Configuration.java revision 5fd2169eabd77e6bfafaf456e58051a3bafb2bca
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; 22 23import java.util.Locale; 24 25/** 26 * This class describes all device configuration information that can 27 * impact the resources the application retrieves. This includes both 28 * user-specified configuration options (locale and scaling) as well 29 * as device configurations (such as input modes, screen size and screen orientation). 30 * <p>You can acquire this object from {@link Resources}, using {@link 31 * Resources#getConfiguration}. Thus, from an activity, you can get it by chaining the request 32 * with {@link android.app.Activity#getResources}:</p> 33 * <pre>Configuration config = getResources().getConfiguration();</pre> 34 */ 35public final class Configuration implements Parcelable, Comparable<Configuration> { 36 /** 37 * Current user preference for the scaling factor for fonts, relative 38 * to the base density scaling. 39 */ 40 public float fontScale; 41 42 /** 43 * IMSI MCC (Mobile Country Code). 0 if undefined. 44 */ 45 public int mcc; 46 47 /** 48 * IMSI MNC (Mobile Network Code). 0 if undefined. 49 */ 50 public int mnc; 51 52 /** 53 * Current user preference for the locale. 54 */ 55 public Locale locale; 56 57 /** 58 * Locale should persist on setting. This is hidden because it is really 59 * questionable whether this is the right way to expose the functionality. 60 * @hide 61 */ 62 public boolean userSetLocale; 63 64 /** Constant for {@link #screenLayout}: bits that encode the size. */ 65 public static final int SCREENLAYOUT_SIZE_MASK = 0x0f; 66 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK} 67 * value indicating that no size has been set. */ 68 public static final int SCREENLAYOUT_SIZE_UNDEFINED = 0x00; 69 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK} 70 * value indicating the screen is at least approximately 320x426 dp units. 71 * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting 72 * Multiple Screens</a> for more information. */ 73 public static final int SCREENLAYOUT_SIZE_SMALL = 0x01; 74 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK} 75 * value indicating the screen is at least approximately 320x470 dp units. 76 * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting 77 * Multiple Screens</a> for more information. */ 78 public static final int SCREENLAYOUT_SIZE_NORMAL = 0x02; 79 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK} 80 * value indicating the screen is at least approximately 480x640 dp units. 81 * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting 82 * Multiple Screens</a> for more information. */ 83 public static final int SCREENLAYOUT_SIZE_LARGE = 0x03; 84 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK} 85 * value indicating the screen is at least approximately 720x960 dp units. 86 * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting 87 * Multiple Screens</a> for more information.*/ 88 public static final int SCREENLAYOUT_SIZE_XLARGE = 0x04; 89 90 public static final int SCREENLAYOUT_LONG_MASK = 0x30; 91 public static final int SCREENLAYOUT_LONG_UNDEFINED = 0x00; 92 public static final int SCREENLAYOUT_LONG_NO = 0x10; 93 public static final int SCREENLAYOUT_LONG_YES = 0x20; 94 95 /** 96 * Special flag we generate to indicate that the screen layout requires 97 * us to use a compatibility mode for apps that are not modern layout 98 * aware. 99 * @hide 100 */ 101 public static final int SCREENLAYOUT_COMPAT_NEEDED = 0x10000000; 102 103 /** 104 * Bit mask of overall layout of the screen. Currently there are two 105 * fields: 106 * <p>The {@link #SCREENLAYOUT_SIZE_MASK} bits define the overall size 107 * of the screen. They may be one of 108 * {@link #SCREENLAYOUT_SIZE_SMALL}, {@link #SCREENLAYOUT_SIZE_NORMAL}, 109 * {@link #SCREENLAYOUT_SIZE_LARGE}, or {@link #SCREENLAYOUT_SIZE_XLARGE}. 110 * 111 * <p>The {@link #SCREENLAYOUT_LONG_MASK} defines whether the screen 112 * is wider/taller than normal. They may be one of 113 * {@link #SCREENLAYOUT_LONG_NO} or {@link #SCREENLAYOUT_LONG_YES}. 114 * 115 * <p>See <a href="{@docRoot}guide/practices/screens_support.html">Supporting 116 * Multiple Screens</a> for more information. 117 */ 118 public int screenLayout; 119 120 /** 121 * Check if the Configuration's current {@link #screenLayout} is at 122 * least the given size. 123 * 124 * @param size The desired size, either {@link #SCREENLAYOUT_SIZE_SMALL}, 125 * {@link #SCREENLAYOUT_SIZE_NORMAL}, {@link #SCREENLAYOUT_SIZE_LARGE}, or 126 * {@link #SCREENLAYOUT_SIZE_XLARGE}. 127 * @return Returns true if the current screen layout size is at least 128 * the given size. 129 */ 130 public boolean isLayoutSizeAtLeast(int size) { 131 int cur = screenLayout&SCREENLAYOUT_SIZE_MASK; 132 if (cur == SCREENLAYOUT_SIZE_UNDEFINED) return false; 133 return cur >= size; 134 } 135 136 public static final int TOUCHSCREEN_UNDEFINED = 0; 137 public static final int TOUCHSCREEN_NOTOUCH = 1; 138 public static final int TOUCHSCREEN_STYLUS = 2; 139 public static final int TOUCHSCREEN_FINGER = 3; 140 141 /** 142 * The kind of touch screen attached to the device. 143 * One of: {@link #TOUCHSCREEN_NOTOUCH}, {@link #TOUCHSCREEN_STYLUS}, 144 * {@link #TOUCHSCREEN_FINGER}. 145 */ 146 public int touchscreen; 147 148 public static final int KEYBOARD_UNDEFINED = 0; 149 public static final int KEYBOARD_NOKEYS = 1; 150 public static final int KEYBOARD_QWERTY = 2; 151 public static final int KEYBOARD_12KEY = 3; 152 153 /** 154 * The kind of keyboard attached to the device. 155 * One of: {@link #KEYBOARD_NOKEYS}, {@link #KEYBOARD_QWERTY}, 156 * {@link #KEYBOARD_12KEY}. 157 */ 158 public int keyboard; 159 160 public static final int KEYBOARDHIDDEN_UNDEFINED = 0; 161 public static final int KEYBOARDHIDDEN_NO = 1; 162 public static final int KEYBOARDHIDDEN_YES = 2; 163 /** Constant matching actual resource implementation. {@hide} */ 164 public static final int KEYBOARDHIDDEN_SOFT = 3; 165 166 /** 167 * A flag indicating whether any keyboard is available. Unlike 168 * {@link #hardKeyboardHidden}, this also takes into account a soft 169 * keyboard, so if the hard keyboard is hidden but there is soft 170 * keyboard available, it will be set to NO. Value is one of: 171 * {@link #KEYBOARDHIDDEN_NO}, {@link #KEYBOARDHIDDEN_YES}. 172 */ 173 public int keyboardHidden; 174 175 public static final int HARDKEYBOARDHIDDEN_UNDEFINED = 0; 176 public static final int HARDKEYBOARDHIDDEN_NO = 1; 177 public static final int HARDKEYBOARDHIDDEN_YES = 2; 178 179 /** 180 * A flag indicating whether the hard keyboard has been hidden. This will 181 * be set on a device with a mechanism to hide the keyboard from the 182 * user, when that mechanism is closed. One of: 183 * {@link #HARDKEYBOARDHIDDEN_NO}, {@link #HARDKEYBOARDHIDDEN_YES}. 184 */ 185 public int hardKeyboardHidden; 186 187 public static final int NAVIGATION_UNDEFINED = 0; 188 public static final int NAVIGATION_NONAV = 1; 189 public static final int NAVIGATION_DPAD = 2; 190 public static final int NAVIGATION_TRACKBALL = 3; 191 public static final int NAVIGATION_WHEEL = 4; 192 193 /** 194 * The kind of navigation method available on the device. 195 * One of: {@link #NAVIGATION_NONAV}, {@link #NAVIGATION_DPAD}, 196 * {@link #NAVIGATION_TRACKBALL}, {@link #NAVIGATION_WHEEL}. 197 */ 198 public int navigation; 199 200 public static final int NAVIGATIONHIDDEN_UNDEFINED = 0; 201 public static final int NAVIGATIONHIDDEN_NO = 1; 202 public static final int NAVIGATIONHIDDEN_YES = 2; 203 204 /** 205 * A flag indicating whether any 5-way or DPAD navigation available. 206 * This will be set on a device with a mechanism to hide the navigation 207 * controls from the user, when that mechanism is closed. One of: 208 * {@link #NAVIGATIONHIDDEN_NO}, {@link #NAVIGATIONHIDDEN_YES}. 209 */ 210 public int navigationHidden; 211 212 public static final int ORIENTATION_UNDEFINED = 0; 213 public static final int ORIENTATION_PORTRAIT = 1; 214 public static final int ORIENTATION_LANDSCAPE = 2; 215 public static final int ORIENTATION_SQUARE = 3; 216 217 /** 218 * Overall orientation of the screen. May be one of 219 * {@link #ORIENTATION_LANDSCAPE}, {@link #ORIENTATION_PORTRAIT}, 220 * or {@link #ORIENTATION_SQUARE}. 221 */ 222 public int orientation; 223 224 public static final int UI_MODE_TYPE_MASK = 0x0f; 225 public static final int UI_MODE_TYPE_UNDEFINED = 0x00; 226 public static final int UI_MODE_TYPE_NORMAL = 0x01; 227 public static final int UI_MODE_TYPE_DESK = 0x02; 228 public static final int UI_MODE_TYPE_CAR = 0x03; 229 public static final int UI_MODE_TYPE_TELEVISION = 0x04; 230 231 public static final int UI_MODE_NIGHT_MASK = 0x30; 232 public static final int UI_MODE_NIGHT_UNDEFINED = 0x00; 233 public static final int UI_MODE_NIGHT_NO = 0x10; 234 public static final int UI_MODE_NIGHT_YES = 0x20; 235 236 /** 237 * Bit mask of the ui mode. Currently there are two fields: 238 * <p>The {@link #UI_MODE_TYPE_MASK} bits define the overall ui mode of the 239 * device. They may be one of {@link #UI_MODE_TYPE_UNDEFINED}, 240 * {@link #UI_MODE_TYPE_NORMAL}, {@link #UI_MODE_TYPE_DESK}, 241 * or {@link #UI_MODE_TYPE_CAR}. 242 * 243 * <p>The {@link #UI_MODE_NIGHT_MASK} defines whether the screen 244 * is in a special mode. They may be one of {@link #UI_MODE_NIGHT_UNDEFINED}, 245 * {@link #UI_MODE_NIGHT_NO} or {@link #UI_MODE_NIGHT_YES}. 246 */ 247 public int uiMode; 248 249 public static final int SCREEN_WIDTH_DP_UNDEFINED = 0; 250 251 /** 252 * The current width of the available screen space, in dp units. 253 */ 254 public int screenWidthDp; 255 256 public static final int SCREEN_HEIGHT_DP_UNDEFINED = 0; 257 258 /** 259 * The current height of the available screen space, in dp units. 260 */ 261 public int screenHeightDp; 262 263 public static final int SMALLEST_SCREEN_WIDTH_DP_UNDEFINED = 0; 264 265 /** 266 * The smallest screen size an application will see in normal operation. 267 * This is the smallest value of both screenWidthDp and screenHeightDp 268 * in both portrait and landscape. 269 */ 270 public int smallestScreenWidthDp; 271 272 /** @hide Hack to get this information from WM to app running in compat mode. */ 273 public int compatScreenWidthDp; 274 /** @hide Hack to get this information from WM to app running in compat mode. */ 275 public int compatScreenHeightDp; 276 /** @hide Hack to get this information from WM to app running in compat mode. */ 277 public int compatSmallestScreenWidthDp; 278 279 /** 280 * @hide Internal book-keeping. 281 */ 282 public int seq; 283 284 /** 285 * Construct an invalid Configuration. You must call {@link #setToDefaults} 286 * for this object to be valid. {@more} 287 */ 288 public Configuration() { 289 setToDefaults(); 290 } 291 292 /** 293 * Makes a deep copy suitable for modification. 294 */ 295 public Configuration(Configuration o) { 296 setTo(o); 297 } 298 299 public void setTo(Configuration o) { 300 fontScale = o.fontScale; 301 mcc = o.mcc; 302 mnc = o.mnc; 303 if (o.locale != null) { 304 locale = (Locale) o.locale.clone(); 305 } 306 userSetLocale = o.userSetLocale; 307 touchscreen = o.touchscreen; 308 keyboard = o.keyboard; 309 keyboardHidden = o.keyboardHidden; 310 hardKeyboardHidden = o.hardKeyboardHidden; 311 navigation = o.navigation; 312 navigationHidden = o.navigationHidden; 313 orientation = o.orientation; 314 screenLayout = o.screenLayout; 315 uiMode = o.uiMode; 316 screenWidthDp = o.screenWidthDp; 317 screenHeightDp = o.screenHeightDp; 318 smallestScreenWidthDp = o.smallestScreenWidthDp; 319 compatScreenWidthDp = o.compatScreenWidthDp; 320 compatScreenHeightDp = o.compatScreenHeightDp; 321 compatSmallestScreenWidthDp = o.compatSmallestScreenWidthDp; 322 seq = o.seq; 323 } 324 325 public String toString() { 326 StringBuilder sb = new StringBuilder(128); 327 sb.append("{"); 328 sb.append(fontScale); 329 sb.append(" "); 330 sb.append(mcc); 331 sb.append("mcc"); 332 sb.append(mnc); 333 sb.append("mnc"); 334 if (locale != null) { 335 sb.append(" "); 336 sb.append(locale); 337 } else { 338 sb.append(" (no locale)"); 339 } 340 if (smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED) { 341 sb.append(" sw"); sb.append(smallestScreenWidthDp); sb.append("dp"); 342 } else { 343 sb.append(" ?swdp"); 344 } 345 if (screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED) { 346 sb.append(" w"); sb.append(screenWidthDp); sb.append("dp"); 347 } else { 348 sb.append(" ?wdp"); 349 } 350 if (screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED) { 351 sb.append(" h"); sb.append(screenHeightDp); sb.append("dp"); 352 } else { 353 sb.append(" ?hdp"); 354 } 355 switch ((screenLayout&SCREENLAYOUT_SIZE_MASK)) { 356 case SCREENLAYOUT_SIZE_UNDEFINED: sb.append(" ?lsize"); break; 357 case SCREENLAYOUT_SIZE_SMALL: sb.append(" smll"); break; 358 case SCREENLAYOUT_SIZE_NORMAL: sb.append(" nrml"); break; 359 case SCREENLAYOUT_SIZE_LARGE: sb.append(" lrg"); break; 360 case SCREENLAYOUT_SIZE_XLARGE: sb.append(" xlrg"); break; 361 default: sb.append(" layoutSize="); 362 sb.append(screenLayout&SCREENLAYOUT_SIZE_MASK); break; 363 } 364 switch ((screenLayout&SCREENLAYOUT_LONG_MASK)) { 365 case SCREENLAYOUT_LONG_UNDEFINED: sb.append(" ?long"); break; 366 case SCREENLAYOUT_LONG_NO: /* not-long is not interesting to print */ break; 367 case SCREENLAYOUT_LONG_YES: sb.append(" long"); break; 368 default: sb.append(" layoutLong="); 369 sb.append(screenLayout&SCREENLAYOUT_LONG_MASK); break; 370 } 371 switch (orientation) { 372 case ORIENTATION_UNDEFINED: sb.append(" ?orien"); break; 373 case ORIENTATION_LANDSCAPE: sb.append(" land"); break; 374 case ORIENTATION_PORTRAIT: sb.append(" port"); break; 375 default: sb.append(" orien="); sb.append(orientation); break; 376 } 377 switch ((uiMode&UI_MODE_TYPE_MASK)) { 378 case UI_MODE_TYPE_UNDEFINED: sb.append(" ?uimode"); break; 379 case UI_MODE_TYPE_NORMAL: /* normal is not interesting to print */ break; 380 case UI_MODE_TYPE_DESK: sb.append(" desk"); break; 381 case UI_MODE_TYPE_CAR: sb.append(" car"); break; 382 case UI_MODE_TYPE_TELEVISION: sb.append(" television"); break; 383 default: sb.append(" uimode="); sb.append(uiMode&UI_MODE_TYPE_MASK); break; 384 } 385 switch ((uiMode&UI_MODE_NIGHT_MASK)) { 386 case UI_MODE_NIGHT_UNDEFINED: sb.append(" ?night"); break; 387 case UI_MODE_NIGHT_NO: /* not-night is not interesting to print */ break; 388 case UI_MODE_NIGHT_YES: sb.append(" night"); break; 389 default: sb.append(" night="); sb.append(uiMode&UI_MODE_NIGHT_MASK); break; 390 } 391 switch (touchscreen) { 392 case TOUCHSCREEN_UNDEFINED: sb.append(" ?touch"); break; 393 case TOUCHSCREEN_NOTOUCH: sb.append(" -touch"); break; 394 case TOUCHSCREEN_STYLUS: sb.append(" stylus"); break; 395 case TOUCHSCREEN_FINGER: sb.append(" finger"); break; 396 default: sb.append(" touch="); sb.append(touchscreen); break; 397 } 398 switch (keyboard) { 399 case KEYBOARD_UNDEFINED: sb.append(" ?keyb"); break; 400 case KEYBOARD_NOKEYS: sb.append(" -keyb"); break; 401 case KEYBOARD_QWERTY: sb.append(" qwerty"); break; 402 case KEYBOARD_12KEY: sb.append(" 12key"); break; 403 default: sb.append(" keys="); sb.append(keyboard); break; 404 } 405 switch (keyboardHidden) { 406 case KEYBOARDHIDDEN_UNDEFINED: sb.append("/?"); break; 407 case KEYBOARDHIDDEN_NO: sb.append("/v"); break; 408 case KEYBOARDHIDDEN_YES: sb.append("/h"); break; 409 case KEYBOARDHIDDEN_SOFT: sb.append("/s"); break; 410 default: sb.append("/"); sb.append(keyboardHidden); break; 411 } 412 switch (hardKeyboardHidden) { 413 case HARDKEYBOARDHIDDEN_UNDEFINED: sb.append("/?"); break; 414 case HARDKEYBOARDHIDDEN_NO: sb.append("/v"); break; 415 case HARDKEYBOARDHIDDEN_YES: sb.append("/h"); break; 416 default: sb.append("/"); sb.append(hardKeyboardHidden); break; 417 } 418 switch (navigation) { 419 case NAVIGATION_UNDEFINED: sb.append(" ?nav"); break; 420 case NAVIGATION_NONAV: sb.append(" -nav"); break; 421 case NAVIGATION_DPAD: sb.append(" dpad"); break; 422 case NAVIGATION_TRACKBALL: sb.append(" tball"); break; 423 case NAVIGATION_WHEEL: sb.append(" wheel"); break; 424 default: sb.append(" nav="); sb.append(navigation); break; 425 } 426 switch (navigationHidden) { 427 case NAVIGATIONHIDDEN_UNDEFINED: sb.append("/?"); break; 428 case NAVIGATIONHIDDEN_NO: sb.append("/v"); break; 429 case NAVIGATIONHIDDEN_YES: sb.append("/h"); break; 430 default: sb.append("/"); sb.append(navigationHidden); break; 431 } 432 if (seq != 0) { 433 sb.append(" s."); 434 sb.append(seq); 435 } 436 sb.append('}'); 437 return sb.toString(); 438 } 439 440 /** 441 * Set this object to the system defaults. 442 */ 443 public void setToDefaults() { 444 fontScale = 1; 445 mcc = mnc = 0; 446 locale = null; 447 userSetLocale = false; 448 touchscreen = TOUCHSCREEN_UNDEFINED; 449 keyboard = KEYBOARD_UNDEFINED; 450 keyboardHidden = KEYBOARDHIDDEN_UNDEFINED; 451 hardKeyboardHidden = HARDKEYBOARDHIDDEN_UNDEFINED; 452 navigation = NAVIGATION_UNDEFINED; 453 navigationHidden = NAVIGATIONHIDDEN_UNDEFINED; 454 orientation = ORIENTATION_UNDEFINED; 455 screenLayout = SCREENLAYOUT_SIZE_UNDEFINED; 456 uiMode = UI_MODE_TYPE_UNDEFINED; 457 screenWidthDp = compatScreenWidthDp = SCREEN_WIDTH_DP_UNDEFINED; 458 screenHeightDp = compatScreenHeightDp = SCREEN_HEIGHT_DP_UNDEFINED; 459 smallestScreenWidthDp = compatSmallestScreenWidthDp = SMALLEST_SCREEN_WIDTH_DP_UNDEFINED; 460 seq = 0; 461 } 462 463 /** {@hide} */ 464 @Deprecated public void makeDefault() { 465 setToDefaults(); 466 } 467 468 /** 469 * Copy the fields from delta into this Configuration object, keeping 470 * track of which ones have changed. Any undefined fields in 471 * <var>delta</var> are ignored and not copied in to the current 472 * Configuration. 473 * @return Returns a bit mask of the changed fields, as per 474 * {@link #diff}. 475 */ 476 public int updateFrom(Configuration delta) { 477 int changed = 0; 478 if (delta.fontScale > 0 && fontScale != delta.fontScale) { 479 changed |= ActivityInfo.CONFIG_FONT_SCALE; 480 fontScale = delta.fontScale; 481 } 482 if (delta.mcc != 0 && mcc != delta.mcc) { 483 changed |= ActivityInfo.CONFIG_MCC; 484 mcc = delta.mcc; 485 } 486 if (delta.mnc != 0 && mnc != delta.mnc) { 487 changed |= ActivityInfo.CONFIG_MNC; 488 mnc = delta.mnc; 489 } 490 if (delta.locale != null 491 && (locale == null || !locale.equals(delta.locale))) { 492 changed |= ActivityInfo.CONFIG_LOCALE; 493 locale = delta.locale != null 494 ? (Locale) delta.locale.clone() : null; 495 } 496 if (delta.userSetLocale && (!userSetLocale || ((changed & ActivityInfo.CONFIG_LOCALE) != 0))) 497 { 498 userSetLocale = true; 499 changed |= ActivityInfo.CONFIG_LOCALE; 500 } 501 if (delta.touchscreen != TOUCHSCREEN_UNDEFINED 502 && touchscreen != delta.touchscreen) { 503 changed |= ActivityInfo.CONFIG_TOUCHSCREEN; 504 touchscreen = delta.touchscreen; 505 } 506 if (delta.keyboard != KEYBOARD_UNDEFINED 507 && keyboard != delta.keyboard) { 508 changed |= ActivityInfo.CONFIG_KEYBOARD; 509 keyboard = delta.keyboard; 510 } 511 if (delta.keyboardHidden != KEYBOARDHIDDEN_UNDEFINED 512 && keyboardHidden != delta.keyboardHidden) { 513 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 514 keyboardHidden = delta.keyboardHidden; 515 } 516 if (delta.hardKeyboardHidden != HARDKEYBOARDHIDDEN_UNDEFINED 517 && hardKeyboardHidden != delta.hardKeyboardHidden) { 518 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 519 hardKeyboardHidden = delta.hardKeyboardHidden; 520 } 521 if (delta.navigation != NAVIGATION_UNDEFINED 522 && navigation != delta.navigation) { 523 changed |= ActivityInfo.CONFIG_NAVIGATION; 524 navigation = delta.navigation; 525 } 526 if (delta.navigationHidden != NAVIGATIONHIDDEN_UNDEFINED 527 && navigationHidden != delta.navigationHidden) { 528 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 529 navigationHidden = delta.navigationHidden; 530 } 531 if (delta.orientation != ORIENTATION_UNDEFINED 532 && orientation != delta.orientation) { 533 changed |= ActivityInfo.CONFIG_ORIENTATION; 534 orientation = delta.orientation; 535 } 536 if (delta.screenLayout != SCREENLAYOUT_SIZE_UNDEFINED 537 && screenLayout != delta.screenLayout) { 538 changed |= ActivityInfo.CONFIG_SCREEN_LAYOUT; 539 screenLayout = delta.screenLayout; 540 } 541 if (delta.uiMode != (UI_MODE_TYPE_UNDEFINED|UI_MODE_NIGHT_UNDEFINED) 542 && uiMode != delta.uiMode) { 543 changed |= ActivityInfo.CONFIG_UI_MODE; 544 if ((delta.uiMode&UI_MODE_TYPE_MASK) != UI_MODE_TYPE_UNDEFINED) { 545 uiMode = (uiMode&~UI_MODE_TYPE_MASK) 546 | (delta.uiMode&UI_MODE_TYPE_MASK); 547 } 548 if ((delta.uiMode&UI_MODE_NIGHT_MASK) != UI_MODE_NIGHT_UNDEFINED) { 549 uiMode = (uiMode&~UI_MODE_NIGHT_MASK) 550 | (delta.uiMode&UI_MODE_NIGHT_MASK); 551 } 552 } 553 if (delta.screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED 554 && screenWidthDp != delta.screenWidthDp) { 555 changed |= ActivityInfo.CONFIG_SCREEN_SIZE; 556 screenWidthDp = delta.screenWidthDp; 557 } 558 if (delta.screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED 559 && screenHeightDp != delta.screenHeightDp) { 560 changed |= ActivityInfo.CONFIG_SCREEN_SIZE; 561 screenHeightDp = delta.screenHeightDp; 562 } 563 if (delta.smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED) { 564 smallestScreenWidthDp = delta.smallestScreenWidthDp; 565 } 566 if (delta.compatScreenWidthDp != SCREEN_WIDTH_DP_UNDEFINED) { 567 compatScreenWidthDp = delta.compatScreenWidthDp; 568 } 569 if (delta.compatScreenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED) { 570 compatScreenHeightDp = delta.compatScreenHeightDp; 571 } 572 if (delta.compatSmallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED) { 573 compatSmallestScreenWidthDp = delta.compatSmallestScreenWidthDp; 574 } 575 576 if (delta.seq != 0) { 577 seq = delta.seq; 578 } 579 580 return changed; 581 } 582 583 /** 584 * Return a bit mask of the differences between this Configuration 585 * object and the given one. Does not change the values of either. Any 586 * undefined fields in <var>delta</var> are ignored. 587 * @return Returns a bit mask indicating which configuration 588 * values has changed, containing any combination of 589 * {@link android.content.pm.ActivityInfo#CONFIG_FONT_SCALE 590 * PackageManager.ActivityInfo.CONFIG_FONT_SCALE}, 591 * {@link android.content.pm.ActivityInfo#CONFIG_MCC 592 * PackageManager.ActivityInfo.CONFIG_MCC}, 593 * {@link android.content.pm.ActivityInfo#CONFIG_MNC 594 * PackageManager.ActivityInfo.CONFIG_MNC}, 595 * {@link android.content.pm.ActivityInfo#CONFIG_LOCALE 596 * PackageManager.ActivityInfo.CONFIG_LOCALE}, 597 * {@link android.content.pm.ActivityInfo#CONFIG_TOUCHSCREEN 598 * PackageManager.ActivityInfo.CONFIG_TOUCHSCREEN}, 599 * {@link android.content.pm.ActivityInfo#CONFIG_KEYBOARD 600 * PackageManager.ActivityInfo.CONFIG_KEYBOARD}, 601 * {@link android.content.pm.ActivityInfo#CONFIG_NAVIGATION 602 * PackageManager.ActivityInfo.CONFIG_NAVIGATION}, 603 * {@link android.content.pm.ActivityInfo#CONFIG_ORIENTATION 604 * PackageManager.ActivityInfo.CONFIG_ORIENTATION}, 605 * {@link android.content.pm.ActivityInfo#CONFIG_SCREEN_LAYOUT 606 * PackageManager.ActivityInfo.CONFIG_SCREEN_LAYOUT}, or 607 * {@link android.content.pm.ActivityInfo#CONFIG_SCREEN_SIZE 608 * PackageManager.ActivityInfo.CONFIG_SCREEN_SIZE}, or 609 * {@link android.content.pm.ActivityInfo#CONFIG_SMALLEST_SCREEN_SIZE 610 * PackageManager.ActivityInfo.CONFIG_SMALLEST_SCREEN_SIZE}. 611 */ 612 public int diff(Configuration delta) { 613 int changed = 0; 614 if (delta.fontScale > 0 && fontScale != delta.fontScale) { 615 changed |= ActivityInfo.CONFIG_FONT_SCALE; 616 } 617 if (delta.mcc != 0 && mcc != delta.mcc) { 618 changed |= ActivityInfo.CONFIG_MCC; 619 } 620 if (delta.mnc != 0 && mnc != delta.mnc) { 621 changed |= ActivityInfo.CONFIG_MNC; 622 } 623 if (delta.locale != null 624 && (locale == null || !locale.equals(delta.locale))) { 625 changed |= ActivityInfo.CONFIG_LOCALE; 626 } 627 if (delta.touchscreen != TOUCHSCREEN_UNDEFINED 628 && touchscreen != delta.touchscreen) { 629 changed |= ActivityInfo.CONFIG_TOUCHSCREEN; 630 } 631 if (delta.keyboard != KEYBOARD_UNDEFINED 632 && keyboard != delta.keyboard) { 633 changed |= ActivityInfo.CONFIG_KEYBOARD; 634 } 635 if (delta.keyboardHidden != KEYBOARDHIDDEN_UNDEFINED 636 && keyboardHidden != delta.keyboardHidden) { 637 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 638 } 639 if (delta.hardKeyboardHidden != HARDKEYBOARDHIDDEN_UNDEFINED 640 && hardKeyboardHidden != delta.hardKeyboardHidden) { 641 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 642 } 643 if (delta.navigation != NAVIGATION_UNDEFINED 644 && navigation != delta.navigation) { 645 changed |= ActivityInfo.CONFIG_NAVIGATION; 646 } 647 if (delta.navigationHidden != NAVIGATIONHIDDEN_UNDEFINED 648 && navigationHidden != delta.navigationHidden) { 649 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 650 } 651 if (delta.orientation != ORIENTATION_UNDEFINED 652 && orientation != delta.orientation) { 653 changed |= ActivityInfo.CONFIG_ORIENTATION; 654 } 655 if (delta.screenLayout != SCREENLAYOUT_SIZE_UNDEFINED 656 && screenLayout != delta.screenLayout) { 657 changed |= ActivityInfo.CONFIG_SCREEN_LAYOUT; 658 } 659 if (delta.uiMode != (UI_MODE_TYPE_UNDEFINED|UI_MODE_NIGHT_UNDEFINED) 660 && uiMode != delta.uiMode) { 661 changed |= ActivityInfo.CONFIG_UI_MODE; 662 } 663 if (delta.screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED 664 && screenWidthDp != delta.screenWidthDp) { 665 changed |= ActivityInfo.CONFIG_SCREEN_SIZE; 666 } 667 if (delta.screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED 668 && screenHeightDp != delta.screenHeightDp) { 669 changed |= ActivityInfo.CONFIG_SCREEN_SIZE; 670 } 671 if (delta.smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED 672 && smallestScreenWidthDp != delta.smallestScreenWidthDp) { 673 changed |= ActivityInfo.CONFIG_SMALLEST_SCREEN_SIZE; 674 } 675 676 return changed; 677 } 678 679 /** 680 * Determine if a new resource needs to be loaded from the bit set of 681 * configuration changes returned by {@link #updateFrom(Configuration)}. 682 * 683 * @param configChanges The mask of changes configurations as returned by 684 * {@link #updateFrom(Configuration)}. 685 * @param interestingChanges The configuration changes that the resource 686 * can handled, as given in {@link android.util.TypedValue#changingConfigurations}. 687 * 688 * @return Return true if the resource needs to be loaded, else false. 689 */ 690 public static boolean needNewResources(int configChanges, int interestingChanges) { 691 return (configChanges & (interestingChanges|ActivityInfo.CONFIG_FONT_SCALE)) != 0; 692 } 693 694 /** 695 * @hide Return true if the sequence of 'other' is better than this. Assumes 696 * that 'this' is your current sequence and 'other' is a new one you have 697 * received some how and want to compare with what you have. 698 */ 699 public boolean isOtherSeqNewer(Configuration other) { 700 if (other == null) { 701 // Sanity check. 702 return false; 703 } 704 if (other.seq == 0) { 705 // If the other sequence is not specified, then we must assume 706 // it is newer since we don't know any better. 707 return true; 708 } 709 if (seq == 0) { 710 // If this sequence is not specified, then we also consider the 711 // other is better. Yes we have a preference for other. Sue us. 712 return true; 713 } 714 int diff = other.seq - seq; 715 if (diff > 0x10000) { 716 // If there has been a sufficiently large jump, assume the 717 // sequence has wrapped around. 718 return false; 719 } 720 return diff > 0; 721 } 722 723 /** 724 * Parcelable methods 725 */ 726 public int describeContents() { 727 return 0; 728 } 729 730 public void writeToParcel(Parcel dest, int flags) { 731 dest.writeFloat(fontScale); 732 dest.writeInt(mcc); 733 dest.writeInt(mnc); 734 if (locale == null) { 735 dest.writeInt(0); 736 } else { 737 dest.writeInt(1); 738 dest.writeString(locale.getLanguage()); 739 dest.writeString(locale.getCountry()); 740 dest.writeString(locale.getVariant()); 741 } 742 if(userSetLocale) { 743 dest.writeInt(1); 744 } else { 745 dest.writeInt(0); 746 } 747 dest.writeInt(touchscreen); 748 dest.writeInt(keyboard); 749 dest.writeInt(keyboardHidden); 750 dest.writeInt(hardKeyboardHidden); 751 dest.writeInt(navigation); 752 dest.writeInt(navigationHidden); 753 dest.writeInt(orientation); 754 dest.writeInt(screenLayout); 755 dest.writeInt(uiMode); 756 dest.writeInt(screenWidthDp); 757 dest.writeInt(screenHeightDp); 758 dest.writeInt(smallestScreenWidthDp); 759 dest.writeInt(compatScreenWidthDp); 760 dest.writeInt(compatScreenHeightDp); 761 dest.writeInt(compatSmallestScreenWidthDp); 762 dest.writeInt(seq); 763 } 764 765 public void readFromParcel(Parcel source) { 766 fontScale = source.readFloat(); 767 mcc = source.readInt(); 768 mnc = source.readInt(); 769 if (source.readInt() != 0) { 770 locale = new Locale(source.readString(), source.readString(), 771 source.readString()); 772 } 773 userSetLocale = (source.readInt()==1); 774 touchscreen = source.readInt(); 775 keyboard = source.readInt(); 776 keyboardHidden = source.readInt(); 777 hardKeyboardHidden = source.readInt(); 778 navigation = source.readInt(); 779 navigationHidden = source.readInt(); 780 orientation = source.readInt(); 781 screenLayout = source.readInt(); 782 uiMode = source.readInt(); 783 screenWidthDp = source.readInt(); 784 screenHeightDp = source.readInt(); 785 smallestScreenWidthDp = source.readInt(); 786 compatScreenWidthDp = source.readInt(); 787 compatScreenHeightDp = source.readInt(); 788 compatSmallestScreenWidthDp = source.readInt(); 789 seq = source.readInt(); 790 } 791 792 public static final Parcelable.Creator<Configuration> CREATOR 793 = new Parcelable.Creator<Configuration>() { 794 public Configuration createFromParcel(Parcel source) { 795 return new Configuration(source); 796 } 797 798 public Configuration[] newArray(int size) { 799 return new Configuration[size]; 800 } 801 }; 802 803 /** 804 * Construct this Configuration object, reading from the Parcel. 805 */ 806 private Configuration(Parcel source) { 807 readFromParcel(source); 808 } 809 810 public int compareTo(Configuration that) { 811 int n; 812 float a = this.fontScale; 813 float b = that.fontScale; 814 if (a < b) return -1; 815 if (a > b) return 1; 816 n = this.mcc - that.mcc; 817 if (n != 0) return n; 818 n = this.mnc - that.mnc; 819 if (n != 0) return n; 820 if (this.locale == null) { 821 if (that.locale != null) return 1; 822 } else if (that.locale == null) { 823 return -1; 824 } else { 825 n = this.locale.getLanguage().compareTo(that.locale.getLanguage()); 826 if (n != 0) return n; 827 n = this.locale.getCountry().compareTo(that.locale.getCountry()); 828 if (n != 0) return n; 829 n = this.locale.getVariant().compareTo(that.locale.getVariant()); 830 if (n != 0) return n; 831 } 832 n = this.touchscreen - that.touchscreen; 833 if (n != 0) return n; 834 n = this.keyboard - that.keyboard; 835 if (n != 0) return n; 836 n = this.keyboardHidden - that.keyboardHidden; 837 if (n != 0) return n; 838 n = this.hardKeyboardHidden - that.hardKeyboardHidden; 839 if (n != 0) return n; 840 n = this.navigation - that.navigation; 841 if (n != 0) return n; 842 n = this.navigationHidden - that.navigationHidden; 843 if (n != 0) return n; 844 n = this.orientation - that.orientation; 845 if (n != 0) return n; 846 n = this.screenLayout - that.screenLayout; 847 if (n != 0) return n; 848 n = this.uiMode - that.uiMode; 849 if (n != 0) return n; 850 n = this.screenWidthDp - that.screenWidthDp; 851 if (n != 0) return n; 852 n = this.screenHeightDp - that.screenHeightDp; 853 if (n != 0) return n; 854 n = this.smallestScreenWidthDp - that.smallestScreenWidthDp; 855 //if (n != 0) return n; 856 return n; 857 } 858 859 public boolean equals(Configuration that) { 860 if (that == null) return false; 861 if (that == this) return true; 862 return this.compareTo(that) == 0; 863 } 864 865 public boolean equals(Object that) { 866 try { 867 return equals((Configuration)that); 868 } catch (ClassCastException e) { 869 } 870 return false; 871 } 872 873 public int hashCode() { 874 int result = 17; 875 result = 31 * result + Float.floatToIntBits(fontScale); 876 result = 31 * result + mcc; 877 result = 31 * result + mnc; 878 result = 31 * result + (locale != null ? locale.hashCode() : 0); 879 result = 31 * result + touchscreen; 880 result = 31 * result + keyboard; 881 result = 31 * result + keyboardHidden; 882 result = 31 * result + hardKeyboardHidden; 883 result = 31 * result + navigation; 884 result = 31 * result + navigationHidden; 885 result = 31 * result + orientation; 886 result = 31 * result + screenLayout; 887 result = 31 * result + uiMode; 888 result = 31 * result + screenWidthDp; 889 result = 31 * result + screenHeightDp; 890 result = 31 * result + smallestScreenWidthDp; 891 return result; 892 } 893} 894