1 /* 2 * Copyright (C) 2011 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 com.android.launcher2; 18 19 import android.animation.AnimatorSet; 20 import android.animation.ObjectAnimator; 21 import android.animation.ValueAnimator; 22 import android.appwidget.AppWidgetHostView; 23 import android.appwidget.AppWidgetManager; 24 import android.appwidget.AppWidgetProviderInfo; 25 import android.content.ComponentName; 26 import android.content.Context; 27 import android.content.Intent; 28 import android.content.pm.PackageManager; 29 import android.content.pm.ResolveInfo; 30 import android.content.res.Configuration; 31 import android.content.res.Resources; 32 import android.content.res.TypedArray; 33 import android.graphics.Bitmap; 34 import android.graphics.Bitmap.Config; 35 import android.graphics.Canvas; 36 import android.graphics.ColorMatrix; 37 import android.graphics.ColorMatrixColorFilter; 38 import android.graphics.Insets; 39 import android.graphics.MaskFilter; 40 import android.graphics.Matrix; 41 import android.graphics.Paint; 42 import android.graphics.PorterDuff; 43 import android.graphics.Rect; 44 import android.graphics.RectF; 45 import android.graphics.Shader; 46 import android.graphics.TableMaskFilter; 47 import android.graphics.drawable.BitmapDrawable; 48 import android.graphics.drawable.Drawable; 49 import android.os.AsyncTask; 50 import android.os.Process; 51 import android.util.AttributeSet; 52 import android.util.Log; 53 import android.view.Gravity; 54 import android.view.KeyEvent; 55 import android.view.LayoutInflater; 56 import android.view.MotionEvent; 57 import android.view.View; 58 import android.view.ViewGroup; 59 import android.view.animation.AccelerateInterpolator; 60 import android.view.animation.DecelerateInterpolator; 61 import android.widget.GridLayout; 62 import android.widget.ImageView; 63 import android.widget.LinearLayout; 64 import android.widget.Toast; 65 66 import com.android.launcher.R; 67 import com.android.launcher2.DropTarget.DragObject; 68 69 import java.util.ArrayList; 70 import java.util.Collections; 71 import java.util.Iterator; 72 import java.util.List; 73 import java.lang.ref.WeakReference; 74 75 /** 76 * A simple callback interface which also provides the results of the task. 77 */ 78 interface AsyncTaskCallback { 79 void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data); 80 } 81 82 /** 83 * The data needed to perform either of the custom AsyncTasks. 84 */ 85 class AsyncTaskPageData { 86 enum Type { 87 LoadWidgetPreviewData 88 } 89 90 AsyncTaskPageData(int p, ArrayList<Object> l, ArrayList<Bitmap> si, AsyncTaskCallback bgR, 91 AsyncTaskCallback postR) { 92 page = p; 93 items = l; 94 sourceImages = si; 95 generatedImages = new ArrayList<Bitmap>(); 96 maxImageWidth = maxImageHeight = -1; 97 doInBackgroundCallback = bgR; 98 postExecuteCallback = postR; 99 } 100 AsyncTaskPageData(int p, ArrayList<Object> l, int cw, int ch, AsyncTaskCallback bgR, 101 AsyncTaskCallback postR) { 102 page = p; 103 items = l; 104 generatedImages = new ArrayList<Bitmap>(); 105 maxImageWidth = cw; 106 maxImageHeight = ch; 107 doInBackgroundCallback = bgR; 108 postExecuteCallback = postR; 109 } 110 void cleanup(boolean cancelled) { 111 // Clean up any references to source/generated bitmaps 112 if (sourceImages != null) { 113 if (cancelled) { 114 for (Bitmap b : sourceImages) { 115 b.recycle(); 116 } 117 } 118 sourceImages.clear(); 119 } 120 if (generatedImages != null) { 121 if (cancelled) { 122 for (Bitmap b : generatedImages) { 123 b.recycle(); 124 } 125 } 126 generatedImages.clear(); 127 } 128 } 129 int page; 130 ArrayList<Object> items; 131 ArrayList<Bitmap> sourceImages; 132 ArrayList<Bitmap> generatedImages; 133 int maxImageWidth; 134 int maxImageHeight; 135 AsyncTaskCallback doInBackgroundCallback; 136 AsyncTaskCallback postExecuteCallback; 137 } 138 139 /** 140 * A generic template for an async task used in AppsCustomize. 141 */ 142 class AppsCustomizeAsyncTask extends AsyncTask<AsyncTaskPageData, Void, AsyncTaskPageData> { 143 AppsCustomizeAsyncTask(int p, AsyncTaskPageData.Type ty) { 144 page = p; 145 threadPriority = Process.THREAD_PRIORITY_DEFAULT; 146 dataType = ty; 147 } 148 @Override 149 protected AsyncTaskPageData doInBackground(AsyncTaskPageData... params) { 150 if (params.length != 1) return null; 151 // Load each of the widget previews in the background 152 params[0].doInBackgroundCallback.run(this, params[0]); 153 return params[0]; 154 } 155 @Override 156 protected void onPostExecute(AsyncTaskPageData result) { 157 // All the widget previews are loaded, so we can just callback to inflate the page 158 result.postExecuteCallback.run(this, result); 159 } 160 161 void setThreadPriority(int p) { 162 threadPriority = p; 163 } 164 void syncThreadPriority() { 165 Process.setThreadPriority(threadPriority); 166 } 167 168 // The page that this async task is associated with 169 AsyncTaskPageData.Type dataType; 170 int page; 171 int threadPriority; 172 } 173 174 abstract class WeakReferenceThreadLocal<T> { 175 private ThreadLocal<WeakReference<T>> mThreadLocal; 176 public WeakReferenceThreadLocal() { 177 mThreadLocal = new ThreadLocal<WeakReference<T>>(); 178 } 179 180 abstract T initialValue(); 181 182 public void set(T t) { 183 mThreadLocal.set(new WeakReference<T>(t)); 184 } 185 186 public T get() { 187 WeakReference<T> reference = mThreadLocal.get(); 188 T obj; 189 if (reference == null) { 190 obj = initialValue(); 191 mThreadLocal.set(new WeakReference<T>(obj)); 192 return obj; 193 } else { 194 obj = reference.get(); 195 if (obj == null) { 196 obj = initialValue(); 197 mThreadLocal.set(new WeakReference<T>(obj)); 198 } 199 return obj; 200 } 201 } 202 } 203 204 class CanvasCache extends WeakReferenceThreadLocal<Canvas> { 205 @Override 206 protected Canvas initialValue() { 207 return new Canvas(); 208 } 209 } 210 211 class PaintCache extends WeakReferenceThreadLocal<Paint> { 212 @Override 213 protected Paint initialValue() { 214 return null; 215 } 216 } 217 218 class BitmapCache extends WeakReferenceThreadLocal<Bitmap> { 219 @Override 220 protected Bitmap initialValue() { 221 return null; 222 } 223 } 224 225 class RectCache extends WeakReferenceThreadLocal<Rect> { 226 @Override 227 protected Rect initialValue() { 228 return new Rect(); 229 } 230 } 231 232 /** 233 * The Apps/Customize page that displays all the applications, widgets, and shortcuts. 234 */ 235 public class AppsCustomizePagedView extends PagedViewWithDraggableItems implements 236 AllAppsView, View.OnClickListener, View.OnKeyListener, DragSource, 237 PagedViewIcon.PressedCallback, PagedViewWidget.ShortPressListener, 238 LauncherTransitionable { 239 static final String TAG = "AppsCustomizePagedView"; 240 241 /** 242 * The different content types that this paged view can show. 243 */ 244 public enum ContentType { 245 Applications, 246 Widgets 247 } 248 249 // Refs 250 private Launcher mLauncher; 251 private DragController mDragController; 252 private final LayoutInflater mLayoutInflater; 253 private final PackageManager mPackageManager; 254 255 // Save and Restore 256 private int mSaveInstanceStateItemIndex = -1; 257 private PagedViewIcon mPressedIcon; 258 259 // Content 260 private ArrayList<ApplicationInfo> mApps; 261 private ArrayList<Object> mWidgets; 262 263 // Cling 264 private boolean mHasShownAllAppsCling; 265 private int mClingFocusedX; 266 private int mClingFocusedY; 267 268 // Caching 269 private Canvas mCanvas; 270 private Drawable mDefaultWidgetBackground; 271 private IconCache mIconCache; 272 273 // Dimens 274 private int mContentWidth; 275 private int mAppIconSize; 276 private int mMaxAppCellCountX, mMaxAppCellCountY; 277 private int mWidgetCountX, mWidgetCountY; 278 private int mWidgetWidthGap, mWidgetHeightGap; 279 private final float sWidgetPreviewIconPaddingPercentage = 0.25f; 280 private PagedViewCellLayout mWidgetSpacingLayout; 281 private int mNumAppsPages; 282 private int mNumWidgetPages; 283 284 // Relating to the scroll and overscroll effects 285 Workspace.ZInterpolator mZInterpolator = new Workspace.ZInterpolator(0.5f); 286 private static float CAMERA_DISTANCE = 6500; 287 private static float TRANSITION_SCALE_FACTOR = 0.74f; 288 private static float TRANSITION_PIVOT = 0.65f; 289 private static float TRANSITION_MAX_ROTATION = 22; 290 private static final boolean PERFORM_OVERSCROLL_ROTATION = true; 291 private AccelerateInterpolator mAlphaInterpolator = new AccelerateInterpolator(0.9f); 292 private DecelerateInterpolator mLeftScreenAlphaInterpolator = new DecelerateInterpolator(4); 293 294 // Previews & outlines 295 ArrayList<AppsCustomizeAsyncTask> mRunningTasks; 296 private static final int sPageSleepDelay = 200; 297 298 private Runnable mInflateWidgetRunnable = null; 299 private Runnable mBindWidgetRunnable = null; 300 static final int WIDGET_NO_CLEANUP_REQUIRED = -1; 301 static final int WIDGET_PRELOAD_PENDING = 0; 302 static final int WIDGET_BOUND = 1; 303 static final int WIDGET_INFLATED = 2; 304 int mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 305 int mWidgetLoadingId = -1; 306 PendingAddWidgetInfo mCreateWidgetInfo = null; 307 private boolean mDraggingWidget = false; 308 309 // Deferral of loading widget previews during launcher transitions 310 private boolean mInTransition; 311 private ArrayList<AsyncTaskPageData> mDeferredSyncWidgetPageItems = 312 new ArrayList<AsyncTaskPageData>(); 313 private ArrayList<Runnable> mDeferredPrepareLoadWidgetPreviewsTasks = 314 new ArrayList<Runnable>(); 315 316 // Used for drawing shortcut previews 317 BitmapCache mCachedShortcutPreviewBitmap = new BitmapCache(); 318 PaintCache mCachedShortcutPreviewPaint = new PaintCache(); 319 CanvasCache mCachedShortcutPreviewCanvas = new CanvasCache(); 320 321 // Used for drawing widget previews 322 CanvasCache mCachedAppWidgetPreviewCanvas = new CanvasCache(); 323 RectCache mCachedAppWidgetPreviewSrcRect = new RectCache(); 324 RectCache mCachedAppWidgetPreviewDestRect = new RectCache(); 325 PaintCache mCachedAppWidgetPreviewPaint = new PaintCache(); 326 327 public AppsCustomizePagedView(Context context, AttributeSet attrs) { 328 super(context, attrs); 329 mLayoutInflater = LayoutInflater.from(context); 330 mPackageManager = context.getPackageManager(); 331 mApps = new ArrayList<ApplicationInfo>(); 332 mWidgets = new ArrayList<Object>(); 333 mIconCache = ((LauncherApplication) context.getApplicationContext()).getIconCache(); 334 mCanvas = new Canvas(); 335 mRunningTasks = new ArrayList<AppsCustomizeAsyncTask>(); 336 337 // Save the default widget preview background 338 Resources resources = context.getResources(); 339 mDefaultWidgetBackground = resources.getDrawable(R.drawable.default_widget_preview_holo); 340 mAppIconSize = resources.getDimensionPixelSize(R.dimen.app_icon_size); 341 342 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.AppsCustomizePagedView, 0, 0); 343 mMaxAppCellCountX = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountX, -1); 344 mMaxAppCellCountY = a.getInt(R.styleable.AppsCustomizePagedView_maxAppCellCountY, -1); 345 mWidgetWidthGap = 346 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellWidthGap, 0); 347 mWidgetHeightGap = 348 a.getDimensionPixelSize(R.styleable.AppsCustomizePagedView_widgetCellHeightGap, 0); 349 mWidgetCountX = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountX, 2); 350 mWidgetCountY = a.getInt(R.styleable.AppsCustomizePagedView_widgetCountY, 2); 351 mClingFocusedX = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedX, 0); 352 mClingFocusedY = a.getInt(R.styleable.AppsCustomizePagedView_clingFocusedY, 0); 353 a.recycle(); 354 mWidgetSpacingLayout = new PagedViewCellLayout(getContext()); 355 356 // The padding on the non-matched dimension for the default widget preview icons 357 // (top + bottom) 358 mFadeInAdjacentScreens = false; 359 360 // Unless otherwise specified this view is important for accessibility. 361 if (getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 362 setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 363 } 364 } 365 366 @Override 367 protected void init() { 368 super.init(); 369 mCenterPagesVertically = false; 370 371 Context context = getContext(); 372 Resources r = context.getResources(); 373 setDragSlopeThreshold(r.getInteger(R.integer.config_appsCustomizeDragSlopeThreshold)/100f); 374 } 375 376 @Override 377 protected void onUnhandledTap(MotionEvent ev) { 378 if (LauncherApplication.isScreenLarge()) { 379 // Dismiss AppsCustomize if we tap 380 mLauncher.showWorkspace(true); 381 } 382 } 383 384 /** Returns the item index of the center item on this page so that we can restore to this 385 * item index when we rotate. */ 386 private int getMiddleComponentIndexOnCurrentPage() { 387 int i = -1; 388 if (getPageCount() > 0) { 389 int currentPage = getCurrentPage(); 390 if (currentPage < mNumAppsPages) { 391 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(currentPage); 392 PagedViewCellLayoutChildren childrenLayout = layout.getChildrenLayout(); 393 int numItemsPerPage = mCellCountX * mCellCountY; 394 int childCount = childrenLayout.getChildCount(); 395 if (childCount > 0) { 396 i = (currentPage * numItemsPerPage) + (childCount / 2); 397 } 398 } else { 399 int numApps = mApps.size(); 400 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(currentPage); 401 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 402 int childCount = layout.getChildCount(); 403 if (childCount > 0) { 404 i = numApps + 405 ((currentPage - mNumAppsPages) * numItemsPerPage) + (childCount / 2); 406 } 407 } 408 } 409 return i; 410 } 411 412 /** Get the index of the item to restore to if we need to restore the current page. */ 413 int getSaveInstanceStateIndex() { 414 if (mSaveInstanceStateItemIndex == -1) { 415 mSaveInstanceStateItemIndex = getMiddleComponentIndexOnCurrentPage(); 416 } 417 return mSaveInstanceStateItemIndex; 418 } 419 420 /** Returns the page in the current orientation which is expected to contain the specified 421 * item index. */ 422 int getPageForComponent(int index) { 423 if (index < 0) return 0; 424 425 if (index < mApps.size()) { 426 int numItemsPerPage = mCellCountX * mCellCountY; 427 return (index / numItemsPerPage); 428 } else { 429 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 430 return mNumAppsPages + ((index - mApps.size()) / numItemsPerPage); 431 } 432 } 433 434 /** Restores the page for an item at the specified index */ 435 void restorePageForIndex(int index) { 436 if (index < 0) return; 437 mSaveInstanceStateItemIndex = index; 438 } 439 440 private void updatePageCounts() { 441 mNumWidgetPages = (int) Math.ceil(mWidgets.size() / 442 (float) (mWidgetCountX * mWidgetCountY)); 443 mNumAppsPages = (int) Math.ceil((float) mApps.size() / (mCellCountX * mCellCountY)); 444 } 445 446 protected void onDataReady(int width, int height) { 447 // Note that we transpose the counts in portrait so that we get a similar layout 448 boolean isLandscape = getResources().getConfiguration().orientation == 449 Configuration.ORIENTATION_LANDSCAPE; 450 int maxCellCountX = Integer.MAX_VALUE; 451 int maxCellCountY = Integer.MAX_VALUE; 452 if (LauncherApplication.isScreenLarge()) { 453 maxCellCountX = (isLandscape ? LauncherModel.getCellCountX() : 454 LauncherModel.getCellCountY()); 455 maxCellCountY = (isLandscape ? LauncherModel.getCellCountY() : 456 LauncherModel.getCellCountX()); 457 } 458 if (mMaxAppCellCountX > -1) { 459 maxCellCountX = Math.min(maxCellCountX, mMaxAppCellCountX); 460 } 461 if (mMaxAppCellCountY > -1) { 462 maxCellCountY = Math.min(maxCellCountY, mMaxAppCellCountY); 463 } 464 465 // Now that the data is ready, we can calculate the content width, the number of cells to 466 // use for each page 467 mWidgetSpacingLayout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 468 mWidgetSpacingLayout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 469 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 470 mWidgetSpacingLayout.calculateCellCount(width, height, maxCellCountX, maxCellCountY); 471 mCellCountX = mWidgetSpacingLayout.getCellCountX(); 472 mCellCountY = mWidgetSpacingLayout.getCellCountY(); 473 updatePageCounts(); 474 475 // Force a measure to update recalculate the gaps 476 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 477 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 478 mWidgetSpacingLayout.measure(widthSpec, heightSpec); 479 mContentWidth = mWidgetSpacingLayout.getContentWidth(); 480 481 AppsCustomizeTabHost host = (AppsCustomizeTabHost) getTabHost(); 482 final boolean hostIsTransitioning = host.isTransitioning(); 483 484 // Restore the page 485 int page = getPageForComponent(mSaveInstanceStateItemIndex); 486 invalidatePageData(Math.max(0, page), hostIsTransitioning); 487 488 // Show All Apps cling if we are finished transitioning, otherwise, we will try again when 489 // the transition completes in AppsCustomizeTabHost (otherwise the wrong offsets will be 490 // returned while animating) 491 if (!hostIsTransitioning) { 492 post(new Runnable() { 493 @Override 494 public void run() { 495 showAllAppsCling(); 496 } 497 }); 498 } 499 } 500 501 void showAllAppsCling() { 502 if (!mHasShownAllAppsCling && isDataReady()) { 503 mHasShownAllAppsCling = true; 504 // Calculate the position for the cling punch through 505 int[] offset = new int[2]; 506 int[] pos = mWidgetSpacingLayout.estimateCellPosition(mClingFocusedX, mClingFocusedY); 507 mLauncher.getDragLayer().getLocationInDragLayer(this, offset); 508 // PagedViews are centered horizontally but top aligned 509 pos[0] += (getMeasuredWidth() - mWidgetSpacingLayout.getMeasuredWidth()) / 2 + 510 offset[0]; 511 pos[1] += offset[1]; 512 mLauncher.showFirstRunAllAppsCling(pos); 513 } 514 } 515 516 @Override 517 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 518 int width = MeasureSpec.getSize(widthMeasureSpec); 519 int height = MeasureSpec.getSize(heightMeasureSpec); 520 if (!isDataReady()) { 521 if (!mApps.isEmpty() && !mWidgets.isEmpty()) { 522 setDataIsReady(); 523 setMeasuredDimension(width, height); 524 onDataReady(width, height); 525 } 526 } 527 528 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 529 } 530 531 public void onPackagesUpdated(boolean immediate) { 532 if (immediate) { 533 updatePackages(); 534 } else { 535 // TODO: this isn't ideal, but we actually need to delay here. This call is triggered 536 // by a broadcast receiver, and in order for it to work correctly, we need to know that 537 // the AppWidgetService has already received and processed the same broadcast. Since there 538 // is no guarantee about ordering of broadcast receipt, we just delay here. This is a 539 // workaround until we add a callback from AppWidgetService to AppWidgetHost when widget 540 // packages are added, updated or removed. 541 postDelayed(new Runnable() { 542 public void run() { 543 updatePackages(); 544 } 545 }, 1500); 546 } 547 } 548 549 public void updatePackages() { 550 // Get the list of widgets and shortcuts 551 mWidgets.clear(); 552 List<AppWidgetProviderInfo> widgets = 553 AppWidgetManager.getInstance(mLauncher).getInstalledProviders(); 554 Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT); 555 List<ResolveInfo> shortcuts = mPackageManager.queryIntentActivities(shortcutsIntent, 0); 556 for (AppWidgetProviderInfo widget : widgets) { 557 if (widget.minWidth > 0 && widget.minHeight > 0) { 558 // Ensure that all widgets we show can be added on a workspace of this size 559 int[] spanXY = Launcher.getSpanForWidget(mLauncher, widget); 560 int[] minSpanXY = Launcher.getMinSpanForWidget(mLauncher, widget); 561 int minSpanX = Math.min(spanXY[0], minSpanXY[0]); 562 int minSpanY = Math.min(spanXY[1], minSpanXY[1]); 563 if (minSpanX <= LauncherModel.getCellCountX() && 564 minSpanY <= LauncherModel.getCellCountY()) { 565 mWidgets.add(widget); 566 } else { 567 Log.e(TAG, "Widget " + widget.provider + " can not fit on this device (" + 568 widget.minWidth + ", " + widget.minHeight + ")"); 569 } 570 } else { 571 Log.e(TAG, "Widget " + widget.provider + " has invalid dimensions (" + 572 widget.minWidth + ", " + widget.minHeight + ")"); 573 } 574 } 575 mWidgets.addAll(shortcuts); 576 Collections.sort(mWidgets, 577 new LauncherModel.WidgetAndShortcutNameComparator(mPackageManager)); 578 updatePageCounts(); 579 invalidateOnDataChange(); 580 } 581 582 @Override 583 public void onClick(View v) { 584 // When we have exited all apps or are in transition, disregard clicks 585 if (!mLauncher.isAllAppsVisible() || 586 mLauncher.getWorkspace().isSwitchingState()) return; 587 588 if (v instanceof PagedViewIcon) { 589 // Animate some feedback to the click 590 final ApplicationInfo appInfo = (ApplicationInfo) v.getTag(); 591 592 // Lock the drawable state to pressed until we return to Launcher 593 if (mPressedIcon != null) { 594 mPressedIcon.lockDrawableState(); 595 } 596 597 // NOTE: We want all transitions from launcher to act as if the wallpaper were enabled 598 // to be consistent. So re-enable the flag here, and we will re-disable it as necessary 599 // when Launcher resumes and we are still in AllApps. 600 mLauncher.updateWallpaperVisibility(true); 601 mLauncher.startActivitySafely(v, appInfo.intent, appInfo); 602 603 } else if (v instanceof PagedViewWidget) { 604 // Let the user know that they have to long press to add a widget 605 Toast.makeText(getContext(), R.string.long_press_widget_to_add, 606 Toast.LENGTH_SHORT).show(); 607 608 // Create a little animation to show that the widget can move 609 float offsetY = getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 610 final ImageView p = (ImageView) v.findViewById(R.id.widget_preview); 611 AnimatorSet bounce = new AnimatorSet(); 612 ValueAnimator tyuAnim = ObjectAnimator.ofFloat(p, "translationY", offsetY); 613 tyuAnim.setDuration(125); 614 ValueAnimator tydAnim = ObjectAnimator.ofFloat(p, "translationY", 0f); 615 tydAnim.setDuration(100); 616 bounce.play(tyuAnim).before(tydAnim); 617 bounce.setInterpolator(new AccelerateInterpolator()); 618 bounce.start(); 619 } 620 } 621 622 public boolean onKey(View v, int keyCode, KeyEvent event) { 623 return FocusHelper.handleAppsCustomizeKeyEvent(v, keyCode, event); 624 } 625 626 /* 627 * PagedViewWithDraggableItems implementation 628 */ 629 @Override 630 protected void determineDraggingStart(android.view.MotionEvent ev) { 631 // Disable dragging by pulling an app down for now. 632 } 633 634 private void beginDraggingApplication(View v) { 635 mLauncher.getWorkspace().onDragStartedWithItem(v); 636 mLauncher.getWorkspace().beginDragShared(v, this); 637 } 638 639 private void preloadWidget(final PendingAddWidgetInfo info) { 640 final AppWidgetProviderInfo pInfo = info.info; 641 if (pInfo.configure != null) { 642 return; 643 } 644 645 mWidgetCleanupState = WIDGET_PRELOAD_PENDING; 646 mBindWidgetRunnable = new Runnable() { 647 @Override 648 public void run() { 649 mWidgetLoadingId = mLauncher.getAppWidgetHost().allocateAppWidgetId(); 650 if (AppWidgetManager.getInstance(mLauncher) 651 .bindAppWidgetIdIfAllowed(mWidgetLoadingId, info.componentName)) { 652 mWidgetCleanupState = WIDGET_BOUND; 653 } 654 } 655 }; 656 post(mBindWidgetRunnable); 657 658 mInflateWidgetRunnable = new Runnable() { 659 @Override 660 public void run() { 661 AppWidgetHostView hostView = mLauncher. 662 getAppWidgetHost().createView(getContext(), mWidgetLoadingId, pInfo); 663 info.boundWidget = hostView; 664 mWidgetCleanupState = WIDGET_INFLATED; 665 hostView.setVisibility(INVISIBLE); 666 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(info.spanX, 667 info.spanY, info, false); 668 669 // We want the first widget layout to be the correct size. This will be important 670 // for width size reporting to the AppWidgetManager. 671 DragLayer.LayoutParams lp = new DragLayer.LayoutParams(unScaledSize[0], 672 unScaledSize[1]); 673 lp.x = lp.y = 0; 674 lp.customPosition = true; 675 hostView.setLayoutParams(lp); 676 mLauncher.getDragLayer().addView(hostView); 677 } 678 }; 679 post(mInflateWidgetRunnable); 680 } 681 682 @Override 683 public void onShortPress(View v) { 684 // We are anticipating a long press, and we use this time to load bind and instantiate 685 // the widget. This will need to be cleaned up if it turns out no long press occurs. 686 if (mCreateWidgetInfo != null) { 687 // Just in case the cleanup process wasn't properly executed. This shouldn't happen. 688 cleanupWidgetPreloading(false); 689 } 690 mCreateWidgetInfo = new PendingAddWidgetInfo((PendingAddWidgetInfo) v.getTag()); 691 preloadWidget(mCreateWidgetInfo); 692 } 693 694 private void cleanupWidgetPreloading(boolean widgetWasAdded) { 695 if (!widgetWasAdded) { 696 // If the widget was not added, we may need to do further cleanup. 697 PendingAddWidgetInfo info = mCreateWidgetInfo; 698 mCreateWidgetInfo = null; 699 700 if (mWidgetCleanupState == WIDGET_PRELOAD_PENDING) { 701 // We never did any preloading, so just remove pending callbacks to do so 702 removeCallbacks(mBindWidgetRunnable); 703 removeCallbacks(mInflateWidgetRunnable); 704 } else if (mWidgetCleanupState == WIDGET_BOUND) { 705 // Delete the widget id which was allocated 706 if (mWidgetLoadingId != -1) { 707 mLauncher.getAppWidgetHost().deleteAppWidgetId(mWidgetLoadingId); 708 } 709 710 // We never got around to inflating the widget, so remove the callback to do so. 711 removeCallbacks(mInflateWidgetRunnable); 712 } else if (mWidgetCleanupState == WIDGET_INFLATED) { 713 // Delete the widget id which was allocated 714 if (mWidgetLoadingId != -1) { 715 mLauncher.getAppWidgetHost().deleteAppWidgetId(mWidgetLoadingId); 716 } 717 718 // The widget was inflated and added to the DragLayer -- remove it. 719 AppWidgetHostView widget = info.boundWidget; 720 mLauncher.getDragLayer().removeView(widget); 721 } 722 } 723 mWidgetCleanupState = WIDGET_NO_CLEANUP_REQUIRED; 724 mWidgetLoadingId = -1; 725 mCreateWidgetInfo = null; 726 PagedViewWidget.resetShortPressTarget(); 727 } 728 729 @Override 730 public void cleanUpShortPress(View v) { 731 if (!mDraggingWidget) { 732 cleanupWidgetPreloading(false); 733 } 734 } 735 736 private boolean beginDraggingWidget(View v) { 737 mDraggingWidget = true; 738 // Get the widget preview as the drag representation 739 ImageView image = (ImageView) v.findViewById(R.id.widget_preview); 740 PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag(); 741 742 // If the ImageView doesn't have a drawable yet, the widget preview hasn't been loaded and 743 // we abort the drag. 744 if (image.getDrawable() == null) { 745 mDraggingWidget = false; 746 return false; 747 } 748 749 // Compose the drag image 750 Bitmap preview; 751 Bitmap outline; 752 float scale = 1f; 753 if (createItemInfo instanceof PendingAddWidgetInfo) { 754 // This can happen in some weird cases involving multi-touch. We can't start dragging 755 // the widget if this is null, so we break out. 756 if (mCreateWidgetInfo == null) { 757 return false; 758 } 759 760 PendingAddWidgetInfo createWidgetInfo = mCreateWidgetInfo; 761 createItemInfo = createWidgetInfo; 762 int spanX = createItemInfo.spanX; 763 int spanY = createItemInfo.spanY; 764 int[] size = mLauncher.getWorkspace().estimateItemSize(spanX, spanY, 765 createWidgetInfo, true); 766 767 FastBitmapDrawable previewDrawable = (FastBitmapDrawable) image.getDrawable(); 768 float minScale = 1.25f; 769 int maxWidth, maxHeight; 770 maxWidth = Math.min((int) (previewDrawable.getIntrinsicWidth() * minScale), size[0]); 771 maxHeight = Math.min((int) (previewDrawable.getIntrinsicHeight() * minScale), size[1]); 772 preview = getWidgetPreview(createWidgetInfo.componentName, createWidgetInfo.previewImage, 773 createWidgetInfo.icon, spanX, spanY, maxWidth, maxHeight); 774 775 // Determine the image view drawable scale relative to the preview 776 float[] mv = new float[9]; 777 Matrix m = new Matrix(); 778 m.setRectToRect( 779 new RectF(0f, 0f, (float) preview.getWidth(), (float) preview.getHeight()), 780 new RectF(0f, 0f, (float) previewDrawable.getIntrinsicWidth(), 781 (float) previewDrawable.getIntrinsicHeight()), 782 Matrix.ScaleToFit.START); 783 m.getValues(mv); 784 scale = (float) mv[0]; 785 } else { 786 PendingAddShortcutInfo createShortcutInfo = (PendingAddShortcutInfo) v.getTag(); 787 Drawable icon = mIconCache.getFullResIcon(createShortcutInfo.shortcutActivityInfo); 788 preview = Bitmap.createBitmap(icon.getIntrinsicWidth(), 789 icon.getIntrinsicHeight(), Bitmap.Config.ARGB_8888); 790 791 mCanvas.setBitmap(preview); 792 mCanvas.save(); 793 renderDrawableToBitmap(icon, preview, 0, 0, 794 icon.getIntrinsicWidth(), icon.getIntrinsicHeight()); 795 mCanvas.restore(); 796 mCanvas.setBitmap(null); 797 createItemInfo.spanX = createItemInfo.spanY = 1; 798 } 799 800 // We use a custom alpha clip table for the default widget previews 801 Paint alphaClipPaint = null; 802 if (createItemInfo instanceof PendingAddWidgetInfo) { 803 if (((PendingAddWidgetInfo) createItemInfo).previewImage != 0) { 804 MaskFilter alphaClipTable = TableMaskFilter.CreateClipTable(0, 255); 805 alphaClipPaint = new Paint(); 806 alphaClipPaint.setMaskFilter(alphaClipTable); 807 } 808 } 809 810 // Save the preview for the outline generation, then dim the preview 811 outline = Bitmap.createScaledBitmap(preview, preview.getWidth(), preview.getHeight(), 812 false); 813 814 // Start the drag 815 alphaClipPaint = null; 816 mLauncher.lockScreenOrientation(); 817 mLauncher.getWorkspace().onDragStartedWithItem(createItemInfo, outline, alphaClipPaint); 818 mDragController.startDrag(image, preview, this, createItemInfo, 819 DragController.DRAG_ACTION_COPY, null, scale); 820 outline.recycle(); 821 preview.recycle(); 822 return true; 823 } 824 825 @Override 826 protected boolean beginDragging(final View v) { 827 if (!super.beginDragging(v)) return false; 828 829 if (v instanceof PagedViewIcon) { 830 beginDraggingApplication(v); 831 } else if (v instanceof PagedViewWidget) { 832 if (!beginDraggingWidget(v)) { 833 return false; 834 } 835 } 836 837 // We delay entering spring-loaded mode slightly to make sure the UI 838 // thready is free of any work. 839 postDelayed(new Runnable() { 840 @Override 841 public void run() { 842 // We don't enter spring-loaded mode if the drag has been cancelled 843 if (mLauncher.getDragController().isDragging()) { 844 // Dismiss the cling 845 mLauncher.dismissAllAppsCling(null); 846 847 // Reset the alpha on the dragged icon before we drag 848 resetDrawableState(); 849 850 // Go into spring loaded mode (must happen before we startDrag()) 851 mLauncher.enterSpringLoadedDragMode(); 852 } 853 } 854 }, 150); 855 856 return true; 857 } 858 859 /** 860 * Clean up after dragging. 861 * 862 * @param target where the item was dragged to (can be null if the item was flung) 863 */ 864 private void endDragging(View target, boolean isFlingToDelete, boolean success) { 865 if (isFlingToDelete || !success || (target != mLauncher.getWorkspace() && 866 !(target instanceof DeleteDropTarget))) { 867 // Exit spring loaded mode if we have not successfully dropped or have not handled the 868 // drop in Workspace 869 mLauncher.exitSpringLoadedDragMode(); 870 } 871 mLauncher.unlockScreenOrientation(false); 872 } 873 874 @Override 875 public View getContent() { 876 return null; 877 } 878 879 @Override 880 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 881 mInTransition = true; 882 if (toWorkspace) { 883 cancelAllTasks(); 884 } 885 } 886 887 @Override 888 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 889 } 890 891 @Override 892 public void onLauncherTransitionStep(Launcher l, float t) { 893 } 894 895 @Override 896 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 897 mInTransition = false; 898 for (AsyncTaskPageData d : mDeferredSyncWidgetPageItems) { 899 onSyncWidgetPageItems(d); 900 } 901 mDeferredSyncWidgetPageItems.clear(); 902 for (Runnable r : mDeferredPrepareLoadWidgetPreviewsTasks) { 903 r.run(); 904 } 905 mDeferredPrepareLoadWidgetPreviewsTasks.clear(); 906 mForceDrawAllChildrenNextFrame = !toWorkspace; 907 } 908 909 @Override 910 public void onDropCompleted(View target, DragObject d, boolean isFlingToDelete, 911 boolean success) { 912 // Return early and wait for onFlingToDeleteCompleted if this was the result of a fling 913 if (isFlingToDelete) return; 914 915 endDragging(target, false, success); 916 917 // Display an error message if the drag failed due to there not being enough space on the 918 // target layout we were dropping on. 919 if (!success) { 920 boolean showOutOfSpaceMessage = false; 921 if (target instanceof Workspace) { 922 int currentScreen = mLauncher.getCurrentWorkspaceScreen(); 923 Workspace workspace = (Workspace) target; 924 CellLayout layout = (CellLayout) workspace.getChildAt(currentScreen); 925 ItemInfo itemInfo = (ItemInfo) d.dragInfo; 926 if (layout != null) { 927 layout.calculateSpans(itemInfo); 928 showOutOfSpaceMessage = 929 !layout.findCellForSpan(null, itemInfo.spanX, itemInfo.spanY); 930 } 931 } 932 if (showOutOfSpaceMessage) { 933 mLauncher.showOutOfSpaceMessage(false); 934 } 935 936 d.deferDragViewCleanupPostAnimation = false; 937 } 938 cleanupWidgetPreloading(success); 939 mDraggingWidget = false; 940 } 941 942 @Override 943 public void onFlingToDeleteCompleted() { 944 // We just dismiss the drag when we fling, so cleanup here 945 endDragging(null, true, true); 946 cleanupWidgetPreloading(false); 947 mDraggingWidget = false; 948 } 949 950 @Override 951 public boolean supportsFlingToDelete() { 952 return true; 953 } 954 955 @Override 956 protected void onDetachedFromWindow() { 957 super.onDetachedFromWindow(); 958 cancelAllTasks(); 959 } 960 961 public void clearAllWidgetPages() { 962 cancelAllTasks(); 963 int count = getChildCount(); 964 for (int i = 0; i < count; i++) { 965 View v = getPageAt(i); 966 if (v instanceof PagedViewGridLayout) { 967 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 968 mDirtyPageContent.set(i, true); 969 } 970 } 971 } 972 973 private void cancelAllTasks() { 974 // Clean up all the async tasks 975 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 976 while (iter.hasNext()) { 977 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 978 task.cancel(false); 979 iter.remove(); 980 mDirtyPageContent.set(task.page, true); 981 982 // We've already preallocated the views for the data to load into, so clear them as well 983 View v = getPageAt(task.page); 984 if (v instanceof PagedViewGridLayout) { 985 ((PagedViewGridLayout) v).removeAllViewsOnPage(); 986 } 987 } 988 mDeferredSyncWidgetPageItems.clear(); 989 mDeferredPrepareLoadWidgetPreviewsTasks.clear(); 990 } 991 992 public void setContentType(ContentType type) { 993 if (type == ContentType.Widgets) { 994 invalidatePageData(mNumAppsPages, true); 995 } else if (type == ContentType.Applications) { 996 invalidatePageData(0, true); 997 } 998 } 999 1000 protected void snapToPage(int whichPage, int delta, int duration) { 1001 super.snapToPage(whichPage, delta, duration); 1002 updateCurrentTab(whichPage); 1003 1004 // Update the thread priorities given the direction lookahead 1005 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1006 while (iter.hasNext()) { 1007 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1008 int pageIndex = task.page; 1009 if ((mNextPage > mCurrentPage && pageIndex >= mCurrentPage) || 1010 (mNextPage < mCurrentPage && pageIndex <= mCurrentPage)) { 1011 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1012 } else { 1013 task.setThreadPriority(Process.THREAD_PRIORITY_LOWEST); 1014 } 1015 } 1016 } 1017 1018 private void updateCurrentTab(int currentPage) { 1019 AppsCustomizeTabHost tabHost = getTabHost(); 1020 if (tabHost != null) { 1021 String tag = tabHost.getCurrentTabTag(); 1022 if (tag != null) { 1023 if (currentPage >= mNumAppsPages && 1024 !tag.equals(tabHost.getTabTagForContentType(ContentType.Widgets))) { 1025 tabHost.setCurrentTabFromContent(ContentType.Widgets); 1026 } else if (currentPage < mNumAppsPages && 1027 !tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1028 tabHost.setCurrentTabFromContent(ContentType.Applications); 1029 } 1030 } 1031 } 1032 } 1033 1034 /* 1035 * Apps PagedView implementation 1036 */ 1037 private void setVisibilityOnChildren(ViewGroup layout, int visibility) { 1038 int childCount = layout.getChildCount(); 1039 for (int i = 0; i < childCount; ++i) { 1040 layout.getChildAt(i).setVisibility(visibility); 1041 } 1042 } 1043 private void setupPage(PagedViewCellLayout layout) { 1044 layout.setCellCount(mCellCountX, mCellCountY); 1045 layout.setGap(mPageLayoutWidthGap, mPageLayoutHeightGap); 1046 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 1047 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 1048 1049 // Note: We force a measure here to get around the fact that when we do layout calculations 1050 // immediately after syncing, we don't have a proper width. That said, we already know the 1051 // expected page width, so we can actually optimize by hiding all the TextView-based 1052 // children that are expensive to measure, and let that happen naturally later. 1053 setVisibilityOnChildren(layout, View.GONE); 1054 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 1055 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 1056 layout.setMinimumWidth(getPageContentWidth()); 1057 layout.measure(widthSpec, heightSpec); 1058 setVisibilityOnChildren(layout, View.VISIBLE); 1059 } 1060 1061 public void syncAppsPageItems(int page, boolean immediate) { 1062 // ensure that we have the right number of items on the pages 1063 int numCells = mCellCountX * mCellCountY; 1064 int startIndex = page * numCells; 1065 int endIndex = Math.min(startIndex + numCells, mApps.size()); 1066 PagedViewCellLayout layout = (PagedViewCellLayout) getPageAt(page); 1067 1068 layout.removeAllViewsOnPage(); 1069 ArrayList<Object> items = new ArrayList<Object>(); 1070 ArrayList<Bitmap> images = new ArrayList<Bitmap>(); 1071 for (int i = startIndex; i < endIndex; ++i) { 1072 ApplicationInfo info = mApps.get(i); 1073 PagedViewIcon icon = (PagedViewIcon) mLayoutInflater.inflate( 1074 R.layout.apps_customize_application, layout, false); 1075 icon.applyFromApplicationInfo(info, true, this); 1076 icon.setOnClickListener(this); 1077 icon.setOnLongClickListener(this); 1078 icon.setOnTouchListener(this); 1079 icon.setOnKeyListener(this); 1080 1081 int index = i - startIndex; 1082 int x = index % mCellCountX; 1083 int y = index / mCellCountX; 1084 layout.addViewToCellLayout(icon, -1, i, new PagedViewCellLayout.LayoutParams(x,y, 1,1)); 1085 1086 items.add(info); 1087 images.add(info.iconBitmap); 1088 } 1089 1090 layout.createHardwareLayers(); 1091 } 1092 1093 /** 1094 * A helper to return the priority for loading of the specified widget page. 1095 */ 1096 private int getWidgetPageLoadPriority(int page) { 1097 // If we are snapping to another page, use that index as the target page index 1098 int toPage = mCurrentPage; 1099 if (mNextPage > -1) { 1100 toPage = mNextPage; 1101 } 1102 1103 // We use the distance from the target page as an initial guess of priority, but if there 1104 // are no pages of higher priority than the page specified, then bump up the priority of 1105 // the specified page. 1106 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1107 int minPageDiff = Integer.MAX_VALUE; 1108 while (iter.hasNext()) { 1109 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1110 minPageDiff = Math.abs(task.page - toPage); 1111 } 1112 1113 int rawPageDiff = Math.abs(page - toPage); 1114 return rawPageDiff - Math.min(rawPageDiff, minPageDiff); 1115 } 1116 /** 1117 * Return the appropriate thread priority for loading for a given page (we give the current 1118 * page much higher priority) 1119 */ 1120 private int getThreadPriorityForPage(int page) { 1121 // TODO-APPS_CUSTOMIZE: detect number of cores and set thread priorities accordingly below 1122 int pageDiff = getWidgetPageLoadPriority(page); 1123 if (pageDiff <= 0) { 1124 return Process.THREAD_PRIORITY_LESS_FAVORABLE; 1125 } else if (pageDiff <= 1) { 1126 return Process.THREAD_PRIORITY_LOWEST; 1127 } else { 1128 return Process.THREAD_PRIORITY_LOWEST; 1129 } 1130 } 1131 private int getSleepForPage(int page) { 1132 int pageDiff = getWidgetPageLoadPriority(page); 1133 return Math.max(0, pageDiff * sPageSleepDelay); 1134 } 1135 /** 1136 * Creates and executes a new AsyncTask to load a page of widget previews. 1137 */ 1138 private void prepareLoadWidgetPreviewsTask(int page, ArrayList<Object> widgets, 1139 int cellWidth, int cellHeight, int cellCountX) { 1140 1141 // Prune all tasks that are no longer needed 1142 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1143 while (iter.hasNext()) { 1144 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1145 int taskPage = task.page; 1146 if (taskPage < getAssociatedLowerPageBound(mCurrentPage) || 1147 taskPage > getAssociatedUpperPageBound(mCurrentPage)) { 1148 task.cancel(false); 1149 iter.remove(); 1150 } else { 1151 task.setThreadPriority(getThreadPriorityForPage(taskPage)); 1152 } 1153 } 1154 1155 // We introduce a slight delay to order the loading of side pages so that we don't thrash 1156 final int sleepMs = getSleepForPage(page); 1157 AsyncTaskPageData pageData = new AsyncTaskPageData(page, widgets, cellWidth, cellHeight, 1158 new AsyncTaskCallback() { 1159 @Override 1160 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1161 try { 1162 try { 1163 Thread.sleep(sleepMs); 1164 } catch (Exception e) {} 1165 loadWidgetPreviewsInBackground(task, data); 1166 } finally { 1167 if (task.isCancelled()) { 1168 data.cleanup(true); 1169 } 1170 } 1171 } 1172 }, 1173 new AsyncTaskCallback() { 1174 @Override 1175 public void run(AppsCustomizeAsyncTask task, AsyncTaskPageData data) { 1176 mRunningTasks.remove(task); 1177 if (task.isCancelled()) return; 1178 // do cleanup inside onSyncWidgetPageItems 1179 onSyncWidgetPageItems(data); 1180 } 1181 }); 1182 1183 // Ensure that the task is appropriately prioritized and runs in parallel 1184 AppsCustomizeAsyncTask t = new AppsCustomizeAsyncTask(page, 1185 AsyncTaskPageData.Type.LoadWidgetPreviewData); 1186 t.setThreadPriority(getThreadPriorityForPage(page)); 1187 t.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, pageData); 1188 mRunningTasks.add(t); 1189 } 1190 1191 /* 1192 * Widgets PagedView implementation 1193 */ 1194 private void setupPage(PagedViewGridLayout layout) { 1195 layout.setPadding(mPageLayoutPaddingLeft, mPageLayoutPaddingTop, 1196 mPageLayoutPaddingRight, mPageLayoutPaddingBottom); 1197 1198 // Note: We force a measure here to get around the fact that when we do layout calculations 1199 // immediately after syncing, we don't have a proper width. 1200 int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), MeasureSpec.AT_MOST); 1201 int heightSpec = MeasureSpec.makeMeasureSpec(getMeasuredHeight(), MeasureSpec.AT_MOST); 1202 layout.setMinimumWidth(getPageContentWidth()); 1203 layout.measure(widthSpec, heightSpec); 1204 } 1205 1206 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 1207 renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f); 1208 } 1209 1210 private void renderDrawableToBitmap(Drawable d, Bitmap bitmap, int x, int y, int w, int h, 1211 float scale) { 1212 if (bitmap != null) { 1213 Canvas c = new Canvas(bitmap); 1214 c.scale(scale, scale); 1215 Rect oldBounds = d.copyBounds(); 1216 d.setBounds(x, y, x + w, y + h); 1217 d.draw(c); 1218 d.setBounds(oldBounds); // Restore the bounds 1219 c.setBitmap(null); 1220 } 1221 } 1222 1223 private Bitmap getShortcutPreview(ResolveInfo info, int maxWidth, int maxHeight) { 1224 Bitmap tempBitmap = mCachedShortcutPreviewBitmap.get(); 1225 final Canvas c = mCachedShortcutPreviewCanvas.get(); 1226 if (tempBitmap == null || 1227 tempBitmap.getWidth() != maxWidth || 1228 tempBitmap.getHeight() != maxHeight) { 1229 tempBitmap = Bitmap.createBitmap(maxWidth, maxHeight, Config.ARGB_8888); 1230 mCachedShortcutPreviewBitmap.set(tempBitmap); 1231 } else { 1232 c.setBitmap(tempBitmap); 1233 c.drawColor(0, PorterDuff.Mode.CLEAR); 1234 c.setBitmap(null); 1235 } 1236 // Render the icon 1237 Drawable icon = mIconCache.getFullResIcon(info); 1238 1239 int paddingTop = 1240 getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_top); 1241 int paddingLeft = 1242 getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_left); 1243 int paddingRight = 1244 getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_right); 1245 1246 int scaledIconWidth = (maxWidth - paddingLeft - paddingRight); 1247 float scaleSize = scaledIconWidth / (float) mAppIconSize; 1248 1249 renderDrawableToBitmap( 1250 icon, tempBitmap, paddingLeft, paddingTop, scaledIconWidth, scaledIconWidth); 1251 1252 Bitmap preview = Bitmap.createBitmap(maxWidth, maxHeight, Config.ARGB_8888); 1253 c.setBitmap(preview); 1254 Paint p = mCachedShortcutPreviewPaint.get(); 1255 if (p == null) { 1256 p = new Paint(); 1257 ColorMatrix colorMatrix = new ColorMatrix(); 1258 colorMatrix.setSaturation(0); 1259 p.setColorFilter(new ColorMatrixColorFilter(colorMatrix)); 1260 p.setAlpha((int) (255 * 0.06f)); 1261 //float density = 1f; 1262 //p.setMaskFilter(new BlurMaskFilter(15*density, BlurMaskFilter.Blur.NORMAL)); 1263 mCachedShortcutPreviewPaint.set(p); 1264 } 1265 c.drawBitmap(tempBitmap, 0, 0, p); 1266 c.setBitmap(null); 1267 1268 renderDrawableToBitmap(icon, preview, 0, 0, mAppIconSize, mAppIconSize); 1269 1270 return preview; 1271 } 1272 1273 private Bitmap getWidgetPreview(ComponentName provider, int previewImage, 1274 int iconId, int cellHSpan, int cellVSpan, int maxWidth, 1275 int maxHeight) { 1276 // Load the preview image if possible 1277 String packageName = provider.getPackageName(); 1278 if (maxWidth < 0) maxWidth = Integer.MAX_VALUE; 1279 if (maxHeight < 0) maxHeight = Integer.MAX_VALUE; 1280 1281 Drawable drawable = null; 1282 if (previewImage != 0) { 1283 drawable = mPackageManager.getDrawable(packageName, previewImage, null); 1284 if (drawable == null) { 1285 Log.w(TAG, "Can't load widget preview drawable 0x" + 1286 Integer.toHexString(previewImage) + " for provider: " + provider); 1287 } 1288 } 1289 1290 int bitmapWidth; 1291 int bitmapHeight; 1292 Bitmap defaultPreview = null; 1293 boolean widgetPreviewExists = (drawable != null); 1294 if (widgetPreviewExists) { 1295 bitmapWidth = drawable.getIntrinsicWidth(); 1296 bitmapHeight = drawable.getIntrinsicHeight(); 1297 } else { 1298 // Generate a preview image if we couldn't load one 1299 if (cellHSpan < 1) cellHSpan = 1; 1300 if (cellVSpan < 1) cellVSpan = 1; 1301 1302 BitmapDrawable previewDrawable = (BitmapDrawable) getResources() 1303 .getDrawable(R.drawable.widget_preview_tile); 1304 final int previewDrawableWidth = previewDrawable 1305 .getIntrinsicWidth(); 1306 final int previewDrawableHeight = previewDrawable 1307 .getIntrinsicHeight(); 1308 bitmapWidth = previewDrawableWidth * cellHSpan; // subtract 2 dips 1309 bitmapHeight = previewDrawableHeight * cellVSpan; 1310 1311 defaultPreview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, 1312 Config.ARGB_8888); 1313 final Canvas c = mCachedAppWidgetPreviewCanvas.get(); 1314 c.setBitmap(defaultPreview); 1315 previewDrawable.setBounds(0, 0, bitmapWidth, bitmapHeight); 1316 previewDrawable.setTileModeXY(Shader.TileMode.REPEAT, 1317 Shader.TileMode.REPEAT); 1318 previewDrawable.draw(c); 1319 c.setBitmap(null); 1320 1321 // Draw the icon in the top left corner 1322 int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 1323 int smallestSide = Math.min(bitmapWidth, bitmapHeight); 1324 float iconScale = Math.min((float) smallestSide 1325 / (mAppIconSize + 2 * minOffset), 1f); 1326 1327 try { 1328 Drawable icon = null; 1329 int hoffset = 1330 (int) ((previewDrawableWidth - mAppIconSize * iconScale) / 2); 1331 int yoffset = 1332 (int) ((previewDrawableHeight - mAppIconSize * iconScale) / 2); 1333 if (iconId > 0) 1334 icon = mIconCache.getFullResIcon(packageName, iconId); 1335 Resources resources = mLauncher.getResources(); 1336 if (icon != null) { 1337 renderDrawableToBitmap(icon, defaultPreview, hoffset, 1338 yoffset, (int) (mAppIconSize * iconScale), 1339 (int) (mAppIconSize * iconScale)); 1340 } 1341 } catch (Resources.NotFoundException e) { 1342 } 1343 } 1344 1345 // Scale to fit width only - let the widget preview be clipped in the 1346 // vertical dimension 1347 float scale = 1f; 1348 if (bitmapWidth > maxWidth) { 1349 scale = maxWidth / (float) bitmapWidth; 1350 } 1351 if (scale != 1f) { 1352 bitmapWidth = (int) (scale * bitmapWidth); 1353 bitmapHeight = (int) (scale * bitmapHeight); 1354 } 1355 1356 Bitmap preview = Bitmap.createBitmap(bitmapWidth, bitmapHeight, 1357 Config.ARGB_8888); 1358 1359 // Draw the scaled preview into the final bitmap 1360 if (widgetPreviewExists) { 1361 renderDrawableToBitmap(drawable, preview, 0, 0, bitmapWidth, 1362 bitmapHeight); 1363 } else { 1364 final Canvas c = mCachedAppWidgetPreviewCanvas.get(); 1365 final Rect src = mCachedAppWidgetPreviewSrcRect.get(); 1366 final Rect dest = mCachedAppWidgetPreviewDestRect.get(); 1367 c.setBitmap(preview); 1368 src.set(0, 0, defaultPreview.getWidth(), defaultPreview.getHeight()); 1369 dest.set(0, 0, preview.getWidth(), preview.getHeight()); 1370 1371 Paint p = mCachedAppWidgetPreviewPaint.get(); 1372 if (p == null) { 1373 p = new Paint(); 1374 p.setFilterBitmap(true); 1375 mCachedAppWidgetPreviewPaint.set(p); 1376 } 1377 c.drawBitmap(defaultPreview, src, dest, p); 1378 c.setBitmap(null); 1379 } 1380 return preview; 1381 } 1382 1383 public void syncWidgetPageItems(final int page, final boolean immediate) { 1384 int numItemsPerPage = mWidgetCountX * mWidgetCountY; 1385 1386 // Calculate the dimensions of each cell we are giving to each widget 1387 final ArrayList<Object> items = new ArrayList<Object>(); 1388 int contentWidth = mWidgetSpacingLayout.getContentWidth(); 1389 final int cellWidth = ((contentWidth - mPageLayoutPaddingLeft - mPageLayoutPaddingRight 1390 - ((mWidgetCountX - 1) * mWidgetWidthGap)) / mWidgetCountX); 1391 int contentHeight = mWidgetSpacingLayout.getContentHeight(); 1392 final int cellHeight = ((contentHeight - mPageLayoutPaddingTop - mPageLayoutPaddingBottom 1393 - ((mWidgetCountY - 1) * mWidgetHeightGap)) / mWidgetCountY); 1394 1395 // Prepare the set of widgets to load previews for in the background 1396 int offset = (page - mNumAppsPages) * numItemsPerPage; 1397 for (int i = offset; i < Math.min(offset + numItemsPerPage, mWidgets.size()); ++i) { 1398 items.add(mWidgets.get(i)); 1399 } 1400 1401 // Prepopulate the pages with the other widget info, and fill in the previews later 1402 final PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1403 layout.setColumnCount(layout.getCellCountX()); 1404 for (int i = 0; i < items.size(); ++i) { 1405 Object rawInfo = items.get(i); 1406 PendingAddItemInfo createItemInfo = null; 1407 PagedViewWidget widget = (PagedViewWidget) mLayoutInflater.inflate( 1408 R.layout.apps_customize_widget, layout, false); 1409 if (rawInfo instanceof AppWidgetProviderInfo) { 1410 // Fill in the widget information 1411 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1412 createItemInfo = new PendingAddWidgetInfo(info, null, null); 1413 1414 // Determine the widget spans and min resize spans. 1415 int[] spanXY = Launcher.getSpanForWidget(mLauncher, info); 1416 createItemInfo.spanX = spanXY[0]; 1417 createItemInfo.spanY = spanXY[1]; 1418 int[] minSpanXY = Launcher.getMinSpanForWidget(mLauncher, info); 1419 createItemInfo.minSpanX = minSpanXY[0]; 1420 createItemInfo.minSpanY = minSpanXY[1]; 1421 1422 widget.applyFromAppWidgetProviderInfo(info, -1, spanXY); 1423 widget.setTag(createItemInfo); 1424 widget.setShortPressListener(this); 1425 } else if (rawInfo instanceof ResolveInfo) { 1426 // Fill in the shortcuts information 1427 ResolveInfo info = (ResolveInfo) rawInfo; 1428 createItemInfo = new PendingAddShortcutInfo(info.activityInfo); 1429 createItemInfo.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 1430 createItemInfo.componentName = new ComponentName(info.activityInfo.packageName, 1431 info.activityInfo.name); 1432 widget.applyFromResolveInfo(mPackageManager, info); 1433 widget.setTag(createItemInfo); 1434 } 1435 widget.setOnClickListener(this); 1436 widget.setOnLongClickListener(this); 1437 widget.setOnTouchListener(this); 1438 widget.setOnKeyListener(this); 1439 1440 // Layout each widget 1441 int ix = i % mWidgetCountX; 1442 int iy = i / mWidgetCountX; 1443 GridLayout.LayoutParams lp = new GridLayout.LayoutParams( 1444 GridLayout.spec(iy, GridLayout.LEFT), 1445 GridLayout.spec(ix, GridLayout.TOP)); 1446 lp.width = cellWidth; 1447 lp.height = cellHeight; 1448 lp.setGravity(Gravity.TOP | Gravity.LEFT); 1449 if (ix > 0) lp.leftMargin = mWidgetWidthGap; 1450 if (iy > 0) lp.topMargin = mWidgetHeightGap; 1451 layout.addView(widget, lp); 1452 } 1453 1454 // wait until a call on onLayout to start loading, because 1455 // PagedViewWidget.getPreviewSize() will return 0 if it hasn't been laid out 1456 // TODO: can we do a measure/layout immediately? 1457 layout.setOnLayoutListener(new Runnable() { 1458 public void run() { 1459 // Load the widget previews 1460 int maxPreviewWidth = cellWidth; 1461 int maxPreviewHeight = cellHeight; 1462 if (layout.getChildCount() > 0) { 1463 PagedViewWidget w = (PagedViewWidget) layout.getChildAt(0); 1464 int[] maxSize = w.getPreviewSize(); 1465 maxPreviewWidth = maxSize[0]; 1466 maxPreviewHeight = maxSize[1]; 1467 } 1468 if (immediate) { 1469 AsyncTaskPageData data = new AsyncTaskPageData(page, items, 1470 maxPreviewWidth, maxPreviewHeight, null, null); 1471 loadWidgetPreviewsInBackground(null, data); 1472 onSyncWidgetPageItems(data); 1473 } else { 1474 if (mInTransition) { 1475 mDeferredPrepareLoadWidgetPreviewsTasks.add(this); 1476 } else { 1477 prepareLoadWidgetPreviewsTask(page, items, 1478 maxPreviewWidth, maxPreviewHeight, mWidgetCountX); 1479 } 1480 } 1481 } 1482 }); 1483 } 1484 private void loadWidgetPreviewsInBackground(AppsCustomizeAsyncTask task, 1485 AsyncTaskPageData data) { 1486 // loadWidgetPreviewsInBackground can be called without a task to load a set of widget 1487 // previews synchronously 1488 if (task != null) { 1489 // Ensure that this task starts running at the correct priority 1490 task.syncThreadPriority(); 1491 } 1492 1493 // Load each of the widget/shortcut previews 1494 ArrayList<Object> items = data.items; 1495 ArrayList<Bitmap> images = data.generatedImages; 1496 int count = items.size(); 1497 for (int i = 0; i < count; ++i) { 1498 if (task != null) { 1499 // Ensure we haven't been cancelled yet 1500 if (task.isCancelled()) break; 1501 // Before work on each item, ensure that this task is running at the correct 1502 // priority 1503 task.syncThreadPriority(); 1504 } 1505 1506 Object rawInfo = items.get(i); 1507 if (rawInfo instanceof AppWidgetProviderInfo) { 1508 AppWidgetProviderInfo info = (AppWidgetProviderInfo) rawInfo; 1509 int[] cellSpans = Launcher.getSpanForWidget(mLauncher, info); 1510 1511 int maxWidth = Math.min(data.maxImageWidth, 1512 mWidgetSpacingLayout.estimateCellWidth(cellSpans[0])); 1513 int maxHeight = Math.min(data.maxImageHeight, 1514 mWidgetSpacingLayout.estimateCellHeight(cellSpans[1])); 1515 Bitmap b = getWidgetPreview(info.provider, info.previewImage, info.icon, 1516 cellSpans[0], cellSpans[1], maxWidth, maxHeight); 1517 images.add(b); 1518 } else if (rawInfo instanceof ResolveInfo) { 1519 // Fill in the shortcuts information 1520 ResolveInfo info = (ResolveInfo) rawInfo; 1521 images.add(getShortcutPreview(info, data.maxImageWidth, data.maxImageHeight)); 1522 } 1523 } 1524 } 1525 1526 private void onSyncWidgetPageItems(AsyncTaskPageData data) { 1527 if (mInTransition) { 1528 mDeferredSyncWidgetPageItems.add(data); 1529 return; 1530 } 1531 try { 1532 int page = data.page; 1533 PagedViewGridLayout layout = (PagedViewGridLayout) getPageAt(page); 1534 1535 ArrayList<Object> items = data.items; 1536 int count = items.size(); 1537 for (int i = 0; i < count; ++i) { 1538 PagedViewWidget widget = (PagedViewWidget) layout.getChildAt(i); 1539 if (widget != null) { 1540 Bitmap preview = data.generatedImages.get(i); 1541 widget.applyPreview(new FastBitmapDrawable(preview), i); 1542 } 1543 } 1544 1545 layout.createHardwareLayer(); 1546 invalidate(); 1547 1548 // Update all thread priorities 1549 Iterator<AppsCustomizeAsyncTask> iter = mRunningTasks.iterator(); 1550 while (iter.hasNext()) { 1551 AppsCustomizeAsyncTask task = (AppsCustomizeAsyncTask) iter.next(); 1552 int pageIndex = task.page; 1553 task.setThreadPriority(getThreadPriorityForPage(pageIndex)); 1554 } 1555 } finally { 1556 data.cleanup(false); 1557 } 1558 } 1559 1560 @Override 1561 public void syncPages() { 1562 removeAllViews(); 1563 cancelAllTasks(); 1564 1565 Context context = getContext(); 1566 for (int j = 0; j < mNumWidgetPages; ++j) { 1567 PagedViewGridLayout layout = new PagedViewGridLayout(context, mWidgetCountX, 1568 mWidgetCountY); 1569 setupPage(layout); 1570 addView(layout, new PagedView.LayoutParams(LayoutParams.MATCH_PARENT, 1571 LayoutParams.MATCH_PARENT)); 1572 } 1573 1574 for (int i = 0; i < mNumAppsPages; ++i) { 1575 PagedViewCellLayout layout = new PagedViewCellLayout(context); 1576 setupPage(layout); 1577 addView(layout); 1578 } 1579 } 1580 1581 @Override 1582 public void syncPageItems(int page, boolean immediate) { 1583 if (page < mNumAppsPages) { 1584 syncAppsPageItems(page, immediate); 1585 } else { 1586 syncWidgetPageItems(page, immediate); 1587 } 1588 } 1589 1590 // We want our pages to be z-ordered such that the further a page is to the left, the higher 1591 // it is in the z-order. This is important to insure touch events are handled correctly. 1592 View getPageAt(int index) { 1593 return getChildAt(indexToPage(index)); 1594 } 1595 1596 @Override 1597 protected int indexToPage(int index) { 1598 return getChildCount() - index - 1; 1599 } 1600 1601 // In apps customize, we have a scrolling effect which emulates pulling cards off of a stack. 1602 @Override 1603 protected void screenScrolled(int screenCenter) { 1604 super.screenScrolled(screenCenter); 1605 1606 for (int i = 0; i < getChildCount(); i++) { 1607 View v = getPageAt(i); 1608 if (v != null) { 1609 float scrollProgress = getScrollProgress(screenCenter, v, i); 1610 1611 float interpolatedProgress = 1612 mZInterpolator.getInterpolation(Math.abs(Math.min(scrollProgress, 0))); 1613 float scale = (1 - interpolatedProgress) + 1614 interpolatedProgress * TRANSITION_SCALE_FACTOR; 1615 float translationX = Math.min(0, scrollProgress) * v.getMeasuredWidth(); 1616 1617 float alpha; 1618 1619 if (scrollProgress < 0) { 1620 alpha = scrollProgress < 0 ? mAlphaInterpolator.getInterpolation( 1621 1 - Math.abs(scrollProgress)) : 1.0f; 1622 } else { 1623 // On large screens we need to fade the page as it nears its leftmost position 1624 alpha = mLeftScreenAlphaInterpolator.getInterpolation(1 - scrollProgress); 1625 } 1626 1627 v.setCameraDistance(mDensity * CAMERA_DISTANCE); 1628 int pageWidth = v.getMeasuredWidth(); 1629 int pageHeight = v.getMeasuredHeight(); 1630 1631 if (PERFORM_OVERSCROLL_ROTATION) { 1632 if (i == 0 && scrollProgress < 0) { 1633 // Overscroll to the left 1634 v.setPivotX(TRANSITION_PIVOT * pageWidth); 1635 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1636 scale = 1.0f; 1637 alpha = 1.0f; 1638 // On the first page, we don't want the page to have any lateral motion 1639 translationX = 0; 1640 } else if (i == getChildCount() - 1 && scrollProgress > 0) { 1641 // Overscroll to the right 1642 v.setPivotX((1 - TRANSITION_PIVOT) * pageWidth); 1643 v.setRotationY(-TRANSITION_MAX_ROTATION * scrollProgress); 1644 scale = 1.0f; 1645 alpha = 1.0f; 1646 // On the last page, we don't want the page to have any lateral motion. 1647 translationX = 0; 1648 } else { 1649 v.setPivotY(pageHeight / 2.0f); 1650 v.setPivotX(pageWidth / 2.0f); 1651 v.setRotationY(0f); 1652 } 1653 } 1654 1655 v.setTranslationX(translationX); 1656 v.setScaleX(scale); 1657 v.setScaleY(scale); 1658 v.setAlpha(alpha); 1659 1660 // If the view has 0 alpha, we set it to be invisible so as to prevent 1661 // it from accepting touches 1662 if (alpha == 0) { 1663 v.setVisibility(INVISIBLE); 1664 } else if (v.getVisibility() != VISIBLE) { 1665 v.setVisibility(VISIBLE); 1666 } 1667 } 1668 } 1669 } 1670 1671 protected void overScroll(float amount) { 1672 acceleratedOverScroll(amount); 1673 } 1674 1675 /** 1676 * Used by the parent to get the content width to set the tab bar to 1677 * @return 1678 */ 1679 public int getPageContentWidth() { 1680 return mContentWidth; 1681 } 1682 1683 @Override 1684 protected void onPageEndMoving() { 1685 super.onPageEndMoving(); 1686 mForceDrawAllChildrenNextFrame = true; 1687 // We reset the save index when we change pages so that it will be recalculated on next 1688 // rotation 1689 mSaveInstanceStateItemIndex = -1; 1690 } 1691 1692 /* 1693 * AllAppsView implementation 1694 */ 1695 @Override 1696 public void setup(Launcher launcher, DragController dragController) { 1697 mLauncher = launcher; 1698 mDragController = dragController; 1699 } 1700 @Override 1701 public void zoom(float zoom, boolean animate) { 1702 // TODO-APPS_CUSTOMIZE: Call back to mLauncher.zoomed() 1703 } 1704 @Override 1705 public boolean isVisible() { 1706 return (getVisibility() == VISIBLE); 1707 } 1708 @Override 1709 public boolean isAnimating() { 1710 return false; 1711 } 1712 1713 /** 1714 * We should call thise method whenever the core data changes (mApps, mWidgets) so that we can 1715 * appropriately determine when to invalidate the PagedView page data. In cases where the data 1716 * has yet to be set, we can requestLayout() and wait for onDataReady() to be called in the 1717 * next onMeasure() pass, which will trigger an invalidatePageData() itself. 1718 */ 1719 private void invalidateOnDataChange() { 1720 if (!isDataReady()) { 1721 // The next layout pass will trigger data-ready if both widgets and apps are set, so 1722 // request a layout to trigger the page data when ready. 1723 requestLayout(); 1724 } else { 1725 cancelAllTasks(); 1726 invalidatePageData(); 1727 } 1728 } 1729 1730 @Override 1731 public void setApps(ArrayList<ApplicationInfo> list) { 1732 mApps = list; 1733 Collections.sort(mApps, LauncherModel.APP_NAME_COMPARATOR); 1734 updatePageCounts(); 1735 invalidateOnDataChange(); 1736 } 1737 private void addAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1738 // We add it in place, in alphabetical order 1739 int count = list.size(); 1740 for (int i = 0; i < count; ++i) { 1741 ApplicationInfo info = list.get(i); 1742 int index = Collections.binarySearch(mApps, info, LauncherModel.APP_NAME_COMPARATOR); 1743 if (index < 0) { 1744 mApps.add(-(index + 1), info); 1745 } 1746 } 1747 } 1748 @Override 1749 public void addApps(ArrayList<ApplicationInfo> list) { 1750 addAppsWithoutInvalidate(list); 1751 updatePageCounts(); 1752 invalidateOnDataChange(); 1753 } 1754 private int findAppByComponent(List<ApplicationInfo> list, ApplicationInfo item) { 1755 ComponentName removeComponent = item.intent.getComponent(); 1756 int length = list.size(); 1757 for (int i = 0; i < length; ++i) { 1758 ApplicationInfo info = list.get(i); 1759 if (info.intent.getComponent().equals(removeComponent)) { 1760 return i; 1761 } 1762 } 1763 return -1; 1764 } 1765 private void removeAppsWithoutInvalidate(ArrayList<ApplicationInfo> list) { 1766 // loop through all the apps and remove apps that have the same component 1767 int length = list.size(); 1768 for (int i = 0; i < length; ++i) { 1769 ApplicationInfo info = list.get(i); 1770 int removeIndex = findAppByComponent(mApps, info); 1771 if (removeIndex > -1) { 1772 mApps.remove(removeIndex); 1773 } 1774 } 1775 } 1776 @Override 1777 public void removeApps(ArrayList<ApplicationInfo> list) { 1778 removeAppsWithoutInvalidate(list); 1779 updatePageCounts(); 1780 invalidateOnDataChange(); 1781 } 1782 @Override 1783 public void updateApps(ArrayList<ApplicationInfo> list) { 1784 // We remove and re-add the updated applications list because it's properties may have 1785 // changed (ie. the title), and this will ensure that the items will be in their proper 1786 // place in the list. 1787 removeAppsWithoutInvalidate(list); 1788 addAppsWithoutInvalidate(list); 1789 updatePageCounts(); 1790 invalidateOnDataChange(); 1791 } 1792 1793 @Override 1794 public void reset() { 1795 // If we have reset, then we should not continue to restore the previous state 1796 mSaveInstanceStateItemIndex = -1; 1797 1798 AppsCustomizeTabHost tabHost = getTabHost(); 1799 String tag = tabHost.getCurrentTabTag(); 1800 if (tag != null) { 1801 if (!tag.equals(tabHost.getTabTagForContentType(ContentType.Applications))) { 1802 tabHost.setCurrentTabFromContent(ContentType.Applications); 1803 } 1804 } 1805 1806 if (mCurrentPage != 0) { 1807 invalidatePageData(0); 1808 } 1809 } 1810 1811 private AppsCustomizeTabHost getTabHost() { 1812 return (AppsCustomizeTabHost) mLauncher.findViewById(R.id.apps_customize_pane); 1813 } 1814 1815 @Override 1816 public void dumpState() { 1817 // TODO: Dump information related to current list of Applications, Widgets, etc. 1818 ApplicationInfo.dumpApplicationInfoList(TAG, "mApps", mApps); 1819 dumpAppWidgetProviderInfoList(TAG, "mWidgets", mWidgets); 1820 } 1821 1822 private void dumpAppWidgetProviderInfoList(String tag, String label, 1823 ArrayList<Object> list) { 1824 Log.d(tag, label + " size=" + list.size()); 1825 for (Object i: list) { 1826 if (i instanceof AppWidgetProviderInfo) { 1827 AppWidgetProviderInfo info = (AppWidgetProviderInfo) i; 1828 Log.d(tag, " label=\"" + info.label + "\" previewImage=" + info.previewImage 1829 + " resizeMode=" + info.resizeMode + " configure=" + info.configure 1830 + " initialLayout=" + info.initialLayout 1831 + " minWidth=" + info.minWidth + " minHeight=" + info.minHeight); 1832 } else if (i instanceof ResolveInfo) { 1833 ResolveInfo info = (ResolveInfo) i; 1834 Log.d(tag, " label=\"" + info.loadLabel(mPackageManager) + "\" icon=" 1835 + info.icon); 1836 } 1837 } 1838 } 1839 1840 @Override 1841 public void surrender() { 1842 // TODO: If we are in the middle of any process (ie. for holographic outlines, etc) we 1843 // should stop this now. 1844 1845 // Stop all background tasks 1846 cancelAllTasks(); 1847 } 1848 1849 @Override 1850 public void iconPressed(PagedViewIcon icon) { 1851 // Reset the previously pressed icon and store a reference to the pressed icon so that 1852 // we can reset it on return to Launcher (in Launcher.onResume()) 1853 if (mPressedIcon != null) { 1854 mPressedIcon.resetDrawableState(); 1855 } 1856 mPressedIcon = icon; 1857 } 1858 1859 public void resetDrawableState() { 1860 if (mPressedIcon != null) { 1861 mPressedIcon.resetDrawableState(); 1862 mPressedIcon = null; 1863 } 1864 } 1865 1866 /* 1867 * We load an extra page on each side to prevent flashes from scrolling and loading of the 1868 * widget previews in the background with the AsyncTasks. 1869 */ 1870 final static int sLookBehindPageCount = 2; 1871 final static int sLookAheadPageCount = 2; 1872 protected int getAssociatedLowerPageBound(int page) { 1873 final int count = getChildCount(); 1874 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1875 int windowMinIndex = Math.max(Math.min(page - sLookBehindPageCount, count - windowSize), 0); 1876 return windowMinIndex; 1877 } 1878 protected int getAssociatedUpperPageBound(int page) { 1879 final int count = getChildCount(); 1880 int windowSize = Math.min(count, sLookBehindPageCount + sLookAheadPageCount + 1); 1881 int windowMaxIndex = Math.min(Math.max(page + sLookAheadPageCount, windowSize - 1), 1882 count - 1); 1883 return windowMaxIndex; 1884 } 1885 1886 @Override 1887 protected String getCurrentPageDescription() { 1888 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 1889 int stringId = R.string.default_scroll_format; 1890 int count = 0; 1891 1892 if (page < mNumAppsPages) { 1893 stringId = R.string.apps_customize_apps_scroll_format; 1894 count = mNumAppsPages; 1895 } else { 1896 page -= mNumAppsPages; 1897 stringId = R.string.apps_customize_widgets_scroll_format; 1898 count = mNumWidgetPages; 1899 } 1900 1901 return String.format(getContext().getString(stringId), page + 1, count); 1902 } 1903 } 1904