Configuration.java revision d8415f4bf061000b049143b4f48b96b2005450bb
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 17package android.content.res; 18 19import android.content.pm.ActivityInfo; 20import android.os.Parcel; 21import android.os.Parcelable; 22import android.text.TextUtils; 23import android.view.View; 24 25import 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 */ 37public 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. Note that the actual MNC may be 0; in order to check 58 * for this use the {@link #MNC_ZERO} symbol. 59 */ 60 public int mnc; 61 62 /** 63 * Constant used to to represent MNC (Mobile Network Code) zero. 64 * 0 cannot be used, since it is used to represent an undefined MNC. 65 */ 66 public static final int MNC_ZERO = 0xffff; 67 68 /** 69 * Current user preference for the locale, corresponding to 70 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#LocaleQualifier">locale</a> 71 * resource qualifier. 72 */ 73 public Locale locale; 74 75 /** 76 * Locale should persist on setting. This is hidden because it is really 77 * questionable whether this is the right way to expose the functionality. 78 * @hide 79 */ 80 public boolean userSetLocale; 81 82 /** Constant for {@link #screenLayout}: bits that encode the size. */ 83 public static final int SCREENLAYOUT_SIZE_MASK = 0x0f; 84 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK} 85 * value indicating that no size has been set. */ 86 public static final int SCREENLAYOUT_SIZE_UNDEFINED = 0x00; 87 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK} 88 * value indicating the screen is at least approximately 320x426 dp units, 89 * corresponds to the 90 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenSizeQualifier">small</a> 91 * resource qualifier. 92 * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting 93 * Multiple Screens</a> for more information. */ 94 public static final int SCREENLAYOUT_SIZE_SMALL = 0x01; 95 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK} 96 * value indicating the screen is at least approximately 320x470 dp units, 97 * corresponds to the 98 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenSizeQualifier">normal</a> 99 * resource qualifier. 100 * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting 101 * Multiple Screens</a> for more information. */ 102 public static final int SCREENLAYOUT_SIZE_NORMAL = 0x02; 103 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK} 104 * value indicating the screen is at least approximately 480x640 dp units, 105 * corresponds to the 106 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenSizeQualifier">large</a> 107 * resource qualifier. 108 * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting 109 * Multiple Screens</a> for more information. */ 110 public static final int SCREENLAYOUT_SIZE_LARGE = 0x03; 111 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK} 112 * value indicating the screen is at least approximately 720x960 dp units, 113 * corresponds to the 114 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenSizeQualifier">xlarge</a> 115 * resource qualifier. 116 * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting 117 * Multiple Screens</a> for more information.*/ 118 public static final int SCREENLAYOUT_SIZE_XLARGE = 0x04; 119 120 /** Constant for {@link #screenLayout}: bits that encode the aspect ratio. */ 121 public static final int SCREENLAYOUT_LONG_MASK = 0x30; 122 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LONG_MASK} 123 * value indicating that no size has been set. */ 124 public static final int SCREENLAYOUT_LONG_UNDEFINED = 0x00; 125 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LONG_MASK} 126 * value that corresponds to the 127 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenAspectQualifier">notlong</a> 128 * resource qualifier. */ 129 public static final int SCREENLAYOUT_LONG_NO = 0x10; 130 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LONG_MASK} 131 * value that corresponds to the 132 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenAspectQualifier">long</a> 133 * resource qualifier. */ 134 public static final int SCREENLAYOUT_LONG_YES = 0x20; 135 136 /** Constant for {@link #screenLayout}: bits that encode the layout direction. */ 137 public static final int SCREENLAYOUT_LAYOUTDIR_MASK = 0xC0; 138 /** Constant for {@link #screenLayout}: bits shift to get the layout direction. */ 139 public static final int SCREENLAYOUT_LAYOUTDIR_SHIFT = 6; 140 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LAYOUTDIR_MASK} 141 * value indicating that no layout dir has been set. */ 142 public static final int SCREENLAYOUT_LAYOUTDIR_UNDEFINED = 0x00; 143 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LAYOUTDIR_MASK} 144 * value indicating that a layout dir has been set to LTR. */ 145 public static final int SCREENLAYOUT_LAYOUTDIR_LTR = 0x01 << SCREENLAYOUT_LAYOUTDIR_SHIFT; 146 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LAYOUTDIR_MASK} 147 * value indicating that a layout dir has been set to RTL. */ 148 public static final int SCREENLAYOUT_LAYOUTDIR_RTL = 0x02 << SCREENLAYOUT_LAYOUTDIR_SHIFT; 149 150 /** Constant for {@link #screenLayout}: a value indicating that screenLayout is undefined */ 151 public static final int SCREENLAYOUT_UNDEFINED = SCREENLAYOUT_SIZE_UNDEFINED | 152 SCREENLAYOUT_LONG_UNDEFINED | SCREENLAYOUT_LAYOUTDIR_UNDEFINED; 153 154 /** 155 * Special flag we generate to indicate that the screen layout requires 156 * us to use a compatibility mode for apps that are not modern layout 157 * aware. 158 * @hide 159 */ 160 public static final int SCREENLAYOUT_COMPAT_NEEDED = 0x10000000; 161 162 /** 163 * Bit mask of overall layout of the screen. Currently there are two 164 * fields: 165 * <p>The {@link #SCREENLAYOUT_SIZE_MASK} bits define the overall size 166 * of the screen. They may be one of 167 * {@link #SCREENLAYOUT_SIZE_SMALL}, {@link #SCREENLAYOUT_SIZE_NORMAL}, 168 * {@link #SCREENLAYOUT_SIZE_LARGE}, or {@link #SCREENLAYOUT_SIZE_XLARGE}. 169 * 170 * <p>The {@link #SCREENLAYOUT_LONG_MASK} defines whether the screen 171 * is wider/taller than normal. They may be one of 172 * {@link #SCREENLAYOUT_LONG_NO} or {@link #SCREENLAYOUT_LONG_YES}. 173 * 174 * <p>The {@link #SCREENLAYOUT_LAYOUTDIR_MASK} defines whether the screen layout 175 * is either LTR or RTL. They may be one of 176 * {@link #SCREENLAYOUT_LAYOUTDIR_LTR} or {@link #SCREENLAYOUT_LAYOUTDIR_RTL}. 177 * 178 * <p>See <a href="{@docRoot}guide/practices/screens_support.html">Supporting 179 * Multiple Screens</a> for more information. 180 */ 181 public int screenLayout; 182 183 /** @hide */ 184 static public int resetScreenLayout(int curLayout) { 185 return (curLayout&~(SCREENLAYOUT_LONG_MASK | SCREENLAYOUT_SIZE_MASK 186 | SCREENLAYOUT_COMPAT_NEEDED)) 187 | (SCREENLAYOUT_LONG_YES | SCREENLAYOUT_SIZE_XLARGE); 188 } 189 190 /** @hide */ 191 static public int reduceScreenLayout(int curLayout, int longSizeDp, int shortSizeDp) { 192 int screenLayoutSize; 193 boolean screenLayoutLong; 194 boolean screenLayoutCompatNeeded; 195 196 // These semi-magic numbers define our compatibility modes for 197 // applications with different screens. These are guarantees to 198 // app developers about the space they can expect for a particular 199 // configuration. DO NOT CHANGE! 200 if (longSizeDp < 470) { 201 // This is shorter than an HVGA normal density screen (which 202 // is 480 pixels on its long side). 203 screenLayoutSize = SCREENLAYOUT_SIZE_SMALL; 204 screenLayoutLong = false; 205 screenLayoutCompatNeeded = false; 206 } else { 207 // What size is this screen screen? 208 if (longSizeDp >= 960 && shortSizeDp >= 720) { 209 // 1.5xVGA or larger screens at medium density are the point 210 // at which we consider it to be an extra large screen. 211 screenLayoutSize = SCREENLAYOUT_SIZE_XLARGE; 212 } else if (longSizeDp >= 640 && shortSizeDp >= 480) { 213 // VGA or larger screens at medium density are the point 214 // at which we consider it to be a large screen. 215 screenLayoutSize = SCREENLAYOUT_SIZE_LARGE; 216 } else { 217 screenLayoutSize = SCREENLAYOUT_SIZE_NORMAL; 218 } 219 220 // If this screen is wider than normal HVGA, or taller 221 // than FWVGA, then for old apps we want to run in size 222 // compatibility mode. 223 if (shortSizeDp > 321 || longSizeDp > 570) { 224 screenLayoutCompatNeeded = true; 225 } else { 226 screenLayoutCompatNeeded = false; 227 } 228 229 // Is this a long screen? 230 if (((longSizeDp*3)/5) >= (shortSizeDp-1)) { 231 // Anything wider than WVGA (5:3) is considering to be long. 232 screenLayoutLong = true; 233 } else { 234 screenLayoutLong = false; 235 } 236 } 237 238 // Now reduce the last screenLayout to not be better than what we 239 // have found. 240 if (!screenLayoutLong) { 241 curLayout = (curLayout&~SCREENLAYOUT_LONG_MASK) | SCREENLAYOUT_LONG_NO; 242 } 243 if (screenLayoutCompatNeeded) { 244 curLayout |= Configuration.SCREENLAYOUT_COMPAT_NEEDED; 245 } 246 int curSize = curLayout&SCREENLAYOUT_SIZE_MASK; 247 if (screenLayoutSize < curSize) { 248 curLayout = (curLayout&~SCREENLAYOUT_SIZE_MASK) | screenLayoutSize; 249 } 250 return curLayout; 251 } 252 253 /** 254 * Check if the Configuration's current {@link #screenLayout} is at 255 * least the given size. 256 * 257 * @param size The desired size, either {@link #SCREENLAYOUT_SIZE_SMALL}, 258 * {@link #SCREENLAYOUT_SIZE_NORMAL}, {@link #SCREENLAYOUT_SIZE_LARGE}, or 259 * {@link #SCREENLAYOUT_SIZE_XLARGE}. 260 * @return Returns true if the current screen layout size is at least 261 * the given size. 262 */ 263 public boolean isLayoutSizeAtLeast(int size) { 264 int cur = screenLayout&SCREENLAYOUT_SIZE_MASK; 265 if (cur == SCREENLAYOUT_SIZE_UNDEFINED) return false; 266 return cur >= size; 267 } 268 269 /** Constant for {@link #touchscreen}: a value indicating that no value has been set. */ 270 public static final int TOUCHSCREEN_UNDEFINED = 0; 271 /** Constant for {@link #touchscreen}, value corresponding to the 272 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#TouchscreenQualifier">notouch</a> 273 * resource qualifier. */ 274 public static final int TOUCHSCREEN_NOTOUCH = 1; 275 /** @deprecated Not currently supported or used. */ 276 @Deprecated public static final int TOUCHSCREEN_STYLUS = 2; 277 /** Constant for {@link #touchscreen}, value corresponding to the 278 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#TouchscreenQualifier">finger</a> 279 * resource qualifier. */ 280 public static final int TOUCHSCREEN_FINGER = 3; 281 282 /** 283 * The kind of touch screen attached to the device. 284 * One of: {@link #TOUCHSCREEN_NOTOUCH}, {@link #TOUCHSCREEN_FINGER}. 285 */ 286 public int touchscreen; 287 288 /** Constant for {@link #keyboard}: a value indicating that no value has been set. */ 289 public static final int KEYBOARD_UNDEFINED = 0; 290 /** Constant for {@link #keyboard}, value corresponding to the 291 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ImeQualifier">nokeys</a> 292 * resource qualifier. */ 293 public static final int KEYBOARD_NOKEYS = 1; 294 /** Constant for {@link #keyboard}, value corresponding to the 295 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ImeQualifier">qwerty</a> 296 * resource qualifier. */ 297 public static final int KEYBOARD_QWERTY = 2; 298 /** Constant for {@link #keyboard}, value corresponding to the 299 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ImeQualifier">12key</a> 300 * resource qualifier. */ 301 public static final int KEYBOARD_12KEY = 3; 302 303 /** 304 * The kind of keyboard attached to the device. 305 * One of: {@link #KEYBOARD_NOKEYS}, {@link #KEYBOARD_QWERTY}, 306 * {@link #KEYBOARD_12KEY}. 307 */ 308 public int keyboard; 309 310 /** Constant for {@link #keyboardHidden}: a value indicating that no value has been set. */ 311 public static final int KEYBOARDHIDDEN_UNDEFINED = 0; 312 /** Constant for {@link #keyboardHidden}, value corresponding to the 313 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#KeyboardAvailQualifier">keysexposed</a> 314 * resource qualifier. */ 315 public static final int KEYBOARDHIDDEN_NO = 1; 316 /** Constant for {@link #keyboardHidden}, value corresponding to the 317 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#KeyboardAvailQualifier">keyshidden</a> 318 * resource qualifier. */ 319 public static final int KEYBOARDHIDDEN_YES = 2; 320 /** Constant matching actual resource implementation. {@hide} */ 321 public static final int KEYBOARDHIDDEN_SOFT = 3; 322 323 /** 324 * A flag indicating whether any keyboard is available. Unlike 325 * {@link #hardKeyboardHidden}, this also takes into account a soft 326 * keyboard, so if the hard keyboard is hidden but there is soft 327 * keyboard available, it will be set to NO. Value is one of: 328 * {@link #KEYBOARDHIDDEN_NO}, {@link #KEYBOARDHIDDEN_YES}. 329 */ 330 public int keyboardHidden; 331 332 /** Constant for {@link #hardKeyboardHidden}: a value indicating that no value has been set. */ 333 public static final int HARDKEYBOARDHIDDEN_UNDEFINED = 0; 334 /** Constant for {@link #hardKeyboardHidden}, value corresponding to the 335 * physical keyboard being exposed. */ 336 public static final int HARDKEYBOARDHIDDEN_NO = 1; 337 /** Constant for {@link #hardKeyboardHidden}, value corresponding to the 338 * physical keyboard being hidden. */ 339 public static final int HARDKEYBOARDHIDDEN_YES = 2; 340 341 /** 342 * A flag indicating whether the hard keyboard has been hidden. This will 343 * be set on a device with a mechanism to hide the keyboard from the 344 * user, when that mechanism is closed. One of: 345 * {@link #HARDKEYBOARDHIDDEN_NO}, {@link #HARDKEYBOARDHIDDEN_YES}. 346 */ 347 public int hardKeyboardHidden; 348 349 /** Constant for {@link #navigation}: a value indicating that no value has been set. */ 350 public static final int NAVIGATION_UNDEFINED = 0; 351 /** Constant for {@link #navigation}, value corresponding to the 352 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavigationQualifier">nonav</a> 353 * resource qualifier. */ 354 public static final int NAVIGATION_NONAV = 1; 355 /** Constant for {@link #navigation}, value corresponding to the 356 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavigationQualifier">dpad</a> 357 * resource qualifier. */ 358 public static final int NAVIGATION_DPAD = 2; 359 /** Constant for {@link #navigation}, value corresponding to the 360 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavigationQualifier">trackball</a> 361 * resource qualifier. */ 362 public static final int NAVIGATION_TRACKBALL = 3; 363 /** Constant for {@link #navigation}, value corresponding to the 364 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavigationQualifier">wheel</a> 365 * resource qualifier. */ 366 public static final int NAVIGATION_WHEEL = 4; 367 368 /** 369 * The kind of navigation method available on the device. 370 * One of: {@link #NAVIGATION_NONAV}, {@link #NAVIGATION_DPAD}, 371 * {@link #NAVIGATION_TRACKBALL}, {@link #NAVIGATION_WHEEL}. 372 */ 373 public int navigation; 374 375 /** Constant for {@link #navigationHidden}: a value indicating that no value has been set. */ 376 public static final int NAVIGATIONHIDDEN_UNDEFINED = 0; 377 /** Constant for {@link #navigationHidden}, value corresponding to the 378 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavAvailQualifier">navexposed</a> 379 * resource qualifier. */ 380 public static final int NAVIGATIONHIDDEN_NO = 1; 381 /** Constant for {@link #navigationHidden}, value corresponding to the 382 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavAvailQualifier">navhidden</a> 383 * resource qualifier. */ 384 public static final int NAVIGATIONHIDDEN_YES = 2; 385 386 /** 387 * A flag indicating whether any 5-way or DPAD navigation available. 388 * This will be set on a device with a mechanism to hide the navigation 389 * controls from the user, when that mechanism is closed. One of: 390 * {@link #NAVIGATIONHIDDEN_NO}, {@link #NAVIGATIONHIDDEN_YES}. 391 */ 392 public int navigationHidden; 393 394 /** Constant for {@link #orientation}: a value indicating that no value has been set. */ 395 public static final int ORIENTATION_UNDEFINED = 0; 396 /** Constant for {@link #orientation}, value corresponding to the 397 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#OrientationQualifier">port</a> 398 * resource qualifier. */ 399 public static final int ORIENTATION_PORTRAIT = 1; 400 /** Constant for {@link #orientation}, value corresponding to the 401 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#OrientationQualifier">land</a> 402 * resource qualifier. */ 403 public static final int ORIENTATION_LANDSCAPE = 2; 404 /** @deprecated Not currently supported or used. */ 405 @Deprecated public static final int ORIENTATION_SQUARE = 3; 406 407 /** 408 * Overall orientation of the screen. May be one of 409 * {@link #ORIENTATION_LANDSCAPE}, {@link #ORIENTATION_PORTRAIT}. 410 */ 411 public int orientation; 412 413 /** Constant for {@link #uiMode}: bits that encode the mode type. */ 414 public static final int UI_MODE_TYPE_MASK = 0x0f; 415 /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} 416 * value indicating that no mode type has been set. */ 417 public static final int UI_MODE_TYPE_UNDEFINED = 0x00; 418 /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} 419 * value that corresponds to 420 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">no 421 * UI mode</a> resource qualifier specified. */ 422 public static final int UI_MODE_TYPE_NORMAL = 0x01; 423 /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} 424 * value that corresponds to the 425 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">desk</a> 426 * resource qualifier. */ 427 public static final int UI_MODE_TYPE_DESK = 0x02; 428 /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} 429 * value that corresponds to the 430 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">car</a> 431 * resource qualifier. */ 432 public static final int UI_MODE_TYPE_CAR = 0x03; 433 /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} 434 * value that corresponds to the 435 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">television</a> 436 * resource qualifier. */ 437 public static final int UI_MODE_TYPE_TELEVISION = 0x04; 438 /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} 439 * value that corresponds to the 440 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">appliance</a> 441 * resource qualifier. */ 442 public static final int UI_MODE_TYPE_APPLIANCE = 0x05; 443 444 /** Constant for {@link #uiMode}: bits that encode the night mode. */ 445 public static final int UI_MODE_NIGHT_MASK = 0x30; 446 /** Constant for {@link #uiMode}: a {@link #UI_MODE_NIGHT_MASK} 447 * value indicating that no mode type has been set. */ 448 public static final int UI_MODE_NIGHT_UNDEFINED = 0x00; 449 /** Constant for {@link #uiMode}: a {@link #UI_MODE_NIGHT_MASK} 450 * value that corresponds to the 451 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NightQualifier">notnight</a> 452 * resource qualifier. */ 453 public static final int UI_MODE_NIGHT_NO = 0x10; 454 /** Constant for {@link #uiMode}: a {@link #UI_MODE_NIGHT_MASK} 455 * value that corresponds to the 456 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NightQualifier">night</a> 457 * resource qualifier. */ 458 public static final int UI_MODE_NIGHT_YES = 0x20; 459 460 /** 461 * Bit mask of the ui mode. Currently there are two fields: 462 * <p>The {@link #UI_MODE_TYPE_MASK} bits define the overall ui mode of the 463 * device. They may be one of {@link #UI_MODE_TYPE_UNDEFINED}, 464 * {@link #UI_MODE_TYPE_NORMAL}, {@link #UI_MODE_TYPE_DESK}, 465 * {@link #UI_MODE_TYPE_CAR}, {@link #UI_MODE_TYPE_TELEVISION}, or 466 * {@link #UI_MODE_TYPE_APPLIANCE}. 467 * 468 * <p>The {@link #UI_MODE_NIGHT_MASK} defines whether the screen 469 * is in a special mode. They may be one of {@link #UI_MODE_NIGHT_UNDEFINED}, 470 * {@link #UI_MODE_NIGHT_NO} or {@link #UI_MODE_NIGHT_YES}. 471 */ 472 public int uiMode; 473 474 /** 475 * Default value for {@link #screenWidthDp} indicating that no width 476 * has been specified. 477 */ 478 public static final int SCREEN_WIDTH_DP_UNDEFINED = 0; 479 480 /** 481 * The current width of the available screen space, in dp units, 482 * corresponding to 483 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenWidthQualifier">screen 484 * width</a> resource qualifier. Set to 485 * {@link #SCREEN_WIDTH_DP_UNDEFINED} if no width is specified. 486 */ 487 public int screenWidthDp; 488 489 /** 490 * Default value for {@link #screenHeightDp} indicating that no width 491 * has been specified. 492 */ 493 public static final int SCREEN_HEIGHT_DP_UNDEFINED = 0; 494 495 /** 496 * The current height of the available screen space, in dp units, 497 * corresponding to 498 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenHeightQualifier">screen 499 * height</a> resource qualifier. Set to 500 * {@link #SCREEN_HEIGHT_DP_UNDEFINED} if no height is specified. 501 */ 502 public int screenHeightDp; 503 504 /** 505 * Default value for {@link #smallestScreenWidthDp} indicating that no width 506 * has been specified. 507 */ 508 public static final int SMALLEST_SCREEN_WIDTH_DP_UNDEFINED = 0; 509 510 /** 511 * The smallest screen size an application will see in normal operation, 512 * corresponding to 513 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#SmallestScreenWidthQualifier">smallest 514 * screen width</a> resource qualifier. 515 * This is the smallest value of both screenWidthDp and screenHeightDp 516 * in both portrait and landscape. Set to 517 * {@link #SMALLEST_SCREEN_WIDTH_DP_UNDEFINED} if no width is specified. 518 */ 519 public int smallestScreenWidthDp; 520 521 /** 522 * Default value for {@link #densityDpi} indicating that no width 523 * has been specified. 524 */ 525 public static final int DENSITY_DPI_UNDEFINED = 0; 526 527 /** 528 * The target screen density being rendered to, 529 * corresponding to 530 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#DensityQualifier">density</a> 531 * resource qualifier. Set to 532 * {@link #DENSITY_DPI_UNDEFINED} if no density is specified. 533 */ 534 public int densityDpi; 535 536 /** @hide Hack to get this information from WM to app running in compat mode. */ 537 public int compatScreenWidthDp; 538 /** @hide Hack to get this information from WM to app running in compat mode. */ 539 public int compatScreenHeightDp; 540 /** @hide Hack to get this information from WM to app running in compat mode. */ 541 public int compatSmallestScreenWidthDp; 542 543 /** 544 * @hide Internal book-keeping. 545 */ 546 public int seq; 547 548 /** 549 * Construct an invalid Configuration. You must call {@link #setToDefaults} 550 * for this object to be valid. {@more} 551 */ 552 public Configuration() { 553 setToDefaults(); 554 } 555 556 /** 557 * Makes a deep copy suitable for modification. 558 */ 559 public Configuration(Configuration o) { 560 setTo(o); 561 } 562 563 public void setTo(Configuration o) { 564 fontScale = o.fontScale; 565 mcc = o.mcc; 566 mnc = o.mnc; 567 if (o.locale != null) { 568 locale = (Locale) o.locale.clone(); 569 } 570 userSetLocale = o.userSetLocale; 571 touchscreen = o.touchscreen; 572 keyboard = o.keyboard; 573 keyboardHidden = o.keyboardHidden; 574 hardKeyboardHidden = o.hardKeyboardHidden; 575 navigation = o.navigation; 576 navigationHidden = o.navigationHidden; 577 orientation = o.orientation; 578 screenLayout = o.screenLayout; 579 uiMode = o.uiMode; 580 screenWidthDp = o.screenWidthDp; 581 screenHeightDp = o.screenHeightDp; 582 smallestScreenWidthDp = o.smallestScreenWidthDp; 583 densityDpi = o.densityDpi; 584 compatScreenWidthDp = o.compatScreenWidthDp; 585 compatScreenHeightDp = o.compatScreenHeightDp; 586 compatSmallestScreenWidthDp = o.compatSmallestScreenWidthDp; 587 seq = o.seq; 588 } 589 590 public String toString() { 591 StringBuilder sb = new StringBuilder(128); 592 sb.append("{"); 593 sb.append(fontScale); 594 sb.append(" "); 595 if (mcc != 0) { 596 sb.append(mcc); 597 sb.append("mcc"); 598 } else { 599 sb.append("?mcc"); 600 } 601 if (mnc != 0) { 602 sb.append(mnc); 603 sb.append("mnc"); 604 } else { 605 sb.append("?mnc"); 606 } 607 if (locale != null) { 608 sb.append(" "); 609 sb.append(locale); 610 } else { 611 sb.append(" ?locale"); 612 } 613 int layoutDir = (screenLayout&SCREENLAYOUT_LAYOUTDIR_MASK); 614 switch (layoutDir) { 615 case SCREENLAYOUT_LAYOUTDIR_UNDEFINED: sb.append(" ?layoutDir"); break; 616 case SCREENLAYOUT_LAYOUTDIR_LTR: sb.append(" ldltr"); break; 617 case SCREENLAYOUT_LAYOUTDIR_RTL: sb.append(" ldrtl"); break; 618 default: sb.append(" layoutDir="); 619 sb.append(layoutDir >> SCREENLAYOUT_LAYOUTDIR_SHIFT); break; 620 } 621 if (smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED) { 622 sb.append(" sw"); sb.append(smallestScreenWidthDp); sb.append("dp"); 623 } else { 624 sb.append(" ?swdp"); 625 } 626 if (screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED) { 627 sb.append(" w"); sb.append(screenWidthDp); sb.append("dp"); 628 } else { 629 sb.append(" ?wdp"); 630 } 631 if (screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED) { 632 sb.append(" h"); sb.append(screenHeightDp); sb.append("dp"); 633 } else { 634 sb.append(" ?hdp"); 635 } 636 if (densityDpi != DENSITY_DPI_UNDEFINED) { 637 sb.append(" "); sb.append(densityDpi); sb.append("dpi"); 638 } else { 639 sb.append(" ?density"); 640 } 641 switch ((screenLayout&SCREENLAYOUT_SIZE_MASK)) { 642 case SCREENLAYOUT_SIZE_UNDEFINED: sb.append(" ?lsize"); break; 643 case SCREENLAYOUT_SIZE_SMALL: sb.append(" smll"); break; 644 case SCREENLAYOUT_SIZE_NORMAL: sb.append(" nrml"); break; 645 case SCREENLAYOUT_SIZE_LARGE: sb.append(" lrg"); break; 646 case SCREENLAYOUT_SIZE_XLARGE: sb.append(" xlrg"); break; 647 default: sb.append(" layoutSize="); 648 sb.append(screenLayout&SCREENLAYOUT_SIZE_MASK); break; 649 } 650 switch ((screenLayout&SCREENLAYOUT_LONG_MASK)) { 651 case SCREENLAYOUT_LONG_UNDEFINED: sb.append(" ?long"); break; 652 case SCREENLAYOUT_LONG_NO: /* not-long is not interesting to print */ break; 653 case SCREENLAYOUT_LONG_YES: sb.append(" long"); break; 654 default: sb.append(" layoutLong="); 655 sb.append(screenLayout&SCREENLAYOUT_LONG_MASK); break; 656 } 657 switch (orientation) { 658 case ORIENTATION_UNDEFINED: sb.append(" ?orien"); break; 659 case ORIENTATION_LANDSCAPE: sb.append(" land"); break; 660 case ORIENTATION_PORTRAIT: sb.append(" port"); break; 661 default: sb.append(" orien="); sb.append(orientation); break; 662 } 663 switch ((uiMode&UI_MODE_TYPE_MASK)) { 664 case UI_MODE_TYPE_UNDEFINED: sb.append(" ?uimode"); break; 665 case UI_MODE_TYPE_NORMAL: /* normal is not interesting to print */ break; 666 case UI_MODE_TYPE_DESK: sb.append(" desk"); break; 667 case UI_MODE_TYPE_CAR: sb.append(" car"); break; 668 case UI_MODE_TYPE_TELEVISION: sb.append(" television"); break; 669 case UI_MODE_TYPE_APPLIANCE: sb.append(" appliance"); break; 670 default: sb.append(" uimode="); sb.append(uiMode&UI_MODE_TYPE_MASK); break; 671 } 672 switch ((uiMode&UI_MODE_NIGHT_MASK)) { 673 case UI_MODE_NIGHT_UNDEFINED: sb.append(" ?night"); break; 674 case UI_MODE_NIGHT_NO: /* not-night is not interesting to print */ break; 675 case UI_MODE_NIGHT_YES: sb.append(" night"); break; 676 default: sb.append(" night="); sb.append(uiMode&UI_MODE_NIGHT_MASK); break; 677 } 678 switch (touchscreen) { 679 case TOUCHSCREEN_UNDEFINED: sb.append(" ?touch"); break; 680 case TOUCHSCREEN_NOTOUCH: sb.append(" -touch"); break; 681 case TOUCHSCREEN_STYLUS: sb.append(" stylus"); break; 682 case TOUCHSCREEN_FINGER: sb.append(" finger"); break; 683 default: sb.append(" touch="); sb.append(touchscreen); break; 684 } 685 switch (keyboard) { 686 case KEYBOARD_UNDEFINED: sb.append(" ?keyb"); break; 687 case KEYBOARD_NOKEYS: sb.append(" -keyb"); break; 688 case KEYBOARD_QWERTY: sb.append(" qwerty"); break; 689 case KEYBOARD_12KEY: sb.append(" 12key"); break; 690 default: sb.append(" keys="); sb.append(keyboard); break; 691 } 692 switch (keyboardHidden) { 693 case KEYBOARDHIDDEN_UNDEFINED: sb.append("/?"); break; 694 case KEYBOARDHIDDEN_NO: sb.append("/v"); break; 695 case KEYBOARDHIDDEN_YES: sb.append("/h"); break; 696 case KEYBOARDHIDDEN_SOFT: sb.append("/s"); break; 697 default: sb.append("/"); sb.append(keyboardHidden); break; 698 } 699 switch (hardKeyboardHidden) { 700 case HARDKEYBOARDHIDDEN_UNDEFINED: sb.append("/?"); break; 701 case HARDKEYBOARDHIDDEN_NO: sb.append("/v"); break; 702 case HARDKEYBOARDHIDDEN_YES: sb.append("/h"); break; 703 default: sb.append("/"); sb.append(hardKeyboardHidden); break; 704 } 705 switch (navigation) { 706 case NAVIGATION_UNDEFINED: sb.append(" ?nav"); break; 707 case NAVIGATION_NONAV: sb.append(" -nav"); break; 708 case NAVIGATION_DPAD: sb.append(" dpad"); break; 709 case NAVIGATION_TRACKBALL: sb.append(" tball"); break; 710 case NAVIGATION_WHEEL: sb.append(" wheel"); break; 711 default: sb.append(" nav="); sb.append(navigation); break; 712 } 713 switch (navigationHidden) { 714 case NAVIGATIONHIDDEN_UNDEFINED: sb.append("/?"); break; 715 case NAVIGATIONHIDDEN_NO: sb.append("/v"); break; 716 case NAVIGATIONHIDDEN_YES: sb.append("/h"); break; 717 default: sb.append("/"); sb.append(navigationHidden); break; 718 } 719 if (seq != 0) { 720 sb.append(" s."); 721 sb.append(seq); 722 } 723 sb.append('}'); 724 return sb.toString(); 725 } 726 727 /** 728 * Set this object to the system defaults. 729 */ 730 public void setToDefaults() { 731 fontScale = 1; 732 mcc = mnc = 0; 733 locale = null; 734 userSetLocale = false; 735 touchscreen = TOUCHSCREEN_UNDEFINED; 736 keyboard = KEYBOARD_UNDEFINED; 737 keyboardHidden = KEYBOARDHIDDEN_UNDEFINED; 738 hardKeyboardHidden = HARDKEYBOARDHIDDEN_UNDEFINED; 739 navigation = NAVIGATION_UNDEFINED; 740 navigationHidden = NAVIGATIONHIDDEN_UNDEFINED; 741 orientation = ORIENTATION_UNDEFINED; 742 screenLayout = SCREENLAYOUT_UNDEFINED; 743 uiMode = UI_MODE_TYPE_UNDEFINED; 744 screenWidthDp = compatScreenWidthDp = SCREEN_WIDTH_DP_UNDEFINED; 745 screenHeightDp = compatScreenHeightDp = SCREEN_HEIGHT_DP_UNDEFINED; 746 smallestScreenWidthDp = compatSmallestScreenWidthDp = SMALLEST_SCREEN_WIDTH_DP_UNDEFINED; 747 densityDpi = DENSITY_DPI_UNDEFINED; 748 seq = 0; 749 } 750 751 /** {@hide} */ 752 @Deprecated public void makeDefault() { 753 setToDefaults(); 754 } 755 756 /** 757 * Copy the fields from delta into this Configuration object, keeping 758 * track of which ones have changed. Any undefined fields in 759 * <var>delta</var> are ignored and not copied in to the current 760 * Configuration. 761 * @return Returns a bit mask of the changed fields, as per 762 * {@link #diff}. 763 */ 764 public int updateFrom(Configuration delta) { 765 int changed = 0; 766 if (delta.fontScale > 0 && fontScale != delta.fontScale) { 767 changed |= ActivityInfo.CONFIG_FONT_SCALE; 768 fontScale = delta.fontScale; 769 } 770 if (delta.mcc != 0 && mcc != delta.mcc) { 771 changed |= ActivityInfo.CONFIG_MCC; 772 mcc = delta.mcc; 773 } 774 if (delta.mnc != 0 && mnc != delta.mnc) { 775 changed |= ActivityInfo.CONFIG_MNC; 776 mnc = delta.mnc; 777 } 778 if (delta.locale != null 779 && (locale == null || !locale.equals(delta.locale))) { 780 changed |= ActivityInfo.CONFIG_LOCALE; 781 locale = delta.locale != null 782 ? (Locale) delta.locale.clone() : null; 783 // If locale has changed, then layout direction is also changed ... 784 changed |= ActivityInfo.CONFIG_LAYOUT_DIRECTION; 785 // ... and we need to update the layout direction (represented by the first 786 // 2 most significant bits in screenLayout). 787 setLayoutDirection(locale); 788 } 789 if (delta.screenLayout != 0 && screenLayout != delta.screenLayout) { 790 changed |= ActivityInfo.CONFIG_LAYOUT_DIRECTION; 791 setLayoutDirection(locale); 792 } 793 if (delta.userSetLocale && (!userSetLocale || ((changed & ActivityInfo.CONFIG_LOCALE) != 0))) 794 { 795 changed |= ActivityInfo.CONFIG_LOCALE; 796 userSetLocale = true; 797 } 798 if (delta.touchscreen != TOUCHSCREEN_UNDEFINED 799 && touchscreen != delta.touchscreen) { 800 changed |= ActivityInfo.CONFIG_TOUCHSCREEN; 801 touchscreen = delta.touchscreen; 802 } 803 if (delta.keyboard != KEYBOARD_UNDEFINED 804 && keyboard != delta.keyboard) { 805 changed |= ActivityInfo.CONFIG_KEYBOARD; 806 keyboard = delta.keyboard; 807 } 808 if (delta.keyboardHidden != KEYBOARDHIDDEN_UNDEFINED 809 && keyboardHidden != delta.keyboardHidden) { 810 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 811 keyboardHidden = delta.keyboardHidden; 812 } 813 if (delta.hardKeyboardHidden != HARDKEYBOARDHIDDEN_UNDEFINED 814 && hardKeyboardHidden != delta.hardKeyboardHidden) { 815 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 816 hardKeyboardHidden = delta.hardKeyboardHidden; 817 } 818 if (delta.navigation != NAVIGATION_UNDEFINED 819 && navigation != delta.navigation) { 820 changed |= ActivityInfo.CONFIG_NAVIGATION; 821 navigation = delta.navigation; 822 } 823 if (delta.navigationHidden != NAVIGATIONHIDDEN_UNDEFINED 824 && navigationHidden != delta.navigationHidden) { 825 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 826 navigationHidden = delta.navigationHidden; 827 } 828 if (delta.orientation != ORIENTATION_UNDEFINED 829 && orientation != delta.orientation) { 830 changed |= ActivityInfo.CONFIG_ORIENTATION; 831 orientation = delta.orientation; 832 } 833 if (getScreenLayoutNoDirection(delta.screenLayout) != 834 (SCREENLAYOUT_SIZE_UNDEFINED | SCREENLAYOUT_LONG_UNDEFINED) 835 && (getScreenLayoutNoDirection(screenLayout) != 836 getScreenLayoutNoDirection(delta.screenLayout))) { 837 changed |= ActivityInfo.CONFIG_SCREEN_LAYOUT; 838 // We need to preserve the previous layout dir bits if they were defined 839 if ((delta.screenLayout&SCREENLAYOUT_LAYOUTDIR_MASK) == 0) { 840 screenLayout = (screenLayout&SCREENLAYOUT_LAYOUTDIR_MASK)|delta.screenLayout; 841 } else { 842 screenLayout = delta.screenLayout; 843 } 844 } 845 if (delta.uiMode != (UI_MODE_TYPE_UNDEFINED|UI_MODE_NIGHT_UNDEFINED) 846 && uiMode != delta.uiMode) { 847 changed |= ActivityInfo.CONFIG_UI_MODE; 848 if ((delta.uiMode&UI_MODE_TYPE_MASK) != UI_MODE_TYPE_UNDEFINED) { 849 uiMode = (uiMode&~UI_MODE_TYPE_MASK) 850 | (delta.uiMode&UI_MODE_TYPE_MASK); 851 } 852 if ((delta.uiMode&UI_MODE_NIGHT_MASK) != UI_MODE_NIGHT_UNDEFINED) { 853 uiMode = (uiMode&~UI_MODE_NIGHT_MASK) 854 | (delta.uiMode&UI_MODE_NIGHT_MASK); 855 } 856 } 857 if (delta.screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED 858 && screenWidthDp != delta.screenWidthDp) { 859 changed |= ActivityInfo.CONFIG_SCREEN_SIZE; 860 screenWidthDp = delta.screenWidthDp; 861 } 862 if (delta.screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED 863 && screenHeightDp != delta.screenHeightDp) { 864 changed |= ActivityInfo.CONFIG_SCREEN_SIZE; 865 screenHeightDp = delta.screenHeightDp; 866 } 867 if (delta.smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED 868 && smallestScreenWidthDp != delta.smallestScreenWidthDp) { 869 changed |= ActivityInfo.CONFIG_SMALLEST_SCREEN_SIZE; 870 smallestScreenWidthDp = delta.smallestScreenWidthDp; 871 } 872 if (delta.densityDpi != DENSITY_DPI_UNDEFINED && 873 densityDpi != delta.densityDpi) { 874 changed |= ActivityInfo.CONFIG_DENSITY; 875 densityDpi = delta.densityDpi; 876 } 877 if (delta.compatScreenWidthDp != SCREEN_WIDTH_DP_UNDEFINED) { 878 compatScreenWidthDp = delta.compatScreenWidthDp; 879 } 880 if (delta.compatScreenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED) { 881 compatScreenHeightDp = delta.compatScreenHeightDp; 882 } 883 if (delta.compatSmallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED) { 884 compatSmallestScreenWidthDp = delta.compatSmallestScreenWidthDp; 885 } 886 if (delta.seq != 0) { 887 seq = delta.seq; 888 } 889 890 return changed; 891 } 892 893 /** 894 * Return a bit mask of the differences between this Configuration 895 * object and the given one. Does not change the values of either. Any 896 * undefined fields in <var>delta</var> are ignored. 897 * @return Returns a bit mask indicating which configuration 898 * values has changed, containing any combination of 899 * {@link android.content.pm.ActivityInfo#CONFIG_FONT_SCALE 900 * PackageManager.ActivityInfo.CONFIG_FONT_SCALE}, 901 * {@link android.content.pm.ActivityInfo#CONFIG_MCC 902 * PackageManager.ActivityInfo.CONFIG_MCC}, 903 * {@link android.content.pm.ActivityInfo#CONFIG_MNC 904 * PackageManager.ActivityInfo.CONFIG_MNC}, 905 * {@link android.content.pm.ActivityInfo#CONFIG_LOCALE 906 * PackageManager.ActivityInfo.CONFIG_LOCALE}, 907 * {@link android.content.pm.ActivityInfo#CONFIG_TOUCHSCREEN 908 * PackageManager.ActivityInfo.CONFIG_TOUCHSCREEN}, 909 * {@link android.content.pm.ActivityInfo#CONFIG_KEYBOARD 910 * PackageManager.ActivityInfo.CONFIG_KEYBOARD}, 911 * {@link android.content.pm.ActivityInfo#CONFIG_NAVIGATION 912 * PackageManager.ActivityInfo.CONFIG_NAVIGATION}, 913 * {@link android.content.pm.ActivityInfo#CONFIG_ORIENTATION 914 * PackageManager.ActivityInfo.CONFIG_ORIENTATION}, 915 * {@link android.content.pm.ActivityInfo#CONFIG_SCREEN_LAYOUT 916 * PackageManager.ActivityInfo.CONFIG_SCREEN_LAYOUT}, or 917 * {@link android.content.pm.ActivityInfo#CONFIG_SCREEN_SIZE 918 * PackageManager.ActivityInfo.CONFIG_SCREEN_SIZE}, or 919 * {@link android.content.pm.ActivityInfo#CONFIG_SMALLEST_SCREEN_SIZE 920 * PackageManager.ActivityInfo.CONFIG_SMALLEST_SCREEN_SIZE}. 921 * {@link android.content.pm.ActivityInfo#CONFIG_LAYOUT_DIRECTION 922 * PackageManager.ActivityInfo.CONFIG_LAYOUT_DIRECTION}. 923 */ 924 public int diff(Configuration delta) { 925 int changed = 0; 926 if (delta.fontScale > 0 && fontScale != delta.fontScale) { 927 changed |= ActivityInfo.CONFIG_FONT_SCALE; 928 } 929 if (delta.mcc != 0 && mcc != delta.mcc) { 930 changed |= ActivityInfo.CONFIG_MCC; 931 } 932 if (delta.mnc != 0 && mnc != delta.mnc) { 933 changed |= ActivityInfo.CONFIG_MNC; 934 } 935 if (delta.locale != null 936 && (locale == null || !locale.equals(delta.locale))) { 937 changed |= ActivityInfo.CONFIG_LOCALE; 938 changed |= ActivityInfo.CONFIG_LAYOUT_DIRECTION; 939 } 940 if (delta.screenLayout != 0 && screenLayout != delta.screenLayout) { 941 changed |= ActivityInfo.CONFIG_LAYOUT_DIRECTION; 942 } 943 if (delta.touchscreen != TOUCHSCREEN_UNDEFINED 944 && touchscreen != delta.touchscreen) { 945 changed |= ActivityInfo.CONFIG_TOUCHSCREEN; 946 } 947 if (delta.keyboard != KEYBOARD_UNDEFINED 948 && keyboard != delta.keyboard) { 949 changed |= ActivityInfo.CONFIG_KEYBOARD; 950 } 951 if (delta.keyboardHidden != KEYBOARDHIDDEN_UNDEFINED 952 && keyboardHidden != delta.keyboardHidden) { 953 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 954 } 955 if (delta.hardKeyboardHidden != HARDKEYBOARDHIDDEN_UNDEFINED 956 && hardKeyboardHidden != delta.hardKeyboardHidden) { 957 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 958 } 959 if (delta.navigation != NAVIGATION_UNDEFINED 960 && navigation != delta.navigation) { 961 changed |= ActivityInfo.CONFIG_NAVIGATION; 962 } 963 if (delta.navigationHidden != NAVIGATIONHIDDEN_UNDEFINED 964 && navigationHidden != delta.navigationHidden) { 965 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 966 } 967 if (delta.orientation != ORIENTATION_UNDEFINED 968 && orientation != delta.orientation) { 969 changed |= ActivityInfo.CONFIG_ORIENTATION; 970 } 971 if (getScreenLayoutNoDirection(delta.screenLayout) != 972 (SCREENLAYOUT_SIZE_UNDEFINED | SCREENLAYOUT_LONG_UNDEFINED) 973 && getScreenLayoutNoDirection(screenLayout) != 974 getScreenLayoutNoDirection(delta.screenLayout)) { 975 changed |= ActivityInfo.CONFIG_SCREEN_LAYOUT; 976 } 977 if (delta.uiMode != (UI_MODE_TYPE_UNDEFINED|UI_MODE_NIGHT_UNDEFINED) 978 && uiMode != delta.uiMode) { 979 changed |= ActivityInfo.CONFIG_UI_MODE; 980 } 981 if (delta.screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED 982 && screenWidthDp != delta.screenWidthDp) { 983 changed |= ActivityInfo.CONFIG_SCREEN_SIZE; 984 } 985 if (delta.screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED 986 && screenHeightDp != delta.screenHeightDp) { 987 changed |= ActivityInfo.CONFIG_SCREEN_SIZE; 988 } 989 if (delta.smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED 990 && smallestScreenWidthDp != delta.smallestScreenWidthDp) { 991 changed |= ActivityInfo.CONFIG_SMALLEST_SCREEN_SIZE; 992 } 993 if (delta.densityDpi != DENSITY_DPI_UNDEFINED 994 && densityDpi != delta.densityDpi) { 995 changed |= ActivityInfo.CONFIG_DENSITY; 996 } 997 998 return changed; 999 } 1000 1001 /** 1002 * Determine if a new resource needs to be loaded from the bit set of 1003 * configuration changes returned by {@link #updateFrom(Configuration)}. 1004 * 1005 * @param configChanges The mask of changes configurations as returned by 1006 * {@link #updateFrom(Configuration)}. 1007 * @param interestingChanges The configuration changes that the resource 1008 * can handled, as given in {@link android.util.TypedValue#changingConfigurations}. 1009 * 1010 * @return Return true if the resource needs to be loaded, else false. 1011 */ 1012 public static boolean needNewResources(int configChanges, int interestingChanges) { 1013 return (configChanges & (interestingChanges|ActivityInfo.CONFIG_FONT_SCALE)) != 0; 1014 } 1015 1016 /** 1017 * @hide Return true if the sequence of 'other' is better than this. Assumes 1018 * that 'this' is your current sequence and 'other' is a new one you have 1019 * received some how and want to compare with what you have. 1020 */ 1021 public boolean isOtherSeqNewer(Configuration other) { 1022 if (other == null) { 1023 // Sanity check. 1024 return false; 1025 } 1026 if (other.seq == 0) { 1027 // If the other sequence is not specified, then we must assume 1028 // it is newer since we don't know any better. 1029 return true; 1030 } 1031 if (seq == 0) { 1032 // If this sequence is not specified, then we also consider the 1033 // other is better. Yes we have a preference for other. Sue us. 1034 return true; 1035 } 1036 int diff = other.seq - seq; 1037 if (diff > 0x10000) { 1038 // If there has been a sufficiently large jump, assume the 1039 // sequence has wrapped around. 1040 return false; 1041 } 1042 return diff > 0; 1043 } 1044 1045 /** 1046 * Parcelable methods 1047 */ 1048 public int describeContents() { 1049 return 0; 1050 } 1051 1052 public void writeToParcel(Parcel dest, int flags) { 1053 dest.writeFloat(fontScale); 1054 dest.writeInt(mcc); 1055 dest.writeInt(mnc); 1056 if (locale == null) { 1057 dest.writeInt(0); 1058 } else { 1059 dest.writeInt(1); 1060 dest.writeString(locale.getLanguage()); 1061 dest.writeString(locale.getCountry()); 1062 dest.writeString(locale.getVariant()); 1063 } 1064 if(userSetLocale) { 1065 dest.writeInt(1); 1066 } else { 1067 dest.writeInt(0); 1068 } 1069 dest.writeInt(touchscreen); 1070 dest.writeInt(keyboard); 1071 dest.writeInt(keyboardHidden); 1072 dest.writeInt(hardKeyboardHidden); 1073 dest.writeInt(navigation); 1074 dest.writeInt(navigationHidden); 1075 dest.writeInt(orientation); 1076 dest.writeInt(screenLayout); 1077 dest.writeInt(uiMode); 1078 dest.writeInt(screenWidthDp); 1079 dest.writeInt(screenHeightDp); 1080 dest.writeInt(smallestScreenWidthDp); 1081 dest.writeInt(densityDpi); 1082 dest.writeInt(compatScreenWidthDp); 1083 dest.writeInt(compatScreenHeightDp); 1084 dest.writeInt(compatSmallestScreenWidthDp); 1085 dest.writeInt(seq); 1086 } 1087 1088 public void readFromParcel(Parcel source) { 1089 fontScale = source.readFloat(); 1090 mcc = source.readInt(); 1091 mnc = source.readInt(); 1092 if (source.readInt() != 0) { 1093 locale = new Locale(source.readString(), source.readString(), 1094 source.readString()); 1095 } 1096 userSetLocale = (source.readInt()==1); 1097 touchscreen = source.readInt(); 1098 keyboard = source.readInt(); 1099 keyboardHidden = source.readInt(); 1100 hardKeyboardHidden = source.readInt(); 1101 navigation = source.readInt(); 1102 navigationHidden = source.readInt(); 1103 orientation = source.readInt(); 1104 screenLayout = source.readInt(); 1105 uiMode = source.readInt(); 1106 screenWidthDp = source.readInt(); 1107 screenHeightDp = source.readInt(); 1108 smallestScreenWidthDp = source.readInt(); 1109 densityDpi = source.readInt(); 1110 compatScreenWidthDp = source.readInt(); 1111 compatScreenHeightDp = source.readInt(); 1112 compatSmallestScreenWidthDp = source.readInt(); 1113 seq = source.readInt(); 1114 } 1115 1116 public static final Parcelable.Creator<Configuration> CREATOR 1117 = new Parcelable.Creator<Configuration>() { 1118 public Configuration createFromParcel(Parcel source) { 1119 return new Configuration(source); 1120 } 1121 1122 public Configuration[] newArray(int size) { 1123 return new Configuration[size]; 1124 } 1125 }; 1126 1127 /** 1128 * Construct this Configuration object, reading from the Parcel. 1129 */ 1130 private Configuration(Parcel source) { 1131 readFromParcel(source); 1132 } 1133 1134 public int compareTo(Configuration that) { 1135 int n; 1136 float a = this.fontScale; 1137 float b = that.fontScale; 1138 if (a < b) return -1; 1139 if (a > b) return 1; 1140 n = this.mcc - that.mcc; 1141 if (n != 0) return n; 1142 n = this.mnc - that.mnc; 1143 if (n != 0) return n; 1144 if (this.locale == null) { 1145 if (that.locale != null) return 1; 1146 } else if (that.locale == null) { 1147 return -1; 1148 } else { 1149 n = this.locale.getLanguage().compareTo(that.locale.getLanguage()); 1150 if (n != 0) return n; 1151 n = this.locale.getCountry().compareTo(that.locale.getCountry()); 1152 if (n != 0) return n; 1153 n = this.locale.getVariant().compareTo(that.locale.getVariant()); 1154 if (n != 0) return n; 1155 } 1156 n = this.touchscreen - that.touchscreen; 1157 if (n != 0) return n; 1158 n = this.keyboard - that.keyboard; 1159 if (n != 0) return n; 1160 n = this.keyboardHidden - that.keyboardHidden; 1161 if (n != 0) return n; 1162 n = this.hardKeyboardHidden - that.hardKeyboardHidden; 1163 if (n != 0) return n; 1164 n = this.navigation - that.navigation; 1165 if (n != 0) return n; 1166 n = this.navigationHidden - that.navigationHidden; 1167 if (n != 0) return n; 1168 n = this.orientation - that.orientation; 1169 if (n != 0) return n; 1170 n = this.screenLayout - that.screenLayout; 1171 if (n != 0) return n; 1172 n = this.uiMode - that.uiMode; 1173 if (n != 0) return n; 1174 n = this.screenWidthDp - that.screenWidthDp; 1175 if (n != 0) return n; 1176 n = this.screenHeightDp - that.screenHeightDp; 1177 if (n != 0) return n; 1178 n = this.smallestScreenWidthDp - that.smallestScreenWidthDp; 1179 if (n != 0) return n; 1180 n = this.densityDpi - that.densityDpi; 1181 //if (n != 0) return n; 1182 return n; 1183 } 1184 1185 public boolean equals(Configuration that) { 1186 if (that == null) return false; 1187 if (that == this) return true; 1188 return this.compareTo(that) == 0; 1189 } 1190 1191 public boolean equals(Object that) { 1192 try { 1193 return equals((Configuration)that); 1194 } catch (ClassCastException e) { 1195 } 1196 return false; 1197 } 1198 1199 public int hashCode() { 1200 int result = 17; 1201 result = 31 * result + Float.floatToIntBits(fontScale); 1202 result = 31 * result + mcc; 1203 result = 31 * result + mnc; 1204 result = 31 * result + (locale != null ? locale.hashCode() : 0); 1205 result = 31 * result + touchscreen; 1206 result = 31 * result + keyboard; 1207 result = 31 * result + keyboardHidden; 1208 result = 31 * result + hardKeyboardHidden; 1209 result = 31 * result + navigation; 1210 result = 31 * result + navigationHidden; 1211 result = 31 * result + orientation; 1212 result = 31 * result + screenLayout; 1213 result = 31 * result + uiMode; 1214 result = 31 * result + screenWidthDp; 1215 result = 31 * result + screenHeightDp; 1216 result = 31 * result + smallestScreenWidthDp; 1217 result = 31 * result + densityDpi; 1218 return result; 1219 } 1220 1221 /** 1222 * Set the locale. This is the preferred way for setting up the locale (instead of using the 1223 * direct accessor). This will also set the userLocale and layout direction according to 1224 * the locale. 1225 * 1226 * @param loc The locale. Can be null. 1227 */ 1228 public void setLocale(Locale loc) { 1229 locale = loc; 1230 userSetLocale = true; 1231 setLayoutDirection(locale); 1232 } 1233 1234 /** 1235 * Return the layout direction. Will be either {@link View#LAYOUT_DIRECTION_LTR} or 1236 * {@link View#LAYOUT_DIRECTION_RTL}. 1237 * 1238 * @return Returns {@link View#LAYOUT_DIRECTION_RTL} if the configuration 1239 * is {@link #SCREENLAYOUT_LAYOUTDIR_RTL}, otherwise {@link View#LAYOUT_DIRECTION_LTR}. 1240 */ 1241 public int getLayoutDirection() { 1242 return (screenLayout&SCREENLAYOUT_LAYOUTDIR_MASK) == SCREENLAYOUT_LAYOUTDIR_RTL 1243 ? View.LAYOUT_DIRECTION_RTL : View.LAYOUT_DIRECTION_LTR; 1244 } 1245 1246 /** 1247 * Set the layout direction from the Locale. 1248 * 1249 * @param locale The Locale. If null will set the layout direction to 1250 * {@link View#LAYOUT_DIRECTION_LTR}. If not null will set it to the layout direction 1251 * corresponding to the Locale. 1252 * 1253 * @see {@link View#LAYOUT_DIRECTION_LTR} and {@link View#LAYOUT_DIRECTION_RTL} 1254 */ 1255 public void setLayoutDirection(Locale locale) { 1256 // There is a "1" difference between the configuration values for 1257 // layout direction and View constants for layout direction, just add "1". 1258 final int layoutDirection = 1 + TextUtils.getLayoutDirectionFromLocale(locale); 1259 screenLayout = (screenLayout&~SCREENLAYOUT_LAYOUTDIR_MASK)| 1260 (layoutDirection << SCREENLAYOUT_LAYOUTDIR_SHIFT); 1261 } 1262 1263 private static int getScreenLayoutNoDirection(int screenLayout) { 1264 return screenLayout&~SCREENLAYOUT_LAYOUTDIR_MASK; 1265 } 1266} 1267