Configuration.java revision 44fcb83b38b062a650ddf556fe7f5e34905df9ea
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; 23 24import java.util.Locale; 25 26/** 27 * This class describes all device configuration information that can 28 * impact the resources the application retrieves. This includes both 29 * user-specified configuration options (locale and scaling) as well 30 * as device configurations (such as input modes, screen size and screen orientation). 31 * <p>You can acquire this object from {@link Resources}, using {@link 32 * Resources#getConfiguration}. Thus, from an activity, you can get it by chaining the request 33 * with {@link android.app.Activity#getResources}:</p> 34 * <pre>Configuration config = getResources().getConfiguration();</pre> 35 */ 36public final class Configuration implements Parcelable, Comparable<Configuration> { 37 /** 38 * Current user preference for the scaling factor for fonts, relative 39 * to the base density scaling. 40 */ 41 public float fontScale; 42 43 /** 44 * IMSI MCC (Mobile Country Code). 0 if undefined. 45 */ 46 public int mcc; 47 48 /** 49 * IMSI MNC (Mobile Network Code). 0 if undefined. 50 */ 51 public int mnc; 52 53 /** 54 * Current user preference for the locale. 55 */ 56 public Locale locale; 57 58 /** 59 * Locale should persist on setting. This is hidden because it is really 60 * questionable whether this is the right way to expose the functionality. 61 * @hide 62 */ 63 public boolean userSetLocale; 64 65 /** Constant for {@link #screenLayout}: bits that encode the size. */ 66 public static final int SCREENLAYOUT_SIZE_MASK = 0x0f; 67 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK} 68 * value indicating that no size has been set. */ 69 public static final int SCREENLAYOUT_SIZE_UNDEFINED = 0x00; 70 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK} 71 * value indicating the screen is at least approximately 320x426 dp units. 72 * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting 73 * Multiple Screens</a> for more information. */ 74 public static final int SCREENLAYOUT_SIZE_SMALL = 0x01; 75 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK} 76 * value indicating the screen is at least approximately 320x470 dp units. 77 * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting 78 * Multiple Screens</a> for more information. */ 79 public static final int SCREENLAYOUT_SIZE_NORMAL = 0x02; 80 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK} 81 * value indicating the screen is at least approximately 480x640 dp units. 82 * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting 83 * Multiple Screens</a> for more information. */ 84 public static final int SCREENLAYOUT_SIZE_LARGE = 0x03; 85 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK} 86 * value indicating the screen is at least approximately 720x960 dp units. 87 * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting 88 * Multiple Screens</a> for more information.*/ 89 public static final int SCREENLAYOUT_SIZE_XLARGE = 0x04; 90 91 public static final int SCREENLAYOUT_LONG_MASK = 0x30; 92 public static final int SCREENLAYOUT_LONG_UNDEFINED = 0x00; 93 public static final int SCREENLAYOUT_LONG_NO = 0x10; 94 public static final int SCREENLAYOUT_LONG_YES = 0x20; 95 96 /** 97 * Special flag we generate to indicate that the screen layout requires 98 * us to use a compatibility mode for apps that are not modern layout 99 * aware. 100 * @hide 101 */ 102 public static final int SCREENLAYOUT_COMPAT_NEEDED = 0x10000000; 103 104 /** 105 * Bit mask of overall layout of the screen. Currently there are two 106 * fields: 107 * <p>The {@link #SCREENLAYOUT_SIZE_MASK} bits define the overall size 108 * of the screen. They may be one of 109 * {@link #SCREENLAYOUT_SIZE_SMALL}, {@link #SCREENLAYOUT_SIZE_NORMAL}, 110 * {@link #SCREENLAYOUT_SIZE_LARGE}, or {@link #SCREENLAYOUT_SIZE_XLARGE}. 111 * 112 * <p>The {@link #SCREENLAYOUT_LONG_MASK} defines whether the screen 113 * is wider/taller than normal. They may be one of 114 * {@link #SCREENLAYOUT_LONG_NO} or {@link #SCREENLAYOUT_LONG_YES}. 115 * 116 * <p>See <a href="{@docRoot}guide/practices/screens_support.html">Supporting 117 * Multiple Screens</a> for more information. 118 */ 119 public int screenLayout; 120 121 /** 122 * Check if the Configuration's current {@link #screenLayout} is at 123 * least the given size. 124 * 125 * @param size The desired size, either {@link #SCREENLAYOUT_SIZE_SMALL}, 126 * {@link #SCREENLAYOUT_SIZE_NORMAL}, {@link #SCREENLAYOUT_SIZE_LARGE}, or 127 * {@link #SCREENLAYOUT_SIZE_XLARGE}. 128 * @return Returns true if the current screen layout size is at least 129 * the given size. 130 */ 131 public boolean isLayoutSizeAtLeast(int size) { 132 int cur = screenLayout&SCREENLAYOUT_SIZE_MASK; 133 if (cur == SCREENLAYOUT_SIZE_UNDEFINED) return false; 134 return cur >= size; 135 } 136 137 public static final int TOUCHSCREEN_UNDEFINED = 0; 138 public static final int TOUCHSCREEN_NOTOUCH = 1; 139 public static final int TOUCHSCREEN_STYLUS = 2; 140 public static final int TOUCHSCREEN_FINGER = 3; 141 142 /** 143 * The kind of touch screen attached to the device. 144 * One of: {@link #TOUCHSCREEN_NOTOUCH}, {@link #TOUCHSCREEN_STYLUS}, 145 * {@link #TOUCHSCREEN_FINGER}. 146 */ 147 public int touchscreen; 148 149 public static final int KEYBOARD_UNDEFINED = 0; 150 public static final int KEYBOARD_NOKEYS = 1; 151 public static final int KEYBOARD_QWERTY = 2; 152 public static final int KEYBOARD_12KEY = 3; 153 154 /** 155 * The kind of keyboard attached to the device. 156 * One of: {@link #KEYBOARD_NOKEYS}, {@link #KEYBOARD_QWERTY}, 157 * {@link #KEYBOARD_12KEY}. 158 */ 159 public int keyboard; 160 161 public static final int KEYBOARDHIDDEN_UNDEFINED = 0; 162 public static final int KEYBOARDHIDDEN_NO = 1; 163 public static final int KEYBOARDHIDDEN_YES = 2; 164 /** Constant matching actual resource implementation. {@hide} */ 165 public static final int KEYBOARDHIDDEN_SOFT = 3; 166 167 /** 168 * A flag indicating whether any keyboard is available. Unlike 169 * {@link #hardKeyboardHidden}, this also takes into account a soft 170 * keyboard, so if the hard keyboard is hidden but there is soft 171 * keyboard available, it will be set to NO. Value is one of: 172 * {@link #KEYBOARDHIDDEN_NO}, {@link #KEYBOARDHIDDEN_YES}. 173 */ 174 public int keyboardHidden; 175 176 public static final int HARDKEYBOARDHIDDEN_UNDEFINED = 0; 177 public static final int HARDKEYBOARDHIDDEN_NO = 1; 178 public static final int HARDKEYBOARDHIDDEN_YES = 2; 179 180 /** 181 * A flag indicating whether the hard keyboard has been hidden. This will 182 * be set on a device with a mechanism to hide the keyboard from the 183 * user, when that mechanism is closed. One of: 184 * {@link #HARDKEYBOARDHIDDEN_NO}, {@link #HARDKEYBOARDHIDDEN_YES}. 185 */ 186 public int hardKeyboardHidden; 187 188 public static final int NAVIGATION_UNDEFINED = 0; 189 public static final int NAVIGATION_NONAV = 1; 190 public static final int NAVIGATION_DPAD = 2; 191 public static final int NAVIGATION_TRACKBALL = 3; 192 public static final int NAVIGATION_WHEEL = 4; 193 194 /** 195 * The kind of navigation method available on the device. 196 * One of: {@link #NAVIGATION_NONAV}, {@link #NAVIGATION_DPAD}, 197 * {@link #NAVIGATION_TRACKBALL}, {@link #NAVIGATION_WHEEL}. 198 */ 199 public int navigation; 200 201 public static final int NAVIGATIONHIDDEN_UNDEFINED = 0; 202 public static final int NAVIGATIONHIDDEN_NO = 1; 203 public static final int NAVIGATIONHIDDEN_YES = 2; 204 205 /** 206 * A flag indicating whether any 5-way or DPAD navigation available. 207 * This will be set on a device with a mechanism to hide the navigation 208 * controls from the user, when that mechanism is closed. One of: 209 * {@link #NAVIGATIONHIDDEN_NO}, {@link #NAVIGATIONHIDDEN_YES}. 210 */ 211 public int navigationHidden; 212 213 public static final int ORIENTATION_UNDEFINED = 0; 214 public static final int ORIENTATION_PORTRAIT = 1; 215 public static final int ORIENTATION_LANDSCAPE = 2; 216 public static final int ORIENTATION_SQUARE = 3; 217 218 /** 219 * Overall orientation of the screen. May be one of 220 * {@link #ORIENTATION_LANDSCAPE}, {@link #ORIENTATION_PORTRAIT}, 221 * or {@link #ORIENTATION_SQUARE}. 222 */ 223 public int orientation; 224 225 public static final int UI_MODE_TYPE_MASK = 0x0f; 226 public static final int UI_MODE_TYPE_UNDEFINED = 0x00; 227 public static final int UI_MODE_TYPE_NORMAL = 0x01; 228 public static final int UI_MODE_TYPE_DESK = 0x02; 229 public static final int UI_MODE_TYPE_CAR = 0x03; 230 public static final int UI_MODE_TYPE_TELEVISION = 0x04; 231 public static final int UI_MODE_TYPE_APPLIANCE = 0x05; 232 233 public static final int UI_MODE_NIGHT_MASK = 0x30; 234 public static final int UI_MODE_NIGHT_UNDEFINED = 0x00; 235 public static final int UI_MODE_NIGHT_NO = 0x10; 236 public static final int UI_MODE_NIGHT_YES = 0x20; 237 238 /** 239 * Bit mask of the ui mode. Currently there are two fields: 240 * <p>The {@link #UI_MODE_TYPE_MASK} bits define the overall ui mode of the 241 * device. They may be one of {@link #UI_MODE_TYPE_UNDEFINED}, 242 * {@link #UI_MODE_TYPE_NORMAL}, {@link #UI_MODE_TYPE_DESK}, 243 * {@link #UI_MODE_TYPE_CAR}, {@link #UI_MODE_TYPE_TELEVISION}, or 244 * {@link #UI_MODE_TYPE_APPLIANCE}. 245 * 246 * <p>The {@link #UI_MODE_NIGHT_MASK} defines whether the screen 247 * is in a special mode. They may be one of {@link #UI_MODE_NIGHT_UNDEFINED}, 248 * {@link #UI_MODE_NIGHT_NO} or {@link #UI_MODE_NIGHT_YES}. 249 */ 250 public int uiMode; 251 252 public static final int SCREEN_WIDTH_DP_UNDEFINED = 0; 253 254 /** 255 * The current width of the available screen space, in dp units. 256 */ 257 public int screenWidthDp; 258 259 public static final int SCREEN_HEIGHT_DP_UNDEFINED = 0; 260 261 /** 262 * The current height of the available screen space, in dp units. 263 */ 264 public int screenHeightDp; 265 266 public static final int SMALLEST_SCREEN_WIDTH_DP_UNDEFINED = 0; 267 268 /** 269 * The smallest screen size an application will see in normal operation. 270 * This is the smallest value of both screenWidthDp and screenHeightDp 271 * in both portrait and landscape. 272 */ 273 public int smallestScreenWidthDp; 274 275 /** @hide Hack to get this information from WM to app running in compat mode. */ 276 public int compatScreenWidthDp; 277 /** @hide Hack to get this information from WM to app running in compat mode. */ 278 public int compatScreenHeightDp; 279 /** @hide Hack to get this information from WM to app running in compat mode. */ 280 public int compatSmallestScreenWidthDp; 281 282 /** 283 * @hide The text layout direction associated to the current Locale 284 */ 285 public int textLayoutDirection; 286 287 /** 288 * @hide Internal book-keeping. 289 */ 290 public int seq; 291 292 /** 293 * Construct an invalid Configuration. You must call {@link #setToDefaults} 294 * for this object to be valid. {@more} 295 */ 296 public Configuration() { 297 setToDefaults(); 298 } 299 300 /** 301 * Makes a deep copy suitable for modification. 302 */ 303 public Configuration(Configuration o) { 304 setTo(o); 305 } 306 307 public void setTo(Configuration o) { 308 fontScale = o.fontScale; 309 mcc = o.mcc; 310 mnc = o.mnc; 311 if (o.locale != null) { 312 locale = (Locale) o.locale.clone(); 313 textLayoutDirection = o.textLayoutDirection; 314 } 315 userSetLocale = o.userSetLocale; 316 touchscreen = o.touchscreen; 317 keyboard = o.keyboard; 318 keyboardHidden = o.keyboardHidden; 319 hardKeyboardHidden = o.hardKeyboardHidden; 320 navigation = o.navigation; 321 navigationHidden = o.navigationHidden; 322 orientation = o.orientation; 323 screenLayout = o.screenLayout; 324 uiMode = o.uiMode; 325 screenWidthDp = o.screenWidthDp; 326 screenHeightDp = o.screenHeightDp; 327 smallestScreenWidthDp = o.smallestScreenWidthDp; 328 compatScreenWidthDp = o.compatScreenWidthDp; 329 compatScreenHeightDp = o.compatScreenHeightDp; 330 compatSmallestScreenWidthDp = o.compatSmallestScreenWidthDp; 331 seq = o.seq; 332 } 333 334 public String toString() { 335 StringBuilder sb = new StringBuilder(128); 336 sb.append("{"); 337 sb.append(fontScale); 338 sb.append(" "); 339 sb.append(mcc); 340 sb.append("mcc"); 341 sb.append(mnc); 342 sb.append("mnc"); 343 if (locale != null) { 344 sb.append(" "); 345 sb.append(locale); 346 } else { 347 sb.append(" (no locale)"); 348 } 349 switch (textLayoutDirection) { 350 case LocaleUtil.TEXT_LAYOUT_DIRECTION_RTL_DO_NOT_USE: sb.append(" rtl"); break; 351 default: sb.append(" layoutdir="); sb.append(textLayoutDirection); break; 352 } 353 if (smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED) { 354 sb.append(" sw"); sb.append(smallestScreenWidthDp); sb.append("dp"); 355 } else { 356 sb.append(" ?swdp"); 357 } 358 if (screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED) { 359 sb.append(" w"); sb.append(screenWidthDp); sb.append("dp"); 360 } else { 361 sb.append(" ?wdp"); 362 } 363 if (screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED) { 364 sb.append(" h"); sb.append(screenHeightDp); sb.append("dp"); 365 } else { 366 sb.append(" ?hdp"); 367 } 368 switch ((screenLayout&SCREENLAYOUT_SIZE_MASK)) { 369 case SCREENLAYOUT_SIZE_UNDEFINED: sb.append(" ?lsize"); break; 370 case SCREENLAYOUT_SIZE_SMALL: sb.append(" smll"); break; 371 case SCREENLAYOUT_SIZE_NORMAL: sb.append(" nrml"); break; 372 case SCREENLAYOUT_SIZE_LARGE: sb.append(" lrg"); break; 373 case SCREENLAYOUT_SIZE_XLARGE: sb.append(" xlrg"); break; 374 default: sb.append(" layoutSize="); 375 sb.append(screenLayout&SCREENLAYOUT_SIZE_MASK); break; 376 } 377 switch ((screenLayout&SCREENLAYOUT_LONG_MASK)) { 378 case SCREENLAYOUT_LONG_UNDEFINED: sb.append(" ?long"); break; 379 case SCREENLAYOUT_LONG_NO: /* not-long is not interesting to print */ break; 380 case SCREENLAYOUT_LONG_YES: sb.append(" long"); break; 381 default: sb.append(" layoutLong="); 382 sb.append(screenLayout&SCREENLAYOUT_LONG_MASK); break; 383 } 384 switch (orientation) { 385 case ORIENTATION_UNDEFINED: sb.append(" ?orien"); break; 386 case ORIENTATION_LANDSCAPE: sb.append(" land"); break; 387 case ORIENTATION_PORTRAIT: sb.append(" port"); break; 388 default: sb.append(" orien="); sb.append(orientation); break; 389 } 390 switch ((uiMode&UI_MODE_TYPE_MASK)) { 391 case UI_MODE_TYPE_UNDEFINED: sb.append(" ?uimode"); break; 392 case UI_MODE_TYPE_NORMAL: /* normal is not interesting to print */ break; 393 case UI_MODE_TYPE_DESK: sb.append(" desk"); break; 394 case UI_MODE_TYPE_CAR: sb.append(" car"); break; 395 case UI_MODE_TYPE_TELEVISION: sb.append(" television"); break; 396 case UI_MODE_TYPE_APPLIANCE: sb.append(" appliance"); break; 397 default: sb.append(" uimode="); sb.append(uiMode&UI_MODE_TYPE_MASK); break; 398 } 399 switch ((uiMode&UI_MODE_NIGHT_MASK)) { 400 case UI_MODE_NIGHT_UNDEFINED: sb.append(" ?night"); break; 401 case UI_MODE_NIGHT_NO: /* not-night is not interesting to print */ break; 402 case UI_MODE_NIGHT_YES: sb.append(" night"); break; 403 default: sb.append(" night="); sb.append(uiMode&UI_MODE_NIGHT_MASK); break; 404 } 405 switch (touchscreen) { 406 case TOUCHSCREEN_UNDEFINED: sb.append(" ?touch"); break; 407 case TOUCHSCREEN_NOTOUCH: sb.append(" -touch"); break; 408 case TOUCHSCREEN_STYLUS: sb.append(" stylus"); break; 409 case TOUCHSCREEN_FINGER: sb.append(" finger"); break; 410 default: sb.append(" touch="); sb.append(touchscreen); break; 411 } 412 switch (keyboard) { 413 case KEYBOARD_UNDEFINED: sb.append(" ?keyb"); break; 414 case KEYBOARD_NOKEYS: sb.append(" -keyb"); break; 415 case KEYBOARD_QWERTY: sb.append(" qwerty"); break; 416 case KEYBOARD_12KEY: sb.append(" 12key"); break; 417 default: sb.append(" keys="); sb.append(keyboard); break; 418 } 419 switch (keyboardHidden) { 420 case KEYBOARDHIDDEN_UNDEFINED: sb.append("/?"); break; 421 case KEYBOARDHIDDEN_NO: sb.append("/v"); break; 422 case KEYBOARDHIDDEN_YES: sb.append("/h"); break; 423 case KEYBOARDHIDDEN_SOFT: sb.append("/s"); break; 424 default: sb.append("/"); sb.append(keyboardHidden); break; 425 } 426 switch (hardKeyboardHidden) { 427 case HARDKEYBOARDHIDDEN_UNDEFINED: sb.append("/?"); break; 428 case HARDKEYBOARDHIDDEN_NO: sb.append("/v"); break; 429 case HARDKEYBOARDHIDDEN_YES: sb.append("/h"); break; 430 default: sb.append("/"); sb.append(hardKeyboardHidden); break; 431 } 432 switch (navigation) { 433 case NAVIGATION_UNDEFINED: sb.append(" ?nav"); break; 434 case NAVIGATION_NONAV: sb.append(" -nav"); break; 435 case NAVIGATION_DPAD: sb.append(" dpad"); break; 436 case NAVIGATION_TRACKBALL: sb.append(" tball"); break; 437 case NAVIGATION_WHEEL: sb.append(" wheel"); break; 438 default: sb.append(" nav="); sb.append(navigation); break; 439 } 440 switch (navigationHidden) { 441 case NAVIGATIONHIDDEN_UNDEFINED: sb.append("/?"); break; 442 case NAVIGATIONHIDDEN_NO: sb.append("/v"); break; 443 case NAVIGATIONHIDDEN_YES: sb.append("/h"); break; 444 default: sb.append("/"); sb.append(navigationHidden); break; 445 } 446 if (seq != 0) { 447 sb.append(" s."); 448 sb.append(seq); 449 } 450 sb.append('}'); 451 return sb.toString(); 452 } 453 454 /** 455 * Set this object to the system defaults. 456 */ 457 public void setToDefaults() { 458 fontScale = 1; 459 mcc = mnc = 0; 460 locale = null; 461 userSetLocale = false; 462 touchscreen = TOUCHSCREEN_UNDEFINED; 463 keyboard = KEYBOARD_UNDEFINED; 464 keyboardHidden = KEYBOARDHIDDEN_UNDEFINED; 465 hardKeyboardHidden = HARDKEYBOARDHIDDEN_UNDEFINED; 466 navigation = NAVIGATION_UNDEFINED; 467 navigationHidden = NAVIGATIONHIDDEN_UNDEFINED; 468 orientation = ORIENTATION_UNDEFINED; 469 screenLayout = SCREENLAYOUT_SIZE_UNDEFINED; 470 uiMode = UI_MODE_TYPE_UNDEFINED; 471 screenWidthDp = compatScreenWidthDp = SCREEN_WIDTH_DP_UNDEFINED; 472 screenHeightDp = compatScreenHeightDp = SCREEN_HEIGHT_DP_UNDEFINED; 473 smallestScreenWidthDp = compatSmallestScreenWidthDp = SMALLEST_SCREEN_WIDTH_DP_UNDEFINED; 474 textLayoutDirection = LocaleUtil.TEXT_LAYOUT_DIRECTION_LTR_DO_NOT_USE; 475 seq = 0; 476 } 477 478 /** {@hide} */ 479 @Deprecated public void makeDefault() { 480 setToDefaults(); 481 } 482 483 /** 484 * Copy the fields from delta into this Configuration object, keeping 485 * track of which ones have changed. Any undefined fields in 486 * <var>delta</var> are ignored and not copied in to the current 487 * Configuration. 488 * @return Returns a bit mask of the changed fields, as per 489 * {@link #diff}. 490 */ 491 public int updateFrom(Configuration delta) { 492 int changed = 0; 493 if (delta.fontScale > 0 && fontScale != delta.fontScale) { 494 changed |= ActivityInfo.CONFIG_FONT_SCALE; 495 fontScale = delta.fontScale; 496 } 497 if (delta.mcc != 0 && mcc != delta.mcc) { 498 changed |= ActivityInfo.CONFIG_MCC; 499 mcc = delta.mcc; 500 } 501 if (delta.mnc != 0 && mnc != delta.mnc) { 502 changed |= ActivityInfo.CONFIG_MNC; 503 mnc = delta.mnc; 504 } 505 if (delta.locale != null 506 && (locale == null || !locale.equals(delta.locale))) { 507 changed |= ActivityInfo.CONFIG_LOCALE; 508 locale = delta.locale != null 509 ? (Locale) delta.locale.clone() : null; 510 textLayoutDirection = LocaleUtil.getLayoutDirectionFromLocale(locale); 511 } 512 if (delta.userSetLocale && (!userSetLocale || ((changed & ActivityInfo.CONFIG_LOCALE) != 0))) 513 { 514 userSetLocale = true; 515 changed |= ActivityInfo.CONFIG_LOCALE; 516 } 517 if (delta.touchscreen != TOUCHSCREEN_UNDEFINED 518 && touchscreen != delta.touchscreen) { 519 changed |= ActivityInfo.CONFIG_TOUCHSCREEN; 520 touchscreen = delta.touchscreen; 521 } 522 if (delta.keyboard != KEYBOARD_UNDEFINED 523 && keyboard != delta.keyboard) { 524 changed |= ActivityInfo.CONFIG_KEYBOARD; 525 keyboard = delta.keyboard; 526 } 527 if (delta.keyboardHidden != KEYBOARDHIDDEN_UNDEFINED 528 && keyboardHidden != delta.keyboardHidden) { 529 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 530 keyboardHidden = delta.keyboardHidden; 531 } 532 if (delta.hardKeyboardHidden != HARDKEYBOARDHIDDEN_UNDEFINED 533 && hardKeyboardHidden != delta.hardKeyboardHidden) { 534 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 535 hardKeyboardHidden = delta.hardKeyboardHidden; 536 } 537 if (delta.navigation != NAVIGATION_UNDEFINED 538 && navigation != delta.navigation) { 539 changed |= ActivityInfo.CONFIG_NAVIGATION; 540 navigation = delta.navigation; 541 } 542 if (delta.navigationHidden != NAVIGATIONHIDDEN_UNDEFINED 543 && navigationHidden != delta.navigationHidden) { 544 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 545 navigationHidden = delta.navigationHidden; 546 } 547 if (delta.orientation != ORIENTATION_UNDEFINED 548 && orientation != delta.orientation) { 549 changed |= ActivityInfo.CONFIG_ORIENTATION; 550 orientation = delta.orientation; 551 } 552 if (delta.screenLayout != SCREENLAYOUT_SIZE_UNDEFINED 553 && screenLayout != delta.screenLayout) { 554 changed |= ActivityInfo.CONFIG_SCREEN_LAYOUT; 555 screenLayout = delta.screenLayout; 556 } 557 if (delta.uiMode != (UI_MODE_TYPE_UNDEFINED|UI_MODE_NIGHT_UNDEFINED) 558 && uiMode != delta.uiMode) { 559 changed |= ActivityInfo.CONFIG_UI_MODE; 560 if ((delta.uiMode&UI_MODE_TYPE_MASK) != UI_MODE_TYPE_UNDEFINED) { 561 uiMode = (uiMode&~UI_MODE_TYPE_MASK) 562 | (delta.uiMode&UI_MODE_TYPE_MASK); 563 } 564 if ((delta.uiMode&UI_MODE_NIGHT_MASK) != UI_MODE_NIGHT_UNDEFINED) { 565 uiMode = (uiMode&~UI_MODE_NIGHT_MASK) 566 | (delta.uiMode&UI_MODE_NIGHT_MASK); 567 } 568 } 569 if (delta.screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED 570 && screenWidthDp != delta.screenWidthDp) { 571 changed |= ActivityInfo.CONFIG_SCREEN_SIZE; 572 screenWidthDp = delta.screenWidthDp; 573 } 574 if (delta.screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED 575 && screenHeightDp != delta.screenHeightDp) { 576 changed |= ActivityInfo.CONFIG_SCREEN_SIZE; 577 screenHeightDp = delta.screenHeightDp; 578 } 579 if (delta.smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED) { 580 smallestScreenWidthDp = delta.smallestScreenWidthDp; 581 } 582 if (delta.compatScreenWidthDp != SCREEN_WIDTH_DP_UNDEFINED) { 583 compatScreenWidthDp = delta.compatScreenWidthDp; 584 } 585 if (delta.compatScreenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED) { 586 compatScreenHeightDp = delta.compatScreenHeightDp; 587 } 588 if (delta.compatSmallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED) { 589 compatSmallestScreenWidthDp = delta.compatSmallestScreenWidthDp; 590 } 591 592 if (delta.seq != 0) { 593 seq = delta.seq; 594 } 595 596 return changed; 597 } 598 599 /** 600 * Return a bit mask of the differences between this Configuration 601 * object and the given one. Does not change the values of either. Any 602 * undefined fields in <var>delta</var> are ignored. 603 * @return Returns a bit mask indicating which configuration 604 * values has changed, containing any combination of 605 * {@link android.content.pm.ActivityInfo#CONFIG_FONT_SCALE 606 * PackageManager.ActivityInfo.CONFIG_FONT_SCALE}, 607 * {@link android.content.pm.ActivityInfo#CONFIG_MCC 608 * PackageManager.ActivityInfo.CONFIG_MCC}, 609 * {@link android.content.pm.ActivityInfo#CONFIG_MNC 610 * PackageManager.ActivityInfo.CONFIG_MNC}, 611 * {@link android.content.pm.ActivityInfo#CONFIG_LOCALE 612 * PackageManager.ActivityInfo.CONFIG_LOCALE}, 613 * {@link android.content.pm.ActivityInfo#CONFIG_TOUCHSCREEN 614 * PackageManager.ActivityInfo.CONFIG_TOUCHSCREEN}, 615 * {@link android.content.pm.ActivityInfo#CONFIG_KEYBOARD 616 * PackageManager.ActivityInfo.CONFIG_KEYBOARD}, 617 * {@link android.content.pm.ActivityInfo#CONFIG_NAVIGATION 618 * PackageManager.ActivityInfo.CONFIG_NAVIGATION}, 619 * {@link android.content.pm.ActivityInfo#CONFIG_ORIENTATION 620 * PackageManager.ActivityInfo.CONFIG_ORIENTATION}, 621 * {@link android.content.pm.ActivityInfo#CONFIG_SCREEN_LAYOUT 622 * PackageManager.ActivityInfo.CONFIG_SCREEN_LAYOUT}, or 623 * {@link android.content.pm.ActivityInfo#CONFIG_SCREEN_SIZE 624 * PackageManager.ActivityInfo.CONFIG_SCREEN_SIZE}, or 625 * {@link android.content.pm.ActivityInfo#CONFIG_SMALLEST_SCREEN_SIZE 626 * PackageManager.ActivityInfo.CONFIG_SMALLEST_SCREEN_SIZE}. 627 */ 628 public int diff(Configuration delta) { 629 int changed = 0; 630 if (delta.fontScale > 0 && fontScale != delta.fontScale) { 631 changed |= ActivityInfo.CONFIG_FONT_SCALE; 632 } 633 if (delta.mcc != 0 && mcc != delta.mcc) { 634 changed |= ActivityInfo.CONFIG_MCC; 635 } 636 if (delta.mnc != 0 && mnc != delta.mnc) { 637 changed |= ActivityInfo.CONFIG_MNC; 638 } 639 if (delta.locale != null 640 && (locale == null || !locale.equals(delta.locale))) { 641 changed |= ActivityInfo.CONFIG_LOCALE; 642 } 643 if (delta.touchscreen != TOUCHSCREEN_UNDEFINED 644 && touchscreen != delta.touchscreen) { 645 changed |= ActivityInfo.CONFIG_TOUCHSCREEN; 646 } 647 if (delta.keyboard != KEYBOARD_UNDEFINED 648 && keyboard != delta.keyboard) { 649 changed |= ActivityInfo.CONFIG_KEYBOARD; 650 } 651 if (delta.keyboardHidden != KEYBOARDHIDDEN_UNDEFINED 652 && keyboardHidden != delta.keyboardHidden) { 653 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 654 } 655 if (delta.hardKeyboardHidden != HARDKEYBOARDHIDDEN_UNDEFINED 656 && hardKeyboardHidden != delta.hardKeyboardHidden) { 657 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 658 } 659 if (delta.navigation != NAVIGATION_UNDEFINED 660 && navigation != delta.navigation) { 661 changed |= ActivityInfo.CONFIG_NAVIGATION; 662 } 663 if (delta.navigationHidden != NAVIGATIONHIDDEN_UNDEFINED 664 && navigationHidden != delta.navigationHidden) { 665 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 666 } 667 if (delta.orientation != ORIENTATION_UNDEFINED 668 && orientation != delta.orientation) { 669 changed |= ActivityInfo.CONFIG_ORIENTATION; 670 } 671 if (delta.screenLayout != SCREENLAYOUT_SIZE_UNDEFINED 672 && screenLayout != delta.screenLayout) { 673 changed |= ActivityInfo.CONFIG_SCREEN_LAYOUT; 674 } 675 if (delta.uiMode != (UI_MODE_TYPE_UNDEFINED|UI_MODE_NIGHT_UNDEFINED) 676 && uiMode != delta.uiMode) { 677 changed |= ActivityInfo.CONFIG_UI_MODE; 678 } 679 if (delta.screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED 680 && screenWidthDp != delta.screenWidthDp) { 681 changed |= ActivityInfo.CONFIG_SCREEN_SIZE; 682 } 683 if (delta.screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED 684 && screenHeightDp != delta.screenHeightDp) { 685 changed |= ActivityInfo.CONFIG_SCREEN_SIZE; 686 } 687 if (delta.smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED 688 && smallestScreenWidthDp != delta.smallestScreenWidthDp) { 689 changed |= ActivityInfo.CONFIG_SMALLEST_SCREEN_SIZE; 690 } 691 692 return changed; 693 } 694 695 /** 696 * Determine if a new resource needs to be loaded from the bit set of 697 * configuration changes returned by {@link #updateFrom(Configuration)}. 698 * 699 * @param configChanges The mask of changes configurations as returned by 700 * {@link #updateFrom(Configuration)}. 701 * @param interestingChanges The configuration changes that the resource 702 * can handled, as given in {@link android.util.TypedValue#changingConfigurations}. 703 * 704 * @return Return true if the resource needs to be loaded, else false. 705 */ 706 public static boolean needNewResources(int configChanges, int interestingChanges) { 707 return (configChanges & (interestingChanges|ActivityInfo.CONFIG_FONT_SCALE)) != 0; 708 } 709 710 /** 711 * @hide Return true if the sequence of 'other' is better than this. Assumes 712 * that 'this' is your current sequence and 'other' is a new one you have 713 * received some how and want to compare with what you have. 714 */ 715 public boolean isOtherSeqNewer(Configuration other) { 716 if (other == null) { 717 // Sanity check. 718 return false; 719 } 720 if (other.seq == 0) { 721 // If the other sequence is not specified, then we must assume 722 // it is newer since we don't know any better. 723 return true; 724 } 725 if (seq == 0) { 726 // If this sequence is not specified, then we also consider the 727 // other is better. Yes we have a preference for other. Sue us. 728 return true; 729 } 730 int diff = other.seq - seq; 731 if (diff > 0x10000) { 732 // If there has been a sufficiently large jump, assume the 733 // sequence has wrapped around. 734 return false; 735 } 736 return diff > 0; 737 } 738 739 /** 740 * Parcelable methods 741 */ 742 public int describeContents() { 743 return 0; 744 } 745 746 public void writeToParcel(Parcel dest, int flags) { 747 dest.writeFloat(fontScale); 748 dest.writeInt(mcc); 749 dest.writeInt(mnc); 750 if (locale == null) { 751 dest.writeInt(0); 752 } else { 753 dest.writeInt(1); 754 dest.writeString(locale.getLanguage()); 755 dest.writeString(locale.getCountry()); 756 dest.writeString(locale.getVariant()); 757 } 758 if(userSetLocale) { 759 dest.writeInt(1); 760 } else { 761 dest.writeInt(0); 762 } 763 dest.writeInt(touchscreen); 764 dest.writeInt(keyboard); 765 dest.writeInt(keyboardHidden); 766 dest.writeInt(hardKeyboardHidden); 767 dest.writeInt(navigation); 768 dest.writeInt(navigationHidden); 769 dest.writeInt(orientation); 770 dest.writeInt(screenLayout); 771 dest.writeInt(uiMode); 772 dest.writeInt(screenWidthDp); 773 dest.writeInt(screenHeightDp); 774 dest.writeInt(smallestScreenWidthDp); 775 dest.writeInt(compatScreenWidthDp); 776 dest.writeInt(compatScreenHeightDp); 777 dest.writeInt(compatSmallestScreenWidthDp); 778 dest.writeInt(textLayoutDirection); 779 dest.writeInt(seq); 780 } 781 782 public void readFromParcel(Parcel source) { 783 fontScale = source.readFloat(); 784 mcc = source.readInt(); 785 mnc = source.readInt(); 786 if (source.readInt() != 0) { 787 locale = new Locale(source.readString(), source.readString(), 788 source.readString()); 789 } 790 userSetLocale = (source.readInt()==1); 791 touchscreen = source.readInt(); 792 keyboard = source.readInt(); 793 keyboardHidden = source.readInt(); 794 hardKeyboardHidden = source.readInt(); 795 navigation = source.readInt(); 796 navigationHidden = source.readInt(); 797 orientation = source.readInt(); 798 screenLayout = source.readInt(); 799 uiMode = source.readInt(); 800 screenWidthDp = source.readInt(); 801 screenHeightDp = source.readInt(); 802 smallestScreenWidthDp = source.readInt(); 803 compatScreenWidthDp = source.readInt(); 804 compatScreenHeightDp = source.readInt(); 805 compatSmallestScreenWidthDp = source.readInt(); 806 textLayoutDirection = source.readInt(); 807 seq = source.readInt(); 808 } 809 810 public static final Parcelable.Creator<Configuration> CREATOR 811 = new Parcelable.Creator<Configuration>() { 812 public Configuration createFromParcel(Parcel source) { 813 return new Configuration(source); 814 } 815 816 public Configuration[] newArray(int size) { 817 return new Configuration[size]; 818 } 819 }; 820 821 /** 822 * Construct this Configuration object, reading from the Parcel. 823 */ 824 private Configuration(Parcel source) { 825 readFromParcel(source); 826 } 827 828 public int compareTo(Configuration that) { 829 int n; 830 float a = this.fontScale; 831 float b = that.fontScale; 832 if (a < b) return -1; 833 if (a > b) return 1; 834 n = this.mcc - that.mcc; 835 if (n != 0) return n; 836 n = this.mnc - that.mnc; 837 if (n != 0) return n; 838 if (this.locale == null) { 839 if (that.locale != null) return 1; 840 } else if (that.locale == null) { 841 return -1; 842 } else { 843 n = this.locale.getLanguage().compareTo(that.locale.getLanguage()); 844 if (n != 0) return n; 845 n = this.locale.getCountry().compareTo(that.locale.getCountry()); 846 if (n != 0) return n; 847 n = this.locale.getVariant().compareTo(that.locale.getVariant()); 848 if (n != 0) return n; 849 } 850 n = this.touchscreen - that.touchscreen; 851 if (n != 0) return n; 852 n = this.keyboard - that.keyboard; 853 if (n != 0) return n; 854 n = this.keyboardHidden - that.keyboardHidden; 855 if (n != 0) return n; 856 n = this.hardKeyboardHidden - that.hardKeyboardHidden; 857 if (n != 0) return n; 858 n = this.navigation - that.navigation; 859 if (n != 0) return n; 860 n = this.navigationHidden - that.navigationHidden; 861 if (n != 0) return n; 862 n = this.orientation - that.orientation; 863 if (n != 0) return n; 864 n = this.screenLayout - that.screenLayout; 865 if (n != 0) return n; 866 n = this.uiMode - that.uiMode; 867 if (n != 0) return n; 868 n = this.screenWidthDp - that.screenWidthDp; 869 if (n != 0) return n; 870 n = this.screenHeightDp - that.screenHeightDp; 871 if (n != 0) return n; 872 n = this.smallestScreenWidthDp - that.smallestScreenWidthDp; 873 //if (n != 0) return n; 874 return n; 875 } 876 877 public boolean equals(Configuration that) { 878 if (that == null) return false; 879 if (that == this) return true; 880 return this.compareTo(that) == 0; 881 } 882 883 public boolean equals(Object that) { 884 try { 885 return equals((Configuration)that); 886 } catch (ClassCastException e) { 887 } 888 return false; 889 } 890 891 public int hashCode() { 892 int result = 17; 893 result = 31 * result + Float.floatToIntBits(fontScale); 894 result = 31 * result + mcc; 895 result = 31 * result + mnc; 896 result = 31 * result + (locale != null ? locale.hashCode() : 0); 897 result = 31 * result + touchscreen; 898 result = 31 * result + keyboard; 899 result = 31 * result + keyboardHidden; 900 result = 31 * result + hardKeyboardHidden; 901 result = 31 * result + navigation; 902 result = 31 * result + navigationHidden; 903 result = 31 * result + orientation; 904 result = 31 * result + screenLayout; 905 result = 31 * result + uiMode; 906 result = 31 * result + screenWidthDp; 907 result = 31 * result + screenHeightDp; 908 result = 31 * result + smallestScreenWidthDp; 909 return result; 910 } 911} 912