * would install the correct transformation). 6021 * - Refuse the installation of a non-password transformation in setTransformation if the input 6022 * type is password. 6023 * 6024 * However, this is like this for legacy reasons and we cannot break existing apps. This method 6025 * is useful since it matches what the user can see (obfuscated text or not). 6026 * 6027 * @return true if the current transformation method is of the password type. 6028 */ 6029 boolean hasPasswordTransformationMethod() { 6030 return mTransformation instanceof PasswordTransformationMethod; 6031 } 6032 6033 static boolean isPasswordInputType(int inputType) { 6034 final int variation = 6035 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 6036 return variation 6037 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD) 6038 || variation 6039 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD) 6040 || variation 6041 == (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD); 6042 } 6043 6044 private static boolean isVisiblePasswordInputType(int inputType) { 6045 final int variation = 6046 inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION); 6047 return variation 6048 == (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD); 6049 } 6050 6051 /** 6052 * Directly change the content type integer of the text view, without 6053 * modifying any other state. 6054 * @see #setInputType(int) 6055 * @see android.text.InputType 6056 * @attr ref android.R.styleable#TextView_inputType 6057 */ 6058 public void setRawInputType(int type) { 6059 if (type == InputType.TYPE_NULL && mEditor == null) return; //TYPE_NULL is the default value 6060 createEditorIfNeeded(); 6061 mEditor.mInputType = type; 6062 } 6063 6064 /** 6065 * @return {@code null} if the key listener should use pre-O (locale-independent). Otherwise 6066 * a {@code Locale} object that can be used to customize key various listeners. 6067 * @see DateKeyListener#getInstance(Locale) 6068 * @see DateTimeKeyListener#getInstance(Locale) 6069 * @see DigitsKeyListener#getInstance(Locale) 6070 * @see TimeKeyListener#getInstance(Locale) 6071 */ 6072 @Nullable 6073 private Locale getCustomLocaleForKeyListenerOrNull() { 6074 if (!mUseInternationalizedInput) { 6075 // If the application does not target O, stick to the previous behavior. 6076 return null; 6077 } 6078 final LocaleList locales = getImeHintLocales(); 6079 if (locales == null) { 6080 // If the application does not explicitly specify IME hint locale, also stick to the 6081 // previous behavior. 6082 return null; 6083 } 6084 return locales.get(0); 6085 } 6086 6087 private void setInputType(int type, boolean direct) { 6088 final int cls = type & EditorInfo.TYPE_MASK_CLASS; 6089 KeyListener input; 6090 if (cls == EditorInfo.TYPE_CLASS_TEXT) { 6091 boolean autotext = (type & EditorInfo.TYPE_TEXT_FLAG_AUTO_CORRECT) != 0; 6092 TextKeyListener.Capitalize cap; 6093 if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS) != 0) { 6094 cap = TextKeyListener.Capitalize.CHARACTERS; 6095 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS) != 0) { 6096 cap = TextKeyListener.Capitalize.WORDS; 6097 } else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES) != 0) { 6098 cap = TextKeyListener.Capitalize.SENTENCES; 6099 } else { 6100 cap = TextKeyListener.Capitalize.NONE; 6101 } 6102 input = TextKeyListener.getInstance(autotext, cap); 6103 } else if (cls == EditorInfo.TYPE_CLASS_NUMBER) { 6104 final Locale locale = getCustomLocaleForKeyListenerOrNull(); 6105 input = DigitsKeyListener.getInstance( 6106 locale, 6107 (type & EditorInfo.TYPE_NUMBER_FLAG_SIGNED) != 0, 6108 (type & EditorInfo.TYPE_NUMBER_FLAG_DECIMAL) != 0); 6109 if (locale != null) { 6110 // Override type, if necessary for i18n. 6111 int newType = input.getInputType(); 6112 final int newClass = newType & EditorInfo.TYPE_MASK_CLASS; 6113 if (newClass != EditorInfo.TYPE_CLASS_NUMBER) { 6114 // The class is different from the original class. So we need to override 6115 // 'type'. But we want to keep the password flag if it's there. 6116 if ((type & EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD) != 0) { 6117 newType |= EditorInfo.TYPE_TEXT_VARIATION_PASSWORD; 6118 } 6119 type = newType; 6120 } 6121 } 6122 } else if (cls == EditorInfo.TYPE_CLASS_DATETIME) { 6123 final Locale locale = getCustomLocaleForKeyListenerOrNull(); 6124 switch (type & EditorInfo.TYPE_MASK_VARIATION) { 6125 case EditorInfo.TYPE_DATETIME_VARIATION_DATE: 6126 input = DateKeyListener.getInstance(locale); 6127 break; 6128 case EditorInfo.TYPE_DATETIME_VARIATION_TIME: 6129 input = TimeKeyListener.getInstance(locale); 6130 break; 6131 default: 6132 input = DateTimeKeyListener.getInstance(locale); 6133 break; 6134 } 6135 if (mUseInternationalizedInput) { 6136 type = input.getInputType(); // Override type, if necessary for i18n. 6137 } 6138 } else if (cls == EditorInfo.TYPE_CLASS_PHONE) { 6139 input = DialerKeyListener.getInstance(); 6140 } else { 6141 input = TextKeyListener.getInstance(); 6142 } 6143 setRawInputType(type); 6144 mListenerChanged = false; 6145 if (direct) { 6146 createEditorIfNeeded(); 6147 mEditor.mKeyListener = input; 6148 } else { 6149 setKeyListenerOnly(input); 6150 } 6151 } 6152 6153 /** 6154 * Get the type of the editable content. 6155 * 6156 * @see #setInputType(int) 6157 * @see android.text.InputType 6158 */ 6159 public int getInputType() { 6160 return mEditor == null ? EditorInfo.TYPE_NULL : mEditor.mInputType; 6161 } 6162 6163 /** 6164 * Change the editor type integer associated with the text view, which 6165 * is reported to an Input Method Editor (IME) with {@link EditorInfo#imeOptions} 6166 * when it has focus. 6167 * @see #getImeOptions 6168 * @see android.view.inputmethod.EditorInfo 6169 * @attr ref android.R.styleable#TextView_imeOptions 6170 */ 6171 public void setImeOptions(int imeOptions) { 6172 createEditorIfNeeded(); 6173 mEditor.createInputContentTypeIfNeeded(); 6174 mEditor.mInputContentType.imeOptions = imeOptions; 6175 } 6176 6177 /** 6178 * Get the type of the Input Method Editor (IME). 6179 * @return the type of the IME 6180 * @see #setImeOptions(int) 6181 * @see android.view.inputmethod.EditorInfo 6182 */ 6183 public int getImeOptions() { 6184 return mEditor != null && mEditor.mInputContentType != null 6185 ? mEditor.mInputContentType.imeOptions : EditorInfo.IME_NULL; 6186 } 6187 6188 /** 6189 * Change the custom IME action associated with the text view, which 6190 * will be reported to an IME with {@link EditorInfo#actionLabel} 6191 * and {@link EditorInfo#actionId} when it has focus. 6192 * @see #getImeActionLabel 6193 * @see #getImeActionId 6194 * @see android.view.inputmethod.EditorInfo 6195 * @attr ref android.R.styleable#TextView_imeActionLabel 6196 * @attr ref android.R.styleable#TextView_imeActionId 6197 */ 6198 public void setImeActionLabel(CharSequence label, int actionId) { 6199 createEditorIfNeeded(); 6200 mEditor.createInputContentTypeIfNeeded(); 6201 mEditor.mInputContentType.imeActionLabel = label; 6202 mEditor.mInputContentType.imeActionId = actionId; 6203 } 6204 6205 /** 6206 * Get the IME action label previous set with {@link #setImeActionLabel}. 6207 * 6208 * @see #setImeActionLabel 6209 * @see android.view.inputmethod.EditorInfo 6210 */ 6211 public CharSequence getImeActionLabel() { 6212 return mEditor != null && mEditor.mInputContentType != null 6213 ? mEditor.mInputContentType.imeActionLabel : null; 6214 } 6215 6216 /** 6217 * Get the IME action ID previous set with {@link #setImeActionLabel}. 6218 * 6219 * @see #setImeActionLabel 6220 * @see android.view.inputmethod.EditorInfo 6221 */ 6222 public int getImeActionId() { 6223 return mEditor != null && mEditor.mInputContentType != null 6224 ? mEditor.mInputContentType.imeActionId : 0; 6225 } 6226 6227 /** 6228 * Set a special listener to be called when an action is performed 6229 * on the text view. This will be called when the enter key is pressed, 6230 * or when an action supplied to the IME is selected by the user. Setting 6231 * this means that the normal hard key event will not insert a newline 6232 * into the text view, even if it is multi-line; holding down the ALT 6233 * modifier will, however, allow the user to insert a newline character. 6234 */ 6235 public void setOnEditorActionListener(OnEditorActionListener l) { 6236 createEditorIfNeeded(); 6237 mEditor.createInputContentTypeIfNeeded(); 6238 mEditor.mInputContentType.onEditorActionListener = l; 6239 } 6240 6241 /** 6242 * Called when an attached input method calls 6243 * {@link InputConnection#performEditorAction(int) 6244 * InputConnection.performEditorAction()} 6245 * for this text view. The default implementation will call your action 6246 * listener supplied to {@link #setOnEditorActionListener}, or perform 6247 * a standard operation for {@link EditorInfo#IME_ACTION_NEXT 6248 * EditorInfo.IME_ACTION_NEXT}, {@link EditorInfo#IME_ACTION_PREVIOUS 6249 * EditorInfo.IME_ACTION_PREVIOUS}, or {@link EditorInfo#IME_ACTION_DONE 6250 * EditorInfo.IME_ACTION_DONE}. 6251 * 6252 * <p>For backwards compatibility, if no IME options have been set and the 6253 * text view would not normally advance focus on enter, then 6254 * the NEXT and DONE actions received here will be turned into an enter 6255 * key down/up pair to go through the normal key handling. 6256 * 6257 * @param actionCode The code of the action being performed. 6258 * 6259 * @see #setOnEditorActionListener 6260 */ 6261 public void onEditorAction(int actionCode) { 6262 final Editor.InputContentType ict = mEditor == null ? null : mEditor.mInputContentType; 6263 if (ict != null) { 6264 if (ict.onEditorActionListener != null) { 6265 if (ict.onEditorActionListener.onEditorAction(this, 6266 actionCode, null)) { 6267 return; 6268 } 6269 } 6270 6271 // This is the handling for some default action. 6272 // Note that for backwards compatibility we don't do this 6273 // default handling if explicit ime options have not been given, 6274 // instead turning this into the normal enter key codes that an 6275 // app may be expecting. 6276 if (actionCode == EditorInfo.IME_ACTION_NEXT) { 6277 View v = focusSearch(FOCUS_FORWARD); 6278 if (v != null) { 6279 if (!v.requestFocus(FOCUS_FORWARD)) { 6280 throw new IllegalStateException("focus search returned a view " 6281 + "that wasn't able to take focus!"); 6282 } 6283 } 6284 return; 6285 6286 } else if (actionCode == EditorInfo.IME_ACTION_PREVIOUS) { 6287 View v = focusSearch(FOCUS_BACKWARD); 6288 if (v != null) { 6289 if (!v.requestFocus(FOCUS_BACKWARD)) { 6290 throw new IllegalStateException("focus search returned a view " 6291 + "that wasn't able to take focus!"); 6292 } 6293 } 6294 return; 6295 6296 } else if (actionCode == EditorInfo.IME_ACTION_DONE) { 6297 InputMethodManager imm = InputMethodManager.peekInstance(); 6298 if (imm != null && imm.isActive(this)) { 6299 imm.hideSoftInputFromWindow(getWindowToken(), 0); 6300 } 6301 return; 6302 } 6303 } 6304 6305 ViewRootImpl viewRootImpl = getViewRootImpl(); 6306 if (viewRootImpl != null) { 6307 long eventTime = SystemClock.uptimeMillis(); 6308 viewRootImpl.dispatchKeyFromIme( 6309 new KeyEvent(eventTime, eventTime, 6310 KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER, 0, 0, 6311 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 6312 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 6313 | KeyEvent.FLAG_EDITOR_ACTION)); 6314 viewRootImpl.dispatchKeyFromIme( 6315 new KeyEvent(SystemClock.uptimeMillis(), eventTime, 6316 KeyEvent.ACTION_UP, KeyEvent.KEYCODE_ENTER, 0, 0, 6317 KeyCharacterMap.VIRTUAL_KEYBOARD, 0, 6318 KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE 6319 | KeyEvent.FLAG_EDITOR_ACTION)); 6320 } 6321 } 6322 6323 /** 6324 * Set the private content type of the text, which is the 6325 * {@link EditorInfo#privateImeOptions EditorInfo.privateImeOptions} 6326 * field that will be filled in when creating an input connection. 6327 * 6328 * @see #getPrivateImeOptions() 6329 * @see EditorInfo#privateImeOptions 6330 * @attr ref android.R.styleable#TextView_privateImeOptions 6331 */ 6332 public void setPrivateImeOptions(String type) { 6333 createEditorIfNeeded(); 6334 mEditor.createInputContentTypeIfNeeded(); 6335 mEditor.mInputContentType.privateImeOptions = type; 6336 } 6337 6338 /** 6339 * Get the private type of the content. 6340 * 6341 * @see #setPrivateImeOptions(String) 6342 * @see EditorInfo#privateImeOptions 6343 */ 6344 public String getPrivateImeOptions() { 6345 return mEditor != null && mEditor.mInputContentType != null 6346 ? mEditor.mInputContentType.privateImeOptions : null; 6347 } 6348 6349 /** 6350 * Set the extra input data of the text, which is the 6351 * {@link EditorInfo#extras TextBoxAttribute.extras} 6352 * Bundle that will be filled in when creating an input connection. The 6353 * given integer is the resource identifier of an XML resource holding an 6354 * {@link android.R.styleable#InputExtras <input-extras>} XML tree. 6355 * 6356 * @see #getInputExtras(boolean) 6357 * @see EditorInfo#extras 6358 * @attr ref android.R.styleable#TextView_editorExtras 6359 */ 6360 public void setInputExtras(@XmlRes int xmlResId) throws XmlPullParserException, IOException { 6361 createEditorIfNeeded(); 6362 XmlResourceParser parser = getResources().getXml(xmlResId); 6363 mEditor.createInputContentTypeIfNeeded(); 6364 mEditor.mInputContentType.extras = new Bundle(); 6365 getResources().parseBundleExtras(parser, mEditor.mInputContentType.extras); 6366 } 6367 6368 /** 6369 * Retrieve the input extras currently associated with the text view, which 6370 * can be viewed as well as modified. 6371 * 6372 * @param create If true, the extras will be created if they don't already 6373 * exist. Otherwise, null will be returned if none have been created. 6374 * @see #setInputExtras(int) 6375 * @see EditorInfo#extras 6376 * @attr ref android.R.styleable#TextView_editorExtras 6377 */ 6378 public Bundle getInputExtras(boolean create) { 6379 if (mEditor == null && !create) return null; 6380 createEditorIfNeeded(); 6381 if (mEditor.mInputContentType == null) { 6382 if (!create) return null; 6383 mEditor.createInputContentTypeIfNeeded(); 6384 } 6385 if (mEditor.mInputContentType.extras == null) { 6386 if (!create) return null; 6387 mEditor.mInputContentType.extras = new Bundle(); 6388 } 6389 return mEditor.mInputContentType.extras; 6390 } 6391 6392 /** 6393 * Change "hint" locales associated with the text view, which will be reported to an IME with 6394 * {@link EditorInfo#hintLocales} when it has focus. 6395 * 6396 * Starting with Android O, this also causes internationalized listeners to be created (or 6397 * change locale) based on the first locale in the input locale list. 6398 * 6399 * <p><strong>Note:</strong> If you want new "hint" to take effect immediately you need to 6400 * call {@link InputMethodManager#restartInput(View)}.</p> 6401 * @param hintLocales List of the languages that the user is supposed to switch to no matter 6402 * what input method subtype is currently used. Set {@code null} to clear the current "hint". 6403 * @see #getImeHintLocales() 6404 * @see android.view.inputmethod.EditorInfo#hintLocales 6405 */ 6406 public void setImeHintLocales(@Nullable LocaleList hintLocales) { 6407 createEditorIfNeeded(); 6408 mEditor.createInputContentTypeIfNeeded(); 6409 mEditor.mInputContentType.imeHintLocales = hintLocales; 6410 if (mUseInternationalizedInput) { 6411 changeListenerLocaleTo(hintLocales == null ? null : hintLocales.get(0)); 6412 } 6413 } 6414 6415 /** 6416 * @return The current languages list "hint". {@code null} when no "hint" is available. 6417 * @see #setImeHintLocales(LocaleList) 6418 * @see android.view.inputmethod.EditorInfo#hintLocales 6419 */ 6420 @Nullable 6421 public LocaleList getImeHintLocales() { 6422 if (mEditor == null) { 6423 return null; 6424 } 6425 if (mEditor.mInputContentType == null) { 6426 return null; 6427 } 6428 return mEditor.mInputContentType.imeHintLocales; 6429 } 6430 6431 /** 6432 * Returns the error message that was set to be displayed with 6433 * {@link #setError}, or <code>null</code> if no error was set 6434 * or if it the error was cleared by the widget after user input. 6435 */ 6436 public CharSequence getError() { 6437 return mEditor == null ? null : mEditor.mError; 6438 } 6439 6440 /** 6441 * Sets the right-hand compound drawable of the TextView to the "error" 6442 * icon and sets an error message that will be displayed in a popup when 6443 * the TextView has focus. The icon and error message will be reset to 6444 * null when any key events cause changes to the TextView's text. If the 6445 * <code>error</code> is <code>null</code>, the error message and icon 6446 * will be cleared. 6447 */ 6448 @android.view.RemotableViewMethod 6449 public void setError(CharSequence error) { 6450 if (error == null) { 6451 setError(null, null); 6452 } else { 6453 Drawable dr = getContext().getDrawable( 6454 com.android.internal.R.drawable.indicator_input_error); 6455 6456 dr.setBounds(0, 0, dr.getIntrinsicWidth(), dr.getIntrinsicHeight()); 6457 setError(error, dr); 6458 } 6459 } 6460 6461 /** 6462 * Sets the right-hand compound drawable of the TextView to the specified 6463 * icon and sets an error message that will be displayed in a popup when 6464 * the TextView has focus. The icon and error message will be reset to 6465 * null when any key events cause changes to the TextView's text. The 6466 * drawable must already have had {@link Drawable#setBounds} set on it. 6467 * If the <code>error</code> is <code>null</code>, the error message will 6468 * be cleared (and you should provide a <code>null</code> icon as well). 6469 */ 6470 public void setError(CharSequence error, Drawable icon) { 6471 createEditorIfNeeded(); 6472 mEditor.setError(error, icon); 6473 notifyViewAccessibilityStateChangedIfNeeded( 6474 AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED); 6475 } 6476 6477 @Override 6478 protected boolean setFrame(int l, int t, int r, int b) { 6479 boolean result = super.setFrame(l, t, r, b); 6480 6481 if (mEditor != null) mEditor.setFrame(); 6482 6483 restartMarqueeIfNeeded(); 6484 6485 return result; 6486 } 6487 6488 private void restartMarqueeIfNeeded() { 6489 if (mRestartMarquee && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 6490 mRestartMarquee = false; 6491 startMarquee(); 6492 } 6493 } 6494 6495 /** 6496 * Sets the list of input filters that will be used if the buffer is 6497 * Editable. Has no effect otherwise. 6498 * 6499 * @attr ref android.R.styleable#TextView_maxLength 6500 */ 6501 public void setFilters(InputFilter[] filters) { 6502 if (filters == null) { 6503 throw new IllegalArgumentException(); 6504 } 6505 6506 mFilters = filters; 6507 6508 if (mText instanceof Editable) { 6509 setFilters((Editable) mText, filters); 6510 } 6511 } 6512 6513 /** 6514 * Sets the list of input filters on the specified Editable, 6515 * and includes mInput in the list if it is an InputFilter. 6516 */ 6517 private void setFilters(Editable e, InputFilter[] filters) { 6518 if (mEditor != null) { 6519 final boolean undoFilter = mEditor.mUndoInputFilter != null; 6520 final boolean keyFilter = mEditor.mKeyListener instanceof InputFilter; 6521 int num = 0; 6522 if (undoFilter) num++; 6523 if (keyFilter) num++; 6524 if (num > 0) { 6525 InputFilter[] nf = new InputFilter[filters.length + num]; 6526 6527 System.arraycopy(filters, 0, nf, 0, filters.length); 6528 num = 0; 6529 if (undoFilter) { 6530 nf[filters.length] = mEditor.mUndoInputFilter; 6531 num++; 6532 } 6533 if (keyFilter) { 6534 nf[filters.length + num] = (InputFilter) mEditor.mKeyListener; 6535 } 6536 6537 e.setFilters(nf); 6538 return; 6539 } 6540 } 6541 e.setFilters(filters); 6542 } 6543 6544 /** 6545 * Returns the current list of input filters. 6546 * 6547 * @attr ref android.R.styleable#TextView_maxLength 6548 */ 6549 public InputFilter[] getFilters() { 6550 return mFilters; 6551 } 6552 6553 ///////////////////////////////////////////////////////////////////////// 6554 6555 private int getBoxHeight(Layout l) { 6556 Insets opticalInsets = isLayoutModeOptical(mParent) ? getOpticalInsets() : Insets.NONE; 6557 int padding = (l == mHintLayout) 6558 ? getCompoundPaddingTop() + getCompoundPaddingBottom() 6559 : getExtendedPaddingTop() + getExtendedPaddingBottom(); 6560 return getMeasuredHeight() - padding + opticalInsets.top + opticalInsets.bottom; 6561 } 6562 6563 int getVerticalOffset(boolean forceNormal) { 6564 int voffset = 0; 6565 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 6566 6567 Layout l = mLayout; 6568 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 6569 l = mHintLayout; 6570 } 6571 6572 if (gravity != Gravity.TOP) { 6573 int boxht = getBoxHeight(l); 6574 int textht = l.getHeight(); 6575 6576 if (textht < boxht) { 6577 if (gravity == Gravity.BOTTOM) { 6578 voffset = boxht - textht; 6579 } else { // (gravity == Gravity.CENTER_VERTICAL) 6580 voffset = (boxht - textht) >> 1; 6581 } 6582 } 6583 } 6584 return voffset; 6585 } 6586 6587 private int getBottomVerticalOffset(boolean forceNormal) { 6588 int voffset = 0; 6589 final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; 6590 6591 Layout l = mLayout; 6592 if (!forceNormal && mText.length() == 0 && mHintLayout != null) { 6593 l = mHintLayout; 6594 } 6595 6596 if (gravity != Gravity.BOTTOM) { 6597 int boxht = getBoxHeight(l); 6598 int textht = l.getHeight(); 6599 6600 if (textht < boxht) { 6601 if (gravity == Gravity.TOP) { 6602 voffset = boxht - textht; 6603 } else { // (gravity == Gravity.CENTER_VERTICAL) 6604 voffset = (boxht - textht) >> 1; 6605 } 6606 } 6607 } 6608 return voffset; 6609 } 6610 6611 void invalidateCursorPath() { 6612 if (mHighlightPathBogus) { 6613 invalidateCursor(); 6614 } else { 6615 final int horizontalPadding = getCompoundPaddingLeft(); 6616 final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true); 6617 6618 if (mEditor.mDrawableForCursor == null) { 6619 synchronized (TEMP_RECTF) { 6620 /* 6621 * The reason for this concern about the thickness of the 6622 * cursor and doing the floor/ceil on the coordinates is that 6623 * some EditTexts (notably textfields in the Browser) have 6624 * anti-aliased text where not all the characters are 6625 * necessarily at integer-multiple locations. This should 6626 * make sure the entire cursor gets invalidated instead of 6627 * sometimes missing half a pixel. 6628 */ 6629 float thick = (float) Math.ceil(mTextPaint.getStrokeWidth()); 6630 if (thick < 1.0f) { 6631 thick = 1.0f; 6632 } 6633 6634 thick /= 2.0f; 6635 6636 // mHighlightPath is guaranteed to be non null at that point. 6637 mHighlightPath.computeBounds(TEMP_RECTF, false); 6638 6639 invalidate((int) Math.floor(horizontalPadding + TEMP_RECTF.left - thick), 6640 (int) Math.floor(verticalPadding + TEMP_RECTF.top - thick), 6641 (int) Math.ceil(horizontalPadding + TEMP_RECTF.right + thick), 6642 (int) Math.ceil(verticalPadding + TEMP_RECTF.bottom + thick)); 6643 } 6644 } else { 6645 final Rect bounds = mEditor.mDrawableForCursor.getBounds(); 6646 invalidate(bounds.left + horizontalPadding, bounds.top + verticalPadding, 6647 bounds.right + horizontalPadding, bounds.bottom + verticalPadding); 6648 } 6649 } 6650 } 6651 6652 void invalidateCursor() { 6653 int where = getSelectionEnd(); 6654 6655 invalidateCursor(where, where, where); 6656 } 6657 6658 private void invalidateCursor(int a, int b, int c) { 6659 if (a >= 0 || b >= 0 || c >= 0) { 6660 int start = Math.min(Math.min(a, b), c); 6661 int end = Math.max(Math.max(a, b), c); 6662 invalidateRegion(start, end, true /* Also invalidates blinking cursor */); 6663 } 6664 } 6665 6666 /** 6667 * Invalidates the region of text enclosed between the start and end text offsets. 6668 */ 6669 void invalidateRegion(int start, int end, boolean invalidateCursor) { 6670 if (mLayout == null) { 6671 invalidate(); 6672 } else { 6673 int lineStart = mLayout.getLineForOffset(start); 6674 int top = mLayout.getLineTop(lineStart); 6675 6676 // This is ridiculous, but the descent from the line above 6677 // can hang down into the line we really want to redraw, 6678 // so we have to invalidate part of the line above to make 6679 // sure everything that needs to be redrawn really is. 6680 // (But not the whole line above, because that would cause 6681 // the same problem with the descenders on the line above it!) 6682 if (lineStart > 0) { 6683 top -= mLayout.getLineDescent(lineStart - 1); 6684 } 6685 6686 int lineEnd; 6687 6688 if (start == end) { 6689 lineEnd = lineStart; 6690 } else { 6691 lineEnd = mLayout.getLineForOffset(end); 6692 } 6693 6694 int bottom = mLayout.getLineBottom(lineEnd); 6695 6696 // mEditor can be null in case selection is set programmatically. 6697 if (invalidateCursor && mEditor != null && mEditor.mDrawableForCursor != null) { 6698 final Rect bounds = mEditor.mDrawableForCursor.getBounds(); 6699 top = Math.min(top, bounds.top); 6700 bottom = Math.max(bottom, bounds.bottom); 6701 } 6702 6703 final int compoundPaddingLeft = getCompoundPaddingLeft(); 6704 final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true); 6705 6706 int left, right; 6707 if (lineStart == lineEnd && !invalidateCursor) { 6708 left = (int) mLayout.getPrimaryHorizontal(start); 6709 right = (int) (mLayout.getPrimaryHorizontal(end) + 1.0); 6710 left += compoundPaddingLeft; 6711 right += compoundPaddingLeft; 6712 } else { 6713 // Rectangle bounding box when the region spans several lines 6714 left = compoundPaddingLeft; 6715 right = getWidth() - getCompoundPaddingRight(); 6716 } 6717 6718 invalidate(mScrollX + left, verticalPadding + top, 6719 mScrollX + right, verticalPadding + bottom); 6720 } 6721 } 6722 6723 private void registerForPreDraw() { 6724 if (!mPreDrawRegistered) { 6725 getViewTreeObserver().addOnPreDrawListener(this); 6726 mPreDrawRegistered = true; 6727 } 6728 } 6729 6730 private void unregisterForPreDraw() { 6731 getViewTreeObserver().removeOnPreDrawListener(this); 6732 mPreDrawRegistered = false; 6733 mPreDrawListenerDetached = false; 6734 } 6735 6736 /** 6737 * {@inheritDoc} 6738 */ 6739 @Override 6740 public boolean onPreDraw() { 6741 if (mLayout == null) { 6742 assumeLayout(); 6743 } 6744 6745 if (mMovement != null) { 6746 /* This code also provides auto-scrolling when a cursor is moved using a 6747 * CursorController (insertion point or selection limits). 6748 * For selection, ensure start or end is visible depending on controller's state. 6749 */ 6750 int curs = getSelectionEnd(); 6751 // Do not create the controller if it is not already created. 6752 if (mEditor != null && mEditor.mSelectionModifierCursorController != null 6753 && mEditor.mSelectionModifierCursorController.isSelectionStartDragged()) { 6754 curs = getSelectionStart(); 6755 } 6756 6757 /* 6758 * TODO: This should really only keep the end in view if 6759 * it already was before the text changed. I'm not sure 6760 * of a good way to tell from here if it was. 6761 */ 6762 if (curs < 0 && (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 6763 curs = mText.length(); 6764 } 6765 6766 if (curs >= 0) { 6767 bringPointIntoView(curs); 6768 } 6769 } else { 6770 bringTextIntoView(); 6771 } 6772 6773 // This has to be checked here since: 6774 // - onFocusChanged cannot start it when focus is given to a view with selected text (after 6775 // a screen rotation) since layout is not yet initialized at that point. 6776 if (mEditor != null && mEditor.mCreatedWithASelection) { 6777 mEditor.refreshTextActionMode(); 6778 mEditor.mCreatedWithASelection = false; 6779 } 6780 6781 unregisterForPreDraw(); 6782 6783 return true; 6784 } 6785 6786 @Override 6787 protected void onAttachedToWindow() { 6788 super.onAttachedToWindow(); 6789 6790 if (mEditor != null) mEditor.onAttachedToWindow(); 6791 6792 if (mPreDrawListenerDetached) { 6793 getViewTreeObserver().addOnPreDrawListener(this); 6794 mPreDrawListenerDetached = false; 6795 } 6796 } 6797 6798 /** @hide */ 6799 @Override 6800 protected void onDetachedFromWindowInternal() { 6801 if (mPreDrawRegistered) { 6802 getViewTreeObserver().removeOnPreDrawListener(this); 6803 mPreDrawListenerDetached = true; 6804 } 6805 6806 resetResolvedDrawables(); 6807 6808 if (mEditor != null) mEditor.onDetachedFromWindow(); 6809 6810 super.onDetachedFromWindowInternal(); 6811 } 6812 6813 @Override 6814 public void onScreenStateChanged(int screenState) { 6815 super.onScreenStateChanged(screenState); 6816 if (mEditor != null) mEditor.onScreenStateChanged(screenState); 6817 } 6818 6819 @Override 6820 protected boolean isPaddingOffsetRequired() { 6821 return mShadowRadius != 0 || mDrawables != null; 6822 } 6823 6824 @Override 6825 protected int getLeftPaddingOffset() { 6826 return getCompoundPaddingLeft() - mPaddingLeft 6827 + (int) Math.min(0, mShadowDx - mShadowRadius); 6828 } 6829 6830 @Override 6831 protected int getTopPaddingOffset() { 6832 return (int) Math.min(0, mShadowDy - mShadowRadius); 6833 } 6834 6835 @Override 6836 protected int getBottomPaddingOffset() { 6837 return (int) Math.max(0, mShadowDy + mShadowRadius); 6838 } 6839 6840 @Override 6841 protected int getRightPaddingOffset() { 6842 return -(getCompoundPaddingRight() - mPaddingRight) 6843 + (int) Math.max(0, mShadowDx + mShadowRadius); 6844 } 6845 6846 @Override 6847 protected boolean verifyDrawable(@NonNull Drawable who) { 6848 final boolean verified = super.verifyDrawable(who); 6849 if (!verified && mDrawables != null) { 6850 for (Drawable dr : mDrawables.mShowing) { 6851 if (who == dr) { 6852 return true; 6853 } 6854 } 6855 } 6856 return verified; 6857 } 6858 6859 @Override 6860 public void jumpDrawablesToCurrentState() { 6861 super.jumpDrawablesToCurrentState(); 6862 if (mDrawables != null) { 6863 for (Drawable dr : mDrawables.mShowing) { 6864 if (dr != null) { 6865 dr.jumpToCurrentState(); 6866 } 6867 } 6868 } 6869 } 6870 6871 @Override 6872 public void invalidateDrawable(@NonNull Drawable drawable) { 6873 boolean handled = false; 6874 6875 if (verifyDrawable(drawable)) { 6876 final Rect dirty = drawable.getBounds(); 6877 int scrollX = mScrollX; 6878 int scrollY = mScrollY; 6879 6880 // IMPORTANT: The coordinates below are based on the coordinates computed 6881 // for each compound drawable in onDraw(). Make sure to update each section 6882 // accordingly. 6883 final TextView.Drawables drawables = mDrawables; 6884 if (drawables != null) { 6885 if (drawable == drawables.mShowing[Drawables.LEFT]) { 6886 final int compoundPaddingTop = getCompoundPaddingTop(); 6887 final int compoundPaddingBottom = getCompoundPaddingBottom(); 6888 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 6889 6890 scrollX += mPaddingLeft; 6891 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightLeft) / 2; 6892 handled = true; 6893 } else if (drawable == drawables.mShowing[Drawables.RIGHT]) { 6894 final int compoundPaddingTop = getCompoundPaddingTop(); 6895 final int compoundPaddingBottom = getCompoundPaddingBottom(); 6896 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 6897 6898 scrollX += (mRight - mLeft - mPaddingRight - drawables.mDrawableSizeRight); 6899 scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightRight) / 2; 6900 handled = true; 6901 } else if (drawable == drawables.mShowing[Drawables.TOP]) { 6902 final int compoundPaddingLeft = getCompoundPaddingLeft(); 6903 final int compoundPaddingRight = getCompoundPaddingRight(); 6904 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 6905 6906 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthTop) / 2; 6907 scrollY += mPaddingTop; 6908 handled = true; 6909 } else if (drawable == drawables.mShowing[Drawables.BOTTOM]) { 6910 final int compoundPaddingLeft = getCompoundPaddingLeft(); 6911 final int compoundPaddingRight = getCompoundPaddingRight(); 6912 final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft; 6913 6914 scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthBottom) / 2; 6915 scrollY += (mBottom - mTop - mPaddingBottom - drawables.mDrawableSizeBottom); 6916 handled = true; 6917 } 6918 } 6919 6920 if (handled) { 6921 invalidate(dirty.left + scrollX, dirty.top + scrollY, 6922 dirty.right + scrollX, dirty.bottom + scrollY); 6923 } 6924 } 6925 6926 if (!handled) { 6927 super.invalidateDrawable(drawable); 6928 } 6929 } 6930 6931 @Override 6932 public boolean hasOverlappingRendering() { 6933 // horizontal fading edge causes SaveLayerAlpha, which doesn't support alpha modulation 6934 return ((getBackground() != null && getBackground().getCurrent() != null) 6935 || mSpannable != null || hasSelection() || isHorizontalFadingEdgeEnabled()); 6936 } 6937 6938 /** 6939 * 6940 * Returns the state of the {@code textIsSelectable} flag (See 6941 * {@link #setTextIsSelectable setTextIsSelectable()}). Although you have to set this flag 6942 * to allow users to select and copy text in a non-editable TextView, the content of an 6943 * {@link EditText} can always be selected, independently of the value of this flag. 6944 * <p> 6945 * 6946 * @return True if the text displayed in this TextView can be selected by the user. 6947 * 6948 * @attr ref android.R.styleable#TextView_textIsSelectable 6949 */ 6950 public boolean isTextSelectable() { 6951 return mEditor == null ? false : mEditor.mTextIsSelectable; 6952 } 6953 6954 /** 6955 * Sets whether the content of this view is selectable by the user. The default is 6956 * {@code false}, meaning that the content is not selectable. 6957 * <p> 6958 * When you use a TextView to display a useful piece of information to the user (such as a 6959 * contact's address), make it selectable, so that the user can select and copy its 6960 * content. You can also use set the XML attribute 6961 * {@link android.R.styleable#TextView_textIsSelectable} to "true". 6962 * <p> 6963 * When you call this method to set the value of {@code textIsSelectable}, it sets 6964 * the flags {@code focusable}, {@code focusableInTouchMode}, {@code clickable}, 6965 * and {@code longClickable} to the same value. These flags correspond to the attributes 6966 * {@link android.R.styleable#View_focusable android:focusable}, 6967 * {@link android.R.styleable#View_focusableInTouchMode android:focusableInTouchMode}, 6968 * {@link android.R.styleable#View_clickable android:clickable}, and 6969 * {@link android.R.styleable#View_longClickable android:longClickable}. To restore any of these 6970 * flags to a state you had set previously, call one or more of the following methods: 6971 * {@link #setFocusable(boolean) setFocusable()}, 6972 * {@link #setFocusableInTouchMode(boolean) setFocusableInTouchMode()}, 6973 * {@link #setClickable(boolean) setClickable()} or 6974 * {@link #setLongClickable(boolean) setLongClickable()}. 6975 * 6976 * @param selectable Whether the content of this TextView should be selectable. 6977 */ 6978 public void setTextIsSelectable(boolean selectable) { 6979 if (!selectable && mEditor == null) return; // false is default value with no edit data 6980 6981 createEditorIfNeeded(); 6982 if (mEditor.mTextIsSelectable == selectable) return; 6983 6984 mEditor.mTextIsSelectable = selectable; 6985 setFocusableInTouchMode(selectable); 6986 setFocusable(FOCUSABLE_AUTO); 6987 setClickable(selectable); 6988 setLongClickable(selectable); 6989 6990 // mInputType should already be EditorInfo.TYPE_NULL and mInput should be null 6991 6992 setMovementMethod(selectable ? ArrowKeyMovementMethod.getInstance() : null); 6993 setText(mText, selectable ? BufferType.SPANNABLE : BufferType.NORMAL); 6994 6995 // Called by setText above, but safer in case of future code changes 6996 mEditor.prepareCursorControllers(); 6997 } 6998 6999 @Override 7000 protected int[] onCreateDrawableState(int extraSpace) { 7001 final int[] drawableState; 7002 7003 if (mSingleLine) { 7004 drawableState = super.onCreateDrawableState(extraSpace); 7005 } else { 7006 drawableState = super.onCreateDrawableState(extraSpace + 1); 7007 mergeDrawableStates(drawableState, MULTILINE_STATE_SET); 7008 } 7009 7010 if (isTextSelectable()) { 7011 // Disable pressed state, which was introduced when TextView was made clickable. 7012 // Prevents text color change. 7013 // setClickable(false) would have a similar effect, but it also disables focus changes 7014 // and long press actions, which are both needed by text selection. 7015 final int length = drawableState.length; 7016 for (int i = 0; i < length; i++) { 7017 if (drawableState[i] == R.attr.state_pressed) { 7018 final int[] nonPressedState = new int[length - 1]; 7019 System.arraycopy(drawableState, 0, nonPressedState, 0, i); 7020 System.arraycopy(drawableState, i + 1, nonPressedState, i, length - i - 1); 7021 return nonPressedState; 7022 } 7023 } 7024 } 7025 7026 return drawableState; 7027 } 7028 7029 private Path getUpdatedHighlightPath() { 7030 Path highlight = null; 7031 Paint highlightPaint = mHighlightPaint; 7032 7033 final int selStart = getSelectionStart(); 7034 final int selEnd = getSelectionEnd(); 7035 if (mMovement != null && (isFocused() || isPressed()) && selStart >= 0) { 7036 if (selStart == selEnd) { 7037 if (mEditor != null && mEditor.shouldRenderCursor()) { 7038 if (mHighlightPathBogus) { 7039 if (mHighlightPath == null) mHighlightPath = new Path(); 7040 mHighlightPath.reset(); 7041 mLayout.getCursorPath(selStart, mHighlightPath, mText); 7042 mEditor.updateCursorPosition(); 7043 mHighlightPathBogus = false; 7044 } 7045 7046 // XXX should pass to skin instead of drawing directly 7047 highlightPaint.setColor(mCurTextColor); 7048 highlightPaint.setStyle(Paint.Style.STROKE); 7049 highlight = mHighlightPath; 7050 } 7051 } else { 7052 if (mHighlightPathBogus) { 7053 if (mHighlightPath == null) mHighlightPath = new Path(); 7054 mHighlightPath.reset(); 7055 mLayout.getSelectionPath(selStart, selEnd, mHighlightPath); 7056 mHighlightPathBogus = false; 7057 } 7058 7059 // XXX should pass to skin instead of drawing directly 7060 highlightPaint.setColor(mHighlightColor); 7061 highlightPaint.setStyle(Paint.Style.FILL); 7062 7063 highlight = mHighlightPath; 7064 } 7065 } 7066 return highlight; 7067 } 7068 7069 /** 7070 * @hide 7071 */ 7072 public int getHorizontalOffsetForDrawables() { 7073 return 0; 7074 } 7075 7076 @Override 7077 protected void onDraw(Canvas canvas) { 7078 restartMarqueeIfNeeded(); 7079 7080 // Draw the background for this view 7081 super.onDraw(canvas); 7082 7083 final int compoundPaddingLeft = getCompoundPaddingLeft(); 7084 final int compoundPaddingTop = getCompoundPaddingTop(); 7085 final int compoundPaddingRight = getCompoundPaddingRight(); 7086 final int compoundPaddingBottom = getCompoundPaddingBottom(); 7087 final int scrollX = mScrollX; 7088 final int scrollY = mScrollY; 7089 final int right = mRight; 7090 final int left = mLeft; 7091 final int bottom = mBottom; 7092 final int top = mTop; 7093 final boolean isLayoutRtl = isLayoutRtl(); 7094 final int offset = getHorizontalOffsetForDrawables(); 7095 final int leftOffset = isLayoutRtl ? 0 : offset; 7096 final int rightOffset = isLayoutRtl ? offset : 0; 7097 7098 final Drawables dr = mDrawables; 7099 if (dr != null) { 7100 /* 7101 * Compound, not extended, because the icon is not clipped 7102 * if the text height is smaller. 7103 */ 7104 7105 int vspace = bottom - top - compoundPaddingBottom - compoundPaddingTop; 7106 int hspace = right - left - compoundPaddingRight - compoundPaddingLeft; 7107 7108 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 7109 // Make sure to update invalidateDrawable() when changing this code. 7110 if (dr.mShowing[Drawables.LEFT] != null) { 7111 canvas.save(); 7112 canvas.translate(scrollX + mPaddingLeft + leftOffset, 7113 scrollY + compoundPaddingTop + (vspace - dr.mDrawableHeightLeft) / 2); 7114 dr.mShowing[Drawables.LEFT].draw(canvas); 7115 canvas.restore(); 7116 } 7117 7118 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 7119 // Make sure to update invalidateDrawable() when changing this code. 7120 if (dr.mShowing[Drawables.RIGHT] != null) { 7121 canvas.save(); 7122 canvas.translate(scrollX + right - left - mPaddingRight 7123 - dr.mDrawableSizeRight - rightOffset, 7124 scrollY + compoundPaddingTop + (vspace - dr.mDrawableHeightRight) / 2); 7125 dr.mShowing[Drawables.RIGHT].draw(canvas); 7126 canvas.restore(); 7127 } 7128 7129 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 7130 // Make sure to update invalidateDrawable() when changing this code. 7131 if (dr.mShowing[Drawables.TOP] != null) { 7132 canvas.save(); 7133 canvas.translate(scrollX + compoundPaddingLeft 7134 + (hspace - dr.mDrawableWidthTop) / 2, scrollY + mPaddingTop); 7135 dr.mShowing[Drawables.TOP].draw(canvas); 7136 canvas.restore(); 7137 } 7138 7139 // IMPORTANT: The coordinates computed are also used in invalidateDrawable() 7140 // Make sure to update invalidateDrawable() when changing this code. 7141 if (dr.mShowing[Drawables.BOTTOM] != null) { 7142 canvas.save(); 7143 canvas.translate(scrollX + compoundPaddingLeft 7144 + (hspace - dr.mDrawableWidthBottom) / 2, 7145 scrollY + bottom - top - mPaddingBottom - dr.mDrawableSizeBottom); 7146 dr.mShowing[Drawables.BOTTOM].draw(canvas); 7147 canvas.restore(); 7148 } 7149 } 7150 7151 int color = mCurTextColor; 7152 7153 if (mLayout == null) { 7154 assumeLayout(); 7155 } 7156 7157 Layout layout = mLayout; 7158 7159 if (mHint != null && mText.length() == 0) { 7160 if (mHintTextColor != null) { 7161 color = mCurHintTextColor; 7162 } 7163 7164 layout = mHintLayout; 7165 } 7166 7167 mTextPaint.setColor(color); 7168 mTextPaint.drawableState = getDrawableState(); 7169 7170 canvas.save(); 7171 /* Would be faster if we didn't have to do this. Can we chop the 7172 (displayable) text so that we don't need to do this ever? 7173 */ 7174 7175 int extendedPaddingTop = getExtendedPaddingTop(); 7176 int extendedPaddingBottom = getExtendedPaddingBottom(); 7177 7178 final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop; 7179 final int maxScrollY = mLayout.getHeight() - vspace; 7180 7181 float clipLeft = compoundPaddingLeft + scrollX; 7182 float clipTop = (scrollY == 0) ? 0 : extendedPaddingTop + scrollY; 7183 float clipRight = right - left - getCompoundPaddingRight() + scrollX; 7184 float clipBottom = bottom - top + scrollY 7185 - ((scrollY == maxScrollY) ? 0 : extendedPaddingBottom); 7186 7187 if (mShadowRadius != 0) { 7188 clipLeft += Math.min(0, mShadowDx - mShadowRadius); 7189 clipRight += Math.max(0, mShadowDx + mShadowRadius); 7190 7191 clipTop += Math.min(0, mShadowDy - mShadowRadius); 7192 clipBottom += Math.max(0, mShadowDy + mShadowRadius); 7193 } 7194 7195 canvas.clipRect(clipLeft, clipTop, clipRight, clipBottom); 7196 7197 int voffsetText = 0; 7198 int voffsetCursor = 0; 7199 7200 // translate in by our padding 7201 /* shortcircuit calling getVerticaOffset() */ 7202 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 7203 voffsetText = getVerticalOffset(false); 7204 voffsetCursor = getVerticalOffset(true); 7205 } 7206 canvas.translate(compoundPaddingLeft, extendedPaddingTop + voffsetText); 7207 7208 final int layoutDirection = getLayoutDirection(); 7209 final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection); 7210 if (isMarqueeFadeEnabled()) { 7211 if (!mSingleLine && getLineCount() == 1 && canMarquee() 7212 && (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) != Gravity.LEFT) { 7213 final int width = mRight - mLeft; 7214 final int padding = getCompoundPaddingLeft() + getCompoundPaddingRight(); 7215 final float dx = mLayout.getLineRight(0) - (width - padding); 7216 canvas.translate(layout.getParagraphDirection(0) * dx, 0.0f); 7217 } 7218 7219 if (mMarquee != null && mMarquee.isRunning()) { 7220 final float dx = -mMarquee.getScroll(); 7221 canvas.translate(layout.getParagraphDirection(0) * dx, 0.0f); 7222 } 7223 } 7224 7225 final int cursorOffsetVertical = voffsetCursor - voffsetText; 7226 7227 Path highlight = getUpdatedHighlightPath(); 7228 if (mEditor != null) { 7229 mEditor.onDraw(canvas, layout, highlight, mHighlightPaint, cursorOffsetVertical); 7230 } else { 7231 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 7232 } 7233 7234 if (mMarquee != null && mMarquee.shouldDrawGhost()) { 7235 final float dx = mMarquee.getGhostOffset(); 7236 canvas.translate(layout.getParagraphDirection(0) * dx, 0.0f); 7237 layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical); 7238 } 7239 7240 canvas.restore(); 7241 } 7242 7243 @Override 7244 public void getFocusedRect(Rect r) { 7245 if (mLayout == null) { 7246 super.getFocusedRect(r); 7247 return; 7248 } 7249 7250 int selEnd = getSelectionEnd(); 7251 if (selEnd < 0) { 7252 super.getFocusedRect(r); 7253 return; 7254 } 7255 7256 int selStart = getSelectionStart(); 7257 if (selStart < 0 || selStart >= selEnd) { 7258 int line = mLayout.getLineForOffset(selEnd); 7259 r.top = mLayout.getLineTop(line); 7260 r.bottom = mLayout.getLineBottom(line); 7261 r.left = (int) mLayout.getPrimaryHorizontal(selEnd) - 2; 7262 r.right = r.left + 4; 7263 } else { 7264 int lineStart = mLayout.getLineForOffset(selStart); 7265 int lineEnd = mLayout.getLineForOffset(selEnd); 7266 r.top = mLayout.getLineTop(lineStart); 7267 r.bottom = mLayout.getLineBottom(lineEnd); 7268 if (lineStart == lineEnd) { 7269 r.left = (int) mLayout.getPrimaryHorizontal(selStart); 7270 r.right = (int) mLayout.getPrimaryHorizontal(selEnd); 7271 } else { 7272 // Selection extends across multiple lines -- make the focused 7273 // rect cover the entire width. 7274 if (mHighlightPathBogus) { 7275 if (mHighlightPath == null) mHighlightPath = new Path(); 7276 mHighlightPath.reset(); 7277 mLayout.getSelectionPath(selStart, selEnd, mHighlightPath); 7278 mHighlightPathBogus = false; 7279 } 7280 synchronized (TEMP_RECTF) { 7281 mHighlightPath.computeBounds(TEMP_RECTF, true); 7282 r.left = (int) TEMP_RECTF.left - 1; 7283 r.right = (int) TEMP_RECTF.right + 1; 7284 } 7285 } 7286 } 7287 7288 // Adjust for padding and gravity. 7289 int paddingLeft = getCompoundPaddingLeft(); 7290 int paddingTop = getExtendedPaddingTop(); 7291 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 7292 paddingTop += getVerticalOffset(false); 7293 } 7294 r.offset(paddingLeft, paddingTop); 7295 int paddingBottom = getExtendedPaddingBottom(); 7296 r.bottom += paddingBottom; 7297 } 7298 7299 /** 7300 * Return the number of lines of text, or 0 if the internal Layout has not 7301 * been built. 7302 */ 7303 public int getLineCount() { 7304 return mLayout != null ? mLayout.getLineCount() : 0; 7305 } 7306 7307 /** 7308 * Return the baseline for the specified line (0...getLineCount() - 1) 7309 * If bounds is not null, return the top, left, right, bottom extents 7310 * of the specified line in it. If the internal Layout has not been built, 7311 * return 0 and set bounds to (0, 0, 0, 0) 7312 * @param line which line to examine (0..getLineCount() - 1) 7313 * @param bounds Optional. If not null, it returns the extent of the line 7314 * @return the Y-coordinate of the baseline 7315 */ 7316 public int getLineBounds(int line, Rect bounds) { 7317 if (mLayout == null) { 7318 if (bounds != null) { 7319 bounds.set(0, 0, 0, 0); 7320 } 7321 return 0; 7322 } else { 7323 int baseline = mLayout.getLineBounds(line, bounds); 7324 7325 int voffset = getExtendedPaddingTop(); 7326 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 7327 voffset += getVerticalOffset(true); 7328 } 7329 if (bounds != null) { 7330 bounds.offset(getCompoundPaddingLeft(), voffset); 7331 } 7332 return baseline + voffset; 7333 } 7334 } 7335 7336 @Override 7337 public int getBaseline() { 7338 if (mLayout == null) { 7339 return super.getBaseline(); 7340 } 7341 7342 return getBaselineOffset() + mLayout.getLineBaseline(0); 7343 } 7344 7345 int getBaselineOffset() { 7346 int voffset = 0; 7347 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 7348 voffset = getVerticalOffset(true); 7349 } 7350 7351 if (isLayoutModeOptical(mParent)) { 7352 voffset -= getOpticalInsets().top; 7353 } 7354 7355 return getExtendedPaddingTop() + voffset; 7356 } 7357 7358 /** 7359 * @hide 7360 */ 7361 @Override 7362 protected int getFadeTop(boolean offsetRequired) { 7363 if (mLayout == null) return 0; 7364 7365 int voffset = 0; 7366 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 7367 voffset = getVerticalOffset(true); 7368 } 7369 7370 if (offsetRequired) voffset += getTopPaddingOffset(); 7371 7372 return getExtendedPaddingTop() + voffset; 7373 } 7374 7375 /** 7376 * @hide 7377 */ 7378 @Override 7379 protected int getFadeHeight(boolean offsetRequired) { 7380 return mLayout != null ? mLayout.getHeight() : 0; 7381 } 7382 7383 @Override 7384 public PointerIcon onResolvePointerIcon(MotionEvent event, int pointerIndex) { 7385 if (mSpannable != null && mLinksClickable) { 7386 final float x = event.getX(pointerIndex); 7387 final float y = event.getY(pointerIndex); 7388 final int offset = getOffsetForPosition(x, y); 7389 final ClickableSpan[] clickables = mSpannable.getSpans(offset, offset, 7390 ClickableSpan.class); 7391 if (clickables.length > 0) { 7392 return PointerIcon.getSystemIcon(mContext, PointerIcon.TYPE_HAND); 7393 } 7394 } 7395 if (isTextSelectable() || isTextEditable()) { 7396 return PointerIcon.getSystemIcon(mContext, PointerIcon.TYPE_TEXT); 7397 } 7398 return super.onResolvePointerIcon(event, pointerIndex); 7399 } 7400 7401 @Override 7402 public boolean onKeyPreIme(int keyCode, KeyEvent event) { 7403 // Note: If the IME is in fullscreen mode and IMS#mExtractEditText is in text action mode, 7404 // InputMethodService#onKeyDown and InputMethodService#onKeyUp are responsible to call 7405 // InputMethodService#mExtractEditText.maybeHandleBackInTextActionMode(event). 7406 if (keyCode == KeyEvent.KEYCODE_BACK && handleBackInTextActionModeIfNeeded(event)) { 7407 return true; 7408 } 7409 return super.onKeyPreIme(keyCode, event); 7410 } 7411 7412 /** 7413 * @hide 7414 */ 7415 public boolean handleBackInTextActionModeIfNeeded(KeyEvent event) { 7416 // Do nothing unless mEditor is in text action mode. 7417 if (mEditor == null || mEditor.getTextActionMode() == null) { 7418 return false; 7419 } 7420 7421 if (event.getAction() == KeyEvent.ACTION_DOWN && event.getRepeatCount() == 0) { 7422 KeyEvent.DispatcherState state = getKeyDispatcherState(); 7423 if (state != null) { 7424 state.startTracking(event, this); 7425 } 7426 return true; 7427 } else if (event.getAction() == KeyEvent.ACTION_UP) { 7428 KeyEvent.DispatcherState state = getKeyDispatcherState(); 7429 if (state != null) { 7430 state.handleUpEvent(event); 7431 } 7432 if (event.isTracking() && !event.isCanceled()) { 7433 stopTextActionMode(); 7434 return true; 7435 } 7436 } 7437 return false; 7438 } 7439 7440 @Override 7441 public boolean onKeyDown(int keyCode, KeyEvent event) { 7442 final int which = doKeyDown(keyCode, event, null); 7443 if (which == KEY_EVENT_NOT_HANDLED) { 7444 return super.onKeyDown(keyCode, event); 7445 } 7446 7447 return true; 7448 } 7449 7450 @Override 7451 public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) { 7452 KeyEvent down = KeyEvent.changeAction(event, KeyEvent.ACTION_DOWN); 7453 final int which = doKeyDown(keyCode, down, event); 7454 if (which == KEY_EVENT_NOT_HANDLED) { 7455 // Go through default dispatching. 7456 return super.onKeyMultiple(keyCode, repeatCount, event); 7457 } 7458 if (which == KEY_EVENT_HANDLED) { 7459 // Consumed the whole thing. 7460 return true; 7461 } 7462 7463 repeatCount--; 7464 7465 // We are going to dispatch the remaining events to either the input 7466 // or movement method. To do this, we will just send a repeated stream 7467 // of down and up events until we have done the complete repeatCount. 7468 // It would be nice if those interfaces had an onKeyMultiple() method, 7469 // but adding that is a more complicated change. 7470 KeyEvent up = KeyEvent.changeAction(event, KeyEvent.ACTION_UP); 7471 if (which == KEY_DOWN_HANDLED_BY_KEY_LISTENER) { 7472 // mEditor and mEditor.mInput are not null from doKeyDown 7473 mEditor.mKeyListener.onKeyUp(this, (Editable) mText, keyCode, up); 7474 while (--repeatCount > 0) { 7475 mEditor.mKeyListener.onKeyDown(this, (Editable) mText, keyCode, down); 7476 mEditor.mKeyListener.onKeyUp(this, (Editable) mText, keyCode, up); 7477 } 7478 hideErrorIfUnchanged(); 7479 7480 } else if (which == KEY_DOWN_HANDLED_BY_MOVEMENT_METHOD) { 7481 // mMovement is not null from doKeyDown 7482 mMovement.onKeyUp(this, mSpannable, keyCode, up); 7483 while (--repeatCount > 0) { 7484 mMovement.onKeyDown(this, mSpannable, keyCode, down); 7485 mMovement.onKeyUp(this, mSpannable, keyCode, up); 7486 } 7487 } 7488 7489 return true; 7490 } 7491 7492 /** 7493 * Returns true if pressing ENTER in this field advances focus instead 7494 * of inserting the character. This is true mostly in single-line fields, 7495 * but also in mail addresses and subjects which will display on multiple 7496 * lines but where it doesn't make sense to insert newlines. 7497 */ 7498 private boolean shouldAdvanceFocusOnEnter() { 7499 if (getKeyListener() == null) { 7500 return false; 7501 } 7502 7503 if (mSingleLine) { 7504 return true; 7505 } 7506 7507 if (mEditor != null 7508 && (mEditor.mInputType & EditorInfo.TYPE_MASK_CLASS) 7509 == EditorInfo.TYPE_CLASS_TEXT) { 7510 int variation = mEditor.mInputType & EditorInfo.TYPE_MASK_VARIATION; 7511 if (variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_ADDRESS 7512 || variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT) { 7513 return true; 7514 } 7515 } 7516 7517 return false; 7518 } 7519 7520 /** 7521 * Returns true if pressing TAB in this field advances focus instead 7522 * of inserting the character. Insert tabs only in multi-line editors. 7523 */ 7524 private boolean shouldAdvanceFocusOnTab() { 7525 if (getKeyListener() != null && !mSingleLine && mEditor != null 7526 && (mEditor.mInputType & EditorInfo.TYPE_MASK_CLASS) 7527 == EditorInfo.TYPE_CLASS_TEXT) { 7528 int variation = mEditor.mInputType & EditorInfo.TYPE_MASK_VARIATION; 7529 if (variation == EditorInfo.TYPE_TEXT_FLAG_IME_MULTI_LINE 7530 || variation == EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE) { 7531 return false; 7532 } 7533 } 7534 return true; 7535 } 7536 7537 private boolean isDirectionalNavigationKey(int keyCode) { 7538 switch(keyCode) { 7539 case KeyEvent.KEYCODE_DPAD_UP: 7540 case KeyEvent.KEYCODE_DPAD_DOWN: 7541 case KeyEvent.KEYCODE_DPAD_LEFT: 7542 case KeyEvent.KEYCODE_DPAD_RIGHT: 7543 return true; 7544 } 7545 return false; 7546 } 7547 7548 private int doKeyDown(int keyCode, KeyEvent event, KeyEvent otherEvent) { 7549 if (!isEnabled()) { 7550 return KEY_EVENT_NOT_HANDLED; 7551 } 7552 7553 // If this is the initial keydown, we don't want to prevent a movement away from this view. 7554 // While this shouldn't be necessary because any time we're preventing default movement we 7555 // should be restricting the focus to remain within this view, thus we'll also receive 7556 // the key up event, occasionally key up events will get dropped and we don't want to 7557 // prevent the user from traversing out of this on the next key down. 7558 if (event.getRepeatCount() == 0 && !KeyEvent.isModifierKey(keyCode)) { 7559 mPreventDefaultMovement = false; 7560 } 7561 7562 switch (keyCode) { 7563 case KeyEvent.KEYCODE_ENTER: 7564 if (event.hasNoModifiers()) { 7565 // When mInputContentType is set, we know that we are 7566 // running in a "modern" cupcake environment, so don't need 7567 // to worry about the application trying to capture 7568 // enter key events. 7569 if (mEditor != null && mEditor.mInputContentType != null) { 7570 // If there is an action listener, given them a 7571 // chance to consume the event. 7572 if (mEditor.mInputContentType.onEditorActionListener != null 7573 && mEditor.mInputContentType.onEditorActionListener.onEditorAction( 7574 this, EditorInfo.IME_NULL, event)) { 7575 mEditor.mInputContentType.enterDown = true; 7576 // We are consuming the enter key for them. 7577 return KEY_EVENT_HANDLED; 7578 } 7579 } 7580 7581 // If our editor should move focus when enter is pressed, or 7582 // this is a generated event from an IME action button, then 7583 // don't let it be inserted into the text. 7584 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 7585 || shouldAdvanceFocusOnEnter()) { 7586 if (hasOnClickListeners()) { 7587 return KEY_EVENT_NOT_HANDLED; 7588 } 7589 return KEY_EVENT_HANDLED; 7590 } 7591 } 7592 break; 7593 7594 case KeyEvent.KEYCODE_DPAD_CENTER: 7595 if (event.hasNoModifiers()) { 7596 if (shouldAdvanceFocusOnEnter()) { 7597 return KEY_EVENT_NOT_HANDLED; 7598 } 7599 } 7600 break; 7601 7602 case KeyEvent.KEYCODE_TAB: 7603 if (event.hasNoModifiers() || event.hasModifiers(KeyEvent.META_SHIFT_ON)) { 7604 if (shouldAdvanceFocusOnTab()) { 7605 return KEY_EVENT_NOT_HANDLED; 7606 } 7607 } 7608 break; 7609 7610 // Has to be done on key down (and not on key up) to correctly be intercepted. 7611 case KeyEvent.KEYCODE_BACK: 7612 if (mEditor != null && mEditor.getTextActionMode() != null) { 7613 stopTextActionMode(); 7614 return KEY_EVENT_HANDLED; 7615 } 7616 break; 7617 7618 case KeyEvent.KEYCODE_CUT: 7619 if (event.hasNoModifiers() && canCut()) { 7620 if (onTextContextMenuItem(ID_CUT)) { 7621 return KEY_EVENT_HANDLED; 7622 } 7623 } 7624 break; 7625 7626 case KeyEvent.KEYCODE_COPY: 7627 if (event.hasNoModifiers() && canCopy()) { 7628 if (onTextContextMenuItem(ID_COPY)) { 7629 return KEY_EVENT_HANDLED; 7630 } 7631 } 7632 break; 7633 7634 case KeyEvent.KEYCODE_PASTE: 7635 if (event.hasNoModifiers() && canPaste()) { 7636 if (onTextContextMenuItem(ID_PASTE)) { 7637 return KEY_EVENT_HANDLED; 7638 } 7639 } 7640 break; 7641 } 7642 7643 if (mEditor != null && mEditor.mKeyListener != null) { 7644 boolean doDown = true; 7645 if (otherEvent != null) { 7646 try { 7647 beginBatchEdit(); 7648 final boolean handled = mEditor.mKeyListener.onKeyOther(this, (Editable) mText, 7649 otherEvent); 7650 hideErrorIfUnchanged(); 7651 doDown = false; 7652 if (handled) { 7653 return KEY_EVENT_HANDLED; 7654 } 7655 } catch (AbstractMethodError e) { 7656 // onKeyOther was added after 1.0, so if it isn't 7657 // implemented we need to try to dispatch as a regular down. 7658 } finally { 7659 endBatchEdit(); 7660 } 7661 } 7662 7663 if (doDown) { 7664 beginBatchEdit(); 7665 final boolean handled = mEditor.mKeyListener.onKeyDown(this, (Editable) mText, 7666 keyCode, event); 7667 endBatchEdit(); 7668 hideErrorIfUnchanged(); 7669 if (handled) return KEY_DOWN_HANDLED_BY_KEY_LISTENER; 7670 } 7671 } 7672 7673 // bug 650865: sometimes we get a key event before a layout. 7674 // don't try to move around if we don't know the layout. 7675 7676 if (mMovement != null && mLayout != null) { 7677 boolean doDown = true; 7678 if (otherEvent != null) { 7679 try { 7680 boolean handled = mMovement.onKeyOther(this, mSpannable, otherEvent); 7681 doDown = false; 7682 if (handled) { 7683 return KEY_EVENT_HANDLED; 7684 } 7685 } catch (AbstractMethodError e) { 7686 // onKeyOther was added after 1.0, so if it isn't 7687 // implemented we need to try to dispatch as a regular down. 7688 } 7689 } 7690 if (doDown) { 7691 if (mMovement.onKeyDown(this, mSpannable, keyCode, event)) { 7692 if (event.getRepeatCount() == 0 && !KeyEvent.isModifierKey(keyCode)) { 7693 mPreventDefaultMovement = true; 7694 } 7695 return KEY_DOWN_HANDLED_BY_MOVEMENT_METHOD; 7696 } 7697 } 7698 // Consume arrows from keyboard devices to prevent focus leaving the editor. 7699 // DPAD/JOY devices (Gamepads, TV remotes) often lack a TAB key so allow those 7700 // to move focus with arrows. 7701 if (event.getSource() == InputDevice.SOURCE_KEYBOARD 7702 && isDirectionalNavigationKey(keyCode)) { 7703 return KEY_EVENT_HANDLED; 7704 } 7705 } 7706 7707 return mPreventDefaultMovement && !KeyEvent.isModifierKey(keyCode) 7708 ? KEY_EVENT_HANDLED : KEY_EVENT_NOT_HANDLED; 7709 } 7710 7711 /** 7712 * Resets the mErrorWasChanged flag, so that future calls to {@link #setError(CharSequence)} 7713 * can be recorded. 7714 * @hide 7715 */ 7716 public void resetErrorChangedFlag() { 7717 /* 7718 * Keep track of what the error was before doing the input 7719 * so that if an input filter changed the error, we leave 7720 * that error showing. Otherwise, we take down whatever 7721 * error was showing when the user types something. 7722 */ 7723 if (mEditor != null) mEditor.mErrorWasChanged = false; 7724 } 7725 7726 /** 7727 * @hide 7728 */ 7729 public void hideErrorIfUnchanged() { 7730 if (mEditor != null && mEditor.mError != null && !mEditor.mErrorWasChanged) { 7731 setError(null, null); 7732 } 7733 } 7734 7735 @Override 7736 public boolean onKeyUp(int keyCode, KeyEvent event) { 7737 if (!isEnabled()) { 7738 return super.onKeyUp(keyCode, event); 7739 } 7740 7741 if (!KeyEvent.isModifierKey(keyCode)) { 7742 mPreventDefaultMovement = false; 7743 } 7744 7745 switch (keyCode) { 7746 case KeyEvent.KEYCODE_DPAD_CENTER: 7747 if (event.hasNoModifiers()) { 7748 /* 7749 * If there is a click listener, just call through to 7750 * super, which will invoke it. 7751 * 7752 * If there isn't a click listener, try to show the soft 7753 * input method. (It will also 7754 * call performClick(), but that won't do anything in 7755 * this case.) 7756 */ 7757 if (!hasOnClickListeners()) { 7758 if (mMovement != null && mText instanceof Editable 7759 && mLayout != null && onCheckIsTextEditor()) { 7760 InputMethodManager imm = InputMethodManager.peekInstance(); 7761 viewClicked(imm); 7762 if (imm != null && getShowSoftInputOnFocus()) { 7763 imm.showSoftInput(this, 0); 7764 } 7765 } 7766 } 7767 } 7768 return super.onKeyUp(keyCode, event); 7769 7770 case KeyEvent.KEYCODE_ENTER: 7771 if (event.hasNoModifiers()) { 7772 if (mEditor != null && mEditor.mInputContentType != null 7773 && mEditor.mInputContentType.onEditorActionListener != null 7774 && mEditor.mInputContentType.enterDown) { 7775 mEditor.mInputContentType.enterDown = false; 7776 if (mEditor.mInputContentType.onEditorActionListener.onEditorAction( 7777 this, EditorInfo.IME_NULL, event)) { 7778 return true; 7779 } 7780 } 7781 7782 if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 7783 || shouldAdvanceFocusOnEnter()) { 7784 /* 7785 * If there is a click listener, just call through to 7786 * super, which will invoke it. 7787 * 7788 * If there isn't a click listener, try to advance focus, 7789 * but still call through to super, which will reset the 7790 * pressed state and longpress state. (It will also 7791 * call performClick(), but that won't do anything in 7792 * this case.) 7793 */ 7794 if (!hasOnClickListeners()) { 7795 View v = focusSearch(FOCUS_DOWN); 7796 7797 if (v != null) { 7798 if (!v.requestFocus(FOCUS_DOWN)) { 7799 throw new IllegalStateException("focus search returned a view " 7800 + "that wasn't able to take focus!"); 7801 } 7802 7803 /* 7804 * Return true because we handled the key; super 7805 * will return false because there was no click 7806 * listener. 7807 */ 7808 super.onKeyUp(keyCode, event); 7809 return true; 7810 } else if ((event.getFlags() 7811 & KeyEvent.FLAG_EDITOR_ACTION) != 0) { 7812 // No target for next focus, but make sure the IME 7813 // if this came from it. 7814 InputMethodManager imm = InputMethodManager.peekInstance(); 7815 if (imm != null && imm.isActive(this)) { 7816 imm.hideSoftInputFromWindow(getWindowToken(), 0); 7817 } 7818 } 7819 } 7820 } 7821 return super.onKeyUp(keyCode, event); 7822 } 7823 break; 7824 } 7825 7826 if (mEditor != null && mEditor.mKeyListener != null) { 7827 if (mEditor.mKeyListener.onKeyUp(this, (Editable) mText, keyCode, event)) { 7828 return true; 7829 } 7830 } 7831 7832 if (mMovement != null && mLayout != null) { 7833 if (mMovement.onKeyUp(this, mSpannable, keyCode, event)) { 7834 return true; 7835 } 7836 } 7837 7838 return super.onKeyUp(keyCode, event); 7839 } 7840 7841 @Override 7842 public boolean onCheckIsTextEditor() { 7843 return mEditor != null && mEditor.mInputType != EditorInfo.TYPE_NULL; 7844 } 7845 7846 @Override 7847 public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 7848 if (onCheckIsTextEditor() && isEnabled()) { 7849 mEditor.createInputMethodStateIfNeeded(); 7850 outAttrs.inputType = getInputType(); 7851 if (mEditor.mInputContentType != null) { 7852 outAttrs.imeOptions = mEditor.mInputContentType.imeOptions; 7853 outAttrs.privateImeOptions = mEditor.mInputContentType.privateImeOptions; 7854 outAttrs.actionLabel = mEditor.mInputContentType.imeActionLabel; 7855 outAttrs.actionId = mEditor.mInputContentType.imeActionId; 7856 outAttrs.extras = mEditor.mInputContentType.extras; 7857 outAttrs.hintLocales = mEditor.mInputContentType.imeHintLocales; 7858 } else { 7859 outAttrs.imeOptions = EditorInfo.IME_NULL; 7860 outAttrs.hintLocales = null; 7861 } 7862 if (focusSearch(FOCUS_DOWN) != null) { 7863 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_NEXT; 7864 } 7865 if (focusSearch(FOCUS_UP) != null) { 7866 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_PREVIOUS; 7867 } 7868 if ((outAttrs.imeOptions & EditorInfo.IME_MASK_ACTION) 7869 == EditorInfo.IME_ACTION_UNSPECIFIED) { 7870 if ((outAttrs.imeOptions & EditorInfo.IME_FLAG_NAVIGATE_NEXT) != 0) { 7871 // An action has not been set, but the enter key will move to 7872 // the next focus, so set the action to that. 7873 outAttrs.imeOptions |= EditorInfo.IME_ACTION_NEXT; 7874 } else { 7875 // An action has not been set, and there is no focus to move 7876 // to, so let's just supply a "done" action. 7877 outAttrs.imeOptions |= EditorInfo.IME_ACTION_DONE; 7878 } 7879 if (!shouldAdvanceFocusOnEnter()) { 7880 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 7881 } 7882 } 7883 if (isMultilineInputType(outAttrs.inputType)) { 7884 // Multi-line text editors should always show an enter key. 7885 outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION; 7886 } 7887 outAttrs.hintText = mHint; 7888 if (mText instanceof Editable) { 7889 InputConnection ic = new EditableInputConnection(this); 7890 outAttrs.initialSelStart = getSelectionStart(); 7891 outAttrs.initialSelEnd = getSelectionEnd(); 7892 outAttrs.initialCapsMode = ic.getCursorCapsMode(getInputType()); 7893 return ic; 7894 } 7895 } 7896 return null; 7897 } 7898 7899 /** 7900 * If this TextView contains editable content, extract a portion of it 7901 * based on the information in <var>request</var> in to <var>outText</var>. 7902 * @return Returns true if the text was successfully extracted, else false. 7903 */ 7904 public boolean extractText(ExtractedTextRequest request, ExtractedText outText) { 7905 createEditorIfNeeded(); 7906 return mEditor.extractText(request, outText); 7907 } 7908 7909 /** 7910 * This is used to remove all style-impacting spans from text before new 7911 * extracted text is being replaced into it, so that we don't have any 7912 * lingering spans applied during the replace. 7913 */ 7914 static void removeParcelableSpans(Spannable spannable, int start, int end) { 7915 Object[] spans = spannable.getSpans(start, end, ParcelableSpan.class); 7916 int i = spans.length; 7917 while (i > 0) { 7918 i--; 7919 spannable.removeSpan(spans[i]); 7920 } 7921 } 7922 7923 /** 7924 * Apply to this text view the given extracted text, as previously 7925 * returned by {@link #extractText(ExtractedTextRequest, ExtractedText)}. 7926 */ 7927 public void setExtractedText(ExtractedText text) { 7928 Editable content = getEditableText(); 7929 if (text.text != null) { 7930 if (content == null) { 7931 setText(text.text, TextView.BufferType.EDITABLE); 7932 } else { 7933 int start = 0; 7934 int end = content.length(); 7935 7936 if (text.partialStartOffset >= 0) { 7937 final int N = content.length(); 7938 start = text.partialStartOffset; 7939 if (start > N) start = N; 7940 end = text.partialEndOffset; 7941 if (end > N) end = N; 7942 } 7943 7944 removeParcelableSpans(content, start, end); 7945 if (TextUtils.equals(content.subSequence(start, end), text.text)) { 7946 if (text.text instanceof Spanned) { 7947 // OK to copy spans only. 7948 TextUtils.copySpansFrom((Spanned) text.text, 0, end - start, 7949 Object.class, content, start); 7950 } 7951 } else { 7952 content.replace(start, end, text.text); 7953 } 7954 } 7955 } 7956 7957 // Now set the selection position... make sure it is in range, to 7958 // avoid crashes. If this is a partial update, it is possible that 7959 // the underlying text may have changed, causing us problems here. 7960 // Also we just don't want to trust clients to do the right thing. 7961 Spannable sp = (Spannable) getText(); 7962 final int N = sp.length(); 7963 int start = text.selectionStart; 7964 if (start < 0) { 7965 start = 0; 7966 } else if (start > N) { 7967 start = N; 7968 } 7969 int end = text.selectionEnd; 7970 if (end < 0) { 7971 end = 0; 7972 } else if (end > N) { 7973 end = N; 7974 } 7975 Selection.setSelection(sp, start, end); 7976 7977 // Finally, update the selection mode. 7978 if ((text.flags & ExtractedText.FLAG_SELECTING) != 0) { 7979 MetaKeyKeyListener.startSelecting(this, sp); 7980 } else { 7981 MetaKeyKeyListener.stopSelecting(this, sp); 7982 } 7983 7984 setHintInternal(text.hint); 7985 } 7986 7987 /** 7988 * @hide 7989 */ 7990 public void setExtracting(ExtractedTextRequest req) { 7991 if (mEditor.mInputMethodState != null) { 7992 mEditor.mInputMethodState.mExtractedTextRequest = req; 7993 } 7994 // This would stop a possible selection mode, but no such mode is started in case 7995 // extracted mode will start. Some text is selected though, and will trigger an action mode 7996 // in the extracted view. 7997 mEditor.hideCursorAndSpanControllers(); 7998 stopTextActionMode(); 7999 if (mEditor.mSelectionModifierCursorController != null) { 8000 mEditor.mSelectionModifierCursorController.resetTouchOffsets(); 8001 } 8002 } 8003 8004 /** 8005 * Called by the framework in response to a text completion from 8006 * the current input method, provided by it calling 8007 * {@link InputConnection#commitCompletion 8008 * InputConnection.commitCompletion()}. The default implementation does 8009 * nothing; text views that are supporting auto-completion should override 8010 * this to do their desired behavior. 8011 * 8012 * @param text The auto complete text the user has selected. 8013 */ 8014 public void onCommitCompletion(CompletionInfo text) { 8015 // intentionally empty 8016 } 8017 8018 /** 8019 * Called by the framework in response to a text auto-correction (such as fixing a typo using a 8020 * dictionary) from the current input method, provided by it calling 8021 * {@link InputConnection#commitCorrection(CorrectionInfo) InputConnection.commitCorrection()}. 8022 * The default implementation flashes the background of the corrected word to provide 8023 * feedback to the user. 8024 * 8025 * @param info The auto correct info about the text that was corrected. 8026 */ 8027 public void onCommitCorrection(CorrectionInfo info) { 8028 if (mEditor != null) mEditor.onCommitCorrection(info); 8029 } 8030 8031 public void beginBatchEdit() { 8032 if (mEditor != null) mEditor.beginBatchEdit(); 8033 } 8034 8035 public void endBatchEdit() { 8036 if (mEditor != null) mEditor.endBatchEdit(); 8037 } 8038 8039 /** 8040 * Called by the framework in response to a request to begin a batch 8041 * of edit operations through a call to link {@link #beginBatchEdit()}. 8042 */ 8043 public void onBeginBatchEdit() { 8044 // intentionally empty 8045 } 8046 8047 /** 8048 * Called by the framework in response to a request to end a batch 8049 * of edit operations through a call to link {@link #endBatchEdit}. 8050 */ 8051 public void onEndBatchEdit() { 8052 // intentionally empty 8053 } 8054 8055 /** 8056 * Called by the framework in response to a private command from the 8057 * current method, provided by it calling 8058 * {@link InputConnection#performPrivateCommand 8059 * InputConnection.performPrivateCommand()}. 8060 * 8061 * @param action The action name of the command. 8062 * @param data Any additional data for the command. This may be null. 8063 * @return Return true if you handled the command, else false. 8064 */ 8065 public boolean onPrivateIMECommand(String action, Bundle data) { 8066 return false; 8067 } 8068 8069 /** @hide */ 8070 @VisibleForTesting 8071 public void nullLayouts() { 8072 if (mLayout instanceof BoringLayout && mSavedLayout == null) { 8073 mSavedLayout = (BoringLayout) mLayout; 8074 } 8075 if (mHintLayout instanceof BoringLayout && mSavedHintLayout == null) { 8076 mSavedHintLayout = (BoringLayout) mHintLayout; 8077 } 8078 8079 mSavedMarqueeModeLayout = mLayout = mHintLayout = null; 8080 8081 mBoring = mHintBoring = null; 8082 8083 // Since it depends on the value of mLayout 8084 if (mEditor != null) mEditor.prepareCursorControllers(); 8085 } 8086 8087 /** 8088 * Make a new Layout based on the already-measured size of the view, 8089 * on the assumption that it was measured correctly at some point. 8090 */ 8091 private void assumeLayout() { 8092 int width = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 8093 8094 if (width < 1) { 8095 width = 0; 8096 } 8097 8098 int physicalWidth = width; 8099 8100 if (mHorizontallyScrolling) { 8101 width = VERY_WIDE; 8102 } 8103 8104 makeNewLayout(width, physicalWidth, UNKNOWN_BORING, UNKNOWN_BORING, 8105 physicalWidth, false); 8106 } 8107 8108 private Layout.Alignment getLayoutAlignment() { 8109 Layout.Alignment alignment; 8110 switch (getTextAlignment()) { 8111 case TEXT_ALIGNMENT_GRAVITY: 8112 switch (mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) { 8113 case Gravity.START: 8114 alignment = Layout.Alignment.ALIGN_NORMAL; 8115 break; 8116 case Gravity.END: 8117 alignment = Layout.Alignment.ALIGN_OPPOSITE; 8118 break; 8119 case Gravity.LEFT: 8120 alignment = Layout.Alignment.ALIGN_LEFT; 8121 break; 8122 case Gravity.RIGHT: 8123 alignment = Layout.Alignment.ALIGN_RIGHT; 8124 break; 8125 case Gravity.CENTER_HORIZONTAL: 8126 alignment = Layout.Alignment.ALIGN_CENTER; 8127 break; 8128 default: 8129 alignment = Layout.Alignment.ALIGN_NORMAL; 8130 break; 8131 } 8132 break; 8133 case TEXT_ALIGNMENT_TEXT_START: 8134 alignment = Layout.Alignment.ALIGN_NORMAL; 8135 break; 8136 case TEXT_ALIGNMENT_TEXT_END: 8137 alignment = Layout.Alignment.ALIGN_OPPOSITE; 8138 break; 8139 case TEXT_ALIGNMENT_CENTER: 8140 alignment = Layout.Alignment.ALIGN_CENTER; 8141 break; 8142 case TEXT_ALIGNMENT_VIEW_START: 8143 alignment = (getLayoutDirection() == LAYOUT_DIRECTION_RTL) 8144 ? Layout.Alignment.ALIGN_RIGHT : Layout.Alignment.ALIGN_LEFT; 8145 break; 8146 case TEXT_ALIGNMENT_VIEW_END: 8147 alignment = (getLayoutDirection() == LAYOUT_DIRECTION_RTL) 8148 ? Layout.Alignment.ALIGN_LEFT : Layout.Alignment.ALIGN_RIGHT; 8149 break; 8150 case TEXT_ALIGNMENT_INHERIT: 8151 // This should never happen as we have already resolved the text alignment 8152 // but better safe than sorry so we just fall through 8153 default: 8154 alignment = Layout.Alignment.ALIGN_NORMAL; 8155 break; 8156 } 8157 return alignment; 8158 } 8159 8160 /** 8161 * The width passed in is now the desired layout width, 8162 * not the full view width with padding. 8163 * {@hide} 8164 */ 8165 @VisibleForTesting 8166 public void makeNewLayout(int wantWidth, int hintWidth, 8167 BoringLayout.Metrics boring, 8168 BoringLayout.Metrics hintBoring, 8169 int ellipsisWidth, boolean bringIntoView) { 8170 stopMarquee(); 8171 8172 // Update "old" cached values 8173 mOldMaximum = mMaximum; 8174 mOldMaxMode = mMaxMode; 8175 8176 mHighlightPathBogus = true; 8177 8178 if (wantWidth < 0) { 8179 wantWidth = 0; 8180 } 8181 if (hintWidth < 0) { 8182 hintWidth = 0; 8183 } 8184 8185 Layout.Alignment alignment = getLayoutAlignment(); 8186 final boolean testDirChange = mSingleLine && mLayout != null 8187 && (alignment == Layout.Alignment.ALIGN_NORMAL 8188 || alignment == Layout.Alignment.ALIGN_OPPOSITE); 8189 int oldDir = 0; 8190 if (testDirChange) oldDir = mLayout.getParagraphDirection(0); 8191 boolean shouldEllipsize = mEllipsize != null && getKeyListener() == null; 8192 final boolean switchEllipsize = mEllipsize == TruncateAt.MARQUEE 8193 && mMarqueeFadeMode != MARQUEE_FADE_NORMAL; 8194 TruncateAt effectiveEllipsize = mEllipsize; 8195 if (mEllipsize == TruncateAt.MARQUEE 8196 && mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 8197 effectiveEllipsize = TruncateAt.END_SMALL; 8198 } 8199 8200 if (mTextDir == null) { 8201 mTextDir = getTextDirectionHeuristic(); 8202 } 8203 8204 mLayout = makeSingleLayout(wantWidth, boring, ellipsisWidth, alignment, shouldEllipsize, 8205 effectiveEllipsize, effectiveEllipsize == mEllipsize); 8206 if (switchEllipsize) { 8207 TruncateAt oppositeEllipsize = effectiveEllipsize == TruncateAt.MARQUEE 8208 ? TruncateAt.END : TruncateAt.MARQUEE; 8209 mSavedMarqueeModeLayout = makeSingleLayout(wantWidth, boring, ellipsisWidth, alignment, 8210 shouldEllipsize, oppositeEllipsize, effectiveEllipsize != mEllipsize); 8211 } 8212 8213 shouldEllipsize = mEllipsize != null; 8214 mHintLayout = null; 8215 8216 if (mHint != null) { 8217 if (shouldEllipsize) hintWidth = wantWidth; 8218 8219 if (hintBoring == UNKNOWN_BORING) { 8220 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mTextDir, 8221 mHintBoring); 8222 if (hintBoring != null) { 8223 mHintBoring = hintBoring; 8224 } 8225 } 8226 8227 if (hintBoring != null) { 8228 if (hintBoring.width <= hintWidth 8229 && (!shouldEllipsize || hintBoring.width <= ellipsisWidth)) { 8230 if (mSavedHintLayout != null) { 8231 mHintLayout = mSavedHintLayout.replaceOrMake(mHint, mTextPaint, 8232 hintWidth, alignment, mSpacingMult, mSpacingAdd, 8233 hintBoring, mIncludePad); 8234 } else { 8235 mHintLayout = BoringLayout.make(mHint, mTextPaint, 8236 hintWidth, alignment, mSpacingMult, mSpacingAdd, 8237 hintBoring, mIncludePad); 8238 } 8239 8240 mSavedHintLayout = (BoringLayout) mHintLayout; 8241 } else if (shouldEllipsize && hintBoring.width <= hintWidth) { 8242 if (mSavedHintLayout != null) { 8243 mHintLayout = mSavedHintLayout.replaceOrMake(mHint, mTextPaint, 8244 hintWidth, alignment, mSpacingMult, mSpacingAdd, 8245 hintBoring, mIncludePad, mEllipsize, 8246 ellipsisWidth); 8247 } else { 8248 mHintLayout = BoringLayout.make(mHint, mTextPaint, 8249 hintWidth, alignment, mSpacingMult, mSpacingAdd, 8250 hintBoring, mIncludePad, mEllipsize, 8251 ellipsisWidth); 8252 } 8253 } 8254 } 8255 // TODO: code duplication with makeSingleLayout() 8256 if (mHintLayout == null) { 8257 StaticLayout.Builder builder = StaticLayout.Builder.obtain(mHint, 0, 8258 mHint.length(), mTextPaint, hintWidth) 8259 .setAlignment(alignment) 8260 .setTextDirection(mTextDir) 8261 .setLineSpacing(mSpacingAdd, mSpacingMult) 8262 .setIncludePad(mIncludePad) 8263 .setUseLineSpacingFromFallbacks(mUseFallbackLineSpacing) 8264 .setBreakStrategy(mBreakStrategy) 8265 .setHyphenationFrequency(mHyphenationFrequency) 8266 .setJustificationMode(mJustificationMode) 8267 .setMaxLines(mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 8268 if (shouldEllipsize) { 8269 builder.setEllipsize(mEllipsize) 8270 .setEllipsizedWidth(ellipsisWidth); 8271 } 8272 mHintLayout = builder.build(); 8273 } 8274 } 8275 8276 if (bringIntoView || (testDirChange && oldDir != mLayout.getParagraphDirection(0))) { 8277 registerForPreDraw(); 8278 } 8279 8280 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 8281 if (!compressText(ellipsisWidth)) { 8282 final int height = mLayoutParams.height; 8283 // If the size of the view does not depend on the size of the text, try to 8284 // start the marquee immediately 8285 if (height != LayoutParams.WRAP_CONTENT && height != LayoutParams.MATCH_PARENT) { 8286 startMarquee(); 8287 } else { 8288 // Defer the start of the marquee until we know our width (see setFrame()) 8289 mRestartMarquee = true; 8290 } 8291 } 8292 } 8293 8294 // CursorControllers need a non-null mLayout 8295 if (mEditor != null) mEditor.prepareCursorControllers(); 8296 } 8297 8298 /** 8299 * Returns true if DynamicLayout is required 8300 * 8301 * @hide 8302 */ 8303 @VisibleForTesting 8304 public boolean useDynamicLayout() { 8305 return isTextSelectable() || (mSpannable != null && mPrecomputed == null); 8306 } 8307 8308 /** 8309 * @hide 8310 */ 8311 protected Layout makeSingleLayout(int wantWidth, BoringLayout.Metrics boring, int ellipsisWidth, 8312 Layout.Alignment alignment, boolean shouldEllipsize, TruncateAt effectiveEllipsize, 8313 boolean useSaved) { 8314 Layout result = null; 8315 if (useDynamicLayout()) { 8316 final DynamicLayout.Builder builder = DynamicLayout.Builder.obtain(mText, mTextPaint, 8317 wantWidth) 8318 .setDisplayText(mTransformed) 8319 .setAlignment(alignment) 8320 .setTextDirection(mTextDir) 8321 .setLineSpacing(mSpacingAdd, mSpacingMult) 8322 .setIncludePad(mIncludePad) 8323 .setUseLineSpacingFromFallbacks(mUseFallbackLineSpacing) 8324 .setBreakStrategy(mBreakStrategy) 8325 .setHyphenationFrequency(mHyphenationFrequency) 8326 .setJustificationMode(mJustificationMode) 8327 .setEllipsize(getKeyListener() == null ? effectiveEllipsize : null) 8328 .setEllipsizedWidth(ellipsisWidth); 8329 result = builder.build(); 8330 } else { 8331 if (boring == UNKNOWN_BORING) { 8332 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mTextDir, mBoring); 8333 if (boring != null) { 8334 mBoring = boring; 8335 } 8336 } 8337 8338 if (boring != null) { 8339 if (boring.width <= wantWidth 8340 && (effectiveEllipsize == null || boring.width <= ellipsisWidth)) { 8341 if (useSaved && mSavedLayout != null) { 8342 result = mSavedLayout.replaceOrMake(mTransformed, mTextPaint, 8343 wantWidth, alignment, mSpacingMult, mSpacingAdd, 8344 boring, mIncludePad); 8345 } else { 8346 result = BoringLayout.make(mTransformed, mTextPaint, 8347 wantWidth, alignment, mSpacingMult, mSpacingAdd, 8348 boring, mIncludePad); 8349 } 8350 8351 if (useSaved) { 8352 mSavedLayout = (BoringLayout) result; 8353 } 8354 } else if (shouldEllipsize && boring.width <= wantWidth) { 8355 if (useSaved && mSavedLayout != null) { 8356 result = mSavedLayout.replaceOrMake(mTransformed, mTextPaint, 8357 wantWidth, alignment, mSpacingMult, mSpacingAdd, 8358 boring, mIncludePad, effectiveEllipsize, 8359 ellipsisWidth); 8360 } else { 8361 result = BoringLayout.make(mTransformed, mTextPaint, 8362 wantWidth, alignment, mSpacingMult, mSpacingAdd, 8363 boring, mIncludePad, effectiveEllipsize, 8364 ellipsisWidth); 8365 } 8366 } 8367 } 8368 } 8369 if (result == null) { 8370 StaticLayout.Builder builder = StaticLayout.Builder.obtain(mTransformed, 8371 0, mTransformed.length(), mTextPaint, wantWidth) 8372 .setAlignment(alignment) 8373 .setTextDirection(mTextDir) 8374 .setLineSpacing(mSpacingAdd, mSpacingMult) 8375 .setIncludePad(mIncludePad) 8376 .setUseLineSpacingFromFallbacks(mUseFallbackLineSpacing) 8377 .setBreakStrategy(mBreakStrategy) 8378 .setHyphenationFrequency(mHyphenationFrequency) 8379 .setJustificationMode(mJustificationMode) 8380 .setMaxLines(mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE); 8381 if (shouldEllipsize) { 8382 builder.setEllipsize(effectiveEllipsize) 8383 .setEllipsizedWidth(ellipsisWidth); 8384 } 8385 result = builder.build(); 8386 } 8387 return result; 8388 } 8389 8390 private boolean compressText(float width) { 8391 if (isHardwareAccelerated()) return false; 8392 8393 // Only compress the text if it hasn't been compressed by the previous pass 8394 if (width > 0.0f && mLayout != null && getLineCount() == 1 && !mUserSetTextScaleX 8395 && mTextPaint.getTextScaleX() == 1.0f) { 8396 final float textWidth = mLayout.getLineWidth(0); 8397 final float overflow = (textWidth + 1.0f - width) / width; 8398 if (overflow > 0.0f && overflow <= Marquee.MARQUEE_DELTA_MAX) { 8399 mTextPaint.setTextScaleX(1.0f - overflow - 0.005f); 8400 post(new Runnable() { 8401 public void run() { 8402 requestLayout(); 8403 } 8404 }); 8405 return true; 8406 } 8407 } 8408 8409 return false; 8410 } 8411 8412 private static int desired(Layout layout) { 8413 int n = layout.getLineCount(); 8414 CharSequence text = layout.getText(); 8415 float max = 0; 8416 8417 // if any line was wrapped, we can't use it. 8418 // but it's ok for the last line not to have a newline 8419 8420 for (int i = 0; i < n - 1; i++) { 8421 if (text.charAt(layout.getLineEnd(i) - 1) != '\n') { 8422 return -1; 8423 } 8424 } 8425 8426 for (int i = 0; i < n; i++) { 8427 max = Math.max(max, layout.getLineWidth(i)); 8428 } 8429 8430 return (int) Math.ceil(max); 8431 } 8432 8433 /** 8434 * Set whether the TextView includes extra top and bottom padding to make 8435 * room for accents that go above the normal ascent and descent. 8436 * The default is true. 8437 * 8438 * @see #getIncludeFontPadding() 8439 * 8440 * @attr ref android.R.styleable#TextView_includeFontPadding 8441 */ 8442 public void setIncludeFontPadding(boolean includepad) { 8443 if (mIncludePad != includepad) { 8444 mIncludePad = includepad; 8445 8446 if (mLayout != null) { 8447 nullLayouts(); 8448 requestLayout(); 8449 invalidate(); 8450 } 8451 } 8452 } 8453 8454 /** 8455 * Gets whether the TextView includes extra top and bottom padding to make 8456 * room for accents that go above the normal ascent and descent. 8457 * 8458 * @see #setIncludeFontPadding(boolean) 8459 * 8460 * @attr ref android.R.styleable#TextView_includeFontPadding 8461 */ 8462 public boolean getIncludeFontPadding() { 8463 return mIncludePad; 8464 } 8465 8466 /** @hide */ 8467 @VisibleForTesting 8468 public static final BoringLayout.Metrics UNKNOWN_BORING = new BoringLayout.Metrics(); 8469 8470 @Override 8471 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 8472 int widthMode = MeasureSpec.getMode(widthMeasureSpec); 8473 int heightMode = MeasureSpec.getMode(heightMeasureSpec); 8474 int widthSize = MeasureSpec.getSize(widthMeasureSpec); 8475 int heightSize = MeasureSpec.getSize(heightMeasureSpec); 8476 8477 int width; 8478 int height; 8479 8480 BoringLayout.Metrics boring = UNKNOWN_BORING; 8481 BoringLayout.Metrics hintBoring = UNKNOWN_BORING; 8482 8483 if (mTextDir == null) { 8484 mTextDir = getTextDirectionHeuristic(); 8485 } 8486 8487 int des = -1; 8488 boolean fromexisting = false; 8489 final float widthLimit = (widthMode == MeasureSpec.AT_MOST) 8490 ? (float) widthSize : Float.MAX_VALUE; 8491 8492 if (widthMode == MeasureSpec.EXACTLY) { 8493 // Parent has told us how big to be. So be it. 8494 width = widthSize; 8495 } else { 8496 if (mLayout != null && mEllipsize == null) { 8497 des = desired(mLayout); 8498 } 8499 8500 if (des < 0) { 8501 boring = BoringLayout.isBoring(mTransformed, mTextPaint, mTextDir, mBoring); 8502 if (boring != null) { 8503 mBoring = boring; 8504 } 8505 } else { 8506 fromexisting = true; 8507 } 8508 8509 if (boring == null || boring == UNKNOWN_BORING) { 8510 if (des < 0) { 8511 des = (int) Math.ceil(Layout.getDesiredWidthWithLimit(mTransformed, 0, 8512 mTransformed.length(), mTextPaint, mTextDir, widthLimit)); 8513 } 8514 width = des; 8515 } else { 8516 width = boring.width; 8517 } 8518 8519 final Drawables dr = mDrawables; 8520 if (dr != null) { 8521 width = Math.max(width, dr.mDrawableWidthTop); 8522 width = Math.max(width, dr.mDrawableWidthBottom); 8523 } 8524 8525 if (mHint != null) { 8526 int hintDes = -1; 8527 int hintWidth; 8528 8529 if (mHintLayout != null && mEllipsize == null) { 8530 hintDes = desired(mHintLayout); 8531 } 8532 8533 if (hintDes < 0) { 8534 hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mTextDir, mHintBoring); 8535 if (hintBoring != null) { 8536 mHintBoring = hintBoring; 8537 } 8538 } 8539 8540 if (hintBoring == null || hintBoring == UNKNOWN_BORING) { 8541 if (hintDes < 0) { 8542 hintDes = (int) Math.ceil(Layout.getDesiredWidthWithLimit(mHint, 0, 8543 mHint.length(), mTextPaint, mTextDir, widthLimit)); 8544 } 8545 hintWidth = hintDes; 8546 } else { 8547 hintWidth = hintBoring.width; 8548 } 8549 8550 if (hintWidth > width) { 8551 width = hintWidth; 8552 } 8553 } 8554 8555 width += getCompoundPaddingLeft() + getCompoundPaddingRight(); 8556 8557 if (mMaxWidthMode == EMS) { 8558 width = Math.min(width, mMaxWidth * getLineHeight()); 8559 } else { 8560 width = Math.min(width, mMaxWidth); 8561 } 8562 8563 if (mMinWidthMode == EMS) { 8564 width = Math.max(width, mMinWidth * getLineHeight()); 8565 } else { 8566 width = Math.max(width, mMinWidth); 8567 } 8568 8569 // Check against our minimum width 8570 width = Math.max(width, getSuggestedMinimumWidth()); 8571 8572 if (widthMode == MeasureSpec.AT_MOST) { 8573 width = Math.min(widthSize, width); 8574 } 8575 } 8576 8577 int want = width - getCompoundPaddingLeft() - getCompoundPaddingRight(); 8578 int unpaddedWidth = want; 8579 8580 if (mHorizontallyScrolling) want = VERY_WIDE; 8581 8582 int hintWant = want; 8583 int hintWidth = (mHintLayout == null) ? hintWant : mHintLayout.getWidth(); 8584 8585 if (mLayout == null) { 8586 makeNewLayout(want, hintWant, boring, hintBoring, 8587 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 8588 } else { 8589 final boolean layoutChanged = (mLayout.getWidth() != want) || (hintWidth != hintWant) 8590 || (mLayout.getEllipsizedWidth() 8591 != width - getCompoundPaddingLeft() - getCompoundPaddingRight()); 8592 8593 final boolean widthChanged = (mHint == null) && (mEllipsize == null) 8594 && (want > mLayout.getWidth()) 8595 && (mLayout instanceof BoringLayout 8596 || (fromexisting && des >= 0 && des <= want)); 8597 8598 final boolean maximumChanged = (mMaxMode != mOldMaxMode) || (mMaximum != mOldMaximum); 8599 8600 if (layoutChanged || maximumChanged) { 8601 if (!maximumChanged && widthChanged) { 8602 mLayout.increaseWidthTo(want); 8603 } else { 8604 makeNewLayout(want, hintWant, boring, hintBoring, 8605 width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false); 8606 } 8607 } else { 8608 // Nothing has changed 8609 } 8610 } 8611 8612 if (heightMode == MeasureSpec.EXACTLY) { 8613 // Parent has told us how big to be. So be it. 8614 height = heightSize; 8615 mDesiredHeightAtMeasure = -1; 8616 } else { 8617 int desired = getDesiredHeight(); 8618 8619 height = desired; 8620 mDesiredHeightAtMeasure = desired; 8621 8622 if (heightMode == MeasureSpec.AT_MOST) { 8623 height = Math.min(desired, heightSize); 8624 } 8625 } 8626 8627 int unpaddedHeight = height - getCompoundPaddingTop() - getCompoundPaddingBottom(); 8628 if (mMaxMode == LINES && mLayout.getLineCount() > mMaximum) { 8629 unpaddedHeight = Math.min(unpaddedHeight, mLayout.getLineTop(mMaximum)); 8630 } 8631 8632 /* 8633 * We didn't let makeNewLayout() register to bring the cursor into view, 8634 * so do it here if there is any possibility that it is needed. 8635 */ 8636 if (mMovement != null 8637 || mLayout.getWidth() > unpaddedWidth 8638 || mLayout.getHeight() > unpaddedHeight) { 8639 registerForPreDraw(); 8640 } else { 8641 scrollTo(0, 0); 8642 } 8643 8644 setMeasuredDimension(width, height); 8645 } 8646 8647 /** 8648 * Automatically computes and sets the text size. 8649 */ 8650 private void autoSizeText() { 8651 if (!isAutoSizeEnabled()) { 8652 return; 8653 } 8654 8655 if (mNeedsAutoSizeText) { 8656 if (getMeasuredWidth() <= 0 || getMeasuredHeight() <= 0) { 8657 return; 8658 } 8659 8660 final int availableWidth = mHorizontallyScrolling 8661 ? VERY_WIDE 8662 : getMeasuredWidth() - getTotalPaddingLeft() - getTotalPaddingRight(); 8663 final int availableHeight = getMeasuredHeight() - getExtendedPaddingBottom() 8664 - getExtendedPaddingTop(); 8665 8666 if (availableWidth <= 0 || availableHeight <= 0) { 8667 return; 8668 } 8669 8670 synchronized (TEMP_RECTF) { 8671 TEMP_RECTF.setEmpty(); 8672 TEMP_RECTF.right = availableWidth; 8673 TEMP_RECTF.bottom = availableHeight; 8674 final float optimalTextSize = findLargestTextSizeWhichFits(TEMP_RECTF); 8675 8676 if (optimalTextSize != getTextSize()) { 8677 setTextSizeInternal(TypedValue.COMPLEX_UNIT_PX, optimalTextSize, 8678 false /* shouldRequestLayout */); 8679 8680 makeNewLayout(availableWidth, 0 /* hintWidth */, UNKNOWN_BORING, UNKNOWN_BORING, 8681 mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(), 8682 false /* bringIntoView */); 8683 } 8684 } 8685 } 8686 // Always try to auto-size if enabled. Functions that do not want to trigger auto-sizing 8687 // after the next layout pass should set this to false. 8688 mNeedsAutoSizeText = true; 8689 } 8690 8691 /** 8692 * Performs a binary search to find the largest text size that will still fit within the size 8693 * available to this view. 8694 */ 8695 private int findLargestTextSizeWhichFits(RectF availableSpace) { 8696 final int sizesCount = mAutoSizeTextSizesInPx.length; 8697 if (sizesCount == 0) { 8698 throw new IllegalStateException("No available text sizes to choose from."); 8699 } 8700 8701 int bestSizeIndex = 0; 8702 int lowIndex = bestSizeIndex + 1; 8703 int highIndex = sizesCount - 1; 8704 int sizeToTryIndex; 8705 while (lowIndex <= highIndex) { 8706 sizeToTryIndex = (lowIndex + highIndex) / 2; 8707 if (suggestedSizeFitsInSpace(mAutoSizeTextSizesInPx[sizeToTryIndex], availableSpace)) { 8708 bestSizeIndex = lowIndex; 8709 lowIndex = sizeToTryIndex + 1; 8710 } else { 8711 highIndex = sizeToTryIndex - 1; 8712 bestSizeIndex = highIndex; 8713 } 8714 } 8715 8716 return mAutoSizeTextSizesInPx[bestSizeIndex]; 8717 } 8718 8719 private boolean suggestedSizeFitsInSpace(int suggestedSizeInPx, RectF availableSpace) { 8720 final CharSequence text = mTransformed != null 8721 ? mTransformed 8722 : getText(); 8723 final int maxLines = getMaxLines(); 8724 if (mTempTextPaint == null) { 8725 mTempTextPaint = new TextPaint(); 8726 } else { 8727 mTempTextPaint.reset(); 8728 } 8729 mTempTextPaint.set(getPaint()); 8730 mTempTextPaint.setTextSize(suggestedSizeInPx); 8731 8732 final StaticLayout.Builder layoutBuilder = StaticLayout.Builder.obtain( 8733 text, 0, text.length(), mTempTextPaint, Math.round(availableSpace.right)); 8734 8735 layoutBuilder.setAlignment(getLayoutAlignment()) 8736 .setLineSpacing(getLineSpacingExtra(), getLineSpacingMultiplier()) 8737 .setIncludePad(getIncludeFontPadding()) 8738 .setUseLineSpacingFromFallbacks(mUseFallbackLineSpacing) 8739 .setBreakStrategy(getBreakStrategy()) 8740 .setHyphenationFrequency(getHyphenationFrequency()) 8741 .setJustificationMode(getJustificationMode()) 8742 .setMaxLines(mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE) 8743 .setTextDirection(getTextDirectionHeuristic()); 8744 8745 final StaticLayout layout = layoutBuilder.build(); 8746 8747 // Lines overflow. 8748 if (maxLines != -1 && layout.getLineCount() > maxLines) { 8749 return false; 8750 } 8751 8752 // Height overflow. 8753 if (layout.getHeight() > availableSpace.bottom) { 8754 return false; 8755 } 8756 8757 return true; 8758 } 8759 8760 private int getDesiredHeight() { 8761 return Math.max( 8762 getDesiredHeight(mLayout, true), 8763 getDesiredHeight(mHintLayout, mEllipsize != null)); 8764 } 8765 8766 private int getDesiredHeight(Layout layout, boolean cap) { 8767 if (layout == null) { 8768 return 0; 8769 } 8770 8771 /* 8772 * Don't cap the hint to a certain number of lines. 8773 * (Do cap it, though, if we have a maximum pixel height.) 8774 */ 8775 int desired = layout.getHeight(cap); 8776 8777 final Drawables dr = mDrawables; 8778 if (dr != null) { 8779 desired = Math.max(desired, dr.mDrawableHeightLeft); 8780 desired = Math.max(desired, dr.mDrawableHeightRight); 8781 } 8782 8783 int linecount = layout.getLineCount(); 8784 final int padding = getCompoundPaddingTop() + getCompoundPaddingBottom(); 8785 desired += padding; 8786 8787 if (mMaxMode != LINES) { 8788 desired = Math.min(desired, mMaximum); 8789 } else if (cap && linecount > mMaximum && (layout instanceof DynamicLayout 8790 || layout instanceof BoringLayout)) { 8791 desired = layout.getLineTop(mMaximum); 8792 8793 if (dr != null) { 8794 desired = Math.max(desired, dr.mDrawableHeightLeft); 8795 desired = Math.max(desired, dr.mDrawableHeightRight); 8796 } 8797 8798 desired += padding; 8799 linecount = mMaximum; 8800 } 8801 8802 if (mMinMode == LINES) { 8803 if (linecount < mMinimum) { 8804 desired += getLineHeight() * (mMinimum - linecount); 8805 } 8806 } else { 8807 desired = Math.max(desired, mMinimum); 8808 } 8809 8810 // Check against our minimum height 8811 desired = Math.max(desired, getSuggestedMinimumHeight()); 8812 8813 return desired; 8814 } 8815 8816 /** 8817 * Check whether a change to the existing text layout requires a 8818 * new view layout. 8819 */ 8820 private void checkForResize() { 8821 boolean sizeChanged = false; 8822 8823 if (mLayout != null) { 8824 // Check if our width changed 8825 if (mLayoutParams.width == LayoutParams.WRAP_CONTENT) { 8826 sizeChanged = true; 8827 invalidate(); 8828 } 8829 8830 // Check if our height changed 8831 if (mLayoutParams.height == LayoutParams.WRAP_CONTENT) { 8832 int desiredHeight = getDesiredHeight(); 8833 8834 if (desiredHeight != this.getHeight()) { 8835 sizeChanged = true; 8836 } 8837 } else if (mLayoutParams.height == LayoutParams.MATCH_PARENT) { 8838 if (mDesiredHeightAtMeasure >= 0) { 8839 int desiredHeight = getDesiredHeight(); 8840 8841 if (desiredHeight != mDesiredHeightAtMeasure) { 8842 sizeChanged = true; 8843 } 8844 } 8845 } 8846 } 8847 8848 if (sizeChanged) { 8849 requestLayout(); 8850 // caller will have already invalidated 8851 } 8852 } 8853 8854 /** 8855 * Check whether entirely new text requires a new view layout 8856 * or merely a new text layout. 8857 */ 8858 private void checkForRelayout() { 8859 // If we have a fixed width, we can just swap in a new text layout 8860 // if the text height stays the same or if the view height is fixed. 8861 8862 if ((mLayoutParams.width != LayoutParams.WRAP_CONTENT 8863 || (mMaxWidthMode == mMinWidthMode && mMaxWidth == mMinWidth)) 8864 && (mHint == null || mHintLayout != null) 8865 && (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight() > 0)) { 8866 // Static width, so try making a new text layout. 8867 8868 int oldht = mLayout.getHeight(); 8869 int want = mLayout.getWidth(); 8870 int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth(); 8871 8872 /* 8873 * No need to bring the text into view, since the size is not 8874 * changing (unless we do the requestLayout(), in which case it 8875 * will happen at measure). 8876 */ 8877 makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING, 8878 mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(), 8879 false); 8880 8881 if (mEllipsize != TextUtils.TruncateAt.MARQUEE) { 8882 // In a fixed-height view, so use our new text layout. 8883 if (mLayoutParams.height != LayoutParams.WRAP_CONTENT 8884 && mLayoutParams.height != LayoutParams.MATCH_PARENT) { 8885 autoSizeText(); 8886 invalidate(); 8887 return; 8888 } 8889 8890 // Dynamic height, but height has stayed the same, 8891 // so use our new text layout. 8892 if (mLayout.getHeight() == oldht 8893 && (mHintLayout == null || mHintLayout.getHeight() == oldht)) { 8894 autoSizeText(); 8895 invalidate(); 8896 return; 8897 } 8898 } 8899 8900 // We lose: the height has changed and we have a dynamic height. 8901 // Request a new view layout using our new text layout. 8902 requestLayout(); 8903 invalidate(); 8904 } else { 8905 // Dynamic width, so we have no choice but to request a new 8906 // view layout with a new text layout. 8907 nullLayouts(); 8908 requestLayout(); 8909 invalidate(); 8910 } 8911 } 8912 8913 @Override 8914 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 8915 super.onLayout(changed, left, top, right, bottom); 8916 if (mDeferScroll >= 0) { 8917 int curs = mDeferScroll; 8918 mDeferScroll = -1; 8919 bringPointIntoView(Math.min(curs, mText.length())); 8920 } 8921 // Call auto-size after the width and height have been calculated. 8922 autoSizeText(); 8923 } 8924 8925 private boolean isShowingHint() { 8926 return TextUtils.isEmpty(mText) && !TextUtils.isEmpty(mHint); 8927 } 8928 8929 /** 8930 * Returns true if anything changed. 8931 */ 8932 private boolean bringTextIntoView() { 8933 Layout layout = isShowingHint() ? mHintLayout : mLayout; 8934 int line = 0; 8935 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 8936 line = layout.getLineCount() - 1; 8937 } 8938 8939 Layout.Alignment a = layout.getParagraphAlignment(line); 8940 int dir = layout.getParagraphDirection(line); 8941 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 8942 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 8943 int ht = layout.getHeight(); 8944 8945 int scrollx, scrolly; 8946 8947 // Convert to left, center, or right alignment. 8948 if (a == Layout.Alignment.ALIGN_NORMAL) { 8949 a = dir == Layout.DIR_LEFT_TO_RIGHT 8950 ? Layout.Alignment.ALIGN_LEFT : Layout.Alignment.ALIGN_RIGHT; 8951 } else if (a == Layout.Alignment.ALIGN_OPPOSITE) { 8952 a = dir == Layout.DIR_LEFT_TO_RIGHT 8953 ? Layout.Alignment.ALIGN_RIGHT : Layout.Alignment.ALIGN_LEFT; 8954 } 8955 8956 if (a == Layout.Alignment.ALIGN_CENTER) { 8957 /* 8958 * Keep centered if possible, or, if it is too wide to fit, 8959 * keep leading edge in view. 8960 */ 8961 8962 int left = (int) Math.floor(layout.getLineLeft(line)); 8963 int right = (int) Math.ceil(layout.getLineRight(line)); 8964 8965 if (right - left < hspace) { 8966 scrollx = (right + left) / 2 - hspace / 2; 8967 } else { 8968 if (dir < 0) { 8969 scrollx = right - hspace; 8970 } else { 8971 scrollx = left; 8972 } 8973 } 8974 } else if (a == Layout.Alignment.ALIGN_RIGHT) { 8975 int right = (int) Math.ceil(layout.getLineRight(line)); 8976 scrollx = right - hspace; 8977 } else { // a == Layout.Alignment.ALIGN_LEFT (will also be the default) 8978 scrollx = (int) Math.floor(layout.getLineLeft(line)); 8979 } 8980 8981 if (ht < vspace) { 8982 scrolly = 0; 8983 } else { 8984 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 8985 scrolly = ht - vspace; 8986 } else { 8987 scrolly = 0; 8988 } 8989 } 8990 8991 if (scrollx != mScrollX || scrolly != mScrollY) { 8992 scrollTo(scrollx, scrolly); 8993 return true; 8994 } else { 8995 return false; 8996 } 8997 } 8998 8999 /** 9000 * Move the point, specified by the offset, into the view if it is needed. 9001 * This has to be called after layout. Returns true if anything changed. 9002 */ 9003 public boolean bringPointIntoView(int offset) { 9004 if (isLayoutRequested()) { 9005 mDeferScroll = offset; 9006 return false; 9007 } 9008 boolean changed = false; 9009 9010 Layout layout = isShowingHint() ? mHintLayout : mLayout; 9011 9012 if (layout == null) return changed; 9013 9014 int line = layout.getLineForOffset(offset); 9015 9016 int grav; 9017 9018 switch (layout.getParagraphAlignment(line)) { 9019 case ALIGN_LEFT: 9020 grav = 1; 9021 break; 9022 case ALIGN_RIGHT: 9023 grav = -1; 9024 break; 9025 case ALIGN_NORMAL: 9026 grav = layout.getParagraphDirection(line); 9027 break; 9028 case ALIGN_OPPOSITE: 9029 grav = -layout.getParagraphDirection(line); 9030 break; 9031 case ALIGN_CENTER: 9032 default: 9033 grav = 0; 9034 break; 9035 } 9036 9037 // We only want to clamp the cursor to fit within the layout width 9038 // in left-to-right modes, because in a right to left alignment, 9039 // we want to scroll to keep the line-right on the screen, as other 9040 // lines are likely to have text flush with the right margin, which 9041 // we want to keep visible. 9042 // A better long-term solution would probably be to measure both 9043 // the full line and a blank-trimmed version, and, for example, use 9044 // the latter measurement for centering and right alignment, but for 9045 // the time being we only implement the cursor clamping in left to 9046 // right where it is most likely to be annoying. 9047 final boolean clamped = grav > 0; 9048 // FIXME: Is it okay to truncate this, or should we round? 9049 final int x = (int) layout.getPrimaryHorizontal(offset, clamped); 9050 final int top = layout.getLineTop(line); 9051 final int bottom = layout.getLineTop(line + 1); 9052 9053 int left = (int) Math.floor(layout.getLineLeft(line)); 9054 int right = (int) Math.ceil(layout.getLineRight(line)); 9055 int ht = layout.getHeight(); 9056 9057 int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 9058 int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 9059 if (!mHorizontallyScrolling && right - left > hspace && right > x) { 9060 // If cursor has been clamped, make sure we don't scroll. 9061 right = Math.max(x, left + hspace); 9062 } 9063 9064 int hslack = (bottom - top) / 2; 9065 int vslack = hslack; 9066 9067 if (vslack > vspace / 4) { 9068 vslack = vspace / 4; 9069 } 9070 if (hslack > hspace / 4) { 9071 hslack = hspace / 4; 9072 } 9073 9074 int hs = mScrollX; 9075 int vs = mScrollY; 9076 9077 if (top - vs < vslack) { 9078 vs = top - vslack; 9079 } 9080 if (bottom - vs > vspace - vslack) { 9081 vs = bottom - (vspace - vslack); 9082 } 9083 if (ht - vs < vspace) { 9084 vs = ht - vspace; 9085 } 9086 if (0 - vs > 0) { 9087 vs = 0; 9088 } 9089 9090 if (grav != 0) { 9091 if (x - hs < hslack) { 9092 hs = x - hslack; 9093 } 9094 if (x - hs > hspace - hslack) { 9095 hs = x - (hspace - hslack); 9096 } 9097 } 9098 9099 if (grav < 0) { 9100 if (left - hs > 0) { 9101 hs = left; 9102 } 9103 if (right - hs < hspace) { 9104 hs = right - hspace; 9105 } 9106 } else if (grav > 0) { 9107 if (right - hs < hspace) { 9108 hs = right - hspace; 9109 } 9110 if (left - hs > 0) { 9111 hs = left; 9112 } 9113 } else /* grav == 0 */ { 9114 if (right - left <= hspace) { 9115 /* 9116 * If the entire text fits, center it exactly. 9117 */ 9118 hs = left - (hspace - (right - left)) / 2; 9119 } else if (x > right - hslack) { 9120 /* 9121 * If we are near the right edge, keep the right edge 9122 * at the edge of the view. 9123 */ 9124 hs = right - hspace; 9125 } else if (x < left + hslack) { 9126 /* 9127 * If we are near the left edge, keep the left edge 9128 * at the edge of the view. 9129 */ 9130 hs = left; 9131 } else if (left > hs) { 9132 /* 9133 * Is there whitespace visible at the left? Fix it if so. 9134 */ 9135 hs = left; 9136 } else if (right < hs + hspace) { 9137 /* 9138 * Is there whitespace visible at the right? Fix it if so. 9139 */ 9140 hs = right - hspace; 9141 } else { 9142 /* 9143 * Otherwise, float as needed. 9144 */ 9145 if (x - hs < hslack) { 9146 hs = x - hslack; 9147 } 9148 if (x - hs > hspace - hslack) { 9149 hs = x - (hspace - hslack); 9150 } 9151 } 9152 } 9153 9154 if (hs != mScrollX || vs != mScrollY) { 9155 if (mScroller == null) { 9156 scrollTo(hs, vs); 9157 } else { 9158 long duration = AnimationUtils.currentAnimationTimeMillis() - mLastScroll; 9159 int dx = hs - mScrollX; 9160 int dy = vs - mScrollY; 9161 9162 if (duration > ANIMATED_SCROLL_GAP) { 9163 mScroller.startScroll(mScrollX, mScrollY, dx, dy); 9164 awakenScrollBars(mScroller.getDuration()); 9165 invalidate(); 9166 } else { 9167 if (!mScroller.isFinished()) { 9168 mScroller.abortAnimation(); 9169 } 9170 9171 scrollBy(dx, dy); 9172 } 9173 9174 mLastScroll = AnimationUtils.currentAnimationTimeMillis(); 9175 } 9176 9177 changed = true; 9178 } 9179 9180 if (isFocused()) { 9181 // This offsets because getInterestingRect() is in terms of viewport coordinates, but 9182 // requestRectangleOnScreen() is in terms of content coordinates. 9183 9184 // The offsets here are to ensure the rectangle we are using is 9185 // within our view bounds, in case the cursor is on the far left 9186 // or right. If it isn't withing the bounds, then this request 9187 // will be ignored. 9188 if (mTempRect == null) mTempRect = new Rect(); 9189 mTempRect.set(x - 2, top, x + 2, bottom); 9190 getInterestingRect(mTempRect, line); 9191 mTempRect.offset(mScrollX, mScrollY); 9192 9193 if (requestRectangleOnScreen(mTempRect)) { 9194 changed = true; 9195 } 9196 } 9197 9198 return changed; 9199 } 9200 9201 /** 9202 * Move the cursor, if needed, so that it is at an offset that is visible 9203 * to the user. This will not move the cursor if it represents more than 9204 * one character (a selection range). This will only work if the 9205 * TextView contains spannable text; otherwise it will do nothing. 9206 * 9207 * @return True if the cursor was actually moved, false otherwise. 9208 */ 9209 public boolean moveCursorToVisibleOffset() { 9210 if (!(mText instanceof Spannable)) { 9211 return false; 9212 } 9213 int start = getSelectionStart(); 9214 int end = getSelectionEnd(); 9215 if (start != end) { 9216 return false; 9217 } 9218 9219 // First: make sure the line is visible on screen: 9220 9221 int line = mLayout.getLineForOffset(start); 9222 9223 final int top = mLayout.getLineTop(line); 9224 final int bottom = mLayout.getLineTop(line + 1); 9225 final int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom(); 9226 int vslack = (bottom - top) / 2; 9227 if (vslack > vspace / 4) { 9228 vslack = vspace / 4; 9229 } 9230 final int vs = mScrollY; 9231 9232 if (top < (vs + vslack)) { 9233 line = mLayout.getLineForVertical(vs + vslack + (bottom - top)); 9234 } else if (bottom > (vspace + vs - vslack)) { 9235 line = mLayout.getLineForVertical(vspace + vs - vslack - (bottom - top)); 9236 } 9237 9238 // Next: make sure the character is visible on screen: 9239 9240 final int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 9241 final int hs = mScrollX; 9242 final int leftChar = mLayout.getOffsetForHorizontal(line, hs); 9243 final int rightChar = mLayout.getOffsetForHorizontal(line, hspace + hs); 9244 9245 // line might contain bidirectional text 9246 final int lowChar = leftChar < rightChar ? leftChar : rightChar; 9247 final int highChar = leftChar > rightChar ? leftChar : rightChar; 9248 9249 int newStart = start; 9250 if (newStart < lowChar) { 9251 newStart = lowChar; 9252 } else if (newStart > highChar) { 9253 newStart = highChar; 9254 } 9255 9256 if (newStart != start) { 9257 Selection.setSelection(mSpannable, newStart); 9258 return true; 9259 } 9260 9261 return false; 9262 } 9263 9264 @Override 9265 public void computeScroll() { 9266 if (mScroller != null) { 9267 if (mScroller.computeScrollOffset()) { 9268 mScrollX = mScroller.getCurrX(); 9269 mScrollY = mScroller.getCurrY(); 9270 invalidateParentCaches(); 9271 postInvalidate(); // So we draw again 9272 } 9273 } 9274 } 9275 9276 private void getInterestingRect(Rect r, int line) { 9277 convertFromViewportToContentCoordinates(r); 9278 9279 // Rectangle can can be expanded on first and last line to take 9280 // padding into account. 9281 // TODO Take left/right padding into account too? 9282 if (line == 0) r.top -= getExtendedPaddingTop(); 9283 if (line == mLayout.getLineCount() - 1) r.bottom += getExtendedPaddingBottom(); 9284 } 9285 9286 private void convertFromViewportToContentCoordinates(Rect r) { 9287 final int horizontalOffset = viewportToContentHorizontalOffset(); 9288 r.left += horizontalOffset; 9289 r.right += horizontalOffset; 9290 9291 final int verticalOffset = viewportToContentVerticalOffset(); 9292 r.top += verticalOffset; 9293 r.bottom += verticalOffset; 9294 } 9295 9296 int viewportToContentHorizontalOffset() { 9297 return getCompoundPaddingLeft() - mScrollX; 9298 } 9299 9300 int viewportToContentVerticalOffset() { 9301 int offset = getExtendedPaddingTop() - mScrollY; 9302 if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) { 9303 offset += getVerticalOffset(false); 9304 } 9305 return offset; 9306 } 9307 9308 @Override 9309 public void debug(int depth) { 9310 super.debug(depth); 9311 9312 String output = debugIndent(depth); 9313 output += "frame={" + mLeft + ", " + mTop + ", " + mRight 9314 + ", " + mBottom + "} scroll={" + mScrollX + ", " + mScrollY 9315 + "} "; 9316 9317 if (mText != null) { 9318 9319 output += "mText=\"" + mText + "\" "; 9320 if (mLayout != null) { 9321 output += "mLayout width=" + mLayout.getWidth() 9322 + " height=" + mLayout.getHeight(); 9323 } 9324 } else { 9325 output += "mText=NULL"; 9326 } 9327 Log.d(VIEW_LOG_TAG, output); 9328 } 9329 9330 /** 9331 * Convenience for {@link Selection#getSelectionStart}. 9332 */ 9333 @ViewDebug.ExportedProperty(category = "text") 9334 public int getSelectionStart() { 9335 return Selection.getSelectionStart(getText()); 9336 } 9337 9338 /** 9339 * Convenience for {@link Selection#getSelectionEnd}. 9340 */ 9341 @ViewDebug.ExportedProperty(category = "text") 9342 public int getSelectionEnd() { 9343 return Selection.getSelectionEnd(getText()); 9344 } 9345 9346 /** 9347 * Return true iff there is a selection inside this text view. 9348 */ 9349 public boolean hasSelection() { 9350 final int selectionStart = getSelectionStart(); 9351 final int selectionEnd = getSelectionEnd(); 9352 9353 return selectionStart >= 0 && selectionEnd > 0 && selectionStart != selectionEnd; 9354 } 9355 9356 String getSelectedText() { 9357 if (!hasSelection()) { 9358 return null; 9359 } 9360 9361 final int start = getSelectionStart(); 9362 final int end = getSelectionEnd(); 9363 return String.valueOf( 9364 start > end ? mText.subSequence(end, start) : mText.subSequence(start, end)); 9365 } 9366 9367 /** 9368 * Sets the properties of this field (lines, horizontally scrolling, 9369 * transformation method) to be for a single-line input. 9370 * 9371 * @attr ref android.R.styleable#TextView_singleLine 9372 */ 9373 public void setSingleLine() { 9374 setSingleLine(true); 9375 } 9376 9377 /** 9378 * Sets the properties of this field to transform input to ALL CAPS 9379 * display. This may use a "small caps" formatting if available. 9380 * This setting will be ignored if this field is editable or selectable. 9381 * 9382 * This call replaces the current transformation method. Disabling this 9383 * will not necessarily restore the previous behavior from before this 9384 * was enabled. 9385 * 9386 * @see #setTransformationMethod(TransformationMethod) 9387 * @attr ref android.R.styleable#TextView_textAllCaps 9388 */ 9389 public void setAllCaps(boolean allCaps) { 9390 if (allCaps) { 9391 setTransformationMethod(new AllCapsTransformationMethod(getContext())); 9392 } else { 9393 setTransformationMethod(null); 9394 } 9395 } 9396 9397 /** 9398 * 9399 * Checks whether the transformation method applied to this TextView is set to ALL CAPS. 9400 * @return Whether the current transformation method is for ALL CAPS. 9401 * 9402 * @see #setAllCaps(boolean) 9403 * @see #setTransformationMethod(TransformationMethod) 9404 */ 9405 public boolean isAllCaps() { 9406 final TransformationMethod method = getTransformationMethod(); 9407 return method != null && method instanceof AllCapsTransformationMethod; 9408 } 9409 9410 /** 9411 * If true, sets the properties of this field (number of lines, horizontally scrolling, 9412 * transformation method) to be for a single-line input; if false, restores these to the default 9413 * conditions. 9414 * 9415 * Note that the default conditions are not necessarily those that were in effect prior this 9416 * method, and you may want to reset these properties to your custom values. 9417 * 9418 * @attr ref android.R.styleable#TextView_singleLine 9419 */ 9420 @android.view.RemotableViewMethod 9421 public void setSingleLine(boolean singleLine) { 9422 // Could be used, but may break backward compatibility. 9423 // if (mSingleLine == singleLine) return; 9424 setInputTypeSingleLine(singleLine); 9425 applySingleLine(singleLine, true, true); 9426 } 9427 9428 /** 9429 * Adds or remove the EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE on the mInputType. 9430 * @param singleLine 9431 */ 9432 private void setInputTypeSingleLine(boolean singleLine) { 9433 if (mEditor != null 9434 && (mEditor.mInputType & EditorInfo.TYPE_MASK_CLASS) 9435 == EditorInfo.TYPE_CLASS_TEXT) { 9436 if (singleLine) { 9437 mEditor.mInputType &= ~EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 9438 } else { 9439 mEditor.mInputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE; 9440 } 9441 } 9442 } 9443 9444 private void applySingleLine(boolean singleLine, boolean applyTransformation, 9445 boolean changeMaxLines) { 9446 mSingleLine = singleLine; 9447 if (singleLine) { 9448 setLines(1); 9449 setHorizontallyScrolling(true); 9450 if (applyTransformation) { 9451 setTransformationMethod(SingleLineTransformationMethod.getInstance()); 9452 } 9453 } else { 9454 if (changeMaxLines) { 9455 setMaxLines(Integer.MAX_VALUE); 9456 } 9457 setHorizontallyScrolling(false); 9458 if (applyTransformation) { 9459 setTransformationMethod(null); 9460 } 9461 } 9462 } 9463 9464 /** 9465 * Causes words in the text that are longer than the view's width 9466 * to be ellipsized instead of broken in the middle. You may also 9467 * want to {@link #setSingleLine} or {@link #setHorizontallyScrolling} 9468 * to constrain the text to a single line. Use <code>null</code> 9469 * to turn off ellipsizing. 9470 * 9471 * If {@link #setMaxLines} has been used to set two or more lines, 9472 * only {@link android.text.TextUtils.TruncateAt#END} and 9473 * {@link android.text.TextUtils.TruncateAt#MARQUEE} are supported 9474 * (other ellipsizing types will not do anything). 9475 * 9476 * @attr ref android.R.styleable#TextView_ellipsize 9477 */ 9478 public void setEllipsize(TextUtils.TruncateAt where) { 9479 // TruncateAt is an enum. != comparison is ok between these singleton objects. 9480 if (mEllipsize != where) { 9481 mEllipsize = where; 9482 9483 if (mLayout != null) { 9484 nullLayouts(); 9485 requestLayout(); 9486 invalidate(); 9487 } 9488 } 9489 } 9490 9491 /** 9492 * Sets how many times to repeat the marquee animation. Only applied if the 9493 * TextView has marquee enabled. Set to -1 to repeat indefinitely. 9494 * 9495 * @see #getMarqueeRepeatLimit() 9496 * 9497 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 9498 */ 9499 public void setMarqueeRepeatLimit(int marqueeLimit) { 9500 mMarqueeRepeatLimit = marqueeLimit; 9501 } 9502 9503 /** 9504 * Gets the number of times the marquee animation is repeated. Only meaningful if the 9505 * TextView has marquee enabled. 9506 * 9507 * @return the number of times the marquee animation is repeated. -1 if the animation 9508 * repeats indefinitely 9509 * 9510 * @see #setMarqueeRepeatLimit(int) 9511 * 9512 * @attr ref android.R.styleable#TextView_marqueeRepeatLimit 9513 */ 9514 public int getMarqueeRepeatLimit() { 9515 return mMarqueeRepeatLimit; 9516 } 9517 9518 /** 9519 * Returns where, if anywhere, words that are longer than the view 9520 * is wide should be ellipsized. 9521 */ 9522 @ViewDebug.ExportedProperty 9523 public TextUtils.TruncateAt getEllipsize() { 9524 return mEllipsize; 9525 } 9526 9527 /** 9528 * Set the TextView so that when it takes focus, all the text is 9529 * selected. 9530 * 9531 * @attr ref android.R.styleable#TextView_selectAllOnFocus 9532 */ 9533 @android.view.RemotableViewMethod 9534 public void setSelectAllOnFocus(boolean selectAllOnFocus) { 9535 createEditorIfNeeded(); 9536 mEditor.mSelectAllOnFocus = selectAllOnFocus; 9537 9538 if (selectAllOnFocus && !(mText instanceof Spannable)) { 9539 setText(mText, BufferType.SPANNABLE); 9540 } 9541 } 9542 9543 /** 9544 * Set whether the cursor is visible. The default is true. Note that this property only 9545 * makes sense for editable TextView. 9546 * 9547 * @see #isCursorVisible() 9548 * 9549 * @attr ref android.R.styleable#TextView_cursorVisible 9550 */ 9551 @android.view.RemotableViewMethod 9552 public void setCursorVisible(boolean visible) { 9553 if (visible && mEditor == null) return; // visible is the default value with no edit data 9554 createEditorIfNeeded(); 9555 if (mEditor.mCursorVisible != visible) { 9556 mEditor.mCursorVisible = visible; 9557 invalidate(); 9558 9559 mEditor.makeBlink(); 9560 9561 // InsertionPointCursorController depends on mCursorVisible 9562 mEditor.prepareCursorControllers(); 9563 } 9564 } 9565 9566 /** 9567 * @return whether or not the cursor is visible (assuming this TextView is editable) 9568 * 9569 * @see #setCursorVisible(boolean) 9570 * 9571 * @attr ref android.R.styleable#TextView_cursorVisible 9572 */ 9573 public boolean isCursorVisible() { 9574 // true is the default value 9575 return mEditor == null ? true : mEditor.mCursorVisible; 9576 } 9577 9578 private boolean canMarquee() { 9579 int width = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(); 9580 return width > 0 && (mLayout.getLineWidth(0) > width 9581 || (mMarqueeFadeMode != MARQUEE_FADE_NORMAL && mSavedMarqueeModeLayout != null 9582 && mSavedMarqueeModeLayout.getLineWidth(0) > width)); 9583 } 9584 9585 private void startMarquee() { 9586 // Do not ellipsize EditText 9587 if (getKeyListener() != null) return; 9588 9589 if (compressText(getWidth() - getCompoundPaddingLeft() - getCompoundPaddingRight())) { 9590 return; 9591 } 9592 9593 if ((mMarquee == null || mMarquee.isStopped()) && (isFocused() || isSelected()) 9594 && getLineCount() == 1 && canMarquee()) { 9595 9596 if (mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) { 9597 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_FADE; 9598 final Layout tmp = mLayout; 9599 mLayout = mSavedMarqueeModeLayout; 9600 mSavedMarqueeModeLayout = tmp; 9601 setHorizontalFadingEdgeEnabled(true); 9602 requestLayout(); 9603 invalidate(); 9604 } 9605 9606 if (mMarquee == null) mMarquee = new Marquee(this); 9607 mMarquee.start(mMarqueeRepeatLimit); 9608 } 9609 } 9610 9611 private void stopMarquee() { 9612 if (mMarquee != null && !mMarquee.isStopped()) { 9613 mMarquee.stop(); 9614 } 9615 9616 if (mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_FADE) { 9617 mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS; 9618 final Layout tmp = mSavedMarqueeModeLayout; 9619 mSavedMarqueeModeLayout = mLayout; 9620 mLayout = tmp; 9621 setHorizontalFadingEdgeEnabled(false); 9622 requestLayout(); 9623 invalidate(); 9624 } 9625 } 9626 9627 private void startStopMarquee(boolean start) { 9628 if (mEllipsize == TextUtils.TruncateAt.MARQUEE) { 9629 if (start) { 9630 startMarquee(); 9631 } else { 9632 stopMarquee(); 9633 } 9634 } 9635 } 9636 9637 /** 9638 * This method is called when the text is changed, in case any subclasses 9639 * would like to know. 9640 * 9641 * Within <code>text</code>, the <code>lengthAfter</code> characters 9642 * beginning at <code>start</code> have just replaced old text that had 9643 * length <code>lengthBefore</code>. It is an error to attempt to make 9644 * changes to <code>text</code> from this callback. 9645 * 9646 * @param text The text the TextView is displaying 9647 * @param start The offset of the start of the range of the text that was 9648 * modified 9649 * @param lengthBefore The length of the former text that has been replaced 9650 * @param lengthAfter The length of the replacement modified text 9651 */ 9652 protected void onTextChanged(CharSequence text, int start, int lengthBefore, int lengthAfter) { 9653 // intentionally empty, template pattern method can be overridden by subclasses 9654 } 9655 9656 /** 9657 * This method is called when the selection has changed, in case any 9658 * subclasses would like to know. 9659 * 9660 * @param selStart The new selection start location. 9661 * @param selEnd The new selection end location. 9662 */ 9663 protected void onSelectionChanged(int selStart, int selEnd) { 9664 sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_TEXT_SELECTION_CHANGED); 9665 } 9666 9667 /** 9668 * Adds a TextWatcher to the list of those whose methods are called 9669 * whenever this TextView's text changes. 9670 * <p> 9671 * In 1.0, the {@link TextWatcher#afterTextChanged} method was erroneously 9672 * not called after {@link #setText} calls. Now, doing {@link #setText} 9673 * if there are any text changed listeners forces the buffer type to 9674 * Editable if it would not otherwise be and does call this method. 9675 */ 9676 public void addTextChangedListener(TextWatcher watcher) { 9677 if (mListeners == null) { 9678 mListeners = new ArrayList<TextWatcher>(); 9679 } 9680 9681 mListeners.add(watcher); 9682 } 9683 9684 /** 9685 * Removes the specified TextWatcher from the list of those whose 9686 * methods are called 9687 * whenever this TextView's text changes. 9688 */ 9689 public void removeTextChangedListener(TextWatcher watcher) { 9690 if (mListeners != null) { 9691 int i = mListeners.indexOf(watcher); 9692 9693 if (i >= 0) { 9694 mListeners.remove(i); 9695 } 9696 } 9697 } 9698 9699 private void sendBeforeTextChanged(CharSequence text, int start, int before, int after) { 9700 if (mListeners != null) { 9701 final ArrayList<TextWatcher> list = mListeners; 9702 final int count = list.size(); 9703 for (int i = 0; i < count; i++) { 9704 list.get(i).beforeTextChanged(text, start, before, after); 9705 } 9706 } 9707 9708 // The spans that are inside or intersect the modified region no longer make sense 9709 removeIntersectingNonAdjacentSpans(start, start + before, SpellCheckSpan.class); 9710 removeIntersectingNonAdjacentSpans(start, start + before, SuggestionSpan.class); 9711 } 9712 9713 // Removes all spans that are inside or actually overlap the start..end range 9714 private <T> void removeIntersectingNonAdjacentSpans(int start, int end, Class<T> type) { 9715 if (!(mText instanceof Editable)) return; 9716 Editable text = (Editable) mText; 9717 9718 T[] spans = text.getSpans(start, end, type); 9719 final int length = spans.length; 9720 for (int i = 0; i < length; i++) { 9721 final int spanStart = text.getSpanStart(spans[i]); 9722 final int spanEnd = text.getSpanEnd(spans[i]); 9723 if (spanEnd == start || spanStart == end) break; 9724 text.removeSpan(spans[i]); 9725 } 9726 } 9727 9728 void removeAdjacentSuggestionSpans(final int pos) { 9729 if (!(mText instanceof Editable)) return; 9730 final Editable text = (Editable) mText; 9731 9732 final SuggestionSpan[] spans = text.getSpans(pos, pos, SuggestionSpan.class); 9733 final int length = spans.length; 9734 for (int i = 0; i < length; i++) { 9735 final int spanStart = text.getSpanStart(spans[i]); 9736 final int spanEnd = text.getSpanEnd(spans[i]); 9737 if (spanEnd == pos || spanStart == pos) { 9738 if (SpellChecker.haveWordBoundariesChanged(text, pos, pos, spanStart, spanEnd)) { 9739 text.removeSpan(spans[i]); 9740 } 9741 } 9742 } 9743 } 9744 9745 /** 9746 * Not private so it can be called from an inner class without going 9747 * through a thunk. 9748 */ 9749 void sendOnTextChanged(CharSequence text, int start, int before, int after) { 9750 if (mListeners != null) { 9751 final ArrayList<TextWatcher> list = mListeners; 9752 final int count = list.size(); 9753 for (int i = 0; i < count; i++) { 9754 list.get(i).onTextChanged(text, start, before, after); 9755 } 9756 } 9757 9758 if (mEditor != null) mEditor.sendOnTextChanged(start, before, after); 9759 } 9760 9761 /** 9762 * Not private so it can be called from an inner class without going 9763 * through a thunk. 9764 */ 9765 void sendAfterTextChanged(Editable text) { 9766 if (mListeners != null) { 9767 final ArrayList<TextWatcher> list = mListeners; 9768 final int count = list.size(); 9769 for (int i = 0; i < count; i++) { 9770 list.get(i).afterTextChanged(text); 9771 } 9772 } 9773 9774 // Always notify AutoFillManager - it will return right away if autofill is disabled. 9775 notifyAutoFillManagerAfterTextChangedIfNeeded(); 9776 9777 hideErrorIfUnchanged(); 9778 } 9779 9780 private void notifyAutoFillManagerAfterTextChangedIfNeeded() { 9781 // It is important to not check whether the view is important for autofill 9782 // since the user can trigger autofill manually on not important views. 9783 if (!isAutofillable()) { 9784 return; 9785 } 9786 final AutofillManager afm = mContext.getSystemService(AutofillManager.class); 9787 if (afm == null) { 9788 return; 9789 } 9790 9791 if (mLastValueSentToAutofillManager == null 9792 || !mLastValueSentToAutofillManager.equals(mText)) { 9793 if (android.view.autofill.Helper.sVerbose) { 9794 Log.v(LOG_TAG, "notifying AFM after text changed"); 9795 } 9796 afm.notifyValueChanged(TextView.this); 9797 mLastValueSentToAutofillManager = mText; 9798 } else { 9799 if (android.view.autofill.Helper.sVerbose) { 9800 Log.v(LOG_TAG, "not notifying AFM on unchanged text"); 9801 } 9802 } 9803 } 9804 9805 private boolean isAutofillable() { 9806 // It is important to not check whether the view is important for autofill 9807 // since the user can trigger autofill manually on not important views. 9808 return getAutofillType() != AUTOFILL_TYPE_NONE; 9809 } 9810 9811 void updateAfterEdit() { 9812 invalidate(); 9813 int curs = getSelectionStart(); 9814 9815 if (curs >= 0 || (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) { 9816 registerForPreDraw(); 9817 } 9818 9819 checkForResize(); 9820 9821 if (curs >= 0) { 9822 mHighlightPathBogus = true; 9823 if (mEditor != null) mEditor.makeBlink(); 9824 bringPointIntoView(curs); 9825 } 9826 } 9827 9828 /** 9829 * Not private so it can be called from an inner class without going 9830 * through a thunk. 9831 */ 9832 void handleTextChanged(CharSequence buffer, int start, int before, int after) { 9833 sLastCutCopyOrTextChangedTime = 0; 9834 9835 final Editor.InputMethodState ims = mEditor == null ? null : mEditor.mInputMethodState; 9836 if (ims == null || ims.mBatchEditNesting == 0) { 9837 updateAfterEdit(); 9838 } 9839 if (ims != null) { 9840 ims.mContentChanged = true; 9841 if (ims.mChangedStart < 0) { 9842 ims.mChangedStart = start; 9843 ims.mChangedEnd = start + before; 9844 } else { 9845 ims.mChangedStart = Math.min(ims.mChangedStart, start); 9846 ims.mChangedEnd = Math.max(ims.mChangedEnd, start + before - ims.mChangedDelta); 9847 } 9848 ims.mChangedDelta += after - before; 9849 } 9850 resetErrorChangedFlag(); 9851 sendOnTextChanged(buffer, start, before, after); 9852 onTextChanged(buffer, start, before, after); 9853 } 9854 9855 /** 9856 * Not private so it can be called from an inner class without going 9857 * through a thunk. 9858 */ 9859 void spanChange(Spanned buf, Object what, int oldStart, int newStart, int oldEnd, int newEnd) { 9860 // XXX Make the start and end move together if this ends up 9861 // spending too much time invalidating. 9862 9863 boolean selChanged = false; 9864 int newSelStart = -1, newSelEnd = -1; 9865 9866 final Editor.InputMethodState ims = mEditor == null ? null : mEditor.mInputMethodState; 9867 9868 if (what == Selection.SELECTION_END) { 9869 selChanged = true; 9870 newSelEnd = newStart; 9871 9872 if (oldStart >= 0 || newStart >= 0) { 9873 invalidateCursor(Selection.getSelectionStart(buf), oldStart, newStart); 9874 checkForResize(); 9875 registerForPreDraw(); 9876 if (mEditor != null) mEditor.makeBlink(); 9877 } 9878 } 9879 9880 if (what == Selection.SELECTION_START) { 9881 selChanged = true; 9882 newSelStart = newStart; 9883 9884 if (oldStart >= 0 || newStart >= 0) { 9885 int end = Selection.getSelectionEnd(buf); 9886 invalidateCursor(end, oldStart, newStart); 9887 } 9888 } 9889 9890 if (selChanged) { 9891 mHighlightPathBogus = true; 9892 if (mEditor != null && !isFocused()) mEditor.mSelectionMoved = true; 9893 9894 if ((buf.getSpanFlags(what) & Spanned.SPAN_INTERMEDIATE) == 0) { 9895 if (newSelStart < 0) { 9896 newSelStart = Selection.getSelectionStart(buf); 9897 } 9898 if (newSelEnd < 0) { 9899 newSelEnd = Selection.getSelectionEnd(buf); 9900 } 9901 9902 if (mEditor != null) { 9903 mEditor.refreshTextActionMode(); 9904 if (!hasSelection() 9905 && mEditor.getTextActionMode() == null && hasTransientState()) { 9906 // User generated selection has been removed. 9907 setHasTransientState(false); 9908 } 9909 } 9910 onSelectionChanged(newSelStart, newSelEnd); 9911 } 9912 } 9913 9914 if (what instanceof UpdateAppearance || what instanceof ParagraphStyle 9915 || what instanceof CharacterStyle) { 9916 if (ims == null || ims.mBatchEditNesting == 0) { 9917 invalidate(); 9918 mHighlightPathBogus = true; 9919 checkForResize(); 9920 } else { 9921 ims.mContentChanged = true; 9922 } 9923 if (mEditor != null) { 9924 if (oldStart >= 0) mEditor.invalidateTextDisplayList(mLayout, oldStart, oldEnd); 9925 if (newStart >= 0) mEditor.invalidateTextDisplayList(mLayout, newStart, newEnd); 9926 mEditor.invalidateHandlesAndActionMode(); 9927 } 9928 } 9929 9930 if (MetaKeyKeyListener.isMetaTracker(buf, what)) { 9931 mHighlightPathBogus = true; 9932 if (ims != null && MetaKeyKeyListener.isSelectingMetaTracker(buf, what)) { 9933 ims.mSelectionModeChanged = true; 9934 } 9935 9936 if (Selection.getSelectionStart(buf) >= 0) { 9937 if (ims == null || ims.mBatchEditNesting == 0) { 9938 invalidateCursor(); 9939 } else { 9940 ims.mCursorChanged = true; 9941 } 9942 } 9943 } 9944 9945 if (what instanceof ParcelableSpan) { 9946 // If this is a span that can be sent to a remote process, 9947 // the current extract editor would be interested in it. 9948 if (ims != null && ims.mExtractedTextRequest != null) { 9949 if (ims.mBatchEditNesting != 0) { 9950 if (oldStart >= 0) { 9951 if (ims.mChangedStart > oldStart) { 9952 ims.mChangedStart = oldStart; 9953 } 9954 if (ims.mChangedStart > oldEnd) { 9955 ims.mChangedStart = oldEnd; 9956 } 9957 } 9958 if (newStart >= 0) { 9959 if (ims.mChangedStart > newStart) { 9960 ims.mChangedStart = newStart; 9961 } 9962 if (ims.mChangedStart > newEnd) { 9963 ims.mChangedStart = newEnd; 9964 } 9965 } 9966 } else { 9967 if (DEBUG_EXTRACT) { 9968 Log.v(LOG_TAG, "Span change outside of batch: " 9969 + oldStart + "-" + oldEnd + "," 9970 + newStart + "-" + newEnd + " " + what); 9971 } 9972 ims.mContentChanged = true; 9973 } 9974 } 9975 } 9976 9977 if (mEditor != null && mEditor.mSpellChecker != null && newStart < 0 9978 && what instanceof SpellCheckSpan) { 9979 mEditor.mSpellChecker.onSpellCheckSpanRemoved((SpellCheckSpan) what); 9980 } 9981 } 9982 9983 @Override 9984 protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) { 9985 if (isTemporarilyDetached()) { 9986 // If we are temporarily in the detach state, then do nothing. 9987 super.onFocusChanged(focused, direction, previouslyFocusedRect); 9988 return; 9989 } 9990 9991 if (mEditor != null) mEditor.onFocusChanged(focused, direction); 9992 9993 if (focused) { 9994 if (mSpannable != null) { 9995 MetaKeyKeyListener.resetMetaState(mSpannable); 9996 } 9997 } 9998 9999 startStopMarquee(focused); 10000 10001 if (mTransformation != null) { 10002 mTransformation.onFocusChanged(this, mText, focused, direction, previouslyFocusedRect); 10003 } 10004 10005 super.onFocusChanged(focused, direction, previouslyFocusedRect); 10006 } 10007 10008 @Override 10009 public void onWindowFocusChanged(boolean hasWindowFocus) { 10010 super.onWindowFocusChanged(hasWindowFocus); 10011 10012 if (mEditor != null) mEditor.onWindowFocusChanged(hasWindowFocus); 10013 10014 startStopMarquee(hasWindowFocus); 10015 } 10016 10017 @Override 10018 protected void onVisibilityChanged(View changedView, int visibility) { 10019 super.onVisibilityChanged(changedView, visibility); 10020 if (mEditor != null && visibility != VISIBLE) { 10021 mEditor.hideCursorAndSpanControllers(); 10022 stopTextActionMode(); 10023 } 10024 } 10025 10026 /** 10027 * Use {@link BaseInputConnection#removeComposingSpans 10028 * BaseInputConnection.removeComposingSpans()} to remove any IME composing 10029 * state from this text view. 10030 */ 10031 public void clearComposingText() { 10032 if (mText instanceof Spannable) { 10033 BaseInputConnection.removeComposingSpans(mSpannable); 10034 } 10035 } 10036 10037 @Override 10038 public void setSelected(boolean selected) { 10039 boolean wasSelected = isSelected(); 10040 10041 super.setSelected(selected); 10042 10043 if (selected != wasSelected && mEllipsize == TextUtils.TruncateAt.MARQUEE) { 10044 if (selected) { 10045 startMarquee(); 10046 } else { 10047 stopMarquee(); 10048 } 10049 } 10050 } 10051 10052 @Override 10053 public boolean onTouchEvent(MotionEvent event) { 10054 final int action = event.getActionMasked(); 10055 if (mEditor != null) { 10056 mEditor.onTouchEvent(event); 10057 10058 if (mEditor.mSelectionModifierCursorController != null 10059 && mEditor.mSelectionModifierCursorController.isDragAcceleratorActive()) { 10060 return true; 10061 } 10062 } 10063 10064 final boolean superResult = super.onTouchEvent(event); 10065 10066 /* 10067 * Don't handle the release after a long press, because it will move the selection away from 10068 * whatever the menu action was trying to affect. If the long press should have triggered an 10069 * insertion action mode, we can now actually show it. 10070 */ 10071 if (mEditor != null && mEditor.mDiscardNextActionUp && action == MotionEvent.ACTION_UP) { 10072 mEditor.mDiscardNextActionUp = false; 10073 10074 if (mEditor.mIsInsertionActionModeStartPending) { 10075 mEditor.startInsertionActionMode(); 10076 mEditor.mIsInsertionActionModeStartPending = false; 10077 } 10078 return superResult; 10079 } 10080 10081 final boolean touchIsFinished = (action == MotionEvent.ACTION_UP) 10082 && (mEditor == null || !mEditor.mIgnoreActionUpEvent) && isFocused(); 10083 10084 if ((mMovement != null || onCheckIsTextEditor()) && isEnabled() 10085 && mText instanceof Spannable && mLayout != null) { 10086 boolean handled = false; 10087 10088 if (mMovement != null) { 10089 handled |= mMovement.onTouchEvent(this, mSpannable, event); 10090 } 10091 10092 final boolean textIsSelectable = isTextSelectable(); 10093 if (touchIsFinished && mLinksClickable && mAutoLinkMask != 0 && textIsSelectable) { 10094 // The LinkMovementMethod which should handle taps on links has not been installed 10095 // on non editable text that support text selection. 10096 // We reproduce its behavior here to open links for these. 10097 ClickableSpan[] links = mSpannable.getSpans(getSelectionStart(), 10098 getSelectionEnd(), ClickableSpan.class); 10099 10100 if (links.length > 0) { 10101 links[0].onClick(this); 10102 handled = true; 10103 } 10104 } 10105 10106 if (touchIsFinished && (isTextEditable() || textIsSelectable)) { 10107 // Show the IME, except when selecting in read-only text. 10108 final InputMethodManager imm = InputMethodManager.peekInstance(); 10109 viewClicked(imm); 10110 if (isTextEditable() && mEditor.mShowSoftInputOnFocus && imm != null) { 10111 imm.showSoftInput(this, 0); 10112 } 10113 10114 // The above condition ensures that the mEditor is not null 10115 mEditor.onTouchUpEvent(event); 10116 10117 handled = true; 10118 } 10119 10120 if (handled) { 10121 return true; 10122 } 10123 } 10124 10125 return superResult; 10126 } 10127 10128 @Override 10129 public boolean onGenericMotionEvent(MotionEvent event) { 10130 if (mMovement != null && mText instanceof Spannable && mLayout != null) { 10131 try { 10132 if (mMovement.onGenericMotionEvent(this, mSpannable, event)) { 10133 return true; 10134 } 10135 } catch (AbstractMethodError ex) { 10136 // onGenericMotionEvent was added to the MovementMethod interface in API 12. 10137 // Ignore its absence in case third party applications implemented the 10138 // interface directly. 10139 } 10140 } 10141 return super.onGenericMotionEvent(event); 10142 } 10143 10144 @Override 10145 protected void onCreateContextMenu(ContextMenu menu) { 10146 if (mEditor != null) { 10147 mEditor.onCreateContextMenu(menu); 10148 } 10149 } 10150 10151 @Override 10152 public boolean showContextMenu() { 10153 if (mEditor != null) { 10154 mEditor.setContextMenuAnchor(Float.NaN, Float.NaN); 10155 } 10156 return super.showContextMenu(); 10157 } 10158 10159 @Override 10160 public boolean showContextMenu(float x, float y) { 10161 if (mEditor != null) { 10162 mEditor.setContextMenuAnchor(x, y); 10163 } 10164 return super.showContextMenu(x, y); 10165 } 10166 10167 /** 10168 * @return True iff this TextView contains a text that can be edited, or if this is 10169 * a selectable TextView. 10170 */ 10171 boolean isTextEditable() { 10172 return mText instanceof Editable && onCheckIsTextEditor() && isEnabled(); 10173 } 10174 10175 /** 10176 * Returns true, only while processing a touch gesture, if the initial 10177 * touch down event caused focus to move to the text view and as a result 10178 * its selection changed. Only valid while processing the touch gesture 10179 * of interest, in an editable text view. 10180 */ 10181 public boolean didTouchFocusSelect() { 10182 return mEditor != null && mEditor.mTouchFocusSelected; 10183 } 10184 10185 @Override 10186 public void cancelLongPress() { 10187 super.cancelLongPress(); 10188 if (mEditor != null) mEditor.mIgnoreActionUpEvent = true; 10189 } 10190 10191 @Override 10192 public boolean onTrackballEvent(MotionEvent event) { 10193 if (mMovement != null && mSpannable != null && mLayout != null) { 10194 if (mMovement.onTrackballEvent(this, mSpannable, event)) { 10195 return true; 10196 } 10197 } 10198 10199 return super.onTrackballEvent(event); 10200 } 10201 10202 /** 10203 * Sets the Scroller used for producing a scrolling animation 10204 * 10205 * @param s A Scroller instance 10206 */ 10207 public void setScroller(Scroller s) { 10208 mScroller = s; 10209 } 10210 10211 @Override 10212 protected float getLeftFadingEdgeStrength() { 10213 if (isMarqueeFadeEnabled() && mMarquee != null && !mMarquee.isStopped()) { 10214 final Marquee marquee = mMarquee; 10215 if (marquee.shouldDrawLeftFade()) { 10216 return getHorizontalFadingEdgeStrength(marquee.getScroll(), 0.0f); 10217 } else { 10218 return 0.0f; 10219 } 10220 } else if (getLineCount() == 1) { 10221 final float lineLeft = getLayout().getLineLeft(0); 10222 if (lineLeft > mScrollX) return 0.0f; 10223 return getHorizontalFadingEdgeStrength(mScrollX, lineLeft); 10224 } 10225 return super.getLeftFadingEdgeStrength(); 10226 } 10227 10228 @Override 10229 protected float getRightFadingEdgeStrength() { 10230 if (isMarqueeFadeEnabled() && mMarquee != null && !mMarquee.isStopped()) { 10231 final Marquee marquee = mMarquee; 10232 return getHorizontalFadingEdgeStrength(marquee.getMaxFadeScroll(), marquee.getScroll()); 10233 } else if (getLineCount() == 1) { 10234 final float rightEdge = mScrollX + 10235 (getWidth() - getCompoundPaddingLeft() - getCompoundPaddingRight()); 10236 final float lineRight = getLayout().getLineRight(0); 10237 if (lineRight < rightEdge) return 0.0f; 10238 return getHorizontalFadingEdgeStrength(rightEdge, lineRight); 10239 } 10240 return super.getRightFadingEdgeStrength(); 10241 } 10242 10243 /** 10244 * Calculates the fading edge strength as the ratio of the distance between two 10245 * horizontal positions to {@link View#getHorizontalFadingEdgeLength()}. Uses the absolute 10246 * value for the distance calculation. 10247 * 10248 * @param position1 A horizontal position. 10249 * @param position2 A horizontal position. 10250 * @return Fading edge strength between [0.0f, 1.0f]. 10251 */ 10252 @FloatRange(from = 0.0, to = 1.0) 10253 private float getHorizontalFadingEdgeStrength(float position1, float position2) { 10254 final int horizontalFadingEdgeLength = getHorizontalFadingEdgeLength(); 10255 if (horizontalFadingEdgeLength == 0) return 0.0f; 10256 final float diff = Math.abs(position1 - position2); 10257 if (diff > horizontalFadingEdgeLength) return 1.0f; 10258 return diff / horizontalFadingEdgeLength; 10259 } 10260 10261 private boolean isMarqueeFadeEnabled() { 10262 return mEllipsize == TextUtils.TruncateAt.MARQUEE 10263 && mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS; 10264 } 10265 10266 @Override 10267 protected int computeHorizontalScrollRange() { 10268 if (mLayout != null) { 10269 return mSingleLine && (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.LEFT 10270 ? (int) mLayout.getLineWidth(0) : mLayout.getWidth(); 10271 } 10272 10273 return super.computeHorizontalScrollRange(); 10274 } 10275 10276 @Override 10277 protected int computeVerticalScrollRange() { 10278 if (mLayout != null) { 10279 return mLayout.getHeight(); 10280 } 10281 return super.computeVerticalScrollRange(); 10282 } 10283 10284 @Override 10285 protected int computeVerticalScrollExtent() { 10286 return getHeight() - getCompoundPaddingTop() - getCompoundPaddingBottom(); 10287 } 10288 10289 @Override 10290 public void findViewsWithText(ArrayList<View> outViews, CharSequence searched, int flags) { 10291 super.findViewsWithText(outViews, searched, flags); 10292 if (!outViews.contains(this) && (flags & FIND_VIEWS_WITH_TEXT) != 0 10293 && !TextUtils.isEmpty(searched) && !TextUtils.isEmpty(mText)) { 10294 String searchedLowerCase = searched.toString().toLowerCase(); 10295 String textLowerCase = mText.toString().toLowerCase(); 10296 if (textLowerCase.contains(searchedLowerCase)) { 10297 outViews.add(this); 10298 } 10299 } 10300 } 10301 10302 /** 10303 * Type of the text buffer that defines the characteristics of the text such as static, 10304 * styleable, or editable. 10305 */ 10306 public enum BufferType { 10307 NORMAL, SPANNABLE, EDITABLE 10308 } 10309 10310 /** 10311 * Returns the TextView_textColor attribute from the TypedArray, if set, or 10312 * the TextAppearance_textColor from the TextView_textAppearance attribute, 10313 * if TextView_textColor was not set directly. 10314 * 10315 * @removed 10316 */ 10317 public static ColorStateList getTextColors(Context context, TypedArray attrs) { 10318 if (attrs == null) { 10319 // Preserve behavior prior to removal of this API. 10320 throw new NullPointerException(); 10321 } 10322 10323 // It's not safe to use this method from apps. The parameter 'attrs' 10324 // must have been obtained using the TextView filter array which is not 10325 // available to the SDK. As such, we grab a default TypedArray with the 10326 // right filter instead here. 10327 final TypedArray a = context.obtainStyledAttributes(R.styleable.TextView); 10328 ColorStateList colors = a.getColorStateList(R.styleable.TextView_textColor); 10329 if (colors == null) { 10330 final int ap = a.getResourceId(R.styleable.TextView_textAppearance, 0); 10331 if (ap != 0) { 10332 final TypedArray appearance = context.obtainStyledAttributes( 10333 ap, R.styleable.TextAppearance); 10334 colors = appearance.getColorStateList(R.styleable.TextAppearance_textColor); 10335 appearance.recycle(); 10336 } 10337 } 10338 a.recycle(); 10339 10340 return colors; 10341 } 10342 10343 /** 10344 * Returns the default color from the TextView_textColor attribute from the 10345 * AttributeSet, if set, or the default color from the 10346 * TextAppearance_textColor from the TextView_textAppearance attribute, if 10347 * TextView_textColor was not set directly. 10348 * 10349 * @removed 10350 */ 10351 public static int getTextColor(Context context, TypedArray attrs, int def) { 10352 final ColorStateList colors = getTextColors(context, attrs); 10353 if (colors == null) { 10354 return def; 10355 } else { 10356 return colors.getDefaultColor(); 10357 } 10358 } 10359 10360 @Override 10361 public boolean onKeyShortcut(int keyCode, KeyEvent event) { 10362 if (event.hasModifiers(KeyEvent.META_CTRL_ON)) { 10363 // Handle Ctrl-only shortcuts. 10364 switch (keyCode) { 10365 case KeyEvent.KEYCODE_A: 10366 if (canSelectText()) { 10367 return onTextContextMenuItem(ID_SELECT_ALL); 10368 } 10369 break; 10370 case KeyEvent.KEYCODE_Z: 10371 if (canUndo()) { 10372 return onTextContextMenuItem(ID_UNDO); 10373 } 10374 break; 10375 case KeyEvent.KEYCODE_X: 10376 if (canCut()) { 10377 return onTextContextMenuItem(ID_CUT); 10378 } 10379 break; 10380 case KeyEvent.KEYCODE_C: 10381 if (canCopy()) { 10382 return onTextContextMenuItem(ID_COPY); 10383 } 10384 break; 10385 case KeyEvent.KEYCODE_V: 10386 if (canPaste()) { 10387 return onTextContextMenuItem(ID_PASTE); 10388 } 10389 break; 10390 } 10391 } else if (event.hasModifiers(KeyEvent.META_CTRL_ON | KeyEvent.META_SHIFT_ON)) { 10392 // Handle Ctrl-Shift shortcuts. 10393 switch (keyCode) { 10394 case KeyEvent.KEYCODE_Z: 10395 if (canRedo()) { 10396 return onTextContextMenuItem(ID_REDO); 10397 } 10398 break; 10399 case KeyEvent.KEYCODE_V: 10400 if (canPaste()) { 10401 return onTextContextMenuItem(ID_PASTE_AS_PLAIN_TEXT); 10402 } 10403 } 10404 } 10405 return super.onKeyShortcut(keyCode, event); 10406 } 10407 10408 /** 10409 * Unlike {@link #textCanBeSelected()}, this method is based on the <i>current</i> state of the 10410 * TextView. {@link #textCanBeSelected()} has to be true (this is one of the conditions to have 10411 * a selection controller (see {@link Editor#prepareCursorControllers()}), but this is not 10412 * sufficient. 10413 */ 10414 boolean canSelectText() { 10415 return mText.length() != 0 && mEditor != null && mEditor.hasSelectionController(); 10416 } 10417 10418 /** 10419 * Test based on the <i>intrinsic</i> charateristics of the TextView. 10420 * The text must be spannable and the movement method must allow for arbitary selection. 10421 * 10422 * See also {@link #canSelectText()}. 10423 */ 10424 boolean textCanBeSelected() { 10425 // prepareCursorController() relies on this method. 10426 // If you change this condition, make sure prepareCursorController is called anywhere 10427 // the value of this condition might be changed. 10428 if (mMovement == null || !mMovement.canSelectArbitrarily()) return false; 10429 return isTextEditable() 10430 || (isTextSelectable() && mText instanceof Spannable && isEnabled()); 10431 } 10432 10433 private Locale getTextServicesLocale(boolean allowNullLocale) { 10434 // Start fetching the text services locale asynchronously. 10435 updateTextServicesLocaleAsync(); 10436 // If !allowNullLocale and there is no cached text services locale, just return the default 10437 // locale. 10438 return (mCurrentSpellCheckerLocaleCache == null && !allowNullLocale) ? Locale.getDefault() 10439 : mCurrentSpellCheckerLocaleCache; 10440 } 10441 10442 /** 10443 * This is a temporary method. Future versions may support multi-locale text. 10444 * Caveat: This method may not return the latest text services locale, but this should be 10445 * acceptable and it's more important to make this method asynchronous. 10446 * 10447 * @return The locale that should be used for a word iterator 10448 * in this TextView, based on the current spell checker settings, 10449 * the current IME's locale, or the system default locale. 10450 * Please note that a word iterator in this TextView is different from another word iterator 10451 * used by SpellChecker.java of TextView. This method should be used for the former. 10452 * @hide 10453 */ 10454 // TODO: Support multi-locale 10455 // TODO: Update the text services locale immediately after the keyboard locale is switched 10456 // by catching intent of keyboard switch event 10457 public Locale getTextServicesLocale() { 10458 return getTextServicesLocale(false /* allowNullLocale */); 10459 } 10460 10461 /** 10462 * @return {@code true} if this TextView is specialized for showing and interacting with the 10463 * extracted text in a full-screen input method. 10464 * @hide 10465 */ 10466 public boolean isInExtractedMode() { 10467 return false; 10468 } 10469 10470 /** 10471 * @return {@code true} if this widget supports auto-sizing text and has been configured to 10472 * auto-size. 10473 */ 10474 private boolean isAutoSizeEnabled() { 10475 return supportsAutoSizeText() && mAutoSizeTextType != AUTO_SIZE_TEXT_TYPE_NONE; 10476 } 10477 10478 /** 10479 * @return {@code true} if this TextView supports auto-sizing text to fit within its container. 10480 * @hide 10481 */ 10482 protected boolean supportsAutoSizeText() { 10483 return true; 10484 } 10485 10486 /** 10487 * This is a temporary method. Future versions may support multi-locale text. 10488 * Caveat: This method may not return the latest spell checker locale, but this should be 10489 * acceptable and it's more important to make this method asynchronous. 10490 * 10491 * @return The locale that should be used for a spell checker in this TextView, 10492 * based on the current spell checker settings, the current IME's locale, or the system default 10493 * locale. 10494 * @hide 10495 */ 10496 public Locale getSpellCheckerLocale() { 10497 return getTextServicesLocale(true /* allowNullLocale */); 10498 } 10499 10500 private void updateTextServicesLocaleAsync() { 10501 // AsyncTask.execute() uses a serial executor which means we don't have 10502 // to lock around updateTextServicesLocaleLocked() to prevent it from 10503 // being executed n times in parallel. 10504 AsyncTask.execute(new Runnable() { 10505 @Override 10506 public void run() { 10507 updateTextServicesLocaleLocked(); 10508 } 10509 }); 10510 } 10511 10512 private void updateTextServicesLocaleLocked() { 10513 final TextServicesManager textServicesManager = (TextServicesManager) 10514 mContext.getSystemService(Context.TEXT_SERVICES_MANAGER_SERVICE); 10515 final SpellCheckerSubtype subtype = textServicesManager.getCurrentSpellCheckerSubtype(true); 10516 final Locale locale; 10517 if (subtype != null) { 10518 locale = subtype.getLocaleObject(); 10519 } else { 10520 locale = null; 10521 } 10522 mCurrentSpellCheckerLocaleCache = locale; 10523 } 10524 10525 void onLocaleChanged() { 10526 mEditor.onLocaleChanged(); 10527 } 10528 10529 /** 10530 * This method is used by the ArrowKeyMovementMethod to jump from one word to the other. 10531 * Made available to achieve a consistent behavior. 10532 * @hide 10533 */ 10534 public WordIterator getWordIterator() { 10535 if (mEditor != null) { 10536 return mEditor.getWordIterator(); 10537 } else { 10538 return null; 10539 } 10540 } 10541 10542 /** @hide */ 10543 @Override 10544 public void onPopulateAccessibilityEventInternal(AccessibilityEvent event) { 10545 super.onPopulateAccessibilityEventInternal(event); 10546 10547 final CharSequence text = getTextForAccessibility(); 10548 if (!TextUtils.isEmpty(text)) { 10549 event.getText().add(text); 10550 } 10551 } 10552 10553 @Override 10554 public CharSequence getAccessibilityClassName() { 10555 return TextView.class.getName(); 10556 } 10557 10558 @Override 10559 public void onProvideStructure(ViewStructure structure) { 10560 super.onProvideStructure(structure); 10561 onProvideAutoStructureForAssistOrAutofill(structure, false); 10562 } 10563 10564 @Override 10565 public void onProvideAutofillStructure(ViewStructure structure, int flags) { 10566 super.onProvideAutofillStructure(structure, flags); 10567 onProvideAutoStructureForAssistOrAutofill(structure, true); 10568 } 10569 10570 private void onProvideAutoStructureForAssistOrAutofill(ViewStructure structure, 10571 boolean forAutofill) { 10572 final boolean isPassword = hasPasswordTransformationMethod() 10573 || isPasswordInputType(getInputType()); 10574 if (forAutofill) { 10575 structure.setDataIsSensitive(!mTextSetFromXmlOrResourceId); 10576 if (mTextId != ResourceId.ID_NULL) { 10577 try { 10578 structure.setTextIdEntry(getResources().getResourceEntryName(mTextId)); 10579 } catch (Resources.NotFoundException e) { 10580 if (android.view.autofill.Helper.sVerbose) { 10581 Log.v(LOG_TAG, "onProvideAutofillStructure(): cannot set name for text id " 10582 + mTextId + ": " + e.getMessage()); 10583 } 10584 } 10585 } 10586 } 10587 10588 if (!isPassword || forAutofill) { 10589 if (mLayout == null) { 10590 assumeLayout(); 10591 } 10592 Layout layout = mLayout; 10593 final int lineCount = layout.getLineCount(); 10594 if (lineCount <= 1) { 10595 // Simple case: this is a single line. 10596 final CharSequence text = getText(); 10597 if (forAutofill) { 10598 structure.setText(text); 10599 } else { 10600 structure.setText(text, getSelectionStart(), getSelectionEnd()); 10601 } 10602 } else { 10603 // Complex case: multi-line, could be scrolled or within a scroll container 10604 // so some lines are not visible. 10605 final int[] tmpCords = new int[2]; 10606 getLocationInWindow(tmpCords); 10607 final int topWindowLocation = tmpCords[1]; 10608 View root = this; 10609 ViewParent viewParent = getParent(); 10610 while (viewParent instanceof View) { 10611 root = (View) viewParent; 10612 viewParent = root.getParent(); 10613 } 10614 final int windowHeight = root.getHeight(); 10615 final int topLine; 10616 final int bottomLine; 10617 if (topWindowLocation >= 0) { 10618 // The top of the view is fully within its window; start text at line 0. 10619 topLine = getLineAtCoordinateUnclamped(0); 10620 bottomLine = getLineAtCoordinateUnclamped(windowHeight - 1); 10621 } else { 10622 // The top of hte window has scrolled off the top of the window; figure out 10623 // the starting line for this. 10624 topLine = getLineAtCoordinateUnclamped(-topWindowLocation); 10625 bottomLine = getLineAtCoordinateUnclamped(windowHeight - 1 - topWindowLocation); 10626 } 10627 // We want to return some contextual lines above/below the lines that are 10628 // actually visible. 10629 int expandedTopLine = topLine - (bottomLine - topLine) / 2; 10630 if (expandedTopLine < 0) { 10631 expandedTopLine = 0; 10632 } 10633 int expandedBottomLine = bottomLine + (bottomLine - topLine) / 2; 10634 if (expandedBottomLine >= lineCount) { 10635 expandedBottomLine = lineCount - 1; 10636 } 10637 10638 // Convert lines into character offsets. 10639 int expandedTopChar = layout.getLineStart(expandedTopLine); 10640 int expandedBottomChar = layout.getLineEnd(expandedBottomLine); 10641 10642 // Take into account selection -- if there is a selection, we need to expand 10643 // the text we are returning to include that selection. 10644 final int selStart = getSelectionStart(); 10645 final int selEnd = getSelectionEnd(); 10646 if (selStart < selEnd) { 10647 if (selStart < expandedTopChar) { 10648 expandedTopChar = selStart; 10649 } 10650 if (selEnd > expandedBottomChar) { 10651 expandedBottomChar = selEnd; 10652 } 10653 } 10654 10655 // Get the text and trim it to the range we are reporting. 10656 CharSequence text = getText(); 10657 if (expandedTopChar > 0 || expandedBottomChar < text.length()) { 10658 text = text.subSequence(expandedTopChar, expandedBottomChar); 10659 } 10660 10661 if (forAutofill) { 10662 structure.setText(text); 10663 } else { 10664 structure.setText(text, selStart - expandedTopChar, selEnd - expandedTopChar); 10665 10666 final int[] lineOffsets = new int[bottomLine - topLine + 1]; 10667 final int[] lineBaselines = new int[bottomLine - topLine + 1]; 10668 final int baselineOffset = getBaselineOffset(); 10669 for (int i = topLine; i <= bottomLine; i++) { 10670 lineOffsets[i - topLine] = layout.getLineStart(i); 10671 lineBaselines[i - topLine] = layout.getLineBaseline(i) + baselineOffset; 10672 } 10673 structure.setTextLines(lineOffsets, lineBaselines); 10674 } 10675 } 10676 10677 if (!forAutofill) { 10678 // Extract style information that applies to the TextView as a whole. 10679 int style = 0; 10680 int typefaceStyle = getTypefaceStyle(); 10681 if ((typefaceStyle & Typeface.BOLD) != 0) { 10682 style |= AssistStructure.ViewNode.TEXT_STYLE_BOLD; 10683 } 10684 if ((typefaceStyle & Typeface.ITALIC) != 0) { 10685 style |= AssistStructure.ViewNode.TEXT_STYLE_ITALIC; 10686 } 10687 10688 // Global styles can also be set via TextView.setPaintFlags(). 10689 int paintFlags = mTextPaint.getFlags(); 10690 if ((paintFlags & Paint.FAKE_BOLD_TEXT_FLAG) != 0) { 10691 style |= AssistStructure.ViewNode.TEXT_STYLE_BOLD; 10692 } 10693 if ((paintFlags & Paint.UNDERLINE_TEXT_FLAG) != 0) { 10694 style |= AssistStructure.ViewNode.TEXT_STYLE_UNDERLINE; 10695 } 10696 if ((paintFlags & Paint.STRIKE_THRU_TEXT_FLAG) != 0) { 10697 style |= AssistStructure.ViewNode.TEXT_STYLE_STRIKE_THRU; 10698 } 10699 10700 // TextView does not have its own text background color. A background is either part 10701 // of the View (and can be any drawable) or a BackgroundColorSpan inside the text. 10702 structure.setTextStyle(getTextSize(), getCurrentTextColor(), 10703 AssistStructure.ViewNode.TEXT_COLOR_UNDEFINED /* bgColor */, style); 10704 } else { 10705 structure.setMinTextEms(getMinEms()); 10706 structure.setMaxTextEms(getMaxEms()); 10707 int maxLength = -1; 10708 for (InputFilter filter: getFilters()) { 10709 if (filter instanceof InputFilter.LengthFilter) { 10710 maxLength = ((InputFilter.LengthFilter) filter).getMax(); 10711 break; 10712 } 10713 } 10714 structure.setMaxTextLength(maxLength); 10715 } 10716 } 10717 structure.setHint(getHint()); 10718 structure.setInputType(getInputType()); 10719 } 10720 10721 boolean canRequestAutofill() { 10722 if (!isAutofillable()) { 10723 return false; 10724 } 10725 final AutofillManager afm = mContext.getSystemService(AutofillManager.class); 10726 if (afm != null) { 10727 return afm.isEnabled(); 10728 } 10729 return false; 10730 } 10731 10732 private void requestAutofill() { 10733 final AutofillManager afm = mContext.getSystemService(AutofillManager.class); 10734 if (afm != null) { 10735 afm.requestAutofill(this); 10736 } 10737 } 10738 10739 @Override 10740 public void autofill(AutofillValue value) { 10741 if (!value.isText() || !isTextEditable()) { 10742 Log.w(LOG_TAG, value + " could not be autofilled into " + this); 10743 return; 10744 } 10745 10746 final CharSequence autofilledValue = value.getTextValue(); 10747 10748 // First autofill it... 10749 setText(autofilledValue, mBufferType, true, 0); 10750 10751 // ...then move cursor to the end. 10752 final CharSequence text = getText(); 10753 if ((text instanceof Spannable)) { 10754 Selection.setSelection((Spannable) text, text.length()); 10755 } 10756 } 10757 10758 @Override 10759 public @AutofillType int getAutofillType() { 10760 return isTextEditable() ? AUTOFILL_TYPE_TEXT : AUTOFILL_TYPE_NONE; 10761 } 10762 10763 /** 10764 * Gets the {@link TextView}'s current text for AutoFill. The value is trimmed to 100K 10765 * {@code char}s if longer. 10766 * 10767 * @return current text, {@code null} if the text is not editable 10768 * 10769 * @see View#getAutofillValue() 10770 */ 10771 @Override 10772 @Nullable 10773 public AutofillValue getAutofillValue() { 10774 if (isTextEditable()) { 10775 final CharSequence text = TextUtils.trimToParcelableSize(getText()); 10776 return AutofillValue.forText(text); 10777 } 10778 return null; 10779 } 10780 10781 /** @hide */ 10782 @Override 10783 public void onInitializeAccessibilityEventInternal(AccessibilityEvent event) { 10784 super.onInitializeAccessibilityEventInternal(event); 10785 10786 final boolean isPassword = hasPasswordTransformationMethod(); 10787 event.setPassword(isPassword); 10788 10789 if (event.getEventType() == AccessibilityEvent.TYPE_VIEW_TEXT_SELECTION_CHANGED) { 10790 event.setFromIndex(Selection.getSelectionStart(mText)); 10791 event.setToIndex(Selection.getSelectionEnd(mText)); 10792 event.setItemCount(mText.length()); 10793 } 10794 } 10795 10796 /** @hide */ 10797 @Override 10798 public void onInitializeAccessibilityNodeInfoInternal(AccessibilityNodeInfo info) { 10799 super.onInitializeAccessibilityNodeInfoInternal(info); 10800 10801 final boolean isPassword = hasPasswordTransformationMethod(); 10802 info.setPassword(isPassword); 10803 info.setText(getTextForAccessibility()); 10804 info.setHintText(mHint); 10805 info.setShowingHintText(isShowingHint()); 10806 10807 if (mBufferType == BufferType.EDITABLE) { 10808 info.setEditable(true); 10809 if (isEnabled()) { 10810 info.addAction(AccessibilityNodeInfo.AccessibilityAction.ACTION_SET_TEXT); 10811 } 10812 } 10813 10814 if (mEditor != null) { 10815 info.setInputType(mEditor.mInputType); 10816 10817 if (mEditor.mError != null) { 10818 info.setContentInvalid(true); 10819 info.setError(mEditor.mError); 10820 } 10821 } 10822 10823 if (!TextUtils.isEmpty(mText)) { 10824 info.addAction(AccessibilityNodeInfo.ACTION_NEXT_AT_MOVEMENT_GRANULARITY); 10825 info.addAction(AccessibilityNodeInfo.ACTION_PREVIOUS_AT_MOVEMENT_GRANULARITY); 10826 info.setMovementGranularities(AccessibilityNodeInfo.MOVEMENT_GRANULARITY_CHARACTER 10827 | AccessibilityNodeInfo.MOVEMENT_GRANULARITY_WORD 10828 | AccessibilityNodeInfo.MOVEMENT_GRANULARITY_LINE 10829 | AccessibilityNodeInfo.MOVEMENT_GRANULARITY_PARAGRAPH 10830 | AccessibilityNodeInfo.MOVEMENT_GRANULARITY_PAGE); 10831 info.addAction(AccessibilityNodeInfo.ACTION_SET_SELECTION); 10832 info.setAvailableExtraData( 10833 Arrays.asList(EXTRA_DATA_TEXT_CHARACTER_LOCATION_KEY)); 10834 } 10835 10836 if (isFocused()) { 10837 if (canCopy()) { 10838 info.addAction(AccessibilityNodeInfo.ACTION_COPY); 10839 } 10840 if (canPaste()) { 10841 info.addAction(AccessibilityNodeInfo.ACTION_PASTE); 10842 } 10843 if (canCut()) { 10844 info.addAction(AccessibilityNodeInfo.ACTION_CUT); 10845 } 10846 if (canShare()) { 10847 info.addAction(new AccessibilityNodeInfo.AccessibilityAction( 10848 ACCESSIBILITY_ACTION_SHARE, 10849 getResources().getString(com.android.internal.R.string.share))); 10850 } 10851 if (canProcessText()) { // also implies mEditor is not null. 10852 mEditor.mProcessTextIntentActionsHandler.onInitializeAccessibilityNodeInfo(info); 10853 } 10854 } 10855 10856 // Check for known input filter types. 10857 final int numFilters = mFilters.length; 10858 for (int i = 0; i < numFilters; i++) { 10859 final InputFilter filter = mFilters[i]; 10860 if (filter instanceof InputFilter.LengthFilter) { 10861 info.setMaxTextLength(((InputFilter.LengthFilter) filter).getMax()); 10862 } 10863 } 10864 10865 if (!isSingleLine()) { 10866 info.setMultiLine(true); 10867 } 10868 } 10869 10870 @Override 10871 public void addExtraDataToAccessibilityNodeInfo( 10872 AccessibilityNodeInfo info, String extraDataKey, Bundle arguments) { 10873 // The only extra data we support requires arguments. 10874 if (arguments == null) { 10875 return; 10876 } 10877 if (extraDataKey.equals(EXTRA_DATA_TEXT_CHARACTER_LOCATION_KEY)) { 10878 int positionInfoStartIndex = arguments.getInt( 10879 EXTRA_DATA_TEXT_CHARACTER_LOCATION_ARG_START_INDEX, -1); 10880 int positionInfoLength = arguments.getInt( 10881 EXTRA_DATA_TEXT_CHARACTER_LOCATION_ARG_LENGTH, -1); 10882 if ((positionInfoLength <= 0) || (positionInfoStartIndex < 0) 10883 || (positionInfoStartIndex >= mText.length())) { 10884 Log.e(LOG_TAG, "Invalid arguments for accessibility character locations"); 10885 return; 10886 } 10887 RectF[] boundingRects = new RectF[positionInfoLength]; 10888 final CursorAnchorInfo.Builder builder = new CursorAnchorInfo.Builder(); 10889 populateCharacterBounds(builder, positionInfoStartIndex, 10890 positionInfoStartIndex + positionInfoLength, 10891 viewportToContentHorizontalOffset(), viewportToContentVerticalOffset()); 10892 CursorAnchorInfo cursorAnchorInfo = builder.setMatrix(null).build(); 10893 for (int i = 0; i < positionInfoLength; i++) { 10894 int flags = cursorAnchorInfo.getCharacterBoundsFlags(positionInfoStartIndex + i); 10895 if ((flags & FLAG_HAS_VISIBLE_REGION) == FLAG_HAS_VISIBLE_REGION) { 10896 RectF bounds = cursorAnchorInfo 10897 .getCharacterBounds(positionInfoStartIndex + i); 10898 if (bounds != null) { 10899 mapRectFromViewToScreenCoords(bounds, true); 10900 boundingRects[i] = bounds; 10901 } 10902 } 10903 } 10904 info.getExtras().putParcelableArray(extraDataKey, boundingRects); 10905 } 10906 } 10907 10908 /** 10909 * Populate requested character bounds in a {@link CursorAnchorInfo.Builder} 10910 * 10911 * @param builder The builder to populate 10912 * @param startIndex The starting character index to populate 10913 * @param endIndex The ending character index to populate 10914 * @param viewportToContentHorizontalOffset The horizontal offset from the viewport to the 10915 * content 10916 * @param viewportToContentVerticalOffset The vertical offset from the viewport to the content 10917 * @hide 10918 */ 10919 public void populateCharacterBounds(CursorAnchorInfo.Builder builder, 10920 int startIndex, int endIndex, float viewportToContentHorizontalOffset, 10921 float viewportToContentVerticalOffset) { 10922 final int minLine = mLayout.getLineForOffset(startIndex); 10923 final int maxLine = mLayout.getLineForOffset(endIndex - 1); 10924 for (int line = minLine; line <= maxLine; ++line) { 10925 final int lineStart = mLayout.getLineStart(line); 10926 final int lineEnd = mLayout.getLineEnd(line); 10927 final int offsetStart = Math.max(lineStart, startIndex); 10928 final int offsetEnd = Math.min(lineEnd, endIndex); 10929 final boolean ltrLine = 10930 mLayout.getParagraphDirection(line) == Layout.DIR_LEFT_TO_RIGHT; 10931 final float[] widths = new float[offsetEnd - offsetStart]; 10932 mLayout.getPaint().getTextWidths(mTransformed, offsetStart, offsetEnd, widths); 10933 final float top = mLayout.getLineTop(line); 10934 final float bottom = mLayout.getLineBottom(line); 10935 for (int offset = offsetStart; offset < offsetEnd; ++offset) { 10936 final float charWidth = widths[offset - offsetStart]; 10937 final boolean isRtl = mLayout.isRtlCharAt(offset); 10938 final float primary = mLayout.getPrimaryHorizontal(offset); 10939 final float secondary = mLayout.getSecondaryHorizontal(offset); 10940 // TODO: This doesn't work perfectly for text with custom styles and 10941 // TAB chars. 10942 final float left; 10943 final float right; 10944 if (ltrLine) { 10945 if (isRtl) { 10946 left = secondary - charWidth; 10947 right = secondary; 10948 } else { 10949 left = primary; 10950 right = primary + charWidth; 10951 } 10952 } else { 10953 if (!isRtl) { 10954 left = secondary; 10955 right = secondary + charWidth; 10956 } else { 10957 left = primary - charWidth; 10958 right = primary; 10959 } 10960 } 10961 // TODO: Check top-right and bottom-left as well. 10962 final float localLeft = left + viewportToContentHorizontalOffset; 10963 final float localRight = right + viewportToContentHorizontalOffset; 10964 final float localTop = top + viewportToContentVerticalOffset; 10965 final float localBottom = bottom + viewportToContentVerticalOffset; 10966 final boolean isTopLeftVisible = isPositionVisible(localLeft, localTop); 10967 final boolean isBottomRightVisible = 10968 isPositionVisible(localRight, localBottom); 10969 int characterBoundsFlags = 0; 10970 if (isTopLeftVisible || isBottomRightVisible) { 10971 characterBoundsFlags |= FLAG_HAS_VISIBLE_REGION; 10972 } 10973 if (!isTopLeftVisible || !isBottomRightVisible) { 10974 characterBoundsFlags |= CursorAnchorInfo.FLAG_HAS_INVISIBLE_REGION; 10975 } 10976 if (isRtl) { 10977 characterBoundsFlags |= CursorAnchorInfo.FLAG_IS_RTL; 10978 } 10979 // Here offset is the index in Java chars. 10980 builder.addCharacterBounds(offset, localLeft, localTop, localRight, 10981 localBottom, characterBoundsFlags); 10982 } 10983 } 10984 } 10985 10986 /** 10987 * @hide 10988 */ 10989 public boolean isPositionVisible(final float positionX, final float positionY) { 10990 synchronized (TEMP_POSITION) { 10991 final float[] position = TEMP_POSITION; 10992 position[0] = positionX; 10993 position[1] = positionY; 10994 View view = this; 10995 10996 while (view != null) { 10997 if (view != this) { 10998 // Local scroll is already taken into account in positionX/Y 10999 position[0] -= view.getScrollX(); 11000 position[1] -= view.getScrollY(); 11001 } 11002 11003 if (position[0] < 0 || position[1] < 0 || position[0] > view.getWidth() 11004 || position[1] > view.getHeight()) { 11005 return false; 11006 } 11007 11008 if (!view.getMatrix().isIdentity()) { 11009 view.getMatrix().mapPoints(position); 11010 } 11011 11012 position[0] += view.getLeft(); 11013 position[1] += view.getTop(); 11014 11015 final ViewParent parent = view.getParent(); 11016 if (parent instanceof View) { 11017 view = (View) parent; 11018 } else { 11019 // We've reached the ViewRoot, stop iterating 11020 view = null; 11021 } 11022 } 11023 } 11024 11025 // We've been able to walk up the view hierarchy and the position was never clipped 11026 return true; 11027 } 11028 11029 /** 11030 * Performs an accessibility action after it has been offered to the 11031 * delegate. 11032 * 11033 * @hide 11034 */ 11035 @Override 11036 public boolean performAccessibilityActionInternal(int action, Bundle arguments) { 11037 if (mEditor != null 11038 && mEditor.mProcessTextIntentActionsHandler.performAccessibilityAction(action)) { 11039 return true; 11040 } 11041 switch (action) { 11042 case AccessibilityNodeInfo.ACTION_CLICK: { 11043 return performAccessibilityActionClick(arguments); 11044 } 11045 case AccessibilityNodeInfo.ACTION_COPY: { 11046 if (isFocused() && canCopy()) { 11047 if (onTextContextMenuItem(ID_COPY)) { 11048 return true; 11049 } 11050 } 11051 } return false; 11052 case AccessibilityNodeInfo.ACTION_PASTE: { 11053 if (isFocused() && canPaste()) { 11054 if (onTextContextMenuItem(ID_PASTE)) { 11055 return true; 11056 } 11057 } 11058 } return false; 11059 case AccessibilityNodeInfo.ACTION_CUT: { 11060 if (isFocused() && canCut()) { 11061 if (onTextContextMenuItem(ID_CUT)) { 11062 return true; 11063 } 11064 } 11065 } return false; 11066 case AccessibilityNodeInfo.ACTION_SET_SELECTION: { 11067 ensureIterableTextForAccessibilitySelectable(); 11068 CharSequence text = getIterableTextForAccessibility(); 11069 if (text == null) { 11070 return false; 11071 } 11072 final int start = (arguments != null) ? arguments.getInt( 11073 AccessibilityNodeInfo.ACTION_ARGUMENT_SELECTION_START_INT, -1) : -1; 11074 final int end = (arguments != null) ? arguments.getInt( 11075 AccessibilityNodeInfo.ACTION_ARGUMENT_SELECTION_END_INT, -1) : -1; 11076 if ((getSelectionStart() != start || getSelectionEnd() != end)) { 11077 // No arguments clears the selection. 11078 if (start == end && end == -1) { 11079 Selection.removeSelection((Spannable) text); 11080 return true; 11081 } 11082 if (start >= 0 && start <= end && end <= text.length()) { 11083 Selection.setSelection((Spannable) text, start, end); 11084 // Make sure selection mode is engaged. 11085 if (mEditor != null) { 11086 mEditor.startSelectionActionModeAsync(false); 11087 } 11088 return true; 11089 } 11090 } 11091 } return false; 11092 case AccessibilityNodeInfo.ACTION_NEXT_AT_MOVEMENT_GRANULARITY: 11093 case AccessibilityNodeInfo.ACTION_PREVIOUS_AT_MOVEMENT_GRANULARITY: { 11094 ensureIterableTextForAccessibilitySelectable(); 11095 return super.performAccessibilityActionInternal(action, arguments); 11096 } 11097 case ACCESSIBILITY_ACTION_SHARE: { 11098 if (isFocused() && canShare()) { 11099 if (onTextContextMenuItem(ID_SHARE)) { 11100 return true; 11101 } 11102 } 11103 } return false; 11104 case AccessibilityNodeInfo.ACTION_SET_TEXT: { 11105 if (!isEnabled() || (mBufferType != BufferType.EDITABLE)) { 11106 return false; 11107 } 11108 CharSequence text = (arguments != null) ? arguments.getCharSequence( 11109 AccessibilityNodeInfo.ACTION_ARGUMENT_SET_TEXT_CHARSEQUENCE) : null; 11110 setText(text); 11111 if (mText != null) { 11112 int updatedTextLength = mText.length(); 11113 if (updatedTextLength > 0) { 11114 Selection.setSelection(mSpannable, updatedTextLength); 11115 } 11116 } 11117 } return true; 11118 default: { 11119 return super.performAccessibilityActionInternal(action, arguments); 11120 } 11121 } 11122 } 11123 11124 private boolean performAccessibilityActionClick(Bundle arguments) { 11125 boolean handled = false; 11126 11127 if (!isEnabled()) { 11128 return false; 11129 } 11130 11131 if (isClickable() || isLongClickable()) { 11132 // Simulate View.onTouchEvent for an ACTION_UP event 11133 if (isFocusable() && !isFocused()) { 11134 requestFocus(); 11135 } 11136 11137 performClick(); 11138 handled = true; 11139 } 11140 11141 // Show the IME, except when selecting in read-only text. 11142 if ((mMovement != null || onCheckIsTextEditor()) && hasSpannableText() && mLayout != null 11143 && (isTextEditable() || isTextSelectable()) && isFocused()) { 11144 final InputMethodManager imm = InputMethodManager.peekInstance(); 11145 viewClicked(imm); 11146 if (!isTextSelectable() && mEditor.mShowSoftInputOnFocus && imm != null) { 11147 handled |= imm.showSoftInput(this, 0); 11148 } 11149 } 11150 11151 return handled; 11152 } 11153 11154 private boolean hasSpannableText() { 11155 return mText != null && mText instanceof Spannable; 11156 } 11157 11158 /** @hide */ 11159 @Override 11160 public void sendAccessibilityEventInternal(int eventType) { 11161 if (eventType == AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED && mEditor != null) { 11162 mEditor.mProcessTextIntentActionsHandler.initializeAccessibilityActions(); 11163 } 11164 11165 super.sendAccessibilityEventInternal(eventType); 11166 } 11167 11168 @Override 11169 public void sendAccessibilityEventUnchecked(AccessibilityEvent event) { 11170 // Do not send scroll events since first they are not interesting for 11171 // accessibility and second such events a generated too frequently. 11172 // For details see the implementation of bringTextIntoView(). 11173 if (event.getEventType() == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 11174 return; 11175 } 11176 super.sendAccessibilityEventUnchecked(event); 11177 } 11178 11179 /** 11180 * Returns the text that should be exposed to accessibility services. 11181 * <p> 11182 * This approximates what is displayed visually. If the user has specified 11183 * that accessibility services should speak passwords, this method will 11184 * bypass any password transformation method and return unobscured text. 11185 * 11186 * @return the text that should be exposed to accessibility services, may 11187 * be {@code null} if no text is set 11188 */ 11189 @Nullable 11190 private CharSequence getTextForAccessibility() { 11191 // If the text is empty, we must be showing the hint text. 11192 if (TextUtils.isEmpty(mText)) { 11193 return mHint; 11194 } 11195 11196 // Otherwise, return whatever text is being displayed. 11197 return TextUtils.trimToParcelableSize(mTransformed); 11198 } 11199 11200 void sendAccessibilityEventTypeViewTextChanged(CharSequence beforeText, 11201 int fromIndex, int removedCount, int addedCount) { 11202 AccessibilityEvent event = 11203 AccessibilityEvent.obtain(AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED); 11204 event.setFromIndex(fromIndex); 11205 event.setRemovedCount(removedCount); 11206 event.setAddedCount(addedCount); 11207 event.setBeforeText(beforeText); 11208 sendAccessibilityEventUnchecked(event); 11209 } 11210 11211 /** 11212 * Returns whether this text view is a current input method target. The 11213 * default implementation just checks with {@link InputMethodManager}. 11214 * @return True if the TextView is a current input method target; false otherwise. 11215 */ 11216 public boolean isInputMethodTarget() { 11217 InputMethodManager imm = InputMethodManager.peekInstance(); 11218 return imm != null && imm.isActive(this); 11219 } 11220 11221 static final int ID_SELECT_ALL = android.R.id.selectAll; 11222 static final int ID_UNDO = android.R.id.undo; 11223 static final int ID_REDO = android.R.id.redo; 11224 static final int ID_CUT = android.R.id.cut; 11225 static final int ID_COPY = android.R.id.copy; 11226 static final int ID_PASTE = android.R.id.paste; 11227 static final int ID_SHARE = android.R.id.shareText; 11228 static final int ID_PASTE_AS_PLAIN_TEXT = android.R.id.pasteAsPlainText; 11229 static final int ID_REPLACE = android.R.id.replaceText; 11230 static final int ID_ASSIST = android.R.id.textAssist; 11231 static final int ID_AUTOFILL = android.R.id.autofill; 11232 11233 /** 11234 * Called when a context menu option for the text view is selected. Currently 11235 * this will be one of {@link android.R.id#selectAll}, {@link android.R.id#cut}, 11236 * {@link android.R.id#copy}, {@link android.R.id#paste} or {@link android.R.id#shareText}. 11237 * 11238 * @return true if the context menu item action was performed. 11239 */ 11240 public boolean onTextContextMenuItem(int id) { 11241 int min = 0; 11242 int max = mText.length(); 11243 11244 if (isFocused()) { 11245 final int selStart = getSelectionStart(); 11246 final int selEnd = getSelectionEnd(); 11247 11248 min = Math.max(0, Math.min(selStart, selEnd)); 11249 max = Math.max(0, Math.max(selStart, selEnd)); 11250 } 11251 11252 switch (id) { 11253 case ID_SELECT_ALL: 11254 final boolean hadSelection = hasSelection(); 11255 selectAllText(); 11256 if (mEditor != null && hadSelection) { 11257 mEditor.invalidateActionModeAsync(); 11258 } 11259 return true; 11260 11261 case ID_UNDO: 11262 if (mEditor != null) { 11263 mEditor.undo(); 11264 } 11265 return true; // Returns true even if nothing was undone. 11266 11267 case ID_REDO: 11268 if (mEditor != null) { 11269 mEditor.redo(); 11270 } 11271 return true; // Returns true even if nothing was undone. 11272 11273 case ID_PASTE: 11274 paste(min, max, true /* withFormatting */); 11275 return true; 11276 11277 case ID_PASTE_AS_PLAIN_TEXT: 11278 paste(min, max, false /* withFormatting */); 11279 return true; 11280 11281 case ID_CUT: 11282 final ClipData cutData = ClipData.newPlainText(null, getTransformedText(min, max)); 11283 if (setPrimaryClip(cutData)) { 11284 deleteText_internal(min, max); 11285 } else { 11286 Toast.makeText(getContext(), 11287 com.android.internal.R.string.failed_to_copy_to_clipboard, 11288 Toast.LENGTH_SHORT).show(); 11289 } 11290 return true; 11291 11292 case ID_COPY: 11293 // For link action mode in a non-selectable/non-focusable TextView, 11294 // make sure that we set the appropriate min/max. 11295 final int selStart = getSelectionStart(); 11296 final int selEnd = getSelectionEnd(); 11297 min = Math.max(0, Math.min(selStart, selEnd)); 11298 max = Math.max(0, Math.max(selStart, selEnd)); 11299 final ClipData copyData = ClipData.newPlainText(null, getTransformedText(min, max)); 11300 if (setPrimaryClip(copyData)) { 11301 stopTextActionMode(); 11302 } else { 11303 Toast.makeText(getContext(), 11304 com.android.internal.R.string.failed_to_copy_to_clipboard, 11305 Toast.LENGTH_SHORT).show(); 11306 } 11307 return true; 11308 11309 case ID_REPLACE: 11310 if (mEditor != null) { 11311 mEditor.replace(); 11312 } 11313 return true; 11314 11315 case ID_SHARE: 11316 shareSelectedText(); 11317 return true; 11318 11319 case ID_AUTOFILL: 11320 requestAutofill(); 11321 stopTextActionMode(); 11322 return true; 11323 } 11324 return false; 11325 } 11326 11327 CharSequence getTransformedText(int start, int end) { 11328 return removeSuggestionSpans(mTransformed.subSequence(start, end)); 11329 } 11330 11331 @Override 11332 public boolean performLongClick() { 11333 boolean handled = false; 11334 boolean performedHapticFeedback = false; 11335 11336 if (mEditor != null) { 11337 mEditor.mIsBeingLongClicked = true; 11338 } 11339 11340 if (super.performLongClick()) { 11341 handled = true; 11342 performedHapticFeedback = true; 11343 } 11344 11345 if (mEditor != null) { 11346 handled |= mEditor.performLongClick(handled); 11347 mEditor.mIsBeingLongClicked = false; 11348 } 11349 11350 if (handled) { 11351 if (!performedHapticFeedback) { 11352 performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 11353 } 11354 if (mEditor != null) mEditor.mDiscardNextActionUp = true; 11355 } else { 11356 MetricsLogger.action( 11357 mContext, 11358 MetricsEvent.TEXT_LONGPRESS, 11359 TextViewMetrics.SUBTYPE_LONG_PRESS_OTHER); 11360 } 11361 11362 return handled; 11363 } 11364 11365 @Override 11366 protected void onScrollChanged(int horiz, int vert, int oldHoriz, int oldVert) { 11367 super.onScrollChanged(horiz, vert, oldHoriz, oldVert); 11368 if (mEditor != null) { 11369 mEditor.onScrollChanged(); 11370 } 11371 } 11372 11373 /** 11374 * Return whether or not suggestions are enabled on this TextView. The suggestions are generated 11375 * by the IME or by the spell checker as the user types. This is done by adding 11376 * {@link SuggestionSpan}s to the text. 11377 * 11378 * When suggestions are enabled (default), this list of suggestions will be displayed when the 11379 * user asks for them on these parts of the text. This value depends on the inputType of this 11380 * TextView. 11381 * 11382 * The class of the input type must be {@link InputType#TYPE_CLASS_TEXT}. 11383 * 11384 * In addition, the type variation must be one of 11385 * {@link InputType#TYPE_TEXT_VARIATION_NORMAL}, 11386 * {@link InputType#TYPE_TEXT_VARIATION_EMAIL_SUBJECT}, 11387 * {@link InputType#TYPE_TEXT_VARIATION_LONG_MESSAGE}, 11388 * {@link InputType#TYPE_TEXT_VARIATION_SHORT_MESSAGE} or 11389 * {@link InputType#TYPE_TEXT_VARIATION_WEB_EDIT_TEXT}. 11390 * 11391 * And finally, the {@link InputType#TYPE_TEXT_FLAG_NO_SUGGESTIONS} flag must <i>not</i> be set. 11392 * 11393 * @return true if the suggestions popup window is enabled, based on the inputType. 11394 */ 11395 public boolean isSuggestionsEnabled() { 11396 if (mEditor == null) return false; 11397 if ((mEditor.mInputType & InputType.TYPE_MASK_CLASS) != InputType.TYPE_CLASS_TEXT) { 11398 return false; 11399 } 11400 if ((mEditor.mInputType & InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS) > 0) return false; 11401 11402 final int variation = mEditor.mInputType & EditorInfo.TYPE_MASK_VARIATION; 11403 return (variation == EditorInfo.TYPE_TEXT_VARIATION_NORMAL 11404 || variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT 11405 || variation == EditorInfo.TYPE_TEXT_VARIATION_LONG_MESSAGE 11406 || variation == EditorInfo.TYPE_TEXT_VARIATION_SHORT_MESSAGE 11407 || variation == EditorInfo.TYPE_TEXT_VARIATION_WEB_EDIT_TEXT); 11408 } 11409 11410 /** 11411 * If provided, this ActionMode.Callback will be used to create the ActionMode when text 11412 * selection is initiated in this View. 11413 * 11414 * <p>The standard implementation populates the menu with a subset of Select All, Cut, Copy, 11415 * Paste, Replace and Share actions, depending on what this View supports. 11416 * 11417 * <p>A custom implementation can add new entries in the default menu in its 11418 * {@link android.view.ActionMode.Callback#onPrepareActionMode(ActionMode, android.view.Menu)} 11419 * method. The default actions can also be removed from the menu using 11420 * {@link android.view.Menu#removeItem(int)} and passing {@link android.R.id#selectAll}, 11421 * {@link android.R.id#cut}, {@link android.R.id#copy}, {@link android.R.id#paste}, 11422 * {@link android.R.id#replaceText} or {@link android.R.id#shareText} ids as parameters. 11423 * 11424 * <p>Returning false from 11425 * {@link android.view.ActionMode.Callback#onCreateActionMode(ActionMode, android.view.Menu)} 11426 * will prevent the action mode from being started. 11427 * 11428 * <p>Action click events should be handled by the custom implementation of 11429 * {@link android.view.ActionMode.Callback#onActionItemClicked(ActionMode, 11430 * android.view.MenuItem)}. 11431 * 11432 * <p>Note that text selection mode is not started when a TextView receives focus and the 11433 * {@link android.R.attr#selectAllOnFocus} flag has been set. The content is highlighted in 11434 * that case, to allow for quick replacement. 11435 */ 11436 public void setCustomSelectionActionModeCallback(ActionMode.Callback actionModeCallback) { 11437 createEditorIfNeeded(); 11438 mEditor.mCustomSelectionActionModeCallback = actionModeCallback; 11439 } 11440 11441 /** 11442 * Retrieves the value set in {@link #setCustomSelectionActionModeCallback}. Default is null. 11443 * 11444 * @return The current custom selection callback. 11445 */ 11446 public ActionMode.Callback getCustomSelectionActionModeCallback() { 11447 return mEditor == null ? null : mEditor.mCustomSelectionActionModeCallback; 11448 } 11449 11450 /** 11451 * If provided, this ActionMode.Callback will be used to create the ActionMode when text 11452 * insertion is initiated in this View. 11453 * The standard implementation populates the menu with a subset of Select All, 11454 * Paste and Replace actions, depending on what this View supports. 11455 * 11456 * <p>A custom implementation can add new entries in the default menu in its 11457 * {@link android.view.ActionMode.Callback#onPrepareActionMode(android.view.ActionMode, 11458 * android.view.Menu)} method. The default actions can also be removed from the menu using 11459 * {@link android.view.Menu#removeItem(int)} and passing {@link android.R.id#selectAll}, 11460 * {@link android.R.id#paste} or {@link android.R.id#replaceText} ids as parameters.</p> 11461 * 11462 * <p>Returning false from 11463 * {@link android.view.ActionMode.Callback#onCreateActionMode(android.view.ActionMode, 11464 * android.view.Menu)} will prevent the action mode from being started.</p> 11465 * 11466 * <p>Action click events should be handled by the custom implementation of 11467 * {@link android.view.ActionMode.Callback#onActionItemClicked(android.view.ActionMode, 11468 * android.view.MenuItem)}.</p> 11469 * 11470 * <p>Note that text insertion mode is not started when a TextView receives focus and the 11471 * {@link android.R.attr#selectAllOnFocus} flag has been set.</p> 11472 */ 11473 public void setCustomInsertionActionModeCallback(ActionMode.Callback actionModeCallback) { 11474 createEditorIfNeeded(); 11475 mEditor.mCustomInsertionActionModeCallback = actionModeCallback; 11476 } 11477 11478 /** 11479 * Retrieves the value set in {@link #setCustomInsertionActionModeCallback}. Default is null. 11480 * 11481 * @return The current custom insertion callback. 11482 */ 11483 public ActionMode.Callback getCustomInsertionActionModeCallback() { 11484 return mEditor == null ? null : mEditor.mCustomInsertionActionModeCallback; 11485 } 11486 11487 /** 11488 * Sets the {@link TextClassifier} for this TextView. 11489 */ 11490 public void setTextClassifier(@Nullable TextClassifier textClassifier) { 11491 mTextClassifier = textClassifier; 11492 } 11493 11494 /** 11495 * Returns the {@link TextClassifier} used by this TextView. 11496 * If no TextClassifier has been set, this TextView uses the default set by the 11497 * {@link TextClassificationManager}. 11498 */ 11499 @NonNull 11500 public TextClassifier getTextClassifier() { 11501 if (mTextClassifier == null) { 11502 final TextClassificationManager tcm = 11503 mContext.getSystemService(TextClassificationManager.class); 11504 if (tcm != null) { 11505 return tcm.getTextClassifier(); 11506 } 11507 return TextClassifier.NO_OP; 11508 } 11509 return mTextClassifier; 11510 } 11511 11512 /** 11513 * Returns a session-aware text classifier. 11514 * This method creates one if none already exists or the current one is destroyed. 11515 */ 11516 @NonNull 11517 TextClassifier getTextClassificationSession() { 11518 if (mTextClassificationSession == null || mTextClassificationSession.isDestroyed()) { 11519 final TextClassificationManager tcm = 11520 mContext.getSystemService(TextClassificationManager.class); 11521 if (tcm != null) { 11522 final String widgetType; 11523 if (isTextEditable()) { 11524 widgetType = TextClassifier.WIDGET_TYPE_EDITTEXT; 11525 } else if (isTextSelectable()) { 11526 widgetType = TextClassifier.WIDGET_TYPE_TEXTVIEW; 11527 } else { 11528 widgetType = TextClassifier.WIDGET_TYPE_UNSELECTABLE_TEXTVIEW; 11529 } 11530 final TextClassificationContext textClassificationContext = 11531 new TextClassificationContext.Builder( 11532 mContext.getPackageName(), widgetType) 11533 .build(); 11534 if (mTextClassifier != null) { 11535 mTextClassificationSession = tcm.createTextClassificationSession( 11536 textClassificationContext, mTextClassifier); 11537 } else { 11538 mTextClassificationSession = tcm.createTextClassificationSession( 11539 textClassificationContext); 11540 } 11541 } else { 11542 mTextClassificationSession = TextClassifier.NO_OP; 11543 } 11544 } 11545 return mTextClassificationSession; 11546 } 11547 11548 /** 11549 * Returns true if this TextView uses a no-op TextClassifier. 11550 */ 11551 boolean usesNoOpTextClassifier() { 11552 return getTextClassifier() == TextClassifier.NO_OP; 11553 } 11554 11555 11556 /** 11557 * Starts an ActionMode for the specified TextLinkSpan. 11558 * 11559 * @return Whether or not we're attempting to start the action mode. 11560 * @hide 11561 */ 11562 public boolean requestActionMode(@NonNull TextLinks.TextLinkSpan clickedSpan) { 11563 Preconditions.checkNotNull(clickedSpan); 11564 11565 if (!(mText instanceof Spanned)) { 11566 return false; 11567 } 11568 11569 final int start = ((Spanned) mText).getSpanStart(clickedSpan); 11570 final int end = ((Spanned) mText).getSpanEnd(clickedSpan); 11571 11572 if (start < 0 || end > mText.length() || start >= end) { 11573 return false; 11574 } 11575 11576 createEditorIfNeeded(); 11577 mEditor.startLinkActionModeAsync(start, end); 11578 return true; 11579 } 11580 11581 /** 11582 * Handles a click on the specified TextLinkSpan. 11583 * 11584 * @return Whether or not the click is being handled. 11585 * @hide 11586 */ 11587 public boolean handleClick(@NonNull TextLinks.TextLinkSpan clickedSpan) { 11588 Preconditions.checkNotNull(clickedSpan); 11589 if (mText instanceof Spanned) { 11590 final Spanned spanned = (Spanned) mText; 11591 final int start = spanned.getSpanStart(clickedSpan); 11592 final int end = spanned.getSpanEnd(clickedSpan); 11593 if (start >= 0 && end <= mText.length() && start < end) { 11594 final TextClassification.Request request = new TextClassification.Request.Builder( 11595 mText, start, end) 11596 .setDefaultLocales(getTextLocales()) 11597 .build(); 11598 final Supplier<TextClassification> supplier = () -> 11599 getTextClassifier().classifyText(request); 11600 final Consumer<TextClassification> consumer = classification -> { 11601 if (classification != null) { 11602 if (!classification.getActions().isEmpty()) { 11603 try { 11604 classification.getActions().get(0).getActionIntent().send(); 11605 } catch (PendingIntent.CanceledException e) { 11606 Log.e(LOG_TAG, "Error sending PendingIntent", e); 11607 } 11608 } else { 11609 Log.d(LOG_TAG, "No link action to perform"); 11610 } 11611 } else { 11612 // classification == null 11613 Log.d(LOG_TAG, "Timeout while classifying text"); 11614 } 11615 }; 11616 CompletableFuture.supplyAsync(supplier) 11617 .completeOnTimeout(null, 1, TimeUnit.SECONDS) 11618 .thenAccept(consumer); 11619 return true; 11620 } 11621 } 11622 return false; 11623 } 11624 11625 /** 11626 * @hide 11627 */ 11628 protected void stopTextActionMode() { 11629 if (mEditor != null) { 11630 mEditor.stopTextActionMode(); 11631 } 11632 } 11633 11634 /** @hide */ 11635 public void hideFloatingToolbar(int durationMs) { 11636 if (mEditor != null) { 11637 mEditor.hideFloatingToolbar(durationMs); 11638 } 11639 } 11640 11641 boolean canUndo() { 11642 return mEditor != null && mEditor.canUndo(); 11643 } 11644 11645 boolean canRedo() { 11646 return mEditor != null && mEditor.canRedo(); 11647 } 11648 11649 boolean canCut() { 11650 if (hasPasswordTransformationMethod()) { 11651 return false; 11652 } 11653 11654 if (mText.length() > 0 && hasSelection() && mText instanceof Editable && mEditor != null 11655 && mEditor.mKeyListener != null) { 11656 return true; 11657 } 11658 11659 return false; 11660 } 11661 11662 boolean canCopy() { 11663 if (hasPasswordTransformationMethod()) { 11664 return false; 11665 } 11666 11667 if (mText.length() > 0 && hasSelection() && mEditor != null) { 11668 return true; 11669 } 11670 11671 return false; 11672 } 11673 11674 boolean canShare() { 11675 if (!getContext().canStartActivityForResult() || !isDeviceProvisioned()) { 11676 return false; 11677 } 11678 return canCopy(); 11679 } 11680 11681 boolean isDeviceProvisioned() { 11682 if (mDeviceProvisionedState == DEVICE_PROVISIONED_UNKNOWN) { 11683 mDeviceProvisionedState = Settings.Global.getInt( 11684 mContext.getContentResolver(), Settings.Global.DEVICE_PROVISIONED, 0) != 0 11685 ? DEVICE_PROVISIONED_YES 11686 : DEVICE_PROVISIONED_NO; 11687 } 11688 return mDeviceProvisionedState == DEVICE_PROVISIONED_YES; 11689 } 11690 11691 boolean canPaste() { 11692 return (mText instanceof Editable 11693 && mEditor != null && mEditor.mKeyListener != null 11694 && getSelectionStart() >= 0 11695 && getSelectionEnd() >= 0 11696 && ((ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE)) 11697 .hasPrimaryClip()); 11698 } 11699 11700 boolean canPasteAsPlainText() { 11701 if (!canPaste()) { 11702 return false; 11703 } 11704 11705 final ClipData clipData = 11706 ((ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE)) 11707 .getPrimaryClip(); 11708 final ClipDescription description = clipData.getDescription(); 11709 final boolean isPlainType = description.hasMimeType(ClipDescription.MIMETYPE_TEXT_PLAIN); 11710 final CharSequence text = clipData.getItemAt(0).getText(); 11711 if (isPlainType && (text instanceof Spanned)) { 11712 Spanned spanned = (Spanned) text; 11713 if (TextUtils.hasStyleSpan(spanned)) { 11714 return true; 11715 } 11716 } 11717 return description.hasMimeType(ClipDescription.MIMETYPE_TEXT_HTML); 11718 } 11719 11720 boolean canProcessText() { 11721 if (getId() == View.NO_ID) { 11722 return false; 11723 } 11724 return canShare(); 11725 } 11726 11727 boolean canSelectAllText() { 11728 return canSelectText() && !hasPasswordTransformationMethod() 11729 && !(getSelectionStart() == 0 && getSelectionEnd() == mText.length()); 11730 } 11731 11732 boolean selectAllText() { 11733 if (mEditor != null) { 11734 // Hide the toolbar before changing the selection to avoid flickering. 11735 hideFloatingToolbar(FLOATING_TOOLBAR_SELECT_ALL_REFRESH_DELAY); 11736 } 11737 final int length = mText.length(); 11738 Selection.setSelection(mSpannable, 0, length); 11739 return length > 0; 11740 } 11741 11742 void replaceSelectionWithText(CharSequence text) { 11743 ((Editable) mText).replace(getSelectionStart(), getSelectionEnd(), text); 11744 } 11745 11746 /** 11747 * Paste clipboard content between min and max positions. 11748 */ 11749 private void paste(int min, int max, boolean withFormatting) { 11750 ClipboardManager clipboard = 11751 (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE); 11752 ClipData clip = clipboard.getPrimaryClip(); 11753 if (clip != null) { 11754 boolean didFirst = false; 11755 for (int i = 0; i < clip.getItemCount(); i++) { 11756 final CharSequence paste; 11757 if (withFormatting) { 11758 paste = clip.getItemAt(i).coerceToStyledText(getContext()); 11759 } else { 11760 // Get an item as text and remove all spans by toString(). 11761 final CharSequence text = clip.getItemAt(i).coerceToText(getContext()); 11762 paste = (text instanceof Spanned) ? text.toString() : text; 11763 } 11764 if (paste != null) { 11765 if (!didFirst) { 11766 Selection.setSelection(mSpannable, max); 11767 ((Editable) mText).replace(min, max, paste); 11768 didFirst = true; 11769 } else { 11770 ((Editable) mText).insert(getSelectionEnd(), "\n"); 11771 ((Editable) mText).insert(getSelectionEnd(), paste); 11772 } 11773 } 11774 } 11775 sLastCutCopyOrTextChangedTime = 0; 11776 } 11777 } 11778 11779 private void shareSelectedText() { 11780 String selectedText = getSelectedText(); 11781 if (selectedText != null && !selectedText.isEmpty()) { 11782 Intent sharingIntent = new Intent(android.content.Intent.ACTION_SEND); 11783 sharingIntent.setType("text/plain"); 11784 sharingIntent.removeExtra(android.content.Intent.EXTRA_TEXT); 11785 selectedText = TextUtils.trimToParcelableSize(selectedText); 11786 sharingIntent.putExtra(android.content.Intent.EXTRA_TEXT, selectedText); 11787 getContext().startActivity(Intent.createChooser(sharingIntent, null)); 11788 Selection.setSelection(mSpannable, getSelectionEnd()); 11789 } 11790 } 11791 11792 @CheckResult 11793 private boolean setPrimaryClip(ClipData clip) { 11794 ClipboardManager clipboard = 11795 (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE); 11796 try { 11797 clipboard.setPrimaryClip(clip); 11798 } catch (Throwable t) { 11799 return false; 11800 } 11801 sLastCutCopyOrTextChangedTime = SystemClock.uptimeMillis(); 11802 return true; 11803 } 11804 11805 /** 11806 * Get the character offset closest to the specified absolute position. A typical use case is to 11807 * pass the result of {@link MotionEvent#getX()} and {@link MotionEvent#getY()} to this method. 11808 * 11809 * @param x The horizontal absolute position of a point on screen 11810 * @param y The vertical absolute position of a point on screen 11811 * @return the character offset for the character whose position is closest to the specified 11812 * position. Returns -1 if there is no layout. 11813 */ 11814 public int getOffsetForPosition(float x, float y) { 11815 if (getLayout() == null) return -1; 11816 final int line = getLineAtCoordinate(y); 11817 final int offset = getOffsetAtCoordinate(line, x); 11818 return offset; 11819 } 11820 11821 float convertToLocalHorizontalCoordinate(float x) { 11822 x -= getTotalPaddingLeft(); 11823 // Clamp the position to inside of the view. 11824 x = Math.max(0.0f, x); 11825 x = Math.min(getWidth() - getTotalPaddingRight() - 1, x); 11826 x += getScrollX(); 11827 return x; 11828 } 11829 11830 int getLineAtCoordinate(float y) { 11831 y -= getTotalPaddingTop(); 11832 // Clamp the position to inside of the view. 11833 y = Math.max(0.0f, y); 11834 y = Math.min(getHeight() - getTotalPaddingBottom() - 1, y); 11835 y += getScrollY(); 11836 return getLayout().getLineForVertical((int) y); 11837 } 11838 11839 int getLineAtCoordinateUnclamped(float y) { 11840 y -= getTotalPaddingTop(); 11841 y += getScrollY(); 11842 return getLayout().getLineForVertical((int) y); 11843 } 11844 11845 int getOffsetAtCoordinate(int line, float x) { 11846 x = convertToLocalHorizontalCoordinate(x); 11847 return getLayout().getOffsetForHorizontal(line, x); 11848 } 11849 11850 @Override 11851 public boolean onDragEvent(DragEvent event) { 11852 switch (event.getAction()) { 11853 case DragEvent.ACTION_DRAG_STARTED: 11854 return mEditor != null && mEditor.hasInsertionController(); 11855 11856 case DragEvent.ACTION_DRAG_ENTERED: 11857 TextView.this.requestFocus(); 11858 return true; 11859 11860 case DragEvent.ACTION_DRAG_LOCATION: 11861 if (mText instanceof Spannable) { 11862 final int offset = getOffsetForPosition(event.getX(), event.getY()); 11863 Selection.setSelection(mSpannable, offset); 11864 } 11865 return true; 11866 11867 case DragEvent.ACTION_DROP: 11868 if (mEditor != null) mEditor.onDrop(event); 11869 return true; 11870 11871 case DragEvent.ACTION_DRAG_ENDED: 11872 case DragEvent.ACTION_DRAG_EXITED: 11873 default: 11874 return true; 11875 } 11876 } 11877 11878 boolean isInBatchEditMode() { 11879 if (mEditor == null) return false; 11880 final Editor.InputMethodState ims = mEditor.mInputMethodState; 11881 if (ims != null) { 11882 return ims.mBatchEditNesting > 0; 11883 } 11884 return mEditor.mInBatchEditControllers; 11885 } 11886 11887 @Override 11888 public void onRtlPropertiesChanged(int layoutDirection) { 11889 super.onRtlPropertiesChanged(layoutDirection); 11890 11891 final TextDirectionHeuristic newTextDir = getTextDirectionHeuristic(); 11892 if (mTextDir != newTextDir) { 11893 mTextDir = newTextDir; 11894 if (mLayout != null) { 11895 checkForRelayout(); 11896 } 11897 } 11898 } 11899 11900 /** 11901 * Returns the current {@link TextDirectionHeuristic}. 11902 * 11903 * @return the current {@link TextDirectionHeuristic}. 11904 * @hide 11905 */ 11906 protected TextDirectionHeuristic getTextDirectionHeuristic() { 11907 if (hasPasswordTransformationMethod()) { 11908 // passwords fields should be LTR 11909 return TextDirectionHeuristics.LTR; 11910 } 11911 11912 if (mEditor != null 11913 && (mEditor.mInputType & EditorInfo.TYPE_MASK_CLASS) 11914 == EditorInfo.TYPE_CLASS_PHONE) { 11915 // Phone numbers must be in the direction of the locale's digits. Most locales have LTR 11916 // digits, but some locales, such as those written in the Adlam or N'Ko scripts, have 11917 // RTL digits. 11918 final DecimalFormatSymbols symbols = DecimalFormatSymbols.getInstance(getTextLocale()); 11919 final String zero = symbols.getDigitStrings()[0]; 11920 // In case the zero digit is multi-codepoint, just use the first codepoint to determine 11921 // direction. 11922 final int firstCodepoint = zero.codePointAt(0); 11923 final byte digitDirection = Character.getDirectionality(firstCodepoint); 11924 if (digitDirection == Character.DIRECTIONALITY_RIGHT_TO_LEFT 11925 || digitDirection == Character.DIRECTIONALITY_RIGHT_TO_LEFT_ARABIC) { 11926 return TextDirectionHeuristics.RTL; 11927 } else { 11928 return TextDirectionHeuristics.LTR; 11929 } 11930 } 11931 11932 // Always need to resolve layout direction first 11933 final boolean defaultIsRtl = (getLayoutDirection() == LAYOUT_DIRECTION_RTL); 11934 11935 // Now, we can select the heuristic 11936 switch (getTextDirection()) { 11937 default: 11938 case TEXT_DIRECTION_FIRST_STRONG: 11939 return (defaultIsRtl ? TextDirectionHeuristics.FIRSTSTRONG_RTL : 11940 TextDirectionHeuristics.FIRSTSTRONG_LTR); 11941 case TEXT_DIRECTION_ANY_RTL: 11942 return TextDirectionHeuristics.ANYRTL_LTR; 11943 case TEXT_DIRECTION_LTR: 11944 return TextDirectionHeuristics.LTR; 11945 case TEXT_DIRECTION_RTL: 11946 return TextDirectionHeuristics.RTL; 11947 case TEXT_DIRECTION_LOCALE: 11948 return TextDirectionHeuristics.LOCALE; 11949 case TEXT_DIRECTION_FIRST_STRONG_LTR: 11950 return TextDirectionHeuristics.FIRSTSTRONG_LTR; 11951 case TEXT_DIRECTION_FIRST_STRONG_RTL: 11952 return TextDirectionHeuristics.FIRSTSTRONG_RTL; 11953 } 11954 } 11955 11956 /** 11957 * @hide 11958 */ 11959 @Override 11960 public void onResolveDrawables(int layoutDirection) { 11961 // No need to resolve twice 11962 if (mLastLayoutDirection == layoutDirection) { 11963 return; 11964 } 11965 mLastLayoutDirection = layoutDirection; 11966 11967 // Resolve drawables 11968 if (mDrawables != null) { 11969 if (mDrawables.resolveWithLayoutDirection(layoutDirection)) { 11970 prepareDrawableForDisplay(mDrawables.mShowing[Drawables.LEFT]); 11971 prepareDrawableForDisplay(mDrawables.mShowing[Drawables.RIGHT]); 11972 applyCompoundDrawableTint(); 11973 } 11974 } 11975 } 11976 11977 /** 11978 * Prepares a drawable for display by propagating layout direction and 11979 * drawable state. 11980 * 11981 * @param dr the drawable to prepare 11982 */ 11983 private void prepareDrawableForDisplay(@Nullable Drawable dr) { 11984 if (dr == null) { 11985 return; 11986 } 11987 11988 dr.setLayoutDirection(getLayoutDirection()); 11989 11990 if (dr.isStateful()) { 11991 dr.setState(getDrawableState()); 11992 dr.jumpToCurrentState(); 11993 } 11994 } 11995 11996 /** 11997 * @hide 11998 */ 11999 protected void resetResolvedDrawables() { 12000 super.resetResolvedDrawables(); 12001 mLastLayoutDirection = -1; 12002 } 12003 12004 /** 12005 * @hide 12006 */ 12007 protected void viewClicked(InputMethodManager imm) { 12008 if (imm != null) { 12009 imm.viewClicked(this); 12010 } 12011 } 12012 12013 /** 12014 * Deletes the range of text [start, end[. 12015 * @hide 12016 */ 12017 protected void deleteText_internal(int start, int end) { 12018 ((Editable) mText).delete(start, end); 12019 } 12020 12021 /** 12022 * Replaces the range of text [start, end[ by replacement text 12023 * @hide 12024 */ 12025 protected void replaceText_internal(int start, int end, CharSequence text) { 12026 ((Editable) mText).replace(start, end, text); 12027 } 12028 12029 /** 12030 * Sets a span on the specified range of text 12031 * @hide 12032 */ 12033 protected void setSpan_internal(Object span, int start, int end, int flags) { 12034 ((Editable) mText).setSpan(span, start, end, flags); 12035 } 12036 12037 /** 12038 * Moves the cursor to the specified offset position in text 12039 * @hide 12040 */ 12041 protected void setCursorPosition_internal(int start, int end) { 12042 Selection.setSelection(((Editable) mText), start, end); 12043 } 12044 12045 /** 12046 * An Editor should be created as soon as any of the editable-specific fields (grouped 12047 * inside the Editor object) is assigned to a non-default value. 12048 * This method will create the Editor if needed. 12049 * 12050 * A standard TextView (as well as buttons, checkboxes...) should not qualify and hence will 12051 * have a null Editor, unlike an EditText. Inconsistent in-between states will have an 12052 * Editor for backward compatibility, as soon as one of these fields is assigned. 12053 * 12054 * Also note that for performance reasons, the mEditor is created when needed, but not 12055 * reset when no more edit-specific fields are needed. 12056 */ 12057 private void createEditorIfNeeded() { 12058 if (mEditor == null) { 12059 mEditor = new Editor(this); 12060 } 12061 } 12062 12063 /** 12064 * @hide 12065 */ 12066 @Override 12067 public CharSequence getIterableTextForAccessibility() { 12068 return mText; 12069 } 12070 12071 private void ensureIterableTextForAccessibilitySelectable() { 12072 if (!(mText instanceof Spannable)) { 12073 setText(mText, BufferType.SPANNABLE); 12074 } 12075 } 12076 12077 /** 12078 * @hide 12079 */ 12080 @Override 12081 public TextSegmentIterator getIteratorForGranularity(int granularity) { 12082 switch (granularity) { 12083 case AccessibilityNodeInfo.MOVEMENT_GRANULARITY_LINE: { 12084 Spannable text = (Spannable) getIterableTextForAccessibility(); 12085 if (!TextUtils.isEmpty(text) && getLayout() != null) { 12086 AccessibilityIterators.LineTextSegmentIterator iterator = 12087 AccessibilityIterators.LineTextSegmentIterator.getInstance(); 12088 iterator.initialize(text, getLayout()); 12089 return iterator; 12090 } 12091 } break; 12092 case AccessibilityNodeInfo.MOVEMENT_GRANULARITY_PAGE: { 12093 Spannable text = (Spannable) getIterableTextForAccessibility(); 12094 if (!TextUtils.isEmpty(text) && getLayout() != null) { 12095 AccessibilityIterators.PageTextSegmentIterator iterator = 12096 AccessibilityIterators.PageTextSegmentIterator.getInstance(); 12097 iterator.initialize(this); 12098 return iterator; 12099 } 12100 } break; 12101 } 12102 return super.getIteratorForGranularity(granularity); 12103 } 12104 12105 /** 12106 * @hide 12107 */ 12108 @Override 12109 public int getAccessibilitySelectionStart() { 12110 return getSelectionStart(); 12111 } 12112 12113 /** 12114 * @hide 12115 */ 12116 public boolean isAccessibilitySelectionExtendable() { 12117 return true; 12118 } 12119 12120 /** 12121 * @hide 12122 */ 12123 @Override 12124 public int getAccessibilitySelectionEnd() { 12125 return getSelectionEnd(); 12126 } 12127 12128 /** 12129 * @hide 12130 */ 12131 @Override 12132 public void setAccessibilitySelection(int start, int end) { 12133 if (getAccessibilitySelectionStart() == start 12134 && getAccessibilitySelectionEnd() == end) { 12135 return; 12136 } 12137 CharSequence text = getIterableTextForAccessibility(); 12138 if (Math.min(start, end) >= 0 && Math.max(start, end) <= text.length()) { 12139 Selection.setSelection((Spannable) text, start, end); 12140 } else { 12141 Selection.removeSelection((Spannable) text); 12142 } 12143 // Hide all selection controllers used for adjusting selection 12144 // since we are doing so explicitlty by other means and these 12145 // controllers interact with how selection behaves. 12146 if (mEditor != null) { 12147 mEditor.hideCursorAndSpanControllers(); 12148 mEditor.stopTextActionMode(); 12149 } 12150 } 12151 12152 /** @hide */ 12153 @Override 12154 protected void encodeProperties(@NonNull ViewHierarchyEncoder stream) { 12155 super.encodeProperties(stream); 12156 12157 TruncateAt ellipsize = getEllipsize(); 12158 stream.addProperty("text:ellipsize", ellipsize == null ? null : ellipsize.name()); 12159 stream.addProperty("text:textSize", getTextSize()); 12160 stream.addProperty("text:scaledTextSize", getScaledTextSize()); 12161 stream.addProperty("text:typefaceStyle", getTypefaceStyle()); 12162 stream.addProperty("text:selectionStart", getSelectionStart()); 12163 stream.addProperty("text:selectionEnd", getSelectionEnd()); 12164 stream.addProperty("text:curTextColor", mCurTextColor); 12165 stream.addProperty("text:text", mText == null ? null : mText.toString()); 12166 stream.addProperty("text:gravity", mGravity); 12167 } 12168 12169 /** 12170 * User interface state that is stored by TextView for implementing 12171 * {@link View#onSaveInstanceState}. 12172 */ 12173 public static class SavedState extends BaseSavedState { 12174 int selStart = -1; 12175 int selEnd = -1; 12176 CharSequence text; 12177 boolean frozenWithFocus; 12178 CharSequence error; 12179 ParcelableParcel editorState; // Optional state from Editor. 12180 12181 SavedState(Parcelable superState) { 12182 super(superState); 12183 } 12184 12185 @Override 12186 public void writeToParcel(Parcel out, int flags) { 12187 super.writeToParcel(out, flags); 12188 out.writeInt(selStart); 12189 out.writeInt(selEnd); 12190 out.writeInt(frozenWithFocus ? 1 : 0); 12191 TextUtils.writeToParcel(text, out, flags); 12192 12193 if (error == null) { 12194 out.writeInt(0); 12195 } else { 12196 out.writeInt(1); 12197 TextUtils.writeToParcel(error, out, flags); 12198 } 12199 12200 if (editorState == null) { 12201 out.writeInt(0); 12202 } else { 12203 out.writeInt(1); 12204 editorState.writeToParcel(out, flags); 12205 } 12206 } 12207 12208 @Override 12209 public String toString() { 12210 String str = "TextView.SavedState{" 12211 + Integer.toHexString(System.identityHashCode(this)) 12212 + " start=" + selStart + " end=" + selEnd; 12213 if (text != null) { 12214 str += " text=" + text; 12215 } 12216 return str + "}"; 12217 } 12218 12219 @SuppressWarnings("hiding") 12220 public static final Parcelable.Creator<SavedState> CREATOR = 12221 new Parcelable.Creator<SavedState>() { 12222 public SavedState createFromParcel(Parcel in) { 12223 return new SavedState(in); 12224 } 12225 12226 public SavedState[] newArray(int size) { 12227 return new SavedState[size]; 12228 } 12229 }; 12230 12231 private SavedState(Parcel in) { 12232 super(in); 12233 selStart = in.readInt(); 12234 selEnd = in.readInt(); 12235 frozenWithFocus = (in.readInt() != 0); 12236 text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 12237 12238 if (in.readInt() != 0) { 12239 error = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); 12240 } 12241 12242 if (in.readInt() != 0) { 12243 editorState = ParcelableParcel.CREATOR.createFromParcel(in); 12244 } 12245 } 12246 } 12247 12248 private static class CharWrapper implements CharSequence, GetChars, GraphicsOperations { 12249 private char[] mChars; 12250 private int mStart, mLength; 12251 12252 public CharWrapper(char[] chars, int start, int len) { 12253 mChars = chars; 12254 mStart = start; 12255 mLength = len; 12256 } 12257 12258 /* package */ void set(char[] chars, int start, int len) { 12259 mChars = chars; 12260 mStart = start; 12261 mLength = len; 12262 } 12263 12264 public int length() { 12265 return mLength; 12266 } 12267 12268 public char charAt(int off) { 12269 return mChars[off + mStart]; 12270 } 12271 12272 @Override 12273 public String toString() { 12274 return new String(mChars, mStart, mLength); 12275 } 12276 12277 public CharSequence subSequence(int start, int end) { 12278 if (start < 0 || end < 0 || start > mLength || end > mLength) { 12279 throw new IndexOutOfBoundsException(start + ", " + end); 12280 } 12281 12282 return new String(mChars, start + mStart, end - start); 12283 } 12284 12285 public void getChars(int start, int end, char[] buf, int off) { 12286 if (start < 0 || end < 0 || start > mLength || end > mLength) { 12287 throw new IndexOutOfBoundsException(start + ", " + end); 12288 } 12289 12290 System.arraycopy(mChars, start + mStart, buf, off, end - start); 12291 } 12292 12293 @Override 12294 public void drawText(BaseCanvas c, int start, int end, 12295 float x, float y, Paint p) { 12296 c.drawText(mChars, start + mStart, end - start, x, y, p); 12297 } 12298 12299 @Override 12300 public void drawTextRun(BaseCanvas c, int start, int end, 12301 int contextStart, int contextEnd, float x, float y, boolean isRtl, Paint p) { 12302 int count = end - start; 12303 int contextCount = contextEnd - contextStart; 12304 c.drawTextRun(mChars, start + mStart, count, contextStart + mStart, 12305 contextCount, x, y, isRtl, p); 12306 } 12307 12308 public float measureText(int start, int end, Paint p) { 12309 return p.measureText(mChars, start + mStart, end - start); 12310 } 12311 12312 public int getTextWidths(int start, int end, float[] widths, Paint p) { 12313 return p.getTextWidths(mChars, start + mStart, end - start, widths); 12314 } 12315 12316 public float getTextRunAdvances(int start, int end, int contextStart, 12317 int contextEnd, boolean isRtl, float[] advances, int advancesIndex, 12318 Paint p) { 12319 int count = end - start; 12320 int contextCount = contextEnd - contextStart; 12321 return p.getTextRunAdvances(mChars, start + mStart, count, 12322 contextStart + mStart, contextCount, isRtl, advances, 12323 advancesIndex); 12324 } 12325 12326 public int getTextRunCursor(int contextStart, int contextEnd, int dir, 12327 int offset, int cursorOpt, Paint p) { 12328 int contextCount = contextEnd - contextStart; 12329 return p.getTextRunCursor(mChars, contextStart + mStart, 12330 contextCount, dir, offset + mStart, cursorOpt); 12331 } 12332 } 12333 12334 private static final class Marquee { 12335 // TODO: Add an option to configure this 12336 private static final float MARQUEE_DELTA_MAX = 0.07f; 12337 private static final int MARQUEE_DELAY = 1200; 12338 private static final int MARQUEE_DP_PER_SECOND = 30; 12339 12340 private static final byte MARQUEE_STOPPED = 0x0; 12341 private static final byte MARQUEE_STARTING = 0x1; 12342 private static final byte MARQUEE_RUNNING = 0x2; 12343 12344 private final WeakReference<TextView> mView; 12345 private final Choreographer mChoreographer; 12346 12347 private byte mStatus = MARQUEE_STOPPED; 12348 private final float mPixelsPerMs; 12349 private float mMaxScroll; 12350 private float mMaxFadeScroll; 12351 private float mGhostStart; 12352 private float mGhostOffset; 12353 private float mFadeStop; 12354 private int mRepeatLimit; 12355 12356 private float mScroll; 12357 private long mLastAnimationMs; 12358 12359 Marquee(TextView v) { 12360 final float density = v.getContext().getResources().getDisplayMetrics().density; 12361 mPixelsPerMs = MARQUEE_DP_PER_SECOND * density / 1000f; 12362 mView = new WeakReference<TextView>(v); 12363 mChoreographer = Choreographer.getInstance(); 12364 } 12365 12366 private Choreographer.FrameCallback mTickCallback = new Choreographer.FrameCallback() { 12367 @Override 12368 public void doFrame(long frameTimeNanos) { 12369 tick(); 12370 } 12371 }; 12372 12373 private Choreographer.FrameCallback mStartCallback = new Choreographer.FrameCallback() { 12374 @Override 12375 public void doFrame(long frameTimeNanos) { 12376 mStatus = MARQUEE_RUNNING; 12377 mLastAnimationMs = mChoreographer.getFrameTime(); 12378 tick(); 12379 } 12380 }; 12381 12382 private Choreographer.FrameCallback mRestartCallback = new Choreographer.FrameCallback() { 12383 @Override 12384 public void doFrame(long frameTimeNanos) { 12385 if (mStatus == MARQUEE_RUNNING) { 12386 if (mRepeatLimit >= 0) { 12387 mRepeatLimit--; 12388 } 12389 start(mRepeatLimit); 12390 } 12391 } 12392 }; 12393 12394 void tick() { 12395 if (mStatus != MARQUEE_RUNNING) { 12396 return; 12397 } 12398 12399 mChoreographer.removeFrameCallback(mTickCallback); 12400 12401 final TextView textView = mView.get(); 12402 if (textView != null && (textView.isFocused() || textView.isSelected())) { 12403 long currentMs = mChoreographer.getFrameTime(); 12404 long deltaMs = currentMs - mLastAnimationMs; 12405 mLastAnimationMs = currentMs; 12406 float deltaPx = deltaMs * mPixelsPerMs; 12407 mScroll += deltaPx; 12408 if (mScroll > mMaxScroll) { 12409 mScroll = mMaxScroll; 12410 mChoreographer.postFrameCallbackDelayed(mRestartCallback, MARQUEE_DELAY); 12411 } else { 12412 mChoreographer.postFrameCallback(mTickCallback); 12413 } 12414 textView.invalidate(); 12415 } 12416 } 12417 12418 void stop() { 12419 mStatus = MARQUEE_STOPPED; 12420 mChoreographer.removeFrameCallback(mStartCallback); 12421 mChoreographer.removeFrameCallback(mRestartCallback); 12422 mChoreographer.removeFrameCallback(mTickCallback); 12423 resetScroll(); 12424 } 12425 12426 private void resetScroll() { 12427 mScroll = 0.0f; 12428 final TextView textView = mView.get(); 12429 if (textView != null) textView.invalidate(); 12430 } 12431 12432 void start(int repeatLimit) { 12433 if (repeatLimit == 0) { 12434 stop(); 12435 return; 12436 } 12437 mRepeatLimit = repeatLimit; 12438 final TextView textView = mView.get(); 12439 if (textView != null && textView.mLayout != null) { 12440 mStatus = MARQUEE_STARTING; 12441 mScroll = 0.0f; 12442 final int textWidth = textView.getWidth() - textView.getCompoundPaddingLeft() 12443 - textView.getCompoundPaddingRight(); 12444 final float lineWidth = textView.mLayout.getLineWidth(0); 12445 final float gap = textWidth / 3.0f; 12446 mGhostStart = lineWidth - textWidth + gap; 12447 mMaxScroll = mGhostStart + textWidth; 12448 mGhostOffset = lineWidth + gap; 12449 mFadeStop = lineWidth + textWidth / 6.0f; 12450 mMaxFadeScroll = mGhostStart + lineWidth + lineWidth; 12451 12452 textView.invalidate(); 12453 mChoreographer.postFrameCallback(mStartCallback); 12454 } 12455 } 12456 12457 float getGhostOffset() { 12458 return mGhostOffset; 12459 } 12460 12461 float getScroll() { 12462 return mScroll; 12463 } 12464 12465 float getMaxFadeScroll() { 12466 return mMaxFadeScroll; 12467 } 12468 12469 boolean shouldDrawLeftFade() { 12470 return mScroll <= mFadeStop; 12471 } 12472 12473 boolean shouldDrawGhost() { 12474 return mStatus == MARQUEE_RUNNING && mScroll > mGhostStart; 12475 } 12476 12477 boolean isRunning() { 12478 return mStatus == MARQUEE_RUNNING; 12479 } 12480 12481 boolean isStopped() { 12482 return mStatus == MARQUEE_STOPPED; 12483 } 12484 } 12485 12486 private class ChangeWatcher implements TextWatcher, SpanWatcher { 12487 12488 private CharSequence mBeforeText; 12489 12490 public void beforeTextChanged(CharSequence buffer, int start, 12491 int before, int after) { 12492 if (DEBUG_EXTRACT) { 12493 Log.v(LOG_TAG, "beforeTextChanged start=" + start 12494 + " before=" + before + " after=" + after + ": " + buffer); 12495 } 12496 12497 if (AccessibilityManager.getInstance(mContext).isEnabled() && (mTransformed != null)) { 12498 mBeforeText = mTransformed.toString(); 12499 } 12500 12501 TextView.this.sendBeforeTextChanged(buffer, start, before, after); 12502 } 12503 12504 public void onTextChanged(CharSequence buffer, int start, int before, int after) { 12505 if (DEBUG_EXTRACT) { 12506 Log.v(LOG_TAG, "onTextChanged start=" + start 12507 + " before=" + before + " after=" + after + ": " + buffer); 12508 } 12509 TextView.this.handleTextChanged(buffer, start, before, after); 12510 12511 if (AccessibilityManager.getInstance(mContext).isEnabled() 12512 && (isFocused() || isSelected() && isShown())) { 12513 sendAccessibilityEventTypeViewTextChanged(mBeforeText, start, before, after); 12514 mBeforeText = null; 12515 } 12516 } 12517 12518 public void afterTextChanged(Editable buffer) { 12519 if (DEBUG_EXTRACT) { 12520 Log.v(LOG_TAG, "afterTextChanged: " + buffer); 12521 } 12522 TextView.this.sendAfterTextChanged(buffer); 12523 12524 if (MetaKeyKeyListener.getMetaState(buffer, MetaKeyKeyListener.META_SELECTING) != 0) { 12525 MetaKeyKeyListener.stopSelecting(TextView.this, buffer); 12526 } 12527 } 12528 12529 public void onSpanChanged(Spannable buf, Object what, int s, int e, int st, int en) { 12530 if (DEBUG_EXTRACT) { 12531 Log.v(LOG_TAG, "onSpanChanged s=" + s + " e=" + e 12532 + " st=" + st + " en=" + en + " what=" + what + ": " + buf); 12533 } 12534 TextView.this.spanChange(buf, what, s, st, e, en); 12535 } 12536 12537 public void onSpanAdded(Spannable buf, Object what, int s, int e) { 12538 if (DEBUG_EXTRACT) { 12539 Log.v(LOG_TAG, "onSpanAdded s=" + s + " e=" + e + " what=" + what + ": " + buf); 12540 } 12541 TextView.this.spanChange(buf, what, -1, s, -1, e); 12542 } 12543 12544 public void onSpanRemoved(Spannable buf, Object what, int s, int e) { 12545 if (DEBUG_EXTRACT) { 12546 Log.v(LOG_TAG, "onSpanRemoved s=" + s + " e=" + e + " what=" + what + ": " + buf); 12547 } 12548 TextView.this.spanChange(buf, what, s, -1, e, -1); 12549 } 12550 } 12551 } 12552
