Configuration.java revision 5f7979993979466c79ab4f38d83c6f2aca361662
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.util.LocaleUtil; 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. 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 /** 177 * Check if the Configuration's current {@link #screenLayout} is at 178 * least the given size. 179 * 180 * @param size The desired size, either {@link #SCREENLAYOUT_SIZE_SMALL}, 181 * {@link #SCREENLAYOUT_SIZE_NORMAL}, {@link #SCREENLAYOUT_SIZE_LARGE}, or 182 * {@link #SCREENLAYOUT_SIZE_XLARGE}. 183 * @return Returns true if the current screen layout size is at least 184 * the given size. 185 */ 186 public boolean isLayoutSizeAtLeast(int size) { 187 int cur = screenLayout&SCREENLAYOUT_SIZE_MASK; 188 if (cur == SCREENLAYOUT_SIZE_UNDEFINED) return false; 189 return cur >= size; 190 } 191 192 /** Constant for {@link #touchscreen}: a value indicating that no value has been set. */ 193 public static final int TOUCHSCREEN_UNDEFINED = 0; 194 /** Constant for {@link #touchscreen}, value corresponding to the 195 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#TouchscreenQualifier">notouch</a> 196 * resource qualifier. */ 197 public static final int TOUCHSCREEN_NOTOUCH = 1; 198 /** @deprecated Not currently supported or used. */ 199 @Deprecated public static final int TOUCHSCREEN_STYLUS = 2; 200 /** Constant for {@link #touchscreen}, value corresponding to the 201 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#TouchscreenQualifier">finger</a> 202 * resource qualifier. */ 203 public static final int TOUCHSCREEN_FINGER = 3; 204 205 /** 206 * The kind of touch screen attached to the device. 207 * One of: {@link #TOUCHSCREEN_NOTOUCH}, {@link #TOUCHSCREEN_FINGER}. 208 */ 209 public int touchscreen; 210 211 /** Constant for {@link #keyboard}: a value indicating that no value has been set. */ 212 public static final int KEYBOARD_UNDEFINED = 0; 213 /** Constant for {@link #keyboard}, value corresponding to the 214 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ImeQualifier">nokeys</a> 215 * resource qualifier. */ 216 public static final int KEYBOARD_NOKEYS = 1; 217 /** Constant for {@link #keyboard}, value corresponding to the 218 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ImeQualifier">qwerty</a> 219 * resource qualifier. */ 220 public static final int KEYBOARD_QWERTY = 2; 221 /** Constant for {@link #keyboard}, value corresponding to the 222 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ImeQualifier">12key</a> 223 * resource qualifier. */ 224 public static final int KEYBOARD_12KEY = 3; 225 226 /** 227 * The kind of keyboard attached to the device. 228 * One of: {@link #KEYBOARD_NOKEYS}, {@link #KEYBOARD_QWERTY}, 229 * {@link #KEYBOARD_12KEY}. 230 */ 231 public int keyboard; 232 233 /** Constant for {@link #keyboardHidden}: a value indicating that no value has been set. */ 234 public static final int KEYBOARDHIDDEN_UNDEFINED = 0; 235 /** Constant for {@link #keyboardHidden}, value corresponding to the 236 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#KeyboardAvailQualifier">keysexposed</a> 237 * resource qualifier. */ 238 public static final int KEYBOARDHIDDEN_NO = 1; 239 /** Constant for {@link #keyboardHidden}, value corresponding to the 240 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#KeyboardAvailQualifier">keyshidden</a> 241 * resource qualifier. */ 242 public static final int KEYBOARDHIDDEN_YES = 2; 243 /** Constant matching actual resource implementation. {@hide} */ 244 public static final int KEYBOARDHIDDEN_SOFT = 3; 245 246 /** 247 * A flag indicating whether any keyboard is available. Unlike 248 * {@link #hardKeyboardHidden}, this also takes into account a soft 249 * keyboard, so if the hard keyboard is hidden but there is soft 250 * keyboard available, it will be set to NO. Value is one of: 251 * {@link #KEYBOARDHIDDEN_NO}, {@link #KEYBOARDHIDDEN_YES}. 252 */ 253 public int keyboardHidden; 254 255 /** Constant for {@link #hardKeyboardHidden}: a value indicating that no value has been set. */ 256 public static final int HARDKEYBOARDHIDDEN_UNDEFINED = 0; 257 /** Constant for {@link #hardKeyboardHidden}, value corresponding to the 258 * physical keyboard being exposed. */ 259 public static final int HARDKEYBOARDHIDDEN_NO = 1; 260 /** Constant for {@link #hardKeyboardHidden}, value corresponding to the 261 * physical keyboard being hidden. */ 262 public static final int HARDKEYBOARDHIDDEN_YES = 2; 263 264 /** 265 * A flag indicating whether the hard keyboard has been hidden. This will 266 * be set on a device with a mechanism to hide the keyboard from the 267 * user, when that mechanism is closed. One of: 268 * {@link #HARDKEYBOARDHIDDEN_NO}, {@link #HARDKEYBOARDHIDDEN_YES}. 269 */ 270 public int hardKeyboardHidden; 271 272 /** Constant for {@link #navigation}: a value indicating that no value has been set. */ 273 public static final int NAVIGATION_UNDEFINED = 0; 274 /** Constant for {@link #navigation}, value corresponding to the 275 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavigationQualifier">nonav</a> 276 * resource qualifier. */ 277 public static final int NAVIGATION_NONAV = 1; 278 /** Constant for {@link #navigation}, value corresponding to the 279 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavigationQualifier">dpad</a> 280 * resource qualifier. */ 281 public static final int NAVIGATION_DPAD = 2; 282 /** Constant for {@link #navigation}, value corresponding to the 283 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavigationQualifier">trackball</a> 284 * resource qualifier. */ 285 public static final int NAVIGATION_TRACKBALL = 3; 286 /** Constant for {@link #navigation}, value corresponding to the 287 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavigationQualifier">wheel</a> 288 * resource qualifier. */ 289 public static final int NAVIGATION_WHEEL = 4; 290 291 /** 292 * The kind of navigation method available on the device. 293 * One of: {@link #NAVIGATION_NONAV}, {@link #NAVIGATION_DPAD}, 294 * {@link #NAVIGATION_TRACKBALL}, {@link #NAVIGATION_WHEEL}. 295 */ 296 public int navigation; 297 298 /** Constant for {@link #navigationHidden}: a value indicating that no value has been set. */ 299 public static final int NAVIGATIONHIDDEN_UNDEFINED = 0; 300 /** Constant for {@link #navigationHidden}, value corresponding to the 301 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavAvailQualifier">navexposed</a> 302 * resource qualifier. */ 303 public static final int NAVIGATIONHIDDEN_NO = 1; 304 /** Constant for {@link #navigationHidden}, value corresponding to the 305 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavAvailQualifier">navhidden</a> 306 * resource qualifier. */ 307 public static final int NAVIGATIONHIDDEN_YES = 2; 308 309 /** 310 * A flag indicating whether any 5-way or DPAD navigation available. 311 * This will be set on a device with a mechanism to hide the navigation 312 * controls from the user, when that mechanism is closed. One of: 313 * {@link #NAVIGATIONHIDDEN_NO}, {@link #NAVIGATIONHIDDEN_YES}. 314 */ 315 public int navigationHidden; 316 317 /** Constant for {@link #orientation}: a value indicating that no value has been set. */ 318 public static final int ORIENTATION_UNDEFINED = 0; 319 /** Constant for {@link #orientation}, value corresponding to the 320 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#OrientationQualifier">port</a> 321 * resource qualifier. */ 322 public static final int ORIENTATION_PORTRAIT = 1; 323 /** Constant for {@link #orientation}, value corresponding to the 324 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#OrientationQualifier">land</a> 325 * resource qualifier. */ 326 public static final int ORIENTATION_LANDSCAPE = 2; 327 /** @deprecated Not currently supported or used. */ 328 @Deprecated public static final int ORIENTATION_SQUARE = 3; 329 330 /** 331 * Overall orientation of the screen. May be one of 332 * {@link #ORIENTATION_LANDSCAPE}, {@link #ORIENTATION_PORTRAIT}. 333 */ 334 public int orientation; 335 336 /** Constant for {@link #uiMode}: bits that encode the mode type. */ 337 public static final int UI_MODE_TYPE_MASK = 0x0f; 338 /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} 339 * value indicating that no mode type has been set. */ 340 public static final int UI_MODE_TYPE_UNDEFINED = 0x00; 341 /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} 342 * value that corresponds to 343 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">no 344 * UI mode</a> resource qualifier specified. */ 345 public static final int UI_MODE_TYPE_NORMAL = 0x01; 346 /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} 347 * value that corresponds to the 348 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">desk</a> 349 * resource qualifier. */ 350 public static final int UI_MODE_TYPE_DESK = 0x02; 351 /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} 352 * value that corresponds to the 353 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">car</a> 354 * resource qualifier. */ 355 public static final int UI_MODE_TYPE_CAR = 0x03; 356 /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} 357 * value that corresponds to the 358 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">television</a> 359 * resource qualifier. */ 360 public static final int UI_MODE_TYPE_TELEVISION = 0x04; 361 /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} 362 * value that corresponds to the 363 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">appliance</a> 364 * resource qualifier. */ 365 public static final int UI_MODE_TYPE_APPLIANCE = 0x05; 366 367 /** Constant for {@link #uiMode}: bits that encode the night mode. */ 368 public static final int UI_MODE_NIGHT_MASK = 0x30; 369 /** Constant for {@link #uiMode}: a {@link #UI_MODE_NIGHT_MASK} 370 * value indicating that no mode type has been set. */ 371 public static final int UI_MODE_NIGHT_UNDEFINED = 0x00; 372 /** Constant for {@link #uiMode}: a {@link #UI_MODE_NIGHT_MASK} 373 * value that corresponds to the 374 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NightQualifier">notnight</a> 375 * resource qualifier. */ 376 public static final int UI_MODE_NIGHT_NO = 0x10; 377 /** Constant for {@link #uiMode}: a {@link #UI_MODE_NIGHT_MASK} 378 * value that corresponds to the 379 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NightQualifier">night</a> 380 * resource qualifier. */ 381 public static final int UI_MODE_NIGHT_YES = 0x20; 382 383 /** 384 * Bit mask of the ui mode. Currently there are two fields: 385 * <p>The {@link #UI_MODE_TYPE_MASK} bits define the overall ui mode of the 386 * device. They may be one of {@link #UI_MODE_TYPE_UNDEFINED}, 387 * {@link #UI_MODE_TYPE_NORMAL}, {@link #UI_MODE_TYPE_DESK}, 388 * {@link #UI_MODE_TYPE_CAR}, {@link #UI_MODE_TYPE_TELEVISION}, or 389 * {@link #UI_MODE_TYPE_APPLIANCE}. 390 * 391 * <p>The {@link #UI_MODE_NIGHT_MASK} defines whether the screen 392 * is in a special mode. They may be one of {@link #UI_MODE_NIGHT_UNDEFINED}, 393 * {@link #UI_MODE_NIGHT_NO} or {@link #UI_MODE_NIGHT_YES}. 394 */ 395 public int uiMode; 396 397 /** 398 * Default value for {@link #screenWidthDp} indicating that no width 399 * has been specified. 400 */ 401 public static final int SCREEN_WIDTH_DP_UNDEFINED = 0; 402 403 /** 404 * The current width of the available screen space, in dp units, 405 * corresponding to 406 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenWidthQualifier">screen 407 * width</a> resource qualifier. Set to 408 * {@link #SCREEN_WIDTH_DP_UNDEFINED} if no width is specified. 409 */ 410 public int screenWidthDp; 411 412 /** 413 * Default value for {@link #screenHeightDp} indicating that no width 414 * has been specified. 415 */ 416 public static final int SCREEN_HEIGHT_DP_UNDEFINED = 0; 417 418 /** 419 * The current height of the available screen space, in dp units, 420 * corresponding to 421 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenHeightQualifier">screen 422 * height</a> resource qualifier. Set to 423 * {@link #SCREEN_HEIGHT_DP_UNDEFINED} if no height is specified. 424 */ 425 public int screenHeightDp; 426 427 /** 428 * Default value for {@link #smallestScreenWidthDp} indicating that no width 429 * has been specified. 430 */ 431 public static final int SMALLEST_SCREEN_WIDTH_DP_UNDEFINED = 0; 432 433 /** 434 * The smallest screen size an application will see in normal operation, 435 * corresponding to 436 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#SmallestScreenWidthQualifier">smallest 437 * screen width</a> resource qualifier. 438 * This is the smallest value of both screenWidthDp and screenHeightDp 439 * in both portrait and landscape. Set to 440 * {@link #SMALLEST_SCREEN_WIDTH_DP_UNDEFINED} if no width is specified. 441 */ 442 public int smallestScreenWidthDp; 443 444 /** 445 * Default value for {@link #densityDpi} indicating that no width 446 * has been specified. 447 */ 448 public static final int DENSITY_DPI_UNDEFINED = 0; 449 450 /** 451 * The target screen density being rendered to, 452 * corresponding to 453 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#DensityQualifier">density</a> 454 * resource qualifier. Set to 455 * {@link #DENSITY_DPI_UNDEFINED} if no density is specified. 456 */ 457 public int densityDpi; 458 459 /** @hide Hack to get this information from WM to app running in compat mode. */ 460 public int compatScreenWidthDp; 461 /** @hide Hack to get this information from WM to app running in compat mode. */ 462 public int compatScreenHeightDp; 463 /** @hide Hack to get this information from WM to app running in compat mode. */ 464 public int compatSmallestScreenWidthDp; 465 466 /** 467 * @hide Internal book-keeping. 468 */ 469 public int seq; 470 471 /** 472 * Construct an invalid Configuration. You must call {@link #setToDefaults} 473 * for this object to be valid. {@more} 474 */ 475 public Configuration() { 476 setToDefaults(); 477 } 478 479 /** 480 * Makes a deep copy suitable for modification. 481 */ 482 public Configuration(Configuration o) { 483 setTo(o); 484 } 485 486 public void setTo(Configuration o) { 487 fontScale = o.fontScale; 488 mcc = o.mcc; 489 mnc = o.mnc; 490 if (o.locale != null) { 491 locale = (Locale) o.locale.clone(); 492 } 493 userSetLocale = o.userSetLocale; 494 touchscreen = o.touchscreen; 495 keyboard = o.keyboard; 496 keyboardHidden = o.keyboardHidden; 497 hardKeyboardHidden = o.hardKeyboardHidden; 498 navigation = o.navigation; 499 navigationHidden = o.navigationHidden; 500 orientation = o.orientation; 501 screenLayout = o.screenLayout; 502 uiMode = o.uiMode; 503 screenWidthDp = o.screenWidthDp; 504 screenHeightDp = o.screenHeightDp; 505 smallestScreenWidthDp = o.smallestScreenWidthDp; 506 densityDpi = o.densityDpi; 507 compatScreenWidthDp = o.compatScreenWidthDp; 508 compatScreenHeightDp = o.compatScreenHeightDp; 509 compatSmallestScreenWidthDp = o.compatSmallestScreenWidthDp; 510 seq = o.seq; 511 } 512 513 public String toString() { 514 StringBuilder sb = new StringBuilder(128); 515 sb.append("{"); 516 sb.append(fontScale); 517 sb.append(" "); 518 if (mcc != 0) { 519 sb.append(mcc); 520 sb.append("mcc"); 521 } else { 522 sb.append("?mcc"); 523 } 524 if (mnc != 0) { 525 sb.append(mnc); 526 sb.append("mnc"); 527 } else { 528 sb.append("?mnc"); 529 } 530 if (locale != null) { 531 sb.append(" "); 532 sb.append(locale); 533 } else { 534 sb.append(" ?locale"); 535 } 536 int layoutDir = (screenLayout&SCREENLAYOUT_LAYOUTDIR_MASK); 537 switch (layoutDir) { 538 case SCREENLAYOUT_LAYOUTDIR_UNDEFINED: sb.append(" ?layoutDir"); break; 539 case SCREENLAYOUT_LAYOUTDIR_LTR: sb.append(" ltr"); break; 540 case SCREENLAYOUT_LAYOUTDIR_RTL: sb.append(" rtl"); break; 541 default: sb.append(" layoutDir="); 542 sb.append(layoutDir >> SCREENLAYOUT_LAYOUTDIR_SHIFT); break; 543 } 544 if (smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED) { 545 sb.append(" sw"); sb.append(smallestScreenWidthDp); sb.append("dp"); 546 } else { 547 sb.append(" ?swdp"); 548 } 549 if (screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED) { 550 sb.append(" w"); sb.append(screenWidthDp); sb.append("dp"); 551 } else { 552 sb.append(" ?wdp"); 553 } 554 if (screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED) { 555 sb.append(" h"); sb.append(screenHeightDp); sb.append("dp"); 556 } else { 557 sb.append(" ?hdp"); 558 } 559 if (densityDpi != DENSITY_DPI_UNDEFINED) { 560 sb.append(" "); sb.append(densityDpi); sb.append("dpi"); 561 } else { 562 sb.append(" ?density"); 563 } 564 switch ((screenLayout&SCREENLAYOUT_SIZE_MASK)) { 565 case SCREENLAYOUT_SIZE_UNDEFINED: sb.append(" ?lsize"); break; 566 case SCREENLAYOUT_SIZE_SMALL: sb.append(" smll"); break; 567 case SCREENLAYOUT_SIZE_NORMAL: sb.append(" nrml"); break; 568 case SCREENLAYOUT_SIZE_LARGE: sb.append(" lrg"); break; 569 case SCREENLAYOUT_SIZE_XLARGE: sb.append(" xlrg"); break; 570 default: sb.append(" layoutSize="); 571 sb.append(screenLayout&SCREENLAYOUT_SIZE_MASK); break; 572 } 573 switch ((screenLayout&SCREENLAYOUT_LONG_MASK)) { 574 case SCREENLAYOUT_LONG_UNDEFINED: sb.append(" ?long"); break; 575 case SCREENLAYOUT_LONG_NO: /* not-long is not interesting to print */ break; 576 case SCREENLAYOUT_LONG_YES: sb.append(" long"); break; 577 default: sb.append(" layoutLong="); 578 sb.append(screenLayout&SCREENLAYOUT_LONG_MASK); break; 579 } 580 switch (orientation) { 581 case ORIENTATION_UNDEFINED: sb.append(" ?orien"); break; 582 case ORIENTATION_LANDSCAPE: sb.append(" land"); break; 583 case ORIENTATION_PORTRAIT: sb.append(" port"); break; 584 default: sb.append(" orien="); sb.append(orientation); break; 585 } 586 switch ((uiMode&UI_MODE_TYPE_MASK)) { 587 case UI_MODE_TYPE_UNDEFINED: sb.append(" ?uimode"); break; 588 case UI_MODE_TYPE_NORMAL: /* normal is not interesting to print */ break; 589 case UI_MODE_TYPE_DESK: sb.append(" desk"); break; 590 case UI_MODE_TYPE_CAR: sb.append(" car"); break; 591 case UI_MODE_TYPE_TELEVISION: sb.append(" television"); break; 592 case UI_MODE_TYPE_APPLIANCE: sb.append(" appliance"); break; 593 default: sb.append(" uimode="); sb.append(uiMode&UI_MODE_TYPE_MASK); break; 594 } 595 switch ((uiMode&UI_MODE_NIGHT_MASK)) { 596 case UI_MODE_NIGHT_UNDEFINED: sb.append(" ?night"); break; 597 case UI_MODE_NIGHT_NO: /* not-night is not interesting to print */ break; 598 case UI_MODE_NIGHT_YES: sb.append(" night"); break; 599 default: sb.append(" night="); sb.append(uiMode&UI_MODE_NIGHT_MASK); break; 600 } 601 switch (touchscreen) { 602 case TOUCHSCREEN_UNDEFINED: sb.append(" ?touch"); break; 603 case TOUCHSCREEN_NOTOUCH: sb.append(" -touch"); break; 604 case TOUCHSCREEN_STYLUS: sb.append(" stylus"); break; 605 case TOUCHSCREEN_FINGER: sb.append(" finger"); break; 606 default: sb.append(" touch="); sb.append(touchscreen); break; 607 } 608 switch (keyboard) { 609 case KEYBOARD_UNDEFINED: sb.append(" ?keyb"); break; 610 case KEYBOARD_NOKEYS: sb.append(" -keyb"); break; 611 case KEYBOARD_QWERTY: sb.append(" qwerty"); break; 612 case KEYBOARD_12KEY: sb.append(" 12key"); break; 613 default: sb.append(" keys="); sb.append(keyboard); break; 614 } 615 switch (keyboardHidden) { 616 case KEYBOARDHIDDEN_UNDEFINED: sb.append("/?"); break; 617 case KEYBOARDHIDDEN_NO: sb.append("/v"); break; 618 case KEYBOARDHIDDEN_YES: sb.append("/h"); break; 619 case KEYBOARDHIDDEN_SOFT: sb.append("/s"); break; 620 default: sb.append("/"); sb.append(keyboardHidden); break; 621 } 622 switch (hardKeyboardHidden) { 623 case HARDKEYBOARDHIDDEN_UNDEFINED: sb.append("/?"); break; 624 case HARDKEYBOARDHIDDEN_NO: sb.append("/v"); break; 625 case HARDKEYBOARDHIDDEN_YES: sb.append("/h"); break; 626 default: sb.append("/"); sb.append(hardKeyboardHidden); break; 627 } 628 switch (navigation) { 629 case NAVIGATION_UNDEFINED: sb.append(" ?nav"); break; 630 case NAVIGATION_NONAV: sb.append(" -nav"); break; 631 case NAVIGATION_DPAD: sb.append(" dpad"); break; 632 case NAVIGATION_TRACKBALL: sb.append(" tball"); break; 633 case NAVIGATION_WHEEL: sb.append(" wheel"); break; 634 default: sb.append(" nav="); sb.append(navigation); break; 635 } 636 switch (navigationHidden) { 637 case NAVIGATIONHIDDEN_UNDEFINED: sb.append("/?"); break; 638 case NAVIGATIONHIDDEN_NO: sb.append("/v"); break; 639 case NAVIGATIONHIDDEN_YES: sb.append("/h"); break; 640 default: sb.append("/"); sb.append(navigationHidden); break; 641 } 642 if (seq != 0) { 643 sb.append(" s."); 644 sb.append(seq); 645 } 646 sb.append('}'); 647 return sb.toString(); 648 } 649 650 /** 651 * Set this object to the system defaults. 652 */ 653 public void setToDefaults() { 654 fontScale = 1; 655 mcc = mnc = 0; 656 locale = null; 657 userSetLocale = false; 658 touchscreen = TOUCHSCREEN_UNDEFINED; 659 keyboard = KEYBOARD_UNDEFINED; 660 keyboardHidden = KEYBOARDHIDDEN_UNDEFINED; 661 hardKeyboardHidden = HARDKEYBOARDHIDDEN_UNDEFINED; 662 navigation = NAVIGATION_UNDEFINED; 663 navigationHidden = NAVIGATIONHIDDEN_UNDEFINED; 664 orientation = ORIENTATION_UNDEFINED; 665 screenLayout = SCREENLAYOUT_UNDEFINED; 666 uiMode = UI_MODE_TYPE_UNDEFINED; 667 screenWidthDp = compatScreenWidthDp = SCREEN_WIDTH_DP_UNDEFINED; 668 screenHeightDp = compatScreenHeightDp = SCREEN_HEIGHT_DP_UNDEFINED; 669 smallestScreenWidthDp = compatSmallestScreenWidthDp = SMALLEST_SCREEN_WIDTH_DP_UNDEFINED; 670 densityDpi = DENSITY_DPI_UNDEFINED; 671 seq = 0; 672 } 673 674 /** {@hide} */ 675 @Deprecated public void makeDefault() { 676 setToDefaults(); 677 } 678 679 /** 680 * Copy the fields from delta into this Configuration object, keeping 681 * track of which ones have changed. Any undefined fields in 682 * <var>delta</var> are ignored and not copied in to the current 683 * Configuration. 684 * @return Returns a bit mask of the changed fields, as per 685 * {@link #diff}. 686 */ 687 public int updateFrom(Configuration delta) { 688 int changed = 0; 689 if (delta.fontScale > 0 && fontScale != delta.fontScale) { 690 changed |= ActivityInfo.CONFIG_FONT_SCALE; 691 fontScale = delta.fontScale; 692 } 693 if (delta.mcc != 0 && mcc != delta.mcc) { 694 changed |= ActivityInfo.CONFIG_MCC; 695 mcc = delta.mcc; 696 } 697 if (delta.mnc != 0 && mnc != delta.mnc) { 698 changed |= ActivityInfo.CONFIG_MNC; 699 mnc = delta.mnc; 700 } 701 if (delta.locale != null 702 && (locale == null || !locale.equals(delta.locale))) { 703 changed |= ActivityInfo.CONFIG_LOCALE; 704 locale = delta.locale != null 705 ? (Locale) delta.locale.clone() : null; 706 // If locale has changed, then layout direction is also changed ... 707 changed |= ActivityInfo.CONFIG_LAYOUT_DIRECTION; 708 // ... and we need to update the layout direction (represented by the first 709 // 2 most significant bits in screenLayout). 710 setLayoutDirection(locale); 711 } 712 if (delta.userSetLocale && (!userSetLocale || ((changed & ActivityInfo.CONFIG_LOCALE) != 0))) 713 { 714 userSetLocale = true; 715 changed |= ActivityInfo.CONFIG_LOCALE; 716 } 717 if (delta.touchscreen != TOUCHSCREEN_UNDEFINED 718 && touchscreen != delta.touchscreen) { 719 changed |= ActivityInfo.CONFIG_TOUCHSCREEN; 720 touchscreen = delta.touchscreen; 721 } 722 if (delta.keyboard != KEYBOARD_UNDEFINED 723 && keyboard != delta.keyboard) { 724 changed |= ActivityInfo.CONFIG_KEYBOARD; 725 keyboard = delta.keyboard; 726 } 727 if (delta.keyboardHidden != KEYBOARDHIDDEN_UNDEFINED 728 && keyboardHidden != delta.keyboardHidden) { 729 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 730 keyboardHidden = delta.keyboardHidden; 731 } 732 if (delta.hardKeyboardHidden != HARDKEYBOARDHIDDEN_UNDEFINED 733 && hardKeyboardHidden != delta.hardKeyboardHidden) { 734 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 735 hardKeyboardHidden = delta.hardKeyboardHidden; 736 } 737 if (delta.navigation != NAVIGATION_UNDEFINED 738 && navigation != delta.navigation) { 739 changed |= ActivityInfo.CONFIG_NAVIGATION; 740 navigation = delta.navigation; 741 } 742 if (delta.navigationHidden != NAVIGATIONHIDDEN_UNDEFINED 743 && navigationHidden != delta.navigationHidden) { 744 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 745 navigationHidden = delta.navigationHidden; 746 } 747 if (delta.orientation != ORIENTATION_UNDEFINED 748 && orientation != delta.orientation) { 749 changed |= ActivityInfo.CONFIG_ORIENTATION; 750 orientation = delta.orientation; 751 } 752 if (getScreenLayoutNoDirection(delta.screenLayout) != 753 (SCREENLAYOUT_SIZE_UNDEFINED | SCREENLAYOUT_LONG_UNDEFINED) 754 && (getScreenLayoutNoDirection(screenLayout) != 755 getScreenLayoutNoDirection(delta.screenLayout))) { 756 changed |= ActivityInfo.CONFIG_SCREEN_LAYOUT; 757 // We need to preserve the previous layout dir bits if they were defined 758 if ((delta.screenLayout&SCREENLAYOUT_LAYOUTDIR_MASK) == 0) { 759 screenLayout = (screenLayout&SCREENLAYOUT_LAYOUTDIR_MASK)|delta.screenLayout; 760 } else { 761 screenLayout = delta.screenLayout; 762 } 763 } 764 if (delta.uiMode != (UI_MODE_TYPE_UNDEFINED|UI_MODE_NIGHT_UNDEFINED) 765 && uiMode != delta.uiMode) { 766 changed |= ActivityInfo.CONFIG_UI_MODE; 767 if ((delta.uiMode&UI_MODE_TYPE_MASK) != UI_MODE_TYPE_UNDEFINED) { 768 uiMode = (uiMode&~UI_MODE_TYPE_MASK) 769 | (delta.uiMode&UI_MODE_TYPE_MASK); 770 } 771 if ((delta.uiMode&UI_MODE_NIGHT_MASK) != UI_MODE_NIGHT_UNDEFINED) { 772 uiMode = (uiMode&~UI_MODE_NIGHT_MASK) 773 | (delta.uiMode&UI_MODE_NIGHT_MASK); 774 } 775 } 776 if (delta.screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED 777 && screenWidthDp != delta.screenWidthDp) { 778 changed |= ActivityInfo.CONFIG_SCREEN_SIZE; 779 screenWidthDp = delta.screenWidthDp; 780 } 781 if (delta.screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED 782 && screenHeightDp != delta.screenHeightDp) { 783 changed |= ActivityInfo.CONFIG_SCREEN_SIZE; 784 screenHeightDp = delta.screenHeightDp; 785 } 786 if (delta.smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED) { 787 changed |= ActivityInfo.CONFIG_SCREEN_SIZE; 788 smallestScreenWidthDp = delta.smallestScreenWidthDp; 789 } 790 if (delta.densityDpi != DENSITY_DPI_UNDEFINED) { 791 changed |= ActivityInfo.CONFIG_DENSITY; 792 densityDpi = delta.densityDpi; 793 } 794 if (delta.compatScreenWidthDp != SCREEN_WIDTH_DP_UNDEFINED) { 795 compatScreenWidthDp = delta.compatScreenWidthDp; 796 } 797 if (delta.compatScreenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED) { 798 compatScreenHeightDp = delta.compatScreenHeightDp; 799 } 800 if (delta.compatSmallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED) { 801 compatSmallestScreenWidthDp = delta.compatSmallestScreenWidthDp; 802 } 803 if (delta.seq != 0) { 804 seq = delta.seq; 805 } 806 807 return changed; 808 } 809 810 /** 811 * Return a bit mask of the differences between this Configuration 812 * object and the given one. Does not change the values of either. Any 813 * undefined fields in <var>delta</var> are ignored. 814 * @return Returns a bit mask indicating which configuration 815 * values has changed, containing any combination of 816 * {@link android.content.pm.ActivityInfo#CONFIG_FONT_SCALE 817 * PackageManager.ActivityInfo.CONFIG_FONT_SCALE}, 818 * {@link android.content.pm.ActivityInfo#CONFIG_MCC 819 * PackageManager.ActivityInfo.CONFIG_MCC}, 820 * {@link android.content.pm.ActivityInfo#CONFIG_MNC 821 * PackageManager.ActivityInfo.CONFIG_MNC}, 822 * {@link android.content.pm.ActivityInfo#CONFIG_LOCALE 823 * PackageManager.ActivityInfo.CONFIG_LOCALE}, 824 * {@link android.content.pm.ActivityInfo#CONFIG_TOUCHSCREEN 825 * PackageManager.ActivityInfo.CONFIG_TOUCHSCREEN}, 826 * {@link android.content.pm.ActivityInfo#CONFIG_KEYBOARD 827 * PackageManager.ActivityInfo.CONFIG_KEYBOARD}, 828 * {@link android.content.pm.ActivityInfo#CONFIG_NAVIGATION 829 * PackageManager.ActivityInfo.CONFIG_NAVIGATION}, 830 * {@link android.content.pm.ActivityInfo#CONFIG_ORIENTATION 831 * PackageManager.ActivityInfo.CONFIG_ORIENTATION}, 832 * {@link android.content.pm.ActivityInfo#CONFIG_SCREEN_LAYOUT 833 * PackageManager.ActivityInfo.CONFIG_SCREEN_LAYOUT}, or 834 * {@link android.content.pm.ActivityInfo#CONFIG_SCREEN_SIZE 835 * PackageManager.ActivityInfo.CONFIG_SCREEN_SIZE}, or 836 * {@link android.content.pm.ActivityInfo#CONFIG_SMALLEST_SCREEN_SIZE 837 * PackageManager.ActivityInfo.CONFIG_SMALLEST_SCREEN_SIZE}. 838 * {@link android.content.pm.ActivityInfo#CONFIG_LAYOUT_DIRECTION 839 * PackageManager.ActivityInfo.CONFIG_LAYOUT_DIRECTION}. 840 */ 841 public int diff(Configuration delta) { 842 int changed = 0; 843 if (delta.fontScale > 0 && fontScale != delta.fontScale) { 844 changed |= ActivityInfo.CONFIG_FONT_SCALE; 845 } 846 if (delta.mcc != 0 && mcc != delta.mcc) { 847 changed |= ActivityInfo.CONFIG_MCC; 848 } 849 if (delta.mnc != 0 && mnc != delta.mnc) { 850 changed |= ActivityInfo.CONFIG_MNC; 851 } 852 if (delta.locale != null 853 && (locale == null || !locale.equals(delta.locale))) { 854 changed |= ActivityInfo.CONFIG_LOCALE; 855 changed |= ActivityInfo.CONFIG_LAYOUT_DIRECTION; 856 } 857 if (delta.touchscreen != TOUCHSCREEN_UNDEFINED 858 && touchscreen != delta.touchscreen) { 859 changed |= ActivityInfo.CONFIG_TOUCHSCREEN; 860 } 861 if (delta.keyboard != KEYBOARD_UNDEFINED 862 && keyboard != delta.keyboard) { 863 changed |= ActivityInfo.CONFIG_KEYBOARD; 864 } 865 if (delta.keyboardHidden != KEYBOARDHIDDEN_UNDEFINED 866 && keyboardHidden != delta.keyboardHidden) { 867 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 868 } 869 if (delta.hardKeyboardHidden != HARDKEYBOARDHIDDEN_UNDEFINED 870 && hardKeyboardHidden != delta.hardKeyboardHidden) { 871 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 872 } 873 if (delta.navigation != NAVIGATION_UNDEFINED 874 && navigation != delta.navigation) { 875 changed |= ActivityInfo.CONFIG_NAVIGATION; 876 } 877 if (delta.navigationHidden != NAVIGATIONHIDDEN_UNDEFINED 878 && navigationHidden != delta.navigationHidden) { 879 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 880 } 881 if (delta.orientation != ORIENTATION_UNDEFINED 882 && orientation != delta.orientation) { 883 changed |= ActivityInfo.CONFIG_ORIENTATION; 884 } 885 if (getScreenLayoutNoDirection(delta.screenLayout) != 886 (SCREENLAYOUT_SIZE_UNDEFINED | SCREENLAYOUT_LONG_UNDEFINED) 887 && getScreenLayoutNoDirection(screenLayout) != 888 getScreenLayoutNoDirection(delta.screenLayout)) { 889 changed |= ActivityInfo.CONFIG_SCREEN_LAYOUT; 890 } 891 if (delta.uiMode != (UI_MODE_TYPE_UNDEFINED|UI_MODE_NIGHT_UNDEFINED) 892 && uiMode != delta.uiMode) { 893 changed |= ActivityInfo.CONFIG_UI_MODE; 894 } 895 if (delta.screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED 896 && screenWidthDp != delta.screenWidthDp) { 897 changed |= ActivityInfo.CONFIG_SCREEN_SIZE; 898 } 899 if (delta.screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED 900 && screenHeightDp != delta.screenHeightDp) { 901 changed |= ActivityInfo.CONFIG_SCREEN_SIZE; 902 } 903 if (delta.smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED 904 && smallestScreenWidthDp != delta.smallestScreenWidthDp) { 905 changed |= ActivityInfo.CONFIG_SMALLEST_SCREEN_SIZE; 906 } 907 if (delta.densityDpi != DENSITY_DPI_UNDEFINED 908 && densityDpi != delta.densityDpi) { 909 changed |= ActivityInfo.CONFIG_DENSITY; 910 } 911 912 return changed; 913 } 914 915 /** 916 * Determine if a new resource needs to be loaded from the bit set of 917 * configuration changes returned by {@link #updateFrom(Configuration)}. 918 * 919 * @param configChanges The mask of changes configurations as returned by 920 * {@link #updateFrom(Configuration)}. 921 * @param interestingChanges The configuration changes that the resource 922 * can handled, as given in {@link android.util.TypedValue#changingConfigurations}. 923 * 924 * @return Return true if the resource needs to be loaded, else false. 925 */ 926 public static boolean needNewResources(int configChanges, int interestingChanges) { 927 return (configChanges & (interestingChanges|ActivityInfo.CONFIG_FONT_SCALE)) != 0; 928 } 929 930 /** 931 * @hide Return true if the sequence of 'other' is better than this. Assumes 932 * that 'this' is your current sequence and 'other' is a new one you have 933 * received some how and want to compare with what you have. 934 */ 935 public boolean isOtherSeqNewer(Configuration other) { 936 if (other == null) { 937 // Sanity check. 938 return false; 939 } 940 if (other.seq == 0) { 941 // If the other sequence is not specified, then we must assume 942 // it is newer since we don't know any better. 943 return true; 944 } 945 if (seq == 0) { 946 // If this sequence is not specified, then we also consider the 947 // other is better. Yes we have a preference for other. Sue us. 948 return true; 949 } 950 int diff = other.seq - seq; 951 if (diff > 0x10000) { 952 // If there has been a sufficiently large jump, assume the 953 // sequence has wrapped around. 954 return false; 955 } 956 return diff > 0; 957 } 958 959 /** 960 * Parcelable methods 961 */ 962 public int describeContents() { 963 return 0; 964 } 965 966 public void writeToParcel(Parcel dest, int flags) { 967 dest.writeFloat(fontScale); 968 dest.writeInt(mcc); 969 dest.writeInt(mnc); 970 if (locale == null) { 971 dest.writeInt(0); 972 } else { 973 dest.writeInt(1); 974 dest.writeString(locale.getLanguage()); 975 dest.writeString(locale.getCountry()); 976 dest.writeString(locale.getVariant()); 977 } 978 if(userSetLocale) { 979 dest.writeInt(1); 980 } else { 981 dest.writeInt(0); 982 } 983 dest.writeInt(touchscreen); 984 dest.writeInt(keyboard); 985 dest.writeInt(keyboardHidden); 986 dest.writeInt(hardKeyboardHidden); 987 dest.writeInt(navigation); 988 dest.writeInt(navigationHidden); 989 dest.writeInt(orientation); 990 dest.writeInt(screenLayout); 991 dest.writeInt(uiMode); 992 dest.writeInt(screenWidthDp); 993 dest.writeInt(screenHeightDp); 994 dest.writeInt(smallestScreenWidthDp); 995 dest.writeInt(densityDpi); 996 dest.writeInt(compatScreenWidthDp); 997 dest.writeInt(compatScreenHeightDp); 998 dest.writeInt(compatSmallestScreenWidthDp); 999 dest.writeInt(seq); 1000 } 1001 1002 public void readFromParcel(Parcel source) { 1003 fontScale = source.readFloat(); 1004 mcc = source.readInt(); 1005 mnc = source.readInt(); 1006 if (source.readInt() != 0) { 1007 locale = new Locale(source.readString(), source.readString(), 1008 source.readString()); 1009 } 1010 userSetLocale = (source.readInt()==1); 1011 touchscreen = source.readInt(); 1012 keyboard = source.readInt(); 1013 keyboardHidden = source.readInt(); 1014 hardKeyboardHidden = source.readInt(); 1015 navigation = source.readInt(); 1016 navigationHidden = source.readInt(); 1017 orientation = source.readInt(); 1018 screenLayout = source.readInt(); 1019 uiMode = source.readInt(); 1020 screenWidthDp = source.readInt(); 1021 screenHeightDp = source.readInt(); 1022 smallestScreenWidthDp = source.readInt(); 1023 densityDpi = source.readInt(); 1024 compatScreenWidthDp = source.readInt(); 1025 compatScreenHeightDp = source.readInt(); 1026 compatSmallestScreenWidthDp = source.readInt(); 1027 seq = source.readInt(); 1028 } 1029 1030 public static final Parcelable.Creator<Configuration> CREATOR 1031 = new Parcelable.Creator<Configuration>() { 1032 public Configuration createFromParcel(Parcel source) { 1033 return new Configuration(source); 1034 } 1035 1036 public Configuration[] newArray(int size) { 1037 return new Configuration[size]; 1038 } 1039 }; 1040 1041 /** 1042 * Construct this Configuration object, reading from the Parcel. 1043 */ 1044 private Configuration(Parcel source) { 1045 readFromParcel(source); 1046 } 1047 1048 public int compareTo(Configuration that) { 1049 int n; 1050 float a = this.fontScale; 1051 float b = that.fontScale; 1052 if (a < b) return -1; 1053 if (a > b) return 1; 1054 n = this.mcc - that.mcc; 1055 if (n != 0) return n; 1056 n = this.mnc - that.mnc; 1057 if (n != 0) return n; 1058 if (this.locale == null) { 1059 if (that.locale != null) return 1; 1060 } else if (that.locale == null) { 1061 return -1; 1062 } else { 1063 n = this.locale.getLanguage().compareTo(that.locale.getLanguage()); 1064 if (n != 0) return n; 1065 n = this.locale.getCountry().compareTo(that.locale.getCountry()); 1066 if (n != 0) return n; 1067 n = this.locale.getVariant().compareTo(that.locale.getVariant()); 1068 if (n != 0) return n; 1069 } 1070 n = this.touchscreen - that.touchscreen; 1071 if (n != 0) return n; 1072 n = this.keyboard - that.keyboard; 1073 if (n != 0) return n; 1074 n = this.keyboardHidden - that.keyboardHidden; 1075 if (n != 0) return n; 1076 n = this.hardKeyboardHidden - that.hardKeyboardHidden; 1077 if (n != 0) return n; 1078 n = this.navigation - that.navigation; 1079 if (n != 0) return n; 1080 n = this.navigationHidden - that.navigationHidden; 1081 if (n != 0) return n; 1082 n = this.orientation - that.orientation; 1083 if (n != 0) return n; 1084 n = this.screenLayout - that.screenLayout; 1085 if (n != 0) return n; 1086 n = this.uiMode - that.uiMode; 1087 if (n != 0) return n; 1088 n = this.screenWidthDp - that.screenWidthDp; 1089 if (n != 0) return n; 1090 n = this.screenHeightDp - that.screenHeightDp; 1091 if (n != 0) return n; 1092 n = this.smallestScreenWidthDp - that.smallestScreenWidthDp; 1093 if (n != 0) return n; 1094 n = this.densityDpi - that.densityDpi; 1095 //if (n != 0) return n; 1096 return n; 1097 } 1098 1099 public boolean equals(Configuration that) { 1100 if (that == null) return false; 1101 if (that == this) return true; 1102 return this.compareTo(that) == 0; 1103 } 1104 1105 public boolean equals(Object that) { 1106 try { 1107 return equals((Configuration)that); 1108 } catch (ClassCastException e) { 1109 } 1110 return false; 1111 } 1112 1113 public int hashCode() { 1114 int result = 17; 1115 result = 31 * result + Float.floatToIntBits(fontScale); 1116 result = 31 * result + mcc; 1117 result = 31 * result + mnc; 1118 result = 31 * result + (locale != null ? locale.hashCode() : 0); 1119 result = 31 * result + touchscreen; 1120 result = 31 * result + keyboard; 1121 result = 31 * result + keyboardHidden; 1122 result = 31 * result + hardKeyboardHidden; 1123 result = 31 * result + navigation; 1124 result = 31 * result + navigationHidden; 1125 result = 31 * result + orientation; 1126 result = 31 * result + screenLayout; 1127 result = 31 * result + uiMode; 1128 result = 31 * result + screenWidthDp; 1129 result = 31 * result + screenHeightDp; 1130 result = 31 * result + smallestScreenWidthDp; 1131 result = 31 * result + densityDpi; 1132 return result; 1133 } 1134 1135 /** 1136 * Set the locale. This is the preferred way for setting up the locale (instead of using the 1137 * direct accessor). This will also set the userLocale and layout direction according to 1138 * the locale. 1139 * 1140 * @param loc The locale. Can be null. 1141 */ 1142 public void setLocale(Locale loc) { 1143 locale = loc; 1144 userSetLocale = true; 1145 setLayoutDirection(locale); 1146 } 1147 1148 /** 1149 * Return the layout direction. Will be either {@link View#LAYOUT_DIRECTION_LTR} or 1150 * {@link View#LAYOUT_DIRECTION_RTL}. 1151 * 1152 * @return the layout direction 1153 */ 1154 public int getLayoutDirection() { 1155 // We need to substract one here as the configuration values are using "0" as undefined thus 1156 // having LRT set to "1" and RTL set to "2" 1157 return ((screenLayout&SCREENLAYOUT_LAYOUTDIR_MASK) >> SCREENLAYOUT_LAYOUTDIR_SHIFT) - 1; 1158 } 1159 1160 /** 1161 * Set the layout direction from the Locale. 1162 * 1163 * @param locale The Locale. If null will set the layout direction to 1164 * {@link View#LAYOUT_DIRECTION_LTR}. If not null will set it to the layout direction 1165 * corresponding to the Locale. 1166 * 1167 * @see {@link View#LAYOUT_DIRECTION_LTR} and {@link View#LAYOUT_DIRECTION_RTL} 1168 */ 1169 public void setLayoutDirection(Locale locale) { 1170 // There is a "1" difference between the configuration values for 1171 // layout direction and View constants for layout direction, just add "1". 1172 final int layoutDirection = 1 + LocaleUtil.getLayoutDirectionFromLocale(locale); 1173 screenLayout = (screenLayout&~SCREENLAYOUT_LAYOUTDIR_MASK)| 1174 (layoutDirection << SCREENLAYOUT_LAYOUTDIR_SHIFT); 1175 } 1176 1177 private static int getScreenLayoutNoDirection(int screenLayout) { 1178 return screenLayout&~SCREENLAYOUT_LAYOUTDIR_MASK; 1179 } 1180} 1181