1 /* 2 * Copyright (C) 2008 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.content.res; 18 19 import android.content.pm.ActivityInfo; 20 import android.os.Parcel; 21 import android.os.Parcelable; 22 import android.text.TextUtils; 23 import android.view.View; 24 25 import java.util.Locale; 26 27 /** 28 * This class describes all device configuration information that can 29 * impact the resources the application retrieves. This includes both 30 * user-specified configuration options (locale and scaling) as well 31 * as device configurations (such as input modes, screen size and screen orientation). 32 * <p>You can acquire this object from {@link Resources}, using {@link 33 * Resources#getConfiguration}. Thus, from an activity, you can get it by chaining the request 34 * with {@link android.app.Activity#getResources}:</p> 35 * <pre>Configuration config = getResources().getConfiguration();</pre> 36 */ 37 public final class Configuration implements Parcelable, Comparable<Configuration> { 38 /** @hide */ 39 public static final Configuration EMPTY = new Configuration(); 40 41 /** 42 * Current user preference for the scaling factor for fonts, relative 43 * to the base density scaling. 44 */ 45 public float fontScale; 46 47 /** 48 * IMSI MCC (Mobile Country Code), corresponding to 49 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#MccQualifier">mcc</a> 50 * resource qualifier. 0 if undefined. 51 */ 52 public int mcc; 53 54 /** 55 * IMSI MNC (Mobile Network Code), corresponding to 56 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#MccQualifier">mnc</a> 57 * resource qualifier. 0 if undefined. 58 */ 59 public int mnc; 60 61 /** 62 * Current user preference for the locale, corresponding to 63 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#LocaleQualifier">locale</a> 64 * resource qualifier. 65 */ 66 public Locale locale; 67 68 /** 69 * Locale should persist on setting. This is hidden because it is really 70 * questionable whether this is the right way to expose the functionality. 71 * @hide 72 */ 73 public boolean userSetLocale; 74 75 /** Constant for {@link #screenLayout}: bits that encode the size. */ 76 public static final int SCREENLAYOUT_SIZE_MASK = 0x0f; 77 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK} 78 * value indicating that no size has been set. */ 79 public static final int SCREENLAYOUT_SIZE_UNDEFINED = 0x00; 80 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK} 81 * value indicating the screen is at least approximately 320x426 dp units, 82 * corresponds to the 83 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenSizeQualifier">small</a> 84 * resource qualifier. 85 * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting 86 * Multiple Screens</a> for more information. */ 87 public static final int SCREENLAYOUT_SIZE_SMALL = 0x01; 88 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK} 89 * value indicating the screen is at least approximately 320x470 dp units, 90 * corresponds to the 91 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenSizeQualifier">normal</a> 92 * resource qualifier. 93 * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting 94 * Multiple Screens</a> for more information. */ 95 public static final int SCREENLAYOUT_SIZE_NORMAL = 0x02; 96 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK} 97 * value indicating the screen is at least approximately 480x640 dp units, 98 * corresponds to the 99 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenSizeQualifier">large</a> 100 * resource qualifier. 101 * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting 102 * Multiple Screens</a> for more information. */ 103 public static final int SCREENLAYOUT_SIZE_LARGE = 0x03; 104 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK} 105 * value indicating the screen is at least approximately 720x960 dp units, 106 * corresponds to the 107 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenSizeQualifier">xlarge</a> 108 * resource qualifier. 109 * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting 110 * Multiple Screens</a> for more information.*/ 111 public static final int SCREENLAYOUT_SIZE_XLARGE = 0x04; 112 113 /** Constant for {@link #screenLayout}: bits that encode the aspect ratio. */ 114 public static final int SCREENLAYOUT_LONG_MASK = 0x30; 115 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LONG_MASK} 116 * value indicating that no size has been set. */ 117 public static final int SCREENLAYOUT_LONG_UNDEFINED = 0x00; 118 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LONG_MASK} 119 * value that corresponds to the 120 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenAspectQualifier">notlong</a> 121 * resource qualifier. */ 122 public static final int SCREENLAYOUT_LONG_NO = 0x10; 123 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LONG_MASK} 124 * value that corresponds to the 125 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenAspectQualifier">long</a> 126 * resource qualifier. */ 127 public static final int SCREENLAYOUT_LONG_YES = 0x20; 128 129 /** Constant for {@link #screenLayout}: bits that encode the layout direction. */ 130 public static final int SCREENLAYOUT_LAYOUTDIR_MASK = 0xC0; 131 /** Constant for {@link #screenLayout}: bits shift to get the layout direction. */ 132 public static final int SCREENLAYOUT_LAYOUTDIR_SHIFT = 6; 133 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LAYOUTDIR_MASK} 134 * value indicating that no layout dir has been set. */ 135 public static final int SCREENLAYOUT_LAYOUTDIR_UNDEFINED = 0x00; 136 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LAYOUTDIR_MASK} 137 * value indicating that a layout dir has been set to LTR. */ 138 public static final int SCREENLAYOUT_LAYOUTDIR_LTR = 0x01 << SCREENLAYOUT_LAYOUTDIR_SHIFT; 139 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LAYOUTDIR_MASK} 140 * value indicating that a layout dir has been set to RTL. */ 141 public static final int SCREENLAYOUT_LAYOUTDIR_RTL = 0x02 << SCREENLAYOUT_LAYOUTDIR_SHIFT; 142 143 /** Constant for {@link #screenLayout}: a value indicating that screenLayout is undefined */ 144 public static final int SCREENLAYOUT_UNDEFINED = SCREENLAYOUT_SIZE_UNDEFINED | 145 SCREENLAYOUT_LONG_UNDEFINED | SCREENLAYOUT_LAYOUTDIR_UNDEFINED; 146 147 /** 148 * Special flag we generate to indicate that the screen layout requires 149 * us to use a compatibility mode for apps that are not modern layout 150 * aware. 151 * @hide 152 */ 153 public static final int SCREENLAYOUT_COMPAT_NEEDED = 0x10000000; 154 155 /** 156 * Bit mask of overall layout of the screen. Currently there are two 157 * fields: 158 * <p>The {@link #SCREENLAYOUT_SIZE_MASK} bits define the overall size 159 * of the screen. They may be one of 160 * {@link #SCREENLAYOUT_SIZE_SMALL}, {@link #SCREENLAYOUT_SIZE_NORMAL}, 161 * {@link #SCREENLAYOUT_SIZE_LARGE}, or {@link #SCREENLAYOUT_SIZE_XLARGE}. 162 * 163 * <p>The {@link #SCREENLAYOUT_LONG_MASK} defines whether the screen 164 * is wider/taller than normal. They may be one of 165 * {@link #SCREENLAYOUT_LONG_NO} or {@link #SCREENLAYOUT_LONG_YES}. 166 * 167 * <p>The {@link #SCREENLAYOUT_LAYOUTDIR_MASK} defines whether the screen layout 168 * is either LTR or RTL. They may be one of 169 * {@link #SCREENLAYOUT_LAYOUTDIR_LTR} or {@link #SCREENLAYOUT_LAYOUTDIR_RTL}. 170 * 171 * <p>See <a href="{@docRoot}guide/practices/screens_support.html">Supporting 172 * Multiple Screens</a> for more information. 173 */ 174 public int screenLayout; 175 176 /** @hide */ 177 static public int resetScreenLayout(int curLayout) { 178 return (curLayout&~(SCREENLAYOUT_LONG_MASK | SCREENLAYOUT_SIZE_MASK 179 | SCREENLAYOUT_COMPAT_NEEDED)) 180 | (SCREENLAYOUT_LONG_YES | SCREENLAYOUT_SIZE_XLARGE); 181 } 182 183 /** @hide */ 184 static public int reduceScreenLayout(int curLayout, int longSizeDp, int shortSizeDp) { 185 int screenLayoutSize; 186 boolean screenLayoutLong; 187 boolean screenLayoutCompatNeeded; 188 189 // These semi-magic numbers define our compatibility modes for 190 // applications with different screens. These are guarantees to 191 // app developers about the space they can expect for a particular 192 // configuration. DO NOT CHANGE! 193 if (longSizeDp < 470) { 194 // This is shorter than an HVGA normal density screen (which 195 // is 480 pixels on its long side). 196 screenLayoutSize = SCREENLAYOUT_SIZE_SMALL; 197 screenLayoutLong = false; 198 screenLayoutCompatNeeded = false; 199 } else { 200 // What size is this screen screen? 201 if (longSizeDp >= 960 && shortSizeDp >= 720) { 202 // 1.5xVGA or larger screens at medium density are the point 203 // at which we consider it to be an extra large screen. 204 screenLayoutSize = SCREENLAYOUT_SIZE_XLARGE; 205 } else if (longSizeDp >= 640 && shortSizeDp >= 480) { 206 // VGA or larger screens at medium density are the point 207 // at which we consider it to be a large screen. 208 screenLayoutSize = SCREENLAYOUT_SIZE_LARGE; 209 } else { 210 screenLayoutSize = SCREENLAYOUT_SIZE_NORMAL; 211 } 212 213 // If this screen is wider than normal HVGA, or taller 214 // than FWVGA, then for old apps we want to run in size 215 // compatibility mode. 216 if (shortSizeDp > 321 || longSizeDp > 570) { 217 screenLayoutCompatNeeded = true; 218 } else { 219 screenLayoutCompatNeeded = false; 220 } 221 222 // Is this a long screen? 223 if (((longSizeDp*3)/5) >= (shortSizeDp-1)) { 224 // Anything wider than WVGA (5:3) is considering to be long. 225 screenLayoutLong = true; 226 } else { 227 screenLayoutLong = false; 228 } 229 } 230 231 // Now reduce the last screenLayout to not be better than what we 232 // have found. 233 if (!screenLayoutLong) { 234 curLayout = (curLayout&~SCREENLAYOUT_LONG_MASK) | SCREENLAYOUT_LONG_NO; 235 } 236 if (screenLayoutCompatNeeded) { 237 curLayout |= Configuration.SCREENLAYOUT_COMPAT_NEEDED; 238 } 239 int curSize = curLayout&SCREENLAYOUT_SIZE_MASK; 240 if (screenLayoutSize < curSize) { 241 curLayout = (curLayout&~SCREENLAYOUT_SIZE_MASK) | screenLayoutSize; 242 } 243 return curLayout; 244 } 245 246 /** 247 * Check if the Configuration's current {@link #screenLayout} is at 248 * least the given size. 249 * 250 * @param size The desired size, either {@link #SCREENLAYOUT_SIZE_SMALL}, 251 * {@link #SCREENLAYOUT_SIZE_NORMAL}, {@link #SCREENLAYOUT_SIZE_LARGE}, or 252 * {@link #SCREENLAYOUT_SIZE_XLARGE}. 253 * @return Returns true if the current screen layout size is at least 254 * the given size. 255 */ 256 public boolean isLayoutSizeAtLeast(int size) { 257 int cur = screenLayout&SCREENLAYOUT_SIZE_MASK; 258 if (cur == SCREENLAYOUT_SIZE_UNDEFINED) return false; 259 return cur >= size; 260 } 261 262 /** Constant for {@link #touchscreen}: a value indicating that no value has been set. */ 263 public static final int TOUCHSCREEN_UNDEFINED = 0; 264 /** Constant for {@link #touchscreen}, value corresponding to the 265 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#TouchscreenQualifier">notouch</a> 266 * resource qualifier. */ 267 public static final int TOUCHSCREEN_NOTOUCH = 1; 268 /** @deprecated Not currently supported or used. */ 269 @Deprecated public static final int TOUCHSCREEN_STYLUS = 2; 270 /** Constant for {@link #touchscreen}, value corresponding to the 271 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#TouchscreenQualifier">finger</a> 272 * resource qualifier. */ 273 public static final int TOUCHSCREEN_FINGER = 3; 274 275 /** 276 * The kind of touch screen attached to the device. 277 * One of: {@link #TOUCHSCREEN_NOTOUCH}, {@link #TOUCHSCREEN_FINGER}. 278 */ 279 public int touchscreen; 280 281 /** Constant for {@link #keyboard}: a value indicating that no value has been set. */ 282 public static final int KEYBOARD_UNDEFINED = 0; 283 /** Constant for {@link #keyboard}, value corresponding to the 284 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ImeQualifier">nokeys</a> 285 * resource qualifier. */ 286 public static final int KEYBOARD_NOKEYS = 1; 287 /** Constant for {@link #keyboard}, value corresponding to the 288 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ImeQualifier">qwerty</a> 289 * resource qualifier. */ 290 public static final int KEYBOARD_QWERTY = 2; 291 /** Constant for {@link #keyboard}, value corresponding to the 292 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ImeQualifier">12key</a> 293 * resource qualifier. */ 294 public static final int KEYBOARD_12KEY = 3; 295 296 /** 297 * The kind of keyboard attached to the device. 298 * One of: {@link #KEYBOARD_NOKEYS}, {@link #KEYBOARD_QWERTY}, 299 * {@link #KEYBOARD_12KEY}. 300 */ 301 public int keyboard; 302 303 /** Constant for {@link #keyboardHidden}: a value indicating that no value has been set. */ 304 public static final int KEYBOARDHIDDEN_UNDEFINED = 0; 305 /** Constant for {@link #keyboardHidden}, value corresponding to the 306 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#KeyboardAvailQualifier">keysexposed</a> 307 * resource qualifier. */ 308 public static final int KEYBOARDHIDDEN_NO = 1; 309 /** Constant for {@link #keyboardHidden}, value corresponding to the 310 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#KeyboardAvailQualifier">keyshidden</a> 311 * resource qualifier. */ 312 public static final int KEYBOARDHIDDEN_YES = 2; 313 /** Constant matching actual resource implementation. {@hide} */ 314 public static final int KEYBOARDHIDDEN_SOFT = 3; 315 316 /** 317 * A flag indicating whether any keyboard is available. Unlike 318 * {@link #hardKeyboardHidden}, this also takes into account a soft 319 * keyboard, so if the hard keyboard is hidden but there is soft 320 * keyboard available, it will be set to NO. Value is one of: 321 * {@link #KEYBOARDHIDDEN_NO}, {@link #KEYBOARDHIDDEN_YES}. 322 */ 323 public int keyboardHidden; 324 325 /** Constant for {@link #hardKeyboardHidden}: a value indicating that no value has been set. */ 326 public static final int HARDKEYBOARDHIDDEN_UNDEFINED = 0; 327 /** Constant for {@link #hardKeyboardHidden}, value corresponding to the 328 * physical keyboard being exposed. */ 329 public static final int HARDKEYBOARDHIDDEN_NO = 1; 330 /** Constant for {@link #hardKeyboardHidden}, value corresponding to the 331 * physical keyboard being hidden. */ 332 public static final int HARDKEYBOARDHIDDEN_YES = 2; 333 334 /** 335 * A flag indicating whether the hard keyboard has been hidden. This will 336 * be set on a device with a mechanism to hide the keyboard from the 337 * user, when that mechanism is closed. One of: 338 * {@link #HARDKEYBOARDHIDDEN_NO}, {@link #HARDKEYBOARDHIDDEN_YES}. 339 */ 340 public int hardKeyboardHidden; 341 342 /** Constant for {@link #navigation}: a value indicating that no value has been set. */ 343 public static final int NAVIGATION_UNDEFINED = 0; 344 /** Constant for {@link #navigation}, value corresponding to the 345 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavigationQualifier">nonav</a> 346 * resource qualifier. */ 347 public static final int NAVIGATION_NONAV = 1; 348 /** Constant for {@link #navigation}, value corresponding to the 349 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavigationQualifier">dpad</a> 350 * resource qualifier. */ 351 public static final int NAVIGATION_DPAD = 2; 352 /** Constant for {@link #navigation}, value corresponding to the 353 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavigationQualifier">trackball</a> 354 * resource qualifier. */ 355 public static final int NAVIGATION_TRACKBALL = 3; 356 /** Constant for {@link #navigation}, value corresponding to the 357 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavigationQualifier">wheel</a> 358 * resource qualifier. */ 359 public static final int NAVIGATION_WHEEL = 4; 360 361 /** 362 * The kind of navigation method available on the device. 363 * One of: {@link #NAVIGATION_NONAV}, {@link #NAVIGATION_DPAD}, 364 * {@link #NAVIGATION_TRACKBALL}, {@link #NAVIGATION_WHEEL}. 365 */ 366 public int navigation; 367 368 /** Constant for {@link #navigationHidden}: a value indicating that no value has been set. */ 369 public static final int NAVIGATIONHIDDEN_UNDEFINED = 0; 370 /** Constant for {@link #navigationHidden}, value corresponding to the 371 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavAvailQualifier">navexposed</a> 372 * resource qualifier. */ 373 public static final int NAVIGATIONHIDDEN_NO = 1; 374 /** Constant for {@link #navigationHidden}, value corresponding to the 375 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavAvailQualifier">navhidden</a> 376 * resource qualifier. */ 377 public static final int NAVIGATIONHIDDEN_YES = 2; 378 379 /** 380 * A flag indicating whether any 5-way or DPAD navigation available. 381 * This will be set on a device with a mechanism to hide the navigation 382 * controls from the user, when that mechanism is closed. One of: 383 * {@link #NAVIGATIONHIDDEN_NO}, {@link #NAVIGATIONHIDDEN_YES}. 384 */ 385 public int navigationHidden; 386 387 /** Constant for {@link #orientation}: a value indicating that no value has been set. */ 388 public static final int ORIENTATION_UNDEFINED = 0; 389 /** Constant for {@link #orientation}, value corresponding to the 390 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#OrientationQualifier">port</a> 391 * resource qualifier. */ 392 public static final int ORIENTATION_PORTRAIT = 1; 393 /** Constant for {@link #orientation}, value corresponding to the 394 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#OrientationQualifier">land</a> 395 * resource qualifier. */ 396 public static final int ORIENTATION_LANDSCAPE = 2; 397 /** @deprecated Not currently supported or used. */ 398 @Deprecated public static final int ORIENTATION_SQUARE = 3; 399 400 /** 401 * Overall orientation of the screen. May be one of 402 * {@link #ORIENTATION_LANDSCAPE}, {@link #ORIENTATION_PORTRAIT}. 403 */ 404 public int orientation; 405 406 /** Constant for {@link #uiMode}: bits that encode the mode type. */ 407 public static final int UI_MODE_TYPE_MASK = 0x0f; 408 /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} 409 * value indicating that no mode type has been set. */ 410 public static final int UI_MODE_TYPE_UNDEFINED = 0x00; 411 /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} 412 * value that corresponds to 413 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">no 414 * UI mode</a> resource qualifier specified. */ 415 public static final int UI_MODE_TYPE_NORMAL = 0x01; 416 /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} 417 * value that corresponds to the 418 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">desk</a> 419 * resource qualifier. */ 420 public static final int UI_MODE_TYPE_DESK = 0x02; 421 /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} 422 * value that corresponds to the 423 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">car</a> 424 * resource qualifier. */ 425 public static final int UI_MODE_TYPE_CAR = 0x03; 426 /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} 427 * value that corresponds to the 428 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">television</a> 429 * resource qualifier. */ 430 public static final int UI_MODE_TYPE_TELEVISION = 0x04; 431 /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} 432 * value that corresponds to the 433 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">appliance</a> 434 * resource qualifier. */ 435 public static final int UI_MODE_TYPE_APPLIANCE = 0x05; 436 437 /** Constant for {@link #uiMode}: bits that encode the night mode. */ 438 public static final int UI_MODE_NIGHT_MASK = 0x30; 439 /** Constant for {@link #uiMode}: a {@link #UI_MODE_NIGHT_MASK} 440 * value indicating that no mode type has been set. */ 441 public static final int UI_MODE_NIGHT_UNDEFINED = 0x00; 442 /** Constant for {@link #uiMode}: a {@link #UI_MODE_NIGHT_MASK} 443 * value that corresponds to the 444 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NightQualifier">notnight</a> 445 * resource qualifier. */ 446 public static final int UI_MODE_NIGHT_NO = 0x10; 447 /** Constant for {@link #uiMode}: a {@link #UI_MODE_NIGHT_MASK} 448 * value that corresponds to the 449 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NightQualifier">night</a> 450 * resource qualifier. */ 451 public static final int UI_MODE_NIGHT_YES = 0x20; 452 453 /** 454 * Bit mask of the ui mode. Currently there are two fields: 455 * <p>The {@link #UI_MODE_TYPE_MASK} bits define the overall ui mode of the 456 * device. They may be one of {@link #UI_MODE_TYPE_UNDEFINED}, 457 * {@link #UI_MODE_TYPE_NORMAL}, {@link #UI_MODE_TYPE_DESK}, 458 * {@link #UI_MODE_TYPE_CAR}, {@link #UI_MODE_TYPE_TELEVISION}, or 459 * {@link #UI_MODE_TYPE_APPLIANCE}. 460 * 461 * <p>The {@link #UI_MODE_NIGHT_MASK} defines whether the screen 462 * is in a special mode. They may be one of {@link #UI_MODE_NIGHT_UNDEFINED}, 463 * {@link #UI_MODE_NIGHT_NO} or {@link #UI_MODE_NIGHT_YES}. 464 */ 465 public int uiMode; 466 467 /** 468 * Default value for {@link #screenWidthDp} indicating that no width 469 * has been specified. 470 */ 471 public static final int SCREEN_WIDTH_DP_UNDEFINED = 0; 472 473 /** 474 * The current width of the available screen space, in dp units, 475 * corresponding to 476 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenWidthQualifier">screen 477 * width</a> resource qualifier. Set to 478 * {@link #SCREEN_WIDTH_DP_UNDEFINED} if no width is specified. 479 */ 480 public int screenWidthDp; 481 482 /** 483 * Default value for {@link #screenHeightDp} indicating that no width 484 * has been specified. 485 */ 486 public static final int SCREEN_HEIGHT_DP_UNDEFINED = 0; 487 488 /** 489 * The current height of the available screen space, in dp units, 490 * corresponding to 491 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenHeightQualifier">screen 492 * height</a> resource qualifier. Set to 493 * {@link #SCREEN_HEIGHT_DP_UNDEFINED} if no height is specified. 494 */ 495 public int screenHeightDp; 496 497 /** 498 * Default value for {@link #smallestScreenWidthDp} indicating that no width 499 * has been specified. 500 */ 501 public static final int SMALLEST_SCREEN_WIDTH_DP_UNDEFINED = 0; 502 503 /** 504 * The smallest screen size an application will see in normal operation, 505 * corresponding to 506 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#SmallestScreenWidthQualifier">smallest 507 * screen width</a> resource qualifier. 508 * This is the smallest value of both screenWidthDp and screenHeightDp 509 * in both portrait and landscape. Set to 510 * {@link #SMALLEST_SCREEN_WIDTH_DP_UNDEFINED} if no width is specified. 511 */ 512 public int smallestScreenWidthDp; 513 514 /** 515 * Default value for {@link #densityDpi} indicating that no width 516 * has been specified. 517 */ 518 public static final int DENSITY_DPI_UNDEFINED = 0; 519 520 /** 521 * The target screen density being rendered to, 522 * corresponding to 523 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#DensityQualifier">density</a> 524 * resource qualifier. Set to 525 * {@link #DENSITY_DPI_UNDEFINED} if no density is specified. 526 */ 527 public int densityDpi; 528 529 /** @hide Hack to get this information from WM to app running in compat mode. */ 530 public int compatScreenWidthDp; 531 /** @hide Hack to get this information from WM to app running in compat mode. */ 532 public int compatScreenHeightDp; 533 /** @hide Hack to get this information from WM to app running in compat mode. */ 534 public int compatSmallestScreenWidthDp; 535 536 /** 537 * @hide Internal book-keeping. 538 */ 539 public int seq; 540 541 /** 542 * Construct an invalid Configuration. You must call {@link #setToDefaults} 543 * for this object to be valid. {@more} 544 */ 545 public Configuration() { 546 setToDefaults(); 547 } 548 549 /** 550 * Makes a deep copy suitable for modification. 551 */ 552 public Configuration(Configuration o) { 553 setTo(o); 554 } 555 556 public void setTo(Configuration o) { 557 fontScale = o.fontScale; 558 mcc = o.mcc; 559 mnc = o.mnc; 560 if (o.locale != null) { 561 locale = (Locale) o.locale.clone(); 562 } 563 userSetLocale = o.userSetLocale; 564 touchscreen = o.touchscreen; 565 keyboard = o.keyboard; 566 keyboardHidden = o.keyboardHidden; 567 hardKeyboardHidden = o.hardKeyboardHidden; 568 navigation = o.navigation; 569 navigationHidden = o.navigationHidden; 570 orientation = o.orientation; 571 screenLayout = o.screenLayout; 572 uiMode = o.uiMode; 573 screenWidthDp = o.screenWidthDp; 574 screenHeightDp = o.screenHeightDp; 575 smallestScreenWidthDp = o.smallestScreenWidthDp; 576 densityDpi = o.densityDpi; 577 compatScreenWidthDp = o.compatScreenWidthDp; 578 compatScreenHeightDp = o.compatScreenHeightDp; 579 compatSmallestScreenWidthDp = o.compatSmallestScreenWidthDp; 580 seq = o.seq; 581 } 582 583 public String toString() { 584 StringBuilder sb = new StringBuilder(128); 585 sb.append("{"); 586 sb.append(fontScale); 587 sb.append(" "); 588 if (mcc != 0) { 589 sb.append(mcc); 590 sb.append("mcc"); 591 } else { 592 sb.append("?mcc"); 593 } 594 if (mnc != 0) { 595 sb.append(mnc); 596 sb.append("mnc"); 597 } else { 598 sb.append("?mnc"); 599 } 600 if (locale != null) { 601 sb.append(" "); 602 sb.append(locale); 603 } else { 604 sb.append(" ?locale"); 605 } 606 int layoutDir = (screenLayout&SCREENLAYOUT_LAYOUTDIR_MASK); 607 switch (layoutDir) { 608 case SCREENLAYOUT_LAYOUTDIR_UNDEFINED: sb.append(" ?layoutDir"); break; 609 case SCREENLAYOUT_LAYOUTDIR_LTR: sb.append(" ldltr"); break; 610 case SCREENLAYOUT_LAYOUTDIR_RTL: sb.append(" ldrtl"); break; 611 default: sb.append(" layoutDir="); 612 sb.append(layoutDir >> SCREENLAYOUT_LAYOUTDIR_SHIFT); break; 613 } 614 if (smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED) { 615 sb.append(" sw"); sb.append(smallestScreenWidthDp); sb.append("dp"); 616 } else { 617 sb.append(" ?swdp"); 618 } 619 if (screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED) { 620 sb.append(" w"); sb.append(screenWidthDp); sb.append("dp"); 621 } else { 622 sb.append(" ?wdp"); 623 } 624 if (screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED) { 625 sb.append(" h"); sb.append(screenHeightDp); sb.append("dp"); 626 } else { 627 sb.append(" ?hdp"); 628 } 629 if (densityDpi != DENSITY_DPI_UNDEFINED) { 630 sb.append(" "); sb.append(densityDpi); sb.append("dpi"); 631 } else { 632 sb.append(" ?density"); 633 } 634 switch ((screenLayout&SCREENLAYOUT_SIZE_MASK)) { 635 case SCREENLAYOUT_SIZE_UNDEFINED: sb.append(" ?lsize"); break; 636 case SCREENLAYOUT_SIZE_SMALL: sb.append(" smll"); break; 637 case SCREENLAYOUT_SIZE_NORMAL: sb.append(" nrml"); break; 638 case SCREENLAYOUT_SIZE_LARGE: sb.append(" lrg"); break; 639 case SCREENLAYOUT_SIZE_XLARGE: sb.append(" xlrg"); break; 640 default: sb.append(" layoutSize="); 641 sb.append(screenLayout&SCREENLAYOUT_SIZE_MASK); break; 642 } 643 switch ((screenLayout&SCREENLAYOUT_LONG_MASK)) { 644 case SCREENLAYOUT_LONG_UNDEFINED: sb.append(" ?long"); break; 645 case SCREENLAYOUT_LONG_NO: /* not-long is not interesting to print */ break; 646 case SCREENLAYOUT_LONG_YES: sb.append(" long"); break; 647 default: sb.append(" layoutLong="); 648 sb.append(screenLayout&SCREENLAYOUT_LONG_MASK); break; 649 } 650 switch (orientation) { 651 case ORIENTATION_UNDEFINED: sb.append(" ?orien"); break; 652 case ORIENTATION_LANDSCAPE: sb.append(" land"); break; 653 case ORIENTATION_PORTRAIT: sb.append(" port"); break; 654 default: sb.append(" orien="); sb.append(orientation); break; 655 } 656 switch ((uiMode&UI_MODE_TYPE_MASK)) { 657 case UI_MODE_TYPE_UNDEFINED: sb.append(" ?uimode"); break; 658 case UI_MODE_TYPE_NORMAL: /* normal is not interesting to print */ break; 659 case UI_MODE_TYPE_DESK: sb.append(" desk"); break; 660 case UI_MODE_TYPE_CAR: sb.append(" car"); break; 661 case UI_MODE_TYPE_TELEVISION: sb.append(" television"); break; 662 case UI_MODE_TYPE_APPLIANCE: sb.append(" appliance"); break; 663 default: sb.append(" uimode="); sb.append(uiMode&UI_MODE_TYPE_MASK); break; 664 } 665 switch ((uiMode&UI_MODE_NIGHT_MASK)) { 666 case UI_MODE_NIGHT_UNDEFINED: sb.append(" ?night"); break; 667 case UI_MODE_NIGHT_NO: /* not-night is not interesting to print */ break; 668 case UI_MODE_NIGHT_YES: sb.append(" night"); break; 669 default: sb.append(" night="); sb.append(uiMode&UI_MODE_NIGHT_MASK); break; 670 } 671 switch (touchscreen) { 672 case TOUCHSCREEN_UNDEFINED: sb.append(" ?touch"); break; 673 case TOUCHSCREEN_NOTOUCH: sb.append(" -touch"); break; 674 case TOUCHSCREEN_STYLUS: sb.append(" stylus"); break; 675 case TOUCHSCREEN_FINGER: sb.append(" finger"); break; 676 default: sb.append(" touch="); sb.append(touchscreen); break; 677 } 678 switch (keyboard) { 679 case KEYBOARD_UNDEFINED: sb.append(" ?keyb"); break; 680 case KEYBOARD_NOKEYS: sb.append(" -keyb"); break; 681 case KEYBOARD_QWERTY: sb.append(" qwerty"); break; 682 case KEYBOARD_12KEY: sb.append(" 12key"); break; 683 default: sb.append(" keys="); sb.append(keyboard); break; 684 } 685 switch (keyboardHidden) { 686 case KEYBOARDHIDDEN_UNDEFINED: sb.append("/?"); break; 687 case KEYBOARDHIDDEN_NO: sb.append("/v"); break; 688 case KEYBOARDHIDDEN_YES: sb.append("/h"); break; 689 case KEYBOARDHIDDEN_SOFT: sb.append("/s"); break; 690 default: sb.append("/"); sb.append(keyboardHidden); break; 691 } 692 switch (hardKeyboardHidden) { 693 case HARDKEYBOARDHIDDEN_UNDEFINED: sb.append("/?"); break; 694 case HARDKEYBOARDHIDDEN_NO: sb.append("/v"); break; 695 case HARDKEYBOARDHIDDEN_YES: sb.append("/h"); break; 696 default: sb.append("/"); sb.append(hardKeyboardHidden); break; 697 } 698 switch (navigation) { 699 case NAVIGATION_UNDEFINED: sb.append(" ?nav"); break; 700 case NAVIGATION_NONAV: sb.append(" -nav"); break; 701 case NAVIGATION_DPAD: sb.append(" dpad"); break; 702 case NAVIGATION_TRACKBALL: sb.append(" tball"); break; 703 case NAVIGATION_WHEEL: sb.append(" wheel"); break; 704 default: sb.append(" nav="); sb.append(navigation); break; 705 } 706 switch (navigationHidden) { 707 case NAVIGATIONHIDDEN_UNDEFINED: sb.append("/?"); break; 708 case NAVIGATIONHIDDEN_NO: sb.append("/v"); break; 709 case NAVIGATIONHIDDEN_YES: sb.append("/h"); break; 710 default: sb.append("/"); sb.append(navigationHidden); break; 711 } 712 if (seq != 0) { 713 sb.append(" s."); 714 sb.append(seq); 715 } 716 sb.append('}'); 717 return sb.toString(); 718 } 719 720 /** 721 * Set this object to the system defaults. 722 */ 723 public void setToDefaults() { 724 fontScale = 1; 725 mcc = mnc = 0; 726 locale = null; 727 userSetLocale = false; 728 touchscreen = TOUCHSCREEN_UNDEFINED; 729 keyboard = KEYBOARD_UNDEFINED; 730 keyboardHidden = KEYBOARDHIDDEN_UNDEFINED; 731 hardKeyboardHidden = HARDKEYBOARDHIDDEN_UNDEFINED; 732 navigation = NAVIGATION_UNDEFINED; 733 navigationHidden = NAVIGATIONHIDDEN_UNDEFINED; 734 orientation = ORIENTATION_UNDEFINED; 735 screenLayout = SCREENLAYOUT_UNDEFINED; 736 uiMode = UI_MODE_TYPE_UNDEFINED; 737 screenWidthDp = compatScreenWidthDp = SCREEN_WIDTH_DP_UNDEFINED; 738 screenHeightDp = compatScreenHeightDp = SCREEN_HEIGHT_DP_UNDEFINED; 739 smallestScreenWidthDp = compatSmallestScreenWidthDp = SMALLEST_SCREEN_WIDTH_DP_UNDEFINED; 740 densityDpi = DENSITY_DPI_UNDEFINED; 741 seq = 0; 742 } 743 744 /** {@hide} */ 745 @Deprecated public void makeDefault() { 746 setToDefaults(); 747 } 748 749 /** 750 * Copy the fields from delta into this Configuration object, keeping 751 * track of which ones have changed. Any undefined fields in 752 * <var>delta</var> are ignored and not copied in to the current 753 * Configuration. 754 * @return Returns a bit mask of the changed fields, as per 755 * {@link #diff}. 756 */ 757 public int updateFrom(Configuration delta) { 758 int changed = 0; 759 if (delta.fontScale > 0 && fontScale != delta.fontScale) { 760 changed |= ActivityInfo.CONFIG_FONT_SCALE; 761 fontScale = delta.fontScale; 762 } 763 if (delta.mcc != 0 && mcc != delta.mcc) { 764 changed |= ActivityInfo.CONFIG_MCC; 765 mcc = delta.mcc; 766 } 767 if (delta.mnc != 0 && mnc != delta.mnc) { 768 changed |= ActivityInfo.CONFIG_MNC; 769 mnc = delta.mnc; 770 } 771 if (delta.locale != null 772 && (locale == null || !locale.equals(delta.locale))) { 773 changed |= ActivityInfo.CONFIG_LOCALE; 774 locale = delta.locale != null 775 ? (Locale) delta.locale.clone() : null; 776 // If locale has changed, then layout direction is also changed ... 777 changed |= ActivityInfo.CONFIG_LAYOUT_DIRECTION; 778 // ... and we need to update the layout direction (represented by the first 779 // 2 most significant bits in screenLayout). 780 setLayoutDirection(locale); 781 } 782 if (delta.userSetLocale && (!userSetLocale || ((changed & ActivityInfo.CONFIG_LOCALE) != 0))) 783 { 784 userSetLocale = true; 785 changed |= ActivityInfo.CONFIG_LOCALE; 786 } 787 if (delta.touchscreen != TOUCHSCREEN_UNDEFINED 788 && touchscreen != delta.touchscreen) { 789 changed |= ActivityInfo.CONFIG_TOUCHSCREEN; 790 touchscreen = delta.touchscreen; 791 } 792 if (delta.keyboard != KEYBOARD_UNDEFINED 793 && keyboard != delta.keyboard) { 794 changed |= ActivityInfo.CONFIG_KEYBOARD; 795 keyboard = delta.keyboard; 796 } 797 if (delta.keyboardHidden != KEYBOARDHIDDEN_UNDEFINED 798 && keyboardHidden != delta.keyboardHidden) { 799 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 800 keyboardHidden = delta.keyboardHidden; 801 } 802 if (delta.hardKeyboardHidden != HARDKEYBOARDHIDDEN_UNDEFINED 803 && hardKeyboardHidden != delta.hardKeyboardHidden) { 804 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 805 hardKeyboardHidden = delta.hardKeyboardHidden; 806 } 807 if (delta.navigation != NAVIGATION_UNDEFINED 808 && navigation != delta.navigation) { 809 changed |= ActivityInfo.CONFIG_NAVIGATION; 810 navigation = delta.navigation; 811 } 812 if (delta.navigationHidden != NAVIGATIONHIDDEN_UNDEFINED 813 && navigationHidden != delta.navigationHidden) { 814 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 815 navigationHidden = delta.navigationHidden; 816 } 817 if (delta.orientation != ORIENTATION_UNDEFINED 818 && orientation != delta.orientation) { 819 changed |= ActivityInfo.CONFIG_ORIENTATION; 820 orientation = delta.orientation; 821 } 822 if (getScreenLayoutNoDirection(delta.screenLayout) != 823 (SCREENLAYOUT_SIZE_UNDEFINED | SCREENLAYOUT_LONG_UNDEFINED) 824 && (getScreenLayoutNoDirection(screenLayout) != 825 getScreenLayoutNoDirection(delta.screenLayout))) { 826 changed |= ActivityInfo.CONFIG_SCREEN_LAYOUT; 827 // We need to preserve the previous layout dir bits if they were defined 828 if ((delta.screenLayout&SCREENLAYOUT_LAYOUTDIR_MASK) == 0) { 829 screenLayout = (screenLayout&SCREENLAYOUT_LAYOUTDIR_MASK)|delta.screenLayout; 830 } else { 831 screenLayout = delta.screenLayout; 832 } 833 } 834 if (delta.uiMode != (UI_MODE_TYPE_UNDEFINED|UI_MODE_NIGHT_UNDEFINED) 835 && uiMode != delta.uiMode) { 836 changed |= ActivityInfo.CONFIG_UI_MODE; 837 if ((delta.uiMode&UI_MODE_TYPE_MASK) != UI_MODE_TYPE_UNDEFINED) { 838 uiMode = (uiMode&~UI_MODE_TYPE_MASK) 839 | (delta.uiMode&UI_MODE_TYPE_MASK); 840 } 841 if ((delta.uiMode&UI_MODE_NIGHT_MASK) != UI_MODE_NIGHT_UNDEFINED) { 842 uiMode = (uiMode&~UI_MODE_NIGHT_MASK) 843 | (delta.uiMode&UI_MODE_NIGHT_MASK); 844 } 845 } 846 if (delta.screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED 847 && screenWidthDp != delta.screenWidthDp) { 848 changed |= ActivityInfo.CONFIG_SCREEN_SIZE; 849 screenWidthDp = delta.screenWidthDp; 850 } 851 if (delta.screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED 852 && screenHeightDp != delta.screenHeightDp) { 853 changed |= ActivityInfo.CONFIG_SCREEN_SIZE; 854 screenHeightDp = delta.screenHeightDp; 855 } 856 if (delta.smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED) { 857 changed |= ActivityInfo.CONFIG_SCREEN_SIZE; 858 smallestScreenWidthDp = delta.smallestScreenWidthDp; 859 } 860 if (delta.densityDpi != DENSITY_DPI_UNDEFINED) { 861 changed |= ActivityInfo.CONFIG_DENSITY; 862 densityDpi = delta.densityDpi; 863 } 864 if (delta.compatScreenWidthDp != SCREEN_WIDTH_DP_UNDEFINED) { 865 compatScreenWidthDp = delta.compatScreenWidthDp; 866 } 867 if (delta.compatScreenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED) { 868 compatScreenHeightDp = delta.compatScreenHeightDp; 869 } 870 if (delta.compatSmallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED) { 871 compatSmallestScreenWidthDp = delta.compatSmallestScreenWidthDp; 872 } 873 if (delta.seq != 0) { 874 seq = delta.seq; 875 } 876 877 return changed; 878 } 879 880 /** 881 * Return a bit mask of the differences between this Configuration 882 * object and the given one. Does not change the values of either. Any 883 * undefined fields in <var>delta</var> are ignored. 884 * @return Returns a bit mask indicating which configuration 885 * values has changed, containing any combination of 886 * {@link android.content.pm.ActivityInfo#CONFIG_FONT_SCALE 887 * PackageManager.ActivityInfo.CONFIG_FONT_SCALE}, 888 * {@link android.content.pm.ActivityInfo#CONFIG_MCC 889 * PackageManager.ActivityInfo.CONFIG_MCC}, 890 * {@link android.content.pm.ActivityInfo#CONFIG_MNC 891 * PackageManager.ActivityInfo.CONFIG_MNC}, 892 * {@link android.content.pm.ActivityInfo#CONFIG_LOCALE 893 * PackageManager.ActivityInfo.CONFIG_LOCALE}, 894 * {@link android.content.pm.ActivityInfo#CONFIG_TOUCHSCREEN 895 * PackageManager.ActivityInfo.CONFIG_TOUCHSCREEN}, 896 * {@link android.content.pm.ActivityInfo#CONFIG_KEYBOARD 897 * PackageManager.ActivityInfo.CONFIG_KEYBOARD}, 898 * {@link android.content.pm.ActivityInfo#CONFIG_NAVIGATION 899 * PackageManager.ActivityInfo.CONFIG_NAVIGATION}, 900 * {@link android.content.pm.ActivityInfo#CONFIG_ORIENTATION 901 * PackageManager.ActivityInfo.CONFIG_ORIENTATION}, 902 * {@link android.content.pm.ActivityInfo#CONFIG_SCREEN_LAYOUT 903 * PackageManager.ActivityInfo.CONFIG_SCREEN_LAYOUT}, or 904 * {@link android.content.pm.ActivityInfo#CONFIG_SCREEN_SIZE 905 * PackageManager.ActivityInfo.CONFIG_SCREEN_SIZE}, or 906 * {@link android.content.pm.ActivityInfo#CONFIG_SMALLEST_SCREEN_SIZE 907 * PackageManager.ActivityInfo.CONFIG_SMALLEST_SCREEN_SIZE}. 908 * {@link android.content.pm.ActivityInfo#CONFIG_LAYOUT_DIRECTION 909 * PackageManager.ActivityInfo.CONFIG_LAYOUT_DIRECTION}. 910 */ 911 public int diff(Configuration delta) { 912 int changed = 0; 913 if (delta.fontScale > 0 && fontScale != delta.fontScale) { 914 changed |= ActivityInfo.CONFIG_FONT_SCALE; 915 } 916 if (delta.mcc != 0 && mcc != delta.mcc) { 917 changed |= ActivityInfo.CONFIG_MCC; 918 } 919 if (delta.mnc != 0 && mnc != delta.mnc) { 920 changed |= ActivityInfo.CONFIG_MNC; 921 } 922 if (delta.locale != null 923 && (locale == null || !locale.equals(delta.locale))) { 924 changed |= ActivityInfo.CONFIG_LOCALE; 925 changed |= ActivityInfo.CONFIG_LAYOUT_DIRECTION; 926 } 927 if (delta.touchscreen != TOUCHSCREEN_UNDEFINED 928 && touchscreen != delta.touchscreen) { 929 changed |= ActivityInfo.CONFIG_TOUCHSCREEN; 930 } 931 if (delta.keyboard != KEYBOARD_UNDEFINED 932 && keyboard != delta.keyboard) { 933 changed |= ActivityInfo.CONFIG_KEYBOARD; 934 } 935 if (delta.keyboardHidden != KEYBOARDHIDDEN_UNDEFINED 936 && keyboardHidden != delta.keyboardHidden) { 937 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 938 } 939 if (delta.hardKeyboardHidden != HARDKEYBOARDHIDDEN_UNDEFINED 940 && hardKeyboardHidden != delta.hardKeyboardHidden) { 941 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 942 } 943 if (delta.navigation != NAVIGATION_UNDEFINED 944 && navigation != delta.navigation) { 945 changed |= ActivityInfo.CONFIG_NAVIGATION; 946 } 947 if (delta.navigationHidden != NAVIGATIONHIDDEN_UNDEFINED 948 && navigationHidden != delta.navigationHidden) { 949 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 950 } 951 if (delta.orientation != ORIENTATION_UNDEFINED 952 && orientation != delta.orientation) { 953 changed |= ActivityInfo.CONFIG_ORIENTATION; 954 } 955 if (getScreenLayoutNoDirection(delta.screenLayout) != 956 (SCREENLAYOUT_SIZE_UNDEFINED | SCREENLAYOUT_LONG_UNDEFINED) 957 && getScreenLayoutNoDirection(screenLayout) != 958 getScreenLayoutNoDirection(delta.screenLayout)) { 959 changed |= ActivityInfo.CONFIG_SCREEN_LAYOUT; 960 } 961 if (delta.uiMode != (UI_MODE_TYPE_UNDEFINED|UI_MODE_NIGHT_UNDEFINED) 962 && uiMode != delta.uiMode) { 963 changed |= ActivityInfo.CONFIG_UI_MODE; 964 } 965 if (delta.screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED 966 && screenWidthDp != delta.screenWidthDp) { 967 changed |= ActivityInfo.CONFIG_SCREEN_SIZE; 968 } 969 if (delta.screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED 970 && screenHeightDp != delta.screenHeightDp) { 971 changed |= ActivityInfo.CONFIG_SCREEN_SIZE; 972 } 973 if (delta.smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED 974 && smallestScreenWidthDp != delta.smallestScreenWidthDp) { 975 changed |= ActivityInfo.CONFIG_SMALLEST_SCREEN_SIZE; 976 } 977 if (delta.densityDpi != DENSITY_DPI_UNDEFINED 978 && densityDpi != delta.densityDpi) { 979 changed |= ActivityInfo.CONFIG_DENSITY; 980 } 981 982 return changed; 983 } 984 985 /** 986 * Determine if a new resource needs to be loaded from the bit set of 987 * configuration changes returned by {@link #updateFrom(Configuration)}. 988 * 989 * @param configChanges The mask of changes configurations as returned by 990 * {@link #updateFrom(Configuration)}. 991 * @param interestingChanges The configuration changes that the resource 992 * can handled, as given in {@link android.util.TypedValue#changingConfigurations}. 993 * 994 * @return Return true if the resource needs to be loaded, else false. 995 */ 996 public static boolean needNewResources(int configChanges, int interestingChanges) { 997 return (configChanges & (interestingChanges|ActivityInfo.CONFIG_FONT_SCALE)) != 0; 998 } 999 1000 /** 1001 * @hide Return true if the sequence of 'other' is better than this. Assumes 1002 * that 'this' is your current sequence and 'other' is a new one you have 1003 * received some how and want to compare with what you have. 1004 */ 1005 public boolean isOtherSeqNewer(Configuration other) { 1006 if (other == null) { 1007 // Sanity check. 1008 return false; 1009 } 1010 if (other.seq == 0) { 1011 // If the other sequence is not specified, then we must assume 1012 // it is newer since we don't know any better. 1013 return true; 1014 } 1015 if (seq == 0) { 1016 // If this sequence is not specified, then we also consider the 1017 // other is better. Yes we have a preference for other. Sue us. 1018 return true; 1019 } 1020 int diff = other.seq - seq; 1021 if (diff > 0x10000) { 1022 // If there has been a sufficiently large jump, assume the 1023 // sequence has wrapped around. 1024 return false; 1025 } 1026 return diff > 0; 1027 } 1028 1029 /** 1030 * Parcelable methods 1031 */ 1032 public int describeContents() { 1033 return 0; 1034 } 1035 1036 public void writeToParcel(Parcel dest, int flags) { 1037 dest.writeFloat(fontScale); 1038 dest.writeInt(mcc); 1039 dest.writeInt(mnc); 1040 if (locale == null) { 1041 dest.writeInt(0); 1042 } else { 1043 dest.writeInt(1); 1044 dest.writeString(locale.getLanguage()); 1045 dest.writeString(locale.getCountry()); 1046 dest.writeString(locale.getVariant()); 1047 } 1048 if(userSetLocale) { 1049 dest.writeInt(1); 1050 } else { 1051 dest.writeInt(0); 1052 } 1053 dest.writeInt(touchscreen); 1054 dest.writeInt(keyboard); 1055 dest.writeInt(keyboardHidden); 1056 dest.writeInt(hardKeyboardHidden); 1057 dest.writeInt(navigation); 1058 dest.writeInt(navigationHidden); 1059 dest.writeInt(orientation); 1060 dest.writeInt(screenLayout); 1061 dest.writeInt(uiMode); 1062 dest.writeInt(screenWidthDp); 1063 dest.writeInt(screenHeightDp); 1064 dest.writeInt(smallestScreenWidthDp); 1065 dest.writeInt(densityDpi); 1066 dest.writeInt(compatScreenWidthDp); 1067 dest.writeInt(compatScreenHeightDp); 1068 dest.writeInt(compatSmallestScreenWidthDp); 1069 dest.writeInt(seq); 1070 } 1071 1072 public void readFromParcel(Parcel source) { 1073 fontScale = source.readFloat(); 1074 mcc = source.readInt(); 1075 mnc = source.readInt(); 1076 if (source.readInt() != 0) { 1077 locale = new Locale(source.readString(), source.readString(), 1078 source.readString()); 1079 } 1080 userSetLocale = (source.readInt()==1); 1081 touchscreen = source.readInt(); 1082 keyboard = source.readInt(); 1083 keyboardHidden = source.readInt(); 1084 hardKeyboardHidden = source.readInt(); 1085 navigation = source.readInt(); 1086 navigationHidden = source.readInt(); 1087 orientation = source.readInt(); 1088 screenLayout = source.readInt(); 1089 uiMode = source.readInt(); 1090 screenWidthDp = source.readInt(); 1091 screenHeightDp = source.readInt(); 1092 smallestScreenWidthDp = source.readInt(); 1093 densityDpi = source.readInt(); 1094 compatScreenWidthDp = source.readInt(); 1095 compatScreenHeightDp = source.readInt(); 1096 compatSmallestScreenWidthDp = source.readInt(); 1097 seq = source.readInt(); 1098 } 1099 1100 public static final Parcelable.Creator<Configuration> CREATOR 1101 = new Parcelable.Creator<Configuration>() { 1102 public Configuration createFromParcel(Parcel source) { 1103 return new Configuration(source); 1104 } 1105 1106 public Configuration[] newArray(int size) { 1107 return new Configuration[size]; 1108 } 1109 }; 1110 1111 /** 1112 * Construct this Configuration object, reading from the Parcel. 1113 */ 1114 private Configuration(Parcel source) { 1115 readFromParcel(source); 1116 } 1117 1118 public int compareTo(Configuration that) { 1119 int n; 1120 float a = this.fontScale; 1121 float b = that.fontScale; 1122 if (a < b) return -1; 1123 if (a > b) return 1; 1124 n = this.mcc - that.mcc; 1125 if (n != 0) return n; 1126 n = this.mnc - that.mnc; 1127 if (n != 0) return n; 1128 if (this.locale == null) { 1129 if (that.locale != null) return 1; 1130 } else if (that.locale == null) { 1131 return -1; 1132 } else { 1133 n = this.locale.getLanguage().compareTo(that.locale.getLanguage()); 1134 if (n != 0) return n; 1135 n = this.locale.getCountry().compareTo(that.locale.getCountry()); 1136 if (n != 0) return n; 1137 n = this.locale.getVariant().compareTo(that.locale.getVariant()); 1138 if (n != 0) return n; 1139 } 1140 n = this.touchscreen - that.touchscreen; 1141 if (n != 0) return n; 1142 n = this.keyboard - that.keyboard; 1143 if (n != 0) return n; 1144 n = this.keyboardHidden - that.keyboardHidden; 1145 if (n != 0) return n; 1146 n = this.hardKeyboardHidden - that.hardKeyboardHidden; 1147 if (n != 0) return n; 1148 n = this.navigation - that.navigation; 1149 if (n != 0) return n; 1150 n = this.navigationHidden - that.navigationHidden; 1151 if (n != 0) return n; 1152 n = this.orientation - that.orientation; 1153 if (n != 0) return n; 1154 n = this.screenLayout - that.screenLayout; 1155 if (n != 0) return n; 1156 n = this.uiMode - that.uiMode; 1157 if (n != 0) return n; 1158 n = this.screenWidthDp - that.screenWidthDp; 1159 if (n != 0) return n; 1160 n = this.screenHeightDp - that.screenHeightDp; 1161 if (n != 0) return n; 1162 n = this.smallestScreenWidthDp - that.smallestScreenWidthDp; 1163 if (n != 0) return n; 1164 n = this.densityDpi - that.densityDpi; 1165 //if (n != 0) return n; 1166 return n; 1167 } 1168 1169 public boolean equals(Configuration that) { 1170 if (that == null) return false; 1171 if (that == this) return true; 1172 return this.compareTo(that) == 0; 1173 } 1174 1175 public boolean equals(Object that) { 1176 try { 1177 return equals((Configuration)that); 1178 } catch (ClassCastException e) { 1179 } 1180 return false; 1181 } 1182 1183 public int hashCode() { 1184 int result = 17; 1185 result = 31 * result + Float.floatToIntBits(fontScale); 1186 result = 31 * result + mcc; 1187 result = 31 * result + mnc; 1188 result = 31 * result + (locale != null ? locale.hashCode() : 0); 1189 result = 31 * result + touchscreen; 1190 result = 31 * result + keyboard; 1191 result = 31 * result + keyboardHidden; 1192 result = 31 * result + hardKeyboardHidden; 1193 result = 31 * result + navigation; 1194 result = 31 * result + navigationHidden; 1195 result = 31 * result + orientation; 1196 result = 31 * result + screenLayout; 1197 result = 31 * result + uiMode; 1198 result = 31 * result + screenWidthDp; 1199 result = 31 * result + screenHeightDp; 1200 result = 31 * result + smallestScreenWidthDp; 1201 result = 31 * result + densityDpi; 1202 return result; 1203 } 1204 1205 /** 1206 * Set the locale. This is the preferred way for setting up the locale (instead of using the 1207 * direct accessor). This will also set the userLocale and layout direction according to 1208 * the locale. 1209 * 1210 * @param loc The locale. Can be null. 1211 */ 1212 public void setLocale(Locale loc) { 1213 locale = loc; 1214 userSetLocale = true; 1215 setLayoutDirection(locale); 1216 } 1217 1218 /** 1219 * Return the layout direction. Will be either {@link View#LAYOUT_DIRECTION_LTR} or 1220 * {@link View#LAYOUT_DIRECTION_RTL}. 1221 * 1222 * @return Returns {@link View#LAYOUT_DIRECTION_RTL} if the configuration 1223 * is {@link #SCREENLAYOUT_LAYOUTDIR_RTL}, otherwise {@link View#LAYOUT_DIRECTION_LTR}. 1224 */ 1225 public int getLayoutDirection() { 1226 return (screenLayout&SCREENLAYOUT_LAYOUTDIR_MASK) == SCREENLAYOUT_LAYOUTDIR_RTL 1227 ? View.LAYOUT_DIRECTION_RTL : View.LAYOUT_DIRECTION_LTR; 1228 } 1229 1230 /** 1231 * Set the layout direction from the Locale. 1232 * 1233 * @param locale The Locale. If null will set the layout direction to 1234 * {@link View#LAYOUT_DIRECTION_LTR}. If not null will set it to the layout direction 1235 * corresponding to the Locale. 1236 * 1237 * @see {@link View#LAYOUT_DIRECTION_LTR} and {@link View#LAYOUT_DIRECTION_RTL} 1238 */ 1239 public void setLayoutDirection(Locale locale) { 1240 // There is a "1" difference between the configuration values for 1241 // layout direction and View constants for layout direction, just add "1". 1242 final int layoutDirection = 1 + TextUtils.getLayoutDirectionFromLocale(locale); 1243 screenLayout = (screenLayout&~SCREENLAYOUT_LAYOUTDIR_MASK)| 1244 (layoutDirection << SCREENLAYOUT_LAYOUTDIR_SHIFT); 1245 } 1246 1247 private static int getScreenLayoutNoDirection(int screenLayout) { 1248 return screenLayout&~SCREENLAYOUT_LAYOUTDIR_MASK; 1249 } 1250 } 1251
