Configuration.java revision 1bb18c435dbf967f3a9bc9d680411471b8bab4ac
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 com.android.internal.util.XmlUtils; 20 21import org.xmlpull.v1.XmlPullParser; 22import org.xmlpull.v1.XmlPullParserException; 23import org.xmlpull.v1.XmlSerializer; 24 25import android.content.pm.ActivityInfo; 26import android.os.Build; 27import android.os.Parcel; 28import android.os.Parcelable; 29import android.text.TextUtils; 30import android.view.View; 31 32import java.io.IOException; 33import java.util.ArrayList; 34import java.util.Locale; 35 36/** 37 * This class describes all device configuration information that can 38 * impact the resources the application retrieves. This includes both 39 * user-specified configuration options (locale and scaling) as well 40 * as device configurations (such as input modes, screen size and screen orientation). 41 * <p>You can acquire this object from {@link Resources}, using {@link 42 * Resources#getConfiguration}. Thus, from an activity, you can get it by chaining the request 43 * with {@link android.app.Activity#getResources}:</p> 44 * <pre>Configuration config = getResources().getConfiguration();</pre> 45 */ 46public final class Configuration implements Parcelable, Comparable<Configuration> { 47 /** @hide */ 48 public static final Configuration EMPTY = new Configuration(); 49 50 /** 51 * Current user preference for the scaling factor for fonts, relative 52 * to the base density scaling. 53 */ 54 public float fontScale; 55 56 /** 57 * IMSI MCC (Mobile Country Code), corresponding to 58 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#MccQualifier">mcc</a> 59 * resource qualifier. 0 if undefined. 60 */ 61 public int mcc; 62 63 /** 64 * IMSI MNC (Mobile Network Code), corresponding to 65 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#MccQualifier">mnc</a> 66 * resource qualifier. 0 if undefined. Note that the actual MNC may be 0; in order to check 67 * for this use the {@link #MNC_ZERO} symbol. 68 */ 69 public int mnc; 70 71 /** 72 * Constant used to to represent MNC (Mobile Network Code) zero. 73 * 0 cannot be used, since it is used to represent an undefined MNC. 74 */ 75 public static final int MNC_ZERO = 0xffff; 76 77 /** 78 * Current user preference for the locale, corresponding to 79 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#LocaleQualifier">locale</a> 80 * resource qualifier. 81 */ 82 public Locale locale; 83 84 /** 85 * Locale should persist on setting. This is hidden because it is really 86 * questionable whether this is the right way to expose the functionality. 87 * @hide 88 */ 89 public boolean userSetLocale; 90 91 /** Constant for {@link #screenLayout}: bits that encode the size. */ 92 public static final int SCREENLAYOUT_SIZE_MASK = 0x0f; 93 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK} 94 * value indicating that no size has been set. */ 95 public static final int SCREENLAYOUT_SIZE_UNDEFINED = 0x00; 96 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK} 97 * value indicating the screen is at least approximately 320x426 dp units, 98 * corresponds to the 99 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenSizeQualifier">small</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_SMALL = 0x01; 104 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK} 105 * value indicating the screen is at least approximately 320x470 dp units, 106 * corresponds to the 107 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenSizeQualifier">normal</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_NORMAL = 0x02; 112 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK} 113 * value indicating the screen is at least approximately 480x640 dp units, 114 * corresponds to the 115 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenSizeQualifier">large</a> 116 * resource qualifier. 117 * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting 118 * Multiple Screens</a> for more information. */ 119 public static final int SCREENLAYOUT_SIZE_LARGE = 0x03; 120 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK} 121 * value indicating the screen is at least approximately 720x960 dp units, 122 * corresponds to the 123 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenSizeQualifier">xlarge</a> 124 * resource qualifier. 125 * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting 126 * Multiple Screens</a> for more information.*/ 127 public static final int SCREENLAYOUT_SIZE_XLARGE = 0x04; 128 129 /** Constant for {@link #screenLayout}: bits that encode the aspect ratio. */ 130 public static final int SCREENLAYOUT_LONG_MASK = 0x30; 131 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LONG_MASK} 132 * value indicating that no size has been set. */ 133 public static final int SCREENLAYOUT_LONG_UNDEFINED = 0x00; 134 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LONG_MASK} 135 * value that corresponds to the 136 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenAspectQualifier">notlong</a> 137 * resource qualifier. */ 138 public static final int SCREENLAYOUT_LONG_NO = 0x10; 139 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LONG_MASK} 140 * value that corresponds to the 141 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenAspectQualifier">long</a> 142 * resource qualifier. */ 143 public static final int SCREENLAYOUT_LONG_YES = 0x20; 144 145 /** Constant for {@link #screenLayout}: bits that encode the layout direction. */ 146 public static final int SCREENLAYOUT_LAYOUTDIR_MASK = 0xC0; 147 /** Constant for {@link #screenLayout}: bits shift to get the layout direction. */ 148 public static final int SCREENLAYOUT_LAYOUTDIR_SHIFT = 6; 149 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LAYOUTDIR_MASK} 150 * value indicating that no layout dir has been set. */ 151 public static final int SCREENLAYOUT_LAYOUTDIR_UNDEFINED = 0x00; 152 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LAYOUTDIR_MASK} 153 * value indicating that a layout dir has been set to LTR. */ 154 public static final int SCREENLAYOUT_LAYOUTDIR_LTR = 0x01 << SCREENLAYOUT_LAYOUTDIR_SHIFT; 155 /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LAYOUTDIR_MASK} 156 * value indicating that a layout dir has been set to RTL. */ 157 public static final int SCREENLAYOUT_LAYOUTDIR_RTL = 0x02 << SCREENLAYOUT_LAYOUTDIR_SHIFT; 158 159 /** Constant for {@link #screenLayout}: a value indicating that screenLayout is undefined */ 160 public static final int SCREENLAYOUT_UNDEFINED = SCREENLAYOUT_SIZE_UNDEFINED | 161 SCREENLAYOUT_LONG_UNDEFINED | SCREENLAYOUT_LAYOUTDIR_UNDEFINED; 162 163 /** 164 * Special flag we generate to indicate that the screen layout requires 165 * us to use a compatibility mode for apps that are not modern layout 166 * aware. 167 * @hide 168 */ 169 public static final int SCREENLAYOUT_COMPAT_NEEDED = 0x10000000; 170 171 /** 172 * Bit mask of overall layout of the screen. Currently there are two 173 * fields: 174 * <p>The {@link #SCREENLAYOUT_SIZE_MASK} bits define the overall size 175 * of the screen. They may be one of 176 * {@link #SCREENLAYOUT_SIZE_SMALL}, {@link #SCREENLAYOUT_SIZE_NORMAL}, 177 * {@link #SCREENLAYOUT_SIZE_LARGE}, or {@link #SCREENLAYOUT_SIZE_XLARGE}. 178 * 179 * <p>The {@link #SCREENLAYOUT_LONG_MASK} defines whether the screen 180 * is wider/taller than normal. They may be one of 181 * {@link #SCREENLAYOUT_LONG_NO} or {@link #SCREENLAYOUT_LONG_YES}. 182 * 183 * <p>The {@link #SCREENLAYOUT_LAYOUTDIR_MASK} defines whether the screen layout 184 * is either LTR or RTL. They may be one of 185 * {@link #SCREENLAYOUT_LAYOUTDIR_LTR} or {@link #SCREENLAYOUT_LAYOUTDIR_RTL}. 186 * 187 * <p>See <a href="{@docRoot}guide/practices/screens_support.html">Supporting 188 * Multiple Screens</a> for more information. 189 */ 190 public int screenLayout; 191 192 /** @hide */ 193 static public int resetScreenLayout(int curLayout) { 194 return (curLayout&~(SCREENLAYOUT_LONG_MASK | SCREENLAYOUT_SIZE_MASK 195 | SCREENLAYOUT_COMPAT_NEEDED)) 196 | (SCREENLAYOUT_LONG_YES | SCREENLAYOUT_SIZE_XLARGE); 197 } 198 199 /** @hide */ 200 static public int reduceScreenLayout(int curLayout, int longSizeDp, int shortSizeDp) { 201 int screenLayoutSize; 202 boolean screenLayoutLong; 203 boolean screenLayoutCompatNeeded; 204 205 // These semi-magic numbers define our compatibility modes for 206 // applications with different screens. These are guarantees to 207 // app developers about the space they can expect for a particular 208 // configuration. DO NOT CHANGE! 209 if (longSizeDp < 470) { 210 // This is shorter than an HVGA normal density screen (which 211 // is 480 pixels on its long side). 212 screenLayoutSize = SCREENLAYOUT_SIZE_SMALL; 213 screenLayoutLong = false; 214 screenLayoutCompatNeeded = false; 215 } else { 216 // What size is this screen screen? 217 if (longSizeDp >= 960 && shortSizeDp >= 720) { 218 // 1.5xVGA or larger screens at medium density are the point 219 // at which we consider it to be an extra large screen. 220 screenLayoutSize = SCREENLAYOUT_SIZE_XLARGE; 221 } else if (longSizeDp >= 640 && shortSizeDp >= 480) { 222 // VGA or larger screens at medium density are the point 223 // at which we consider it to be a large screen. 224 screenLayoutSize = SCREENLAYOUT_SIZE_LARGE; 225 } else { 226 screenLayoutSize = SCREENLAYOUT_SIZE_NORMAL; 227 } 228 229 // If this screen is wider than normal HVGA, or taller 230 // than FWVGA, then for old apps we want to run in size 231 // compatibility mode. 232 if (shortSizeDp > 321 || longSizeDp > 570) { 233 screenLayoutCompatNeeded = true; 234 } else { 235 screenLayoutCompatNeeded = false; 236 } 237 238 // Is this a long screen? 239 if (((longSizeDp*3)/5) >= (shortSizeDp-1)) { 240 // Anything wider than WVGA (5:3) is considering to be long. 241 screenLayoutLong = true; 242 } else { 243 screenLayoutLong = false; 244 } 245 } 246 247 // Now reduce the last screenLayout to not be better than what we 248 // have found. 249 if (!screenLayoutLong) { 250 curLayout = (curLayout&~SCREENLAYOUT_LONG_MASK) | SCREENLAYOUT_LONG_NO; 251 } 252 if (screenLayoutCompatNeeded) { 253 curLayout |= Configuration.SCREENLAYOUT_COMPAT_NEEDED; 254 } 255 int curSize = curLayout&SCREENLAYOUT_SIZE_MASK; 256 if (screenLayoutSize < curSize) { 257 curLayout = (curLayout&~SCREENLAYOUT_SIZE_MASK) | screenLayoutSize; 258 } 259 return curLayout; 260 } 261 262 /** 263 * Check if the Configuration's current {@link #screenLayout} is at 264 * least the given size. 265 * 266 * @param size The desired size, either {@link #SCREENLAYOUT_SIZE_SMALL}, 267 * {@link #SCREENLAYOUT_SIZE_NORMAL}, {@link #SCREENLAYOUT_SIZE_LARGE}, or 268 * {@link #SCREENLAYOUT_SIZE_XLARGE}. 269 * @return Returns true if the current screen layout size is at least 270 * the given size. 271 */ 272 public boolean isLayoutSizeAtLeast(int size) { 273 int cur = screenLayout&SCREENLAYOUT_SIZE_MASK; 274 if (cur == SCREENLAYOUT_SIZE_UNDEFINED) return false; 275 return cur >= size; 276 } 277 278 /** Constant for {@link #touchscreen}: a value indicating that no value has been set. */ 279 public static final int TOUCHSCREEN_UNDEFINED = 0; 280 /** Constant for {@link #touchscreen}, value corresponding to the 281 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#TouchscreenQualifier">notouch</a> 282 * resource qualifier. */ 283 public static final int TOUCHSCREEN_NOTOUCH = 1; 284 /** @deprecated Not currently supported or used. */ 285 @Deprecated public static final int TOUCHSCREEN_STYLUS = 2; 286 /** Constant for {@link #touchscreen}, value corresponding to the 287 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#TouchscreenQualifier">finger</a> 288 * resource qualifier. */ 289 public static final int TOUCHSCREEN_FINGER = 3; 290 291 /** 292 * The kind of touch screen attached to the device. 293 * One of: {@link #TOUCHSCREEN_NOTOUCH}, {@link #TOUCHSCREEN_FINGER}. 294 */ 295 public int touchscreen; 296 297 /** Constant for {@link #keyboard}: a value indicating that no value has been set. */ 298 public static final int KEYBOARD_UNDEFINED = 0; 299 /** Constant for {@link #keyboard}, value corresponding to the 300 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ImeQualifier">nokeys</a> 301 * resource qualifier. */ 302 public static final int KEYBOARD_NOKEYS = 1; 303 /** Constant for {@link #keyboard}, value corresponding to the 304 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ImeQualifier">qwerty</a> 305 * resource qualifier. */ 306 public static final int KEYBOARD_QWERTY = 2; 307 /** Constant for {@link #keyboard}, value corresponding to the 308 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ImeQualifier">12key</a> 309 * resource qualifier. */ 310 public static final int KEYBOARD_12KEY = 3; 311 312 /** 313 * The kind of keyboard attached to the device. 314 * One of: {@link #KEYBOARD_NOKEYS}, {@link #KEYBOARD_QWERTY}, 315 * {@link #KEYBOARD_12KEY}. 316 */ 317 public int keyboard; 318 319 /** Constant for {@link #keyboardHidden}: a value indicating that no value has been set. */ 320 public static final int KEYBOARDHIDDEN_UNDEFINED = 0; 321 /** Constant for {@link #keyboardHidden}, value corresponding to the 322 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#KeyboardAvailQualifier">keysexposed</a> 323 * resource qualifier. */ 324 public static final int KEYBOARDHIDDEN_NO = 1; 325 /** Constant for {@link #keyboardHidden}, value corresponding to the 326 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#KeyboardAvailQualifier">keyshidden</a> 327 * resource qualifier. */ 328 public static final int KEYBOARDHIDDEN_YES = 2; 329 /** Constant matching actual resource implementation. {@hide} */ 330 public static final int KEYBOARDHIDDEN_SOFT = 3; 331 332 /** 333 * A flag indicating whether any keyboard is available. Unlike 334 * {@link #hardKeyboardHidden}, this also takes into account a soft 335 * keyboard, so if the hard keyboard is hidden but there is soft 336 * keyboard available, it will be set to NO. Value is one of: 337 * {@link #KEYBOARDHIDDEN_NO}, {@link #KEYBOARDHIDDEN_YES}. 338 */ 339 public int keyboardHidden; 340 341 /** Constant for {@link #hardKeyboardHidden}: a value indicating that no value has been set. */ 342 public static final int HARDKEYBOARDHIDDEN_UNDEFINED = 0; 343 /** Constant for {@link #hardKeyboardHidden}, value corresponding to the 344 * physical keyboard being exposed. */ 345 public static final int HARDKEYBOARDHIDDEN_NO = 1; 346 /** Constant for {@link #hardKeyboardHidden}, value corresponding to the 347 * physical keyboard being hidden. */ 348 public static final int HARDKEYBOARDHIDDEN_YES = 2; 349 350 /** 351 * A flag indicating whether the hard keyboard has been hidden. This will 352 * be set on a device with a mechanism to hide the keyboard from the 353 * user, when that mechanism is closed. One of: 354 * {@link #HARDKEYBOARDHIDDEN_NO}, {@link #HARDKEYBOARDHIDDEN_YES}. 355 */ 356 public int hardKeyboardHidden; 357 358 /** Constant for {@link #navigation}: a value indicating that no value has been set. */ 359 public static final int NAVIGATION_UNDEFINED = 0; 360 /** Constant for {@link #navigation}, value corresponding to the 361 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavigationQualifier">nonav</a> 362 * resource qualifier. */ 363 public static final int NAVIGATION_NONAV = 1; 364 /** Constant for {@link #navigation}, value corresponding to the 365 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavigationQualifier">dpad</a> 366 * resource qualifier. */ 367 public static final int NAVIGATION_DPAD = 2; 368 /** Constant for {@link #navigation}, value corresponding to the 369 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavigationQualifier">trackball</a> 370 * resource qualifier. */ 371 public static final int NAVIGATION_TRACKBALL = 3; 372 /** Constant for {@link #navigation}, value corresponding to the 373 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavigationQualifier">wheel</a> 374 * resource qualifier. */ 375 public static final int NAVIGATION_WHEEL = 4; 376 377 /** 378 * The kind of navigation method available on the device. 379 * One of: {@link #NAVIGATION_NONAV}, {@link #NAVIGATION_DPAD}, 380 * {@link #NAVIGATION_TRACKBALL}, {@link #NAVIGATION_WHEEL}. 381 */ 382 public int navigation; 383 384 /** Constant for {@link #navigationHidden}: a value indicating that no value has been set. */ 385 public static final int NAVIGATIONHIDDEN_UNDEFINED = 0; 386 /** Constant for {@link #navigationHidden}, value corresponding to the 387 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavAvailQualifier">navexposed</a> 388 * resource qualifier. */ 389 public static final int NAVIGATIONHIDDEN_NO = 1; 390 /** Constant for {@link #navigationHidden}, value corresponding to the 391 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavAvailQualifier">navhidden</a> 392 * resource qualifier. */ 393 public static final int NAVIGATIONHIDDEN_YES = 2; 394 395 /** 396 * A flag indicating whether any 5-way or DPAD navigation available. 397 * This will be set on a device with a mechanism to hide the navigation 398 * controls from the user, when that mechanism is closed. One of: 399 * {@link #NAVIGATIONHIDDEN_NO}, {@link #NAVIGATIONHIDDEN_YES}. 400 */ 401 public int navigationHidden; 402 403 /** Constant for {@link #orientation}: a value indicating that no value has been set. */ 404 public static final int ORIENTATION_UNDEFINED = 0; 405 /** Constant for {@link #orientation}, value corresponding to the 406 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#OrientationQualifier">port</a> 407 * resource qualifier. */ 408 public static final int ORIENTATION_PORTRAIT = 1; 409 /** Constant for {@link #orientation}, value corresponding to the 410 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#OrientationQualifier">land</a> 411 * resource qualifier. */ 412 public static final int ORIENTATION_LANDSCAPE = 2; 413 /** @deprecated Not currently supported or used. */ 414 @Deprecated public static final int ORIENTATION_SQUARE = 3; 415 416 /** 417 * Overall orientation of the screen. May be one of 418 * {@link #ORIENTATION_LANDSCAPE}, {@link #ORIENTATION_PORTRAIT}. 419 */ 420 public int orientation; 421 422 /** Constant for {@link #uiMode}: bits that encode the mode type. */ 423 public static final int UI_MODE_TYPE_MASK = 0x0f; 424 /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} 425 * value indicating that no mode type has been set. */ 426 public static final int UI_MODE_TYPE_UNDEFINED = 0x00; 427 /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} 428 * value that corresponds to 429 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">no 430 * UI mode</a> resource qualifier specified. */ 431 public static final int UI_MODE_TYPE_NORMAL = 0x01; 432 /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} 433 * value that corresponds to the 434 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">desk</a> 435 * resource qualifier. */ 436 public static final int UI_MODE_TYPE_DESK = 0x02; 437 /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} 438 * value that corresponds to the 439 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">car</a> 440 * resource qualifier. */ 441 public static final int UI_MODE_TYPE_CAR = 0x03; 442 /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} 443 * value that corresponds to the 444 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">television</a> 445 * resource qualifier. */ 446 public static final int UI_MODE_TYPE_TELEVISION = 0x04; 447 /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} 448 * value that corresponds to the 449 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">appliance</a> 450 * resource qualifier. */ 451 public static final int UI_MODE_TYPE_APPLIANCE = 0x05; 452 /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK} 453 * value that corresponds to the 454 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">watch</a> 455 * resource qualifier. */ 456 public static final int UI_MODE_TYPE_WATCH = 0x06; 457 458 /** Constant for {@link #uiMode}: bits that encode the night mode. */ 459 public static final int UI_MODE_NIGHT_MASK = 0x30; 460 /** Constant for {@link #uiMode}: a {@link #UI_MODE_NIGHT_MASK} 461 * value indicating that no mode type has been set. */ 462 public static final int UI_MODE_NIGHT_UNDEFINED = 0x00; 463 /** Constant for {@link #uiMode}: a {@link #UI_MODE_NIGHT_MASK} 464 * value that corresponds to the 465 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NightQualifier">notnight</a> 466 * resource qualifier. */ 467 public static final int UI_MODE_NIGHT_NO = 0x10; 468 /** Constant for {@link #uiMode}: a {@link #UI_MODE_NIGHT_MASK} 469 * value that corresponds to the 470 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NightQualifier">night</a> 471 * resource qualifier. */ 472 public static final int UI_MODE_NIGHT_YES = 0x20; 473 474 /** 475 * Bit mask of the ui mode. Currently there are two fields: 476 * <p>The {@link #UI_MODE_TYPE_MASK} bits define the overall ui mode of the 477 * device. They may be one of {@link #UI_MODE_TYPE_UNDEFINED}, 478 * {@link #UI_MODE_TYPE_NORMAL}, {@link #UI_MODE_TYPE_DESK}, 479 * {@link #UI_MODE_TYPE_CAR}, {@link #UI_MODE_TYPE_TELEVISION}, 480 * {@link #UI_MODE_TYPE_APPLIANCE}, or {@link #UI_MODE_TYPE_WATCH}. 481 * 482 * <p>The {@link #UI_MODE_NIGHT_MASK} defines whether the screen 483 * is in a special mode. They may be one of {@link #UI_MODE_NIGHT_UNDEFINED}, 484 * {@link #UI_MODE_NIGHT_NO} or {@link #UI_MODE_NIGHT_YES}. 485 */ 486 public int uiMode; 487 488 /** 489 * Default value for {@link #screenWidthDp} indicating that no width 490 * has been specified. 491 */ 492 public static final int SCREEN_WIDTH_DP_UNDEFINED = 0; 493 494 /** 495 * The current width of the available screen space, in dp units, 496 * corresponding to 497 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenWidthQualifier">screen 498 * width</a> resource qualifier. Set to 499 * {@link #SCREEN_WIDTH_DP_UNDEFINED} if no width is specified. 500 */ 501 public int screenWidthDp; 502 503 /** 504 * Default value for {@link #screenHeightDp} indicating that no width 505 * has been specified. 506 */ 507 public static final int SCREEN_HEIGHT_DP_UNDEFINED = 0; 508 509 /** 510 * The current height of the available screen space, in dp units, 511 * corresponding to 512 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenHeightQualifier">screen 513 * height</a> resource qualifier. Set to 514 * {@link #SCREEN_HEIGHT_DP_UNDEFINED} if no height is specified. 515 */ 516 public int screenHeightDp; 517 518 /** 519 * Default value for {@link #smallestScreenWidthDp} indicating that no width 520 * has been specified. 521 */ 522 public static final int SMALLEST_SCREEN_WIDTH_DP_UNDEFINED = 0; 523 524 /** 525 * The smallest screen size an application will see in normal operation, 526 * corresponding to 527 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#SmallestScreenWidthQualifier">smallest 528 * screen width</a> resource qualifier. 529 * This is the smallest value of both screenWidthDp and screenHeightDp 530 * in both portrait and landscape. Set to 531 * {@link #SMALLEST_SCREEN_WIDTH_DP_UNDEFINED} if no width is specified. 532 */ 533 public int smallestScreenWidthDp; 534 535 /** 536 * Default value for {@link #densityDpi} indicating that no width 537 * has been specified. 538 */ 539 public static final int DENSITY_DPI_UNDEFINED = 0; 540 541 /** 542 * Value for {@link #densityDpi} for resources that scale to any density (vector drawables). 543 * {@hide} 544 */ 545 public static final int DENSITY_DPI_ANY = 0xfffe; 546 547 /** 548 * Value for {@link #densityDpi} for resources that are not meant to be scaled. 549 * {@hide} 550 */ 551 public static final int DENSITY_DPI_NONE = 0xffff; 552 553 /** 554 * The target screen density being rendered to, 555 * corresponding to 556 * <a href="{@docRoot}guide/topics/resources/providing-resources.html#DensityQualifier">density</a> 557 * resource qualifier. Set to 558 * {@link #DENSITY_DPI_UNDEFINED} if no density is specified. 559 */ 560 public int densityDpi; 561 562 /** @hide Hack to get this information from WM to app running in compat mode. */ 563 public int compatScreenWidthDp; 564 /** @hide Hack to get this information from WM to app running in compat mode. */ 565 public int compatScreenHeightDp; 566 /** @hide Hack to get this information from WM to app running in compat mode. */ 567 public int compatSmallestScreenWidthDp; 568 569 /** 570 * @hide Internal book-keeping. 571 */ 572 public int seq; 573 574 /** @hide Native-specific bit mask for MCC config; DO NOT USE UNLESS YOU ARE SURE. */ 575 public static final int NATIVE_CONFIG_MCC = 0x0001; 576 /** @hide Native-specific bit mask for MNC config; DO NOT USE UNLESS YOU ARE SURE. */ 577 public static final int NATIVE_CONFIG_MNC = 0x0002; 578 /** @hide Native-specific bit mask for LOCALE config; DO NOT USE UNLESS YOU ARE SURE. */ 579 public static final int NATIVE_CONFIG_LOCALE = 0x0004; 580 /** @hide Native-specific bit mask for TOUCHSCREEN config; DO NOT USE UNLESS YOU ARE SURE. */ 581 public static final int NATIVE_CONFIG_TOUCHSCREEN = 0x0008; 582 /** @hide Native-specific bit mask for KEYBOARD config; DO NOT USE UNLESS YOU ARE SURE. */ 583 public static final int NATIVE_CONFIG_KEYBOARD = 0x0010; 584 /** @hide Native-specific bit mask for KEYBOARD_HIDDEN config; DO NOT USE UNLESS YOU 585 * ARE SURE. */ 586 public static final int NATIVE_CONFIG_KEYBOARD_HIDDEN = 0x0020; 587 /** @hide Native-specific bit mask for NAVIGATION config; DO NOT USE UNLESS YOU ARE SURE. */ 588 public static final int NATIVE_CONFIG_NAVIGATION = 0x0040; 589 /** @hide Native-specific bit mask for ORIENTATION config; DO NOT USE UNLESS YOU ARE SURE. */ 590 public static final int NATIVE_CONFIG_ORIENTATION = 0x0080; 591 /** @hide Native-specific bit mask for DENSITY config; DO NOT USE UNLESS YOU ARE SURE. */ 592 public static final int NATIVE_CONFIG_DENSITY = 0x0100; 593 /** @hide Native-specific bit mask for SCREEN_SIZE config; DO NOT USE UNLESS YOU ARE SURE. */ 594 public static final int NATIVE_CONFIG_SCREEN_SIZE = 0x0200; 595 /** @hide Native-specific bit mask for VERSION config; DO NOT USE UNLESS YOU ARE SURE. */ 596 public static final int NATIVE_CONFIG_VERSION = 0x0400; 597 /** @hide Native-specific bit mask for SCREEN_LAYOUT config; DO NOT USE UNLESS YOU ARE SURE. */ 598 public static final int NATIVE_CONFIG_SCREEN_LAYOUT = 0x0800; 599 /** @hide Native-specific bit mask for UI_MODE config; DO NOT USE UNLESS YOU ARE SURE. */ 600 public static final int NATIVE_CONFIG_UI_MODE = 0x1000; 601 /** @hide Native-specific bit mask for SMALLEST_SCREEN_SIZE config; DO NOT USE UNLESS YOU 602 * ARE SURE. */ 603 public static final int NATIVE_CONFIG_SMALLEST_SCREEN_SIZE = 0x2000; 604 /** @hide Native-specific bit mask for LAYOUTDIR config ; DO NOT USE UNLESS YOU ARE SURE.*/ 605 public static final int NATIVE_CONFIG_LAYOUTDIR = 0x4000; 606 607 /** 608 * Construct an invalid Configuration. You must call {@link #setToDefaults} 609 * for this object to be valid. {@more} 610 */ 611 public Configuration() { 612 setToDefaults(); 613 } 614 615 /** 616 * Makes a deep copy suitable for modification. 617 */ 618 public Configuration(Configuration o) { 619 setTo(o); 620 } 621 622 public void setTo(Configuration o) { 623 fontScale = o.fontScale; 624 mcc = o.mcc; 625 mnc = o.mnc; 626 if (o.locale != null) { 627 locale = (Locale) o.locale.clone(); 628 } 629 userSetLocale = o.userSetLocale; 630 touchscreen = o.touchscreen; 631 keyboard = o.keyboard; 632 keyboardHidden = o.keyboardHidden; 633 hardKeyboardHidden = o.hardKeyboardHidden; 634 navigation = o.navigation; 635 navigationHidden = o.navigationHidden; 636 orientation = o.orientation; 637 screenLayout = o.screenLayout; 638 uiMode = o.uiMode; 639 screenWidthDp = o.screenWidthDp; 640 screenHeightDp = o.screenHeightDp; 641 smallestScreenWidthDp = o.smallestScreenWidthDp; 642 densityDpi = o.densityDpi; 643 compatScreenWidthDp = o.compatScreenWidthDp; 644 compatScreenHeightDp = o.compatScreenHeightDp; 645 compatSmallestScreenWidthDp = o.compatSmallestScreenWidthDp; 646 seq = o.seq; 647 } 648 649 public String toString() { 650 StringBuilder sb = new StringBuilder(128); 651 sb.append("{"); 652 sb.append(fontScale); 653 sb.append(" "); 654 if (mcc != 0) { 655 sb.append(mcc); 656 sb.append("mcc"); 657 } else { 658 sb.append("?mcc"); 659 } 660 if (mnc != 0) { 661 sb.append(mnc); 662 sb.append("mnc"); 663 } else { 664 sb.append("?mnc"); 665 } 666 if (locale != null) { 667 sb.append(" "); 668 sb.append(locale); 669 } else { 670 sb.append(" ?locale"); 671 } 672 int layoutDir = (screenLayout&SCREENLAYOUT_LAYOUTDIR_MASK); 673 switch (layoutDir) { 674 case SCREENLAYOUT_LAYOUTDIR_UNDEFINED: sb.append(" ?layoutDir"); break; 675 case SCREENLAYOUT_LAYOUTDIR_LTR: sb.append(" ldltr"); break; 676 case SCREENLAYOUT_LAYOUTDIR_RTL: sb.append(" ldrtl"); break; 677 default: sb.append(" layoutDir="); 678 sb.append(layoutDir >> SCREENLAYOUT_LAYOUTDIR_SHIFT); break; 679 } 680 if (smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED) { 681 sb.append(" sw"); sb.append(smallestScreenWidthDp); sb.append("dp"); 682 } else { 683 sb.append(" ?swdp"); 684 } 685 if (screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED) { 686 sb.append(" w"); sb.append(screenWidthDp); sb.append("dp"); 687 } else { 688 sb.append(" ?wdp"); 689 } 690 if (screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED) { 691 sb.append(" h"); sb.append(screenHeightDp); sb.append("dp"); 692 } else { 693 sb.append(" ?hdp"); 694 } 695 if (densityDpi != DENSITY_DPI_UNDEFINED) { 696 sb.append(" "); sb.append(densityDpi); sb.append("dpi"); 697 } else { 698 sb.append(" ?density"); 699 } 700 switch ((screenLayout&SCREENLAYOUT_SIZE_MASK)) { 701 case SCREENLAYOUT_SIZE_UNDEFINED: sb.append(" ?lsize"); break; 702 case SCREENLAYOUT_SIZE_SMALL: sb.append(" smll"); break; 703 case SCREENLAYOUT_SIZE_NORMAL: sb.append(" nrml"); break; 704 case SCREENLAYOUT_SIZE_LARGE: sb.append(" lrg"); break; 705 case SCREENLAYOUT_SIZE_XLARGE: sb.append(" xlrg"); break; 706 default: sb.append(" layoutSize="); 707 sb.append(screenLayout&SCREENLAYOUT_SIZE_MASK); break; 708 } 709 switch ((screenLayout&SCREENLAYOUT_LONG_MASK)) { 710 case SCREENLAYOUT_LONG_UNDEFINED: sb.append(" ?long"); break; 711 case SCREENLAYOUT_LONG_NO: /* not-long is not interesting to print */ break; 712 case SCREENLAYOUT_LONG_YES: sb.append(" long"); break; 713 default: sb.append(" layoutLong="); 714 sb.append(screenLayout&SCREENLAYOUT_LONG_MASK); break; 715 } 716 switch (orientation) { 717 case ORIENTATION_UNDEFINED: sb.append(" ?orien"); break; 718 case ORIENTATION_LANDSCAPE: sb.append(" land"); break; 719 case ORIENTATION_PORTRAIT: sb.append(" port"); break; 720 default: sb.append(" orien="); sb.append(orientation); break; 721 } 722 switch ((uiMode&UI_MODE_TYPE_MASK)) { 723 case UI_MODE_TYPE_UNDEFINED: sb.append(" ?uimode"); break; 724 case UI_MODE_TYPE_NORMAL: /* normal is not interesting to print */ break; 725 case UI_MODE_TYPE_DESK: sb.append(" desk"); break; 726 case UI_MODE_TYPE_CAR: sb.append(" car"); break; 727 case UI_MODE_TYPE_TELEVISION: sb.append(" television"); break; 728 case UI_MODE_TYPE_APPLIANCE: sb.append(" appliance"); break; 729 case UI_MODE_TYPE_WATCH: sb.append(" watch"); break; 730 default: sb.append(" uimode="); sb.append(uiMode&UI_MODE_TYPE_MASK); break; 731 } 732 switch ((uiMode&UI_MODE_NIGHT_MASK)) { 733 case UI_MODE_NIGHT_UNDEFINED: sb.append(" ?night"); break; 734 case UI_MODE_NIGHT_NO: /* not-night is not interesting to print */ break; 735 case UI_MODE_NIGHT_YES: sb.append(" night"); break; 736 default: sb.append(" night="); sb.append(uiMode&UI_MODE_NIGHT_MASK); break; 737 } 738 switch (touchscreen) { 739 case TOUCHSCREEN_UNDEFINED: sb.append(" ?touch"); break; 740 case TOUCHSCREEN_NOTOUCH: sb.append(" -touch"); break; 741 case TOUCHSCREEN_STYLUS: sb.append(" stylus"); break; 742 case TOUCHSCREEN_FINGER: sb.append(" finger"); break; 743 default: sb.append(" touch="); sb.append(touchscreen); break; 744 } 745 switch (keyboard) { 746 case KEYBOARD_UNDEFINED: sb.append(" ?keyb"); break; 747 case KEYBOARD_NOKEYS: sb.append(" -keyb"); break; 748 case KEYBOARD_QWERTY: sb.append(" qwerty"); break; 749 case KEYBOARD_12KEY: sb.append(" 12key"); break; 750 default: sb.append(" keys="); sb.append(keyboard); break; 751 } 752 switch (keyboardHidden) { 753 case KEYBOARDHIDDEN_UNDEFINED: sb.append("/?"); break; 754 case KEYBOARDHIDDEN_NO: sb.append("/v"); break; 755 case KEYBOARDHIDDEN_YES: sb.append("/h"); break; 756 case KEYBOARDHIDDEN_SOFT: sb.append("/s"); break; 757 default: sb.append("/"); sb.append(keyboardHidden); break; 758 } 759 switch (hardKeyboardHidden) { 760 case HARDKEYBOARDHIDDEN_UNDEFINED: sb.append("/?"); break; 761 case HARDKEYBOARDHIDDEN_NO: sb.append("/v"); break; 762 case HARDKEYBOARDHIDDEN_YES: sb.append("/h"); break; 763 default: sb.append("/"); sb.append(hardKeyboardHidden); break; 764 } 765 switch (navigation) { 766 case NAVIGATION_UNDEFINED: sb.append(" ?nav"); break; 767 case NAVIGATION_NONAV: sb.append(" -nav"); break; 768 case NAVIGATION_DPAD: sb.append(" dpad"); break; 769 case NAVIGATION_TRACKBALL: sb.append(" tball"); break; 770 case NAVIGATION_WHEEL: sb.append(" wheel"); break; 771 default: sb.append(" nav="); sb.append(navigation); break; 772 } 773 switch (navigationHidden) { 774 case NAVIGATIONHIDDEN_UNDEFINED: sb.append("/?"); break; 775 case NAVIGATIONHIDDEN_NO: sb.append("/v"); break; 776 case NAVIGATIONHIDDEN_YES: sb.append("/h"); break; 777 default: sb.append("/"); sb.append(navigationHidden); break; 778 } 779 if (seq != 0) { 780 sb.append(" s."); 781 sb.append(seq); 782 } 783 sb.append('}'); 784 return sb.toString(); 785 } 786 787 /** 788 * Set this object to the system defaults. 789 */ 790 public void setToDefaults() { 791 fontScale = 1; 792 mcc = mnc = 0; 793 locale = null; 794 userSetLocale = false; 795 touchscreen = TOUCHSCREEN_UNDEFINED; 796 keyboard = KEYBOARD_UNDEFINED; 797 keyboardHidden = KEYBOARDHIDDEN_UNDEFINED; 798 hardKeyboardHidden = HARDKEYBOARDHIDDEN_UNDEFINED; 799 navigation = NAVIGATION_UNDEFINED; 800 navigationHidden = NAVIGATIONHIDDEN_UNDEFINED; 801 orientation = ORIENTATION_UNDEFINED; 802 screenLayout = SCREENLAYOUT_UNDEFINED; 803 uiMode = UI_MODE_TYPE_UNDEFINED; 804 screenWidthDp = compatScreenWidthDp = SCREEN_WIDTH_DP_UNDEFINED; 805 screenHeightDp = compatScreenHeightDp = SCREEN_HEIGHT_DP_UNDEFINED; 806 smallestScreenWidthDp = compatSmallestScreenWidthDp = SMALLEST_SCREEN_WIDTH_DP_UNDEFINED; 807 densityDpi = DENSITY_DPI_UNDEFINED; 808 seq = 0; 809 } 810 811 /** {@hide} */ 812 @Deprecated public void makeDefault() { 813 setToDefaults(); 814 } 815 816 /** 817 * Copy the fields from delta into this Configuration object, keeping 818 * track of which ones have changed. Any undefined fields in 819 * <var>delta</var> are ignored and not copied in to the current 820 * Configuration. 821 * @return Returns a bit mask of the changed fields, as per 822 * {@link #diff}. 823 */ 824 public int updateFrom(Configuration delta) { 825 int changed = 0; 826 if (delta.fontScale > 0 && fontScale != delta.fontScale) { 827 changed |= ActivityInfo.CONFIG_FONT_SCALE; 828 fontScale = delta.fontScale; 829 } 830 if (delta.mcc != 0 && mcc != delta.mcc) { 831 changed |= ActivityInfo.CONFIG_MCC; 832 mcc = delta.mcc; 833 } 834 if (delta.mnc != 0 && mnc != delta.mnc) { 835 changed |= ActivityInfo.CONFIG_MNC; 836 mnc = delta.mnc; 837 } 838 if (delta.locale != null 839 && (locale == null || !locale.equals(delta.locale))) { 840 changed |= ActivityInfo.CONFIG_LOCALE; 841 locale = delta.locale != null 842 ? (Locale) delta.locale.clone() : null; 843 // If locale has changed, then layout direction is also changed ... 844 changed |= ActivityInfo.CONFIG_LAYOUT_DIRECTION; 845 // ... and we need to update the layout direction (represented by the first 846 // 2 most significant bits in screenLayout). 847 setLayoutDirection(locale); 848 } 849 final int deltaScreenLayoutDir = delta.screenLayout & SCREENLAYOUT_LAYOUTDIR_MASK; 850 if (deltaScreenLayoutDir != SCREENLAYOUT_LAYOUTDIR_UNDEFINED && 851 deltaScreenLayoutDir != (screenLayout & SCREENLAYOUT_LAYOUTDIR_MASK)) { 852 screenLayout = (screenLayout & ~SCREENLAYOUT_LAYOUTDIR_MASK) | deltaScreenLayoutDir; 853 changed |= ActivityInfo.CONFIG_LAYOUT_DIRECTION; 854 } 855 if (delta.userSetLocale && (!userSetLocale || ((changed & ActivityInfo.CONFIG_LOCALE) != 0))) 856 { 857 changed |= ActivityInfo.CONFIG_LOCALE; 858 userSetLocale = true; 859 } 860 if (delta.touchscreen != TOUCHSCREEN_UNDEFINED 861 && touchscreen != delta.touchscreen) { 862 changed |= ActivityInfo.CONFIG_TOUCHSCREEN; 863 touchscreen = delta.touchscreen; 864 } 865 if (delta.keyboard != KEYBOARD_UNDEFINED 866 && keyboard != delta.keyboard) { 867 changed |= ActivityInfo.CONFIG_KEYBOARD; 868 keyboard = delta.keyboard; 869 } 870 if (delta.keyboardHidden != KEYBOARDHIDDEN_UNDEFINED 871 && keyboardHidden != delta.keyboardHidden) { 872 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 873 keyboardHidden = delta.keyboardHidden; 874 } 875 if (delta.hardKeyboardHidden != HARDKEYBOARDHIDDEN_UNDEFINED 876 && hardKeyboardHidden != delta.hardKeyboardHidden) { 877 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 878 hardKeyboardHidden = delta.hardKeyboardHidden; 879 } 880 if (delta.navigation != NAVIGATION_UNDEFINED 881 && navigation != delta.navigation) { 882 changed |= ActivityInfo.CONFIG_NAVIGATION; 883 navigation = delta.navigation; 884 } 885 if (delta.navigationHidden != NAVIGATIONHIDDEN_UNDEFINED 886 && navigationHidden != delta.navigationHidden) { 887 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 888 navigationHidden = delta.navigationHidden; 889 } 890 if (delta.orientation != ORIENTATION_UNDEFINED 891 && orientation != delta.orientation) { 892 changed |= ActivityInfo.CONFIG_ORIENTATION; 893 orientation = delta.orientation; 894 } 895 if (getScreenLayoutNoDirection(delta.screenLayout) != 896 (SCREENLAYOUT_SIZE_UNDEFINED | SCREENLAYOUT_LONG_UNDEFINED) 897 && (getScreenLayoutNoDirection(screenLayout) != 898 getScreenLayoutNoDirection(delta.screenLayout))) { 899 changed |= ActivityInfo.CONFIG_SCREEN_LAYOUT; 900 // We need to preserve the previous layout dir bits if they were defined 901 if ((delta.screenLayout&SCREENLAYOUT_LAYOUTDIR_MASK) == 0) { 902 screenLayout = (screenLayout&SCREENLAYOUT_LAYOUTDIR_MASK)|delta.screenLayout; 903 } else { 904 screenLayout = delta.screenLayout; 905 } 906 } 907 if (delta.uiMode != (UI_MODE_TYPE_UNDEFINED|UI_MODE_NIGHT_UNDEFINED) 908 && uiMode != delta.uiMode) { 909 changed |= ActivityInfo.CONFIG_UI_MODE; 910 if ((delta.uiMode&UI_MODE_TYPE_MASK) != UI_MODE_TYPE_UNDEFINED) { 911 uiMode = (uiMode&~UI_MODE_TYPE_MASK) 912 | (delta.uiMode&UI_MODE_TYPE_MASK); 913 } 914 if ((delta.uiMode&UI_MODE_NIGHT_MASK) != UI_MODE_NIGHT_UNDEFINED) { 915 uiMode = (uiMode&~UI_MODE_NIGHT_MASK) 916 | (delta.uiMode&UI_MODE_NIGHT_MASK); 917 } 918 } 919 if (delta.screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED 920 && screenWidthDp != delta.screenWidthDp) { 921 changed |= ActivityInfo.CONFIG_SCREEN_SIZE; 922 screenWidthDp = delta.screenWidthDp; 923 } 924 if (delta.screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED 925 && screenHeightDp != delta.screenHeightDp) { 926 changed |= ActivityInfo.CONFIG_SCREEN_SIZE; 927 screenHeightDp = delta.screenHeightDp; 928 } 929 if (delta.smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED 930 && smallestScreenWidthDp != delta.smallestScreenWidthDp) { 931 changed |= ActivityInfo.CONFIG_SMALLEST_SCREEN_SIZE; 932 smallestScreenWidthDp = delta.smallestScreenWidthDp; 933 } 934 if (delta.densityDpi != DENSITY_DPI_UNDEFINED && 935 densityDpi != delta.densityDpi) { 936 changed |= ActivityInfo.CONFIG_DENSITY; 937 densityDpi = delta.densityDpi; 938 } 939 if (delta.compatScreenWidthDp != SCREEN_WIDTH_DP_UNDEFINED) { 940 compatScreenWidthDp = delta.compatScreenWidthDp; 941 } 942 if (delta.compatScreenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED) { 943 compatScreenHeightDp = delta.compatScreenHeightDp; 944 } 945 if (delta.compatSmallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED) { 946 compatSmallestScreenWidthDp = delta.compatSmallestScreenWidthDp; 947 } 948 if (delta.seq != 0) { 949 seq = delta.seq; 950 } 951 952 return changed; 953 } 954 955 /** 956 * Return a bit mask of the differences between this Configuration 957 * object and the given one. Does not change the values of either. Any 958 * undefined fields in <var>delta</var> are ignored. 959 * @return Returns a bit mask indicating which configuration 960 * values has changed, containing any combination of 961 * {@link android.content.pm.ActivityInfo#CONFIG_FONT_SCALE 962 * PackageManager.ActivityInfo.CONFIG_FONT_SCALE}, 963 * {@link android.content.pm.ActivityInfo#CONFIG_MCC 964 * PackageManager.ActivityInfo.CONFIG_MCC}, 965 * {@link android.content.pm.ActivityInfo#CONFIG_MNC 966 * PackageManager.ActivityInfo.CONFIG_MNC}, 967 * {@link android.content.pm.ActivityInfo#CONFIG_LOCALE 968 * PackageManager.ActivityInfo.CONFIG_LOCALE}, 969 * {@link android.content.pm.ActivityInfo#CONFIG_TOUCHSCREEN 970 * PackageManager.ActivityInfo.CONFIG_TOUCHSCREEN}, 971 * {@link android.content.pm.ActivityInfo#CONFIG_KEYBOARD 972 * PackageManager.ActivityInfo.CONFIG_KEYBOARD}, 973 * {@link android.content.pm.ActivityInfo#CONFIG_NAVIGATION 974 * PackageManager.ActivityInfo.CONFIG_NAVIGATION}, 975 * {@link android.content.pm.ActivityInfo#CONFIG_ORIENTATION 976 * PackageManager.ActivityInfo.CONFIG_ORIENTATION}, 977 * {@link android.content.pm.ActivityInfo#CONFIG_SCREEN_LAYOUT 978 * PackageManager.ActivityInfo.CONFIG_SCREEN_LAYOUT}, or 979 * {@link android.content.pm.ActivityInfo#CONFIG_SCREEN_SIZE 980 * PackageManager.ActivityInfo.CONFIG_SCREEN_SIZE}, or 981 * {@link android.content.pm.ActivityInfo#CONFIG_SMALLEST_SCREEN_SIZE 982 * PackageManager.ActivityInfo.CONFIG_SMALLEST_SCREEN_SIZE}. 983 * {@link android.content.pm.ActivityInfo#CONFIG_LAYOUT_DIRECTION 984 * PackageManager.ActivityInfo.CONFIG_LAYOUT_DIRECTION}. 985 */ 986 public int diff(Configuration delta) { 987 int changed = 0; 988 if (delta.fontScale > 0 && fontScale != delta.fontScale) { 989 changed |= ActivityInfo.CONFIG_FONT_SCALE; 990 } 991 if (delta.mcc != 0 && mcc != delta.mcc) { 992 changed |= ActivityInfo.CONFIG_MCC; 993 } 994 if (delta.mnc != 0 && mnc != delta.mnc) { 995 changed |= ActivityInfo.CONFIG_MNC; 996 } 997 if (delta.locale != null 998 && (locale == null || !locale.equals(delta.locale))) { 999 changed |= ActivityInfo.CONFIG_LOCALE; 1000 changed |= ActivityInfo.CONFIG_LAYOUT_DIRECTION; 1001 } 1002 final int deltaScreenLayoutDir = delta.screenLayout & SCREENLAYOUT_LAYOUTDIR_MASK; 1003 if (deltaScreenLayoutDir != SCREENLAYOUT_LAYOUTDIR_UNDEFINED && 1004 deltaScreenLayoutDir != (screenLayout & SCREENLAYOUT_LAYOUTDIR_MASK)) { 1005 changed |= ActivityInfo.CONFIG_LAYOUT_DIRECTION; 1006 } 1007 if (delta.touchscreen != TOUCHSCREEN_UNDEFINED 1008 && touchscreen != delta.touchscreen) { 1009 changed |= ActivityInfo.CONFIG_TOUCHSCREEN; 1010 } 1011 if (delta.keyboard != KEYBOARD_UNDEFINED 1012 && keyboard != delta.keyboard) { 1013 changed |= ActivityInfo.CONFIG_KEYBOARD; 1014 } 1015 if (delta.keyboardHidden != KEYBOARDHIDDEN_UNDEFINED 1016 && keyboardHidden != delta.keyboardHidden) { 1017 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 1018 } 1019 if (delta.hardKeyboardHidden != HARDKEYBOARDHIDDEN_UNDEFINED 1020 && hardKeyboardHidden != delta.hardKeyboardHidden) { 1021 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 1022 } 1023 if (delta.navigation != NAVIGATION_UNDEFINED 1024 && navigation != delta.navigation) { 1025 changed |= ActivityInfo.CONFIG_NAVIGATION; 1026 } 1027 if (delta.navigationHidden != NAVIGATIONHIDDEN_UNDEFINED 1028 && navigationHidden != delta.navigationHidden) { 1029 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 1030 } 1031 if (delta.orientation != ORIENTATION_UNDEFINED 1032 && orientation != delta.orientation) { 1033 changed |= ActivityInfo.CONFIG_ORIENTATION; 1034 } 1035 if (getScreenLayoutNoDirection(delta.screenLayout) != 1036 (SCREENLAYOUT_SIZE_UNDEFINED | SCREENLAYOUT_LONG_UNDEFINED) 1037 && getScreenLayoutNoDirection(screenLayout) != 1038 getScreenLayoutNoDirection(delta.screenLayout)) { 1039 changed |= ActivityInfo.CONFIG_SCREEN_LAYOUT; 1040 } 1041 if (delta.uiMode != (UI_MODE_TYPE_UNDEFINED|UI_MODE_NIGHT_UNDEFINED) 1042 && uiMode != delta.uiMode) { 1043 changed |= ActivityInfo.CONFIG_UI_MODE; 1044 } 1045 if (delta.screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED 1046 && screenWidthDp != delta.screenWidthDp) { 1047 changed |= ActivityInfo.CONFIG_SCREEN_SIZE; 1048 } 1049 if (delta.screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED 1050 && screenHeightDp != delta.screenHeightDp) { 1051 changed |= ActivityInfo.CONFIG_SCREEN_SIZE; 1052 } 1053 if (delta.smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED 1054 && smallestScreenWidthDp != delta.smallestScreenWidthDp) { 1055 changed |= ActivityInfo.CONFIG_SMALLEST_SCREEN_SIZE; 1056 } 1057 if (delta.densityDpi != DENSITY_DPI_UNDEFINED 1058 && densityDpi != delta.densityDpi) { 1059 changed |= ActivityInfo.CONFIG_DENSITY; 1060 } 1061 1062 return changed; 1063 } 1064 1065 /** 1066 * Determine if a new resource needs to be loaded from the bit set of 1067 * configuration changes returned by {@link #updateFrom(Configuration)}. 1068 * 1069 * @param configChanges The mask of changes configurations as returned by 1070 * {@link #updateFrom(Configuration)}. 1071 * @param interestingChanges The configuration changes that the resource 1072 * can handled, as given in {@link android.util.TypedValue#changingConfigurations}. 1073 * 1074 * @return Return true if the resource needs to be loaded, else false. 1075 */ 1076 public static boolean needNewResources(int configChanges, int interestingChanges) { 1077 return (configChanges & (interestingChanges|ActivityInfo.CONFIG_FONT_SCALE)) != 0; 1078 } 1079 1080 /** 1081 * @hide Return true if the sequence of 'other' is better than this. Assumes 1082 * that 'this' is your current sequence and 'other' is a new one you have 1083 * received some how and want to compare with what you have. 1084 */ 1085 public boolean isOtherSeqNewer(Configuration other) { 1086 if (other == null) { 1087 // Sanity check. 1088 return false; 1089 } 1090 if (other.seq == 0) { 1091 // If the other sequence is not specified, then we must assume 1092 // it is newer since we don't know any better. 1093 return true; 1094 } 1095 if (seq == 0) { 1096 // If this sequence is not specified, then we also consider the 1097 // other is better. Yes we have a preference for other. Sue us. 1098 return true; 1099 } 1100 int diff = other.seq - seq; 1101 if (diff > 0x10000) { 1102 // If there has been a sufficiently large jump, assume the 1103 // sequence has wrapped around. 1104 return false; 1105 } 1106 return diff > 0; 1107 } 1108 1109 /** 1110 * Parcelable methods 1111 */ 1112 public int describeContents() { 1113 return 0; 1114 } 1115 1116 public void writeToParcel(Parcel dest, int flags) { 1117 dest.writeFloat(fontScale); 1118 dest.writeInt(mcc); 1119 dest.writeInt(mnc); 1120 if (locale == null) { 1121 dest.writeInt(0); 1122 } else { 1123 dest.writeInt(1); 1124 dest.writeString(locale.getLanguage()); 1125 dest.writeString(locale.getCountry()); 1126 dest.writeString(locale.getVariant()); 1127 } 1128 if(userSetLocale) { 1129 dest.writeInt(1); 1130 } else { 1131 dest.writeInt(0); 1132 } 1133 dest.writeInt(touchscreen); 1134 dest.writeInt(keyboard); 1135 dest.writeInt(keyboardHidden); 1136 dest.writeInt(hardKeyboardHidden); 1137 dest.writeInt(navigation); 1138 dest.writeInt(navigationHidden); 1139 dest.writeInt(orientation); 1140 dest.writeInt(screenLayout); 1141 dest.writeInt(uiMode); 1142 dest.writeInt(screenWidthDp); 1143 dest.writeInt(screenHeightDp); 1144 dest.writeInt(smallestScreenWidthDp); 1145 dest.writeInt(densityDpi); 1146 dest.writeInt(compatScreenWidthDp); 1147 dest.writeInt(compatScreenHeightDp); 1148 dest.writeInt(compatSmallestScreenWidthDp); 1149 dest.writeInt(seq); 1150 } 1151 1152 public void readFromParcel(Parcel source) { 1153 fontScale = source.readFloat(); 1154 mcc = source.readInt(); 1155 mnc = source.readInt(); 1156 if (source.readInt() != 0) { 1157 locale = new Locale(source.readString(), source.readString(), 1158 source.readString()); 1159 } 1160 userSetLocale = (source.readInt()==1); 1161 touchscreen = source.readInt(); 1162 keyboard = source.readInt(); 1163 keyboardHidden = source.readInt(); 1164 hardKeyboardHidden = source.readInt(); 1165 navigation = source.readInt(); 1166 navigationHidden = source.readInt(); 1167 orientation = source.readInt(); 1168 screenLayout = source.readInt(); 1169 uiMode = source.readInt(); 1170 screenWidthDp = source.readInt(); 1171 screenHeightDp = source.readInt(); 1172 smallestScreenWidthDp = source.readInt(); 1173 densityDpi = source.readInt(); 1174 compatScreenWidthDp = source.readInt(); 1175 compatScreenHeightDp = source.readInt(); 1176 compatSmallestScreenWidthDp = source.readInt(); 1177 seq = source.readInt(); 1178 } 1179 1180 public static final Parcelable.Creator<Configuration> CREATOR 1181 = new Parcelable.Creator<Configuration>() { 1182 public Configuration createFromParcel(Parcel source) { 1183 return new Configuration(source); 1184 } 1185 1186 public Configuration[] newArray(int size) { 1187 return new Configuration[size]; 1188 } 1189 }; 1190 1191 /** 1192 * Construct this Configuration object, reading from the Parcel. 1193 */ 1194 private Configuration(Parcel source) { 1195 readFromParcel(source); 1196 } 1197 1198 public int compareTo(Configuration that) { 1199 int n; 1200 float a = this.fontScale; 1201 float b = that.fontScale; 1202 if (a < b) return -1; 1203 if (a > b) return 1; 1204 n = this.mcc - that.mcc; 1205 if (n != 0) return n; 1206 n = this.mnc - that.mnc; 1207 if (n != 0) return n; 1208 if (this.locale == null) { 1209 if (that.locale != null) return 1; 1210 } else if (that.locale == null) { 1211 return -1; 1212 } else { 1213 n = this.locale.getLanguage().compareTo(that.locale.getLanguage()); 1214 if (n != 0) return n; 1215 n = this.locale.getCountry().compareTo(that.locale.getCountry()); 1216 if (n != 0) return n; 1217 n = this.locale.getVariant().compareTo(that.locale.getVariant()); 1218 if (n != 0) return n; 1219 } 1220 n = this.touchscreen - that.touchscreen; 1221 if (n != 0) return n; 1222 n = this.keyboard - that.keyboard; 1223 if (n != 0) return n; 1224 n = this.keyboardHidden - that.keyboardHidden; 1225 if (n != 0) return n; 1226 n = this.hardKeyboardHidden - that.hardKeyboardHidden; 1227 if (n != 0) return n; 1228 n = this.navigation - that.navigation; 1229 if (n != 0) return n; 1230 n = this.navigationHidden - that.navigationHidden; 1231 if (n != 0) return n; 1232 n = this.orientation - that.orientation; 1233 if (n != 0) return n; 1234 n = this.screenLayout - that.screenLayout; 1235 if (n != 0) return n; 1236 n = this.uiMode - that.uiMode; 1237 if (n != 0) return n; 1238 n = this.screenWidthDp - that.screenWidthDp; 1239 if (n != 0) return n; 1240 n = this.screenHeightDp - that.screenHeightDp; 1241 if (n != 0) return n; 1242 n = this.smallestScreenWidthDp - that.smallestScreenWidthDp; 1243 if (n != 0) return n; 1244 n = this.densityDpi - that.densityDpi; 1245 //if (n != 0) return n; 1246 return n; 1247 } 1248 1249 public boolean equals(Configuration that) { 1250 if (that == null) return false; 1251 if (that == this) return true; 1252 return this.compareTo(that) == 0; 1253 } 1254 1255 public boolean equals(Object that) { 1256 try { 1257 return equals((Configuration)that); 1258 } catch (ClassCastException e) { 1259 } 1260 return false; 1261 } 1262 1263 public int hashCode() { 1264 int result = 17; 1265 result = 31 * result + Float.floatToIntBits(fontScale); 1266 result = 31 * result + mcc; 1267 result = 31 * result + mnc; 1268 result = 31 * result + (locale != null ? locale.hashCode() : 0); 1269 result = 31 * result + touchscreen; 1270 result = 31 * result + keyboard; 1271 result = 31 * result + keyboardHidden; 1272 result = 31 * result + hardKeyboardHidden; 1273 result = 31 * result + navigation; 1274 result = 31 * result + navigationHidden; 1275 result = 31 * result + orientation; 1276 result = 31 * result + screenLayout; 1277 result = 31 * result + uiMode; 1278 result = 31 * result + screenWidthDp; 1279 result = 31 * result + screenHeightDp; 1280 result = 31 * result + smallestScreenWidthDp; 1281 result = 31 * result + densityDpi; 1282 return result; 1283 } 1284 1285 /** 1286 * Set the locale. This is the preferred way for setting up the locale (instead of using the 1287 * direct accessor). This will also set the userLocale and layout direction according to 1288 * the locale. 1289 * 1290 * @param loc The locale. Can be null. 1291 */ 1292 public void setLocale(Locale loc) { 1293 locale = loc; 1294 userSetLocale = true; 1295 setLayoutDirection(locale); 1296 } 1297 1298 /** 1299 * Return the layout direction. Will be either {@link View#LAYOUT_DIRECTION_LTR} or 1300 * {@link View#LAYOUT_DIRECTION_RTL}. 1301 * 1302 * @return Returns {@link View#LAYOUT_DIRECTION_RTL} if the configuration 1303 * is {@link #SCREENLAYOUT_LAYOUTDIR_RTL}, otherwise {@link View#LAYOUT_DIRECTION_LTR}. 1304 */ 1305 public int getLayoutDirection() { 1306 return (screenLayout&SCREENLAYOUT_LAYOUTDIR_MASK) == SCREENLAYOUT_LAYOUTDIR_RTL 1307 ? View.LAYOUT_DIRECTION_RTL : View.LAYOUT_DIRECTION_LTR; 1308 } 1309 1310 /** 1311 * Set the layout direction from the Locale. 1312 * 1313 * @param locale The Locale. If null will set the layout direction to 1314 * {@link View#LAYOUT_DIRECTION_LTR}. If not null will set it to the layout direction 1315 * corresponding to the Locale. 1316 * 1317 * @see {@link View#LAYOUT_DIRECTION_LTR} and {@link View#LAYOUT_DIRECTION_RTL} 1318 */ 1319 public void setLayoutDirection(Locale locale) { 1320 // There is a "1" difference between the configuration values for 1321 // layout direction and View constants for layout direction, just add "1". 1322 final int layoutDirection = 1 + TextUtils.getLayoutDirectionFromLocale(locale); 1323 screenLayout = (screenLayout&~SCREENLAYOUT_LAYOUTDIR_MASK)| 1324 (layoutDirection << SCREENLAYOUT_LAYOUTDIR_SHIFT); 1325 } 1326 1327 private static int getScreenLayoutNoDirection(int screenLayout) { 1328 return screenLayout&~SCREENLAYOUT_LAYOUTDIR_MASK; 1329 } 1330 1331 /** 1332 * 1333 * @hide 1334 */ 1335 public static String localeToResourceQualifier(Locale locale) { 1336 StringBuilder sb = new StringBuilder(); 1337 boolean l = (locale.getLanguage().length() != 0); 1338 boolean c = (locale.getCountry().length() != 0); 1339 boolean s = (locale.getScript().length() != 0); 1340 boolean v = (locale.getVariant().length() != 0); 1341 1342 if (l) { 1343 sb.append(locale.getLanguage()); 1344 if (c) { 1345 sb.append("-r").append(locale.getCountry()); 1346 if (s) { 1347 sb.append("-s").append(locale.getScript()); 1348 if (v) { 1349 sb.append("-v").append(locale.getVariant()); 1350 } 1351 } 1352 } 1353 } 1354 return sb.toString(); 1355 } 1356 1357 1358 /** 1359 * Returns a string representation of the configuration that can be parsed 1360 * by build tools (like AAPT). 1361 * 1362 * @hide 1363 */ 1364 public static String resourceQualifierString(Configuration config) { 1365 ArrayList<String> parts = new ArrayList<String>(); 1366 1367 if (config.mcc != 0) { 1368 parts.add("mcc" + config.mcc); 1369 if (config.mnc != 0) { 1370 parts.add("mnc" + config.mnc); 1371 } 1372 } 1373 1374 if (config.locale != null && !config.locale.getLanguage().isEmpty()) { 1375 parts.add(localeToResourceQualifier(config.locale)); 1376 } 1377 1378 switch (config.screenLayout & Configuration.SCREENLAYOUT_LAYOUTDIR_MASK) { 1379 case Configuration.SCREENLAYOUT_LAYOUTDIR_LTR: 1380 parts.add("ldltr"); 1381 break; 1382 case Configuration.SCREENLAYOUT_LAYOUTDIR_RTL: 1383 parts.add("ldrtl"); 1384 break; 1385 default: 1386 break; 1387 } 1388 1389 if (config.smallestScreenWidthDp != 0) { 1390 parts.add("sw" + config.smallestScreenWidthDp + "dp"); 1391 } 1392 1393 if (config.screenWidthDp != 0) { 1394 parts.add("w" + config.screenWidthDp + "dp"); 1395 } 1396 1397 if (config.screenHeightDp != 0) { 1398 parts.add("h" + config.screenHeightDp + "dp"); 1399 } 1400 1401 switch (config.screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) { 1402 case Configuration.SCREENLAYOUT_SIZE_SMALL: 1403 parts.add("small"); 1404 break; 1405 case Configuration.SCREENLAYOUT_SIZE_NORMAL: 1406 parts.add("normal"); 1407 break; 1408 case Configuration.SCREENLAYOUT_SIZE_LARGE: 1409 parts.add("large"); 1410 break; 1411 case Configuration.SCREENLAYOUT_SIZE_XLARGE: 1412 parts.add("xlarge"); 1413 break; 1414 default: 1415 break; 1416 } 1417 1418 switch (config.screenLayout & Configuration.SCREENLAYOUT_LONG_MASK) { 1419 case Configuration.SCREENLAYOUT_LONG_YES: 1420 parts.add("long"); 1421 break; 1422 case Configuration.SCREENLAYOUT_LONG_NO: 1423 parts.add("notlong"); 1424 break; 1425 default: 1426 break; 1427 } 1428 1429 switch (config.orientation) { 1430 case Configuration.ORIENTATION_LANDSCAPE: 1431 parts.add("land"); 1432 break; 1433 case Configuration.ORIENTATION_PORTRAIT: 1434 parts.add("port"); 1435 break; 1436 default: 1437 break; 1438 } 1439 1440 switch (config.uiMode & Configuration.UI_MODE_TYPE_MASK) { 1441 case Configuration.UI_MODE_TYPE_APPLIANCE: 1442 parts.add("appliance"); 1443 break; 1444 case Configuration.UI_MODE_TYPE_DESK: 1445 parts.add("desk"); 1446 break; 1447 case Configuration.UI_MODE_TYPE_TELEVISION: 1448 parts.add("television"); 1449 break; 1450 case Configuration.UI_MODE_TYPE_CAR: 1451 parts.add("car"); 1452 break; 1453 case Configuration.UI_MODE_TYPE_WATCH: 1454 parts.add("watch"); 1455 break; 1456 default: 1457 break; 1458 } 1459 1460 switch (config.uiMode & Configuration.UI_MODE_NIGHT_MASK) { 1461 case Configuration.UI_MODE_NIGHT_YES: 1462 parts.add("night"); 1463 break; 1464 case Configuration.UI_MODE_NIGHT_NO: 1465 parts.add("notnight"); 1466 break; 1467 default: 1468 break; 1469 } 1470 1471 switch (config.densityDpi) { 1472 case DENSITY_DPI_UNDEFINED: 1473 break; 1474 case 120: 1475 parts.add("ldpi"); 1476 break; 1477 case 160: 1478 parts.add("mdpi"); 1479 break; 1480 case 213: 1481 parts.add("tvdpi"); 1482 break; 1483 case 240: 1484 parts.add("hdpi"); 1485 break; 1486 case 320: 1487 parts.add("xhdpi"); 1488 break; 1489 case 480: 1490 parts.add("xxhdpi"); 1491 break; 1492 case 640: 1493 parts.add("xxxhdpi"); 1494 break; 1495 case DENSITY_DPI_ANY: 1496 parts.add("anydpi"); 1497 break; 1498 case DENSITY_DPI_NONE: 1499 parts.add("nodpi"); 1500 default: 1501 parts.add(config.densityDpi + "dpi"); 1502 break; 1503 } 1504 1505 switch (config.touchscreen) { 1506 case Configuration.TOUCHSCREEN_NOTOUCH: 1507 parts.add("notouch"); 1508 break; 1509 case Configuration.TOUCHSCREEN_FINGER: 1510 parts.add("finger"); 1511 break; 1512 default: 1513 break; 1514 } 1515 1516 switch (config.keyboardHidden) { 1517 case Configuration.KEYBOARDHIDDEN_NO: 1518 parts.add("keysexposed"); 1519 break; 1520 case Configuration.KEYBOARDHIDDEN_YES: 1521 parts.add("keyshidden"); 1522 break; 1523 case Configuration.KEYBOARDHIDDEN_SOFT: 1524 parts.add("keyssoft"); 1525 break; 1526 default: 1527 break; 1528 } 1529 1530 switch (config.keyboard) { 1531 case Configuration.KEYBOARD_NOKEYS: 1532 parts.add("nokeys"); 1533 break; 1534 case Configuration.KEYBOARD_QWERTY: 1535 parts.add("qwerty"); 1536 break; 1537 case Configuration.KEYBOARD_12KEY: 1538 parts.add("12key"); 1539 break; 1540 default: 1541 break; 1542 } 1543 1544 switch (config.navigationHidden) { 1545 case Configuration.NAVIGATIONHIDDEN_NO: 1546 parts.add("navexposed"); 1547 break; 1548 case Configuration.NAVIGATIONHIDDEN_YES: 1549 parts.add("navhidden"); 1550 break; 1551 default: 1552 break; 1553 } 1554 1555 switch (config.navigation) { 1556 case Configuration.NAVIGATION_NONAV: 1557 parts.add("nonav"); 1558 break; 1559 case Configuration.NAVIGATION_DPAD: 1560 parts.add("dpad"); 1561 break; 1562 case Configuration.NAVIGATION_TRACKBALL: 1563 parts.add("trackball"); 1564 break; 1565 case Configuration.NAVIGATION_WHEEL: 1566 parts.add("wheel"); 1567 break; 1568 default: 1569 break; 1570 } 1571 1572 parts.add("v" + Build.VERSION.RESOURCES_SDK_INT); 1573 return TextUtils.join("-", parts); 1574 } 1575 1576 /** 1577 * Generate a delta Configuration between <code>base</code> and <code>change</code>. The 1578 * resulting delta can be used with {@link #updateFrom(Configuration)}. 1579 * <p /> 1580 * Caveat: If the any of the Configuration's members becomes undefined, then 1581 * {@link #updateFrom(Configuration)} will treat it as a no-op and not update that member. 1582 * 1583 * This is fine for device configurations as no member is ever undefined. 1584 * {@hide} 1585 */ 1586 public static Configuration generateDelta(Configuration base, Configuration change) { 1587 final Configuration delta = new Configuration(); 1588 if (base.fontScale != change.fontScale) { 1589 delta.fontScale = change.fontScale; 1590 } 1591 1592 if (base.mcc != change.mcc) { 1593 delta.mcc = change.mcc; 1594 } 1595 1596 if (base.mnc != change.mnc) { 1597 delta.mnc = change.mnc; 1598 } 1599 1600 if ((base.locale == null && change.locale != null) || 1601 (base.locale != null && !base.locale.equals(change.locale))) { 1602 delta.locale = change.locale; 1603 } 1604 1605 if (base.touchscreen != change.touchscreen) { 1606 delta.touchscreen = change.touchscreen; 1607 } 1608 1609 if (base.keyboard != change.keyboard) { 1610 delta.keyboard = change.keyboard; 1611 } 1612 1613 if (base.keyboardHidden != change.keyboardHidden) { 1614 delta.keyboardHidden = change.keyboardHidden; 1615 } 1616 1617 if (base.navigation != change.navigation) { 1618 delta.navigation = change.navigation; 1619 } 1620 1621 if (base.navigationHidden != change.navigationHidden) { 1622 delta.navigationHidden = change.navigationHidden; 1623 } 1624 1625 if (base.orientation != change.orientation) { 1626 delta.orientation = change.orientation; 1627 } 1628 1629 if ((base.screenLayout & SCREENLAYOUT_SIZE_MASK) != 1630 (change.screenLayout & SCREENLAYOUT_SIZE_MASK)) { 1631 delta.screenLayout |= change.screenLayout & SCREENLAYOUT_SIZE_MASK; 1632 } 1633 1634 if ((base.screenLayout & SCREENLAYOUT_LAYOUTDIR_MASK) != 1635 (change.screenLayout & SCREENLAYOUT_LAYOUTDIR_MASK)) { 1636 delta.screenLayout |= change.screenLayout & SCREENLAYOUT_LAYOUTDIR_MASK; 1637 } 1638 1639 if ((base.screenLayout & SCREENLAYOUT_LONG_MASK) != 1640 (change.screenLayout & SCREENLAYOUT_LONG_MASK)) { 1641 delta.screenLayout |= change.screenLayout & SCREENLAYOUT_LONG_MASK; 1642 } 1643 1644 if ((base.uiMode & UI_MODE_TYPE_MASK) != (change.uiMode & UI_MODE_TYPE_MASK)) { 1645 delta.uiMode |= change.uiMode & UI_MODE_TYPE_MASK; 1646 } 1647 1648 if ((base.uiMode & UI_MODE_NIGHT_MASK) != (change.uiMode & UI_MODE_NIGHT_MASK)) { 1649 delta.uiMode |= change.uiMode & UI_MODE_NIGHT_MASK; 1650 } 1651 1652 if (base.screenWidthDp != change.screenWidthDp) { 1653 delta.screenWidthDp = change.screenWidthDp; 1654 } 1655 1656 if (base.screenHeightDp != change.screenHeightDp) { 1657 delta.screenHeightDp = change.screenHeightDp; 1658 } 1659 1660 if (base.smallestScreenWidthDp != change.smallestScreenWidthDp) { 1661 delta.smallestScreenWidthDp = change.smallestScreenWidthDp; 1662 } 1663 1664 if (base.densityDpi != change.densityDpi) { 1665 delta.densityDpi = change.densityDpi; 1666 } 1667 return delta; 1668 } 1669 1670 private static final String XML_ATTR_FONT_SCALE = "fs"; 1671 private static final String XML_ATTR_MCC = "mcc"; 1672 private static final String XML_ATTR_MNC = "mnc"; 1673 private static final String XML_ATTR_LOCALE = "locale"; 1674 private static final String XML_ATTR_TOUCHSCREEN = "touch"; 1675 private static final String XML_ATTR_KEYBOARD = "key"; 1676 private static final String XML_ATTR_KEYBOARD_HIDDEN = "keyHid"; 1677 private static final String XML_ATTR_HARD_KEYBOARD_HIDDEN = "hardKeyHid"; 1678 private static final String XML_ATTR_NAVIGATION = "nav"; 1679 private static final String XML_ATTR_NAVIGATION_HIDDEN = "navHid"; 1680 private static final String XML_ATTR_ORIENTATION = "ori"; 1681 private static final String XML_ATTR_SCREEN_LAYOUT = "scrLay"; 1682 private static final String XML_ATTR_UI_MODE = "ui"; 1683 private static final String XML_ATTR_SCREEN_WIDTH = "width"; 1684 private static final String XML_ATTR_SCREEN_HEIGHT = "height"; 1685 private static final String XML_ATTR_SMALLEST_WIDTH = "sw"; 1686 private static final String XML_ATTR_DENSITY = "density"; 1687 1688 /** 1689 * Reads the attributes corresponding to Configuration member fields from the Xml parser. 1690 * The parser is expected to be on a tag which has Configuration attributes. 1691 * 1692 * @param parser The Xml parser from which to read attributes. 1693 * @param configOut The Configuration to populate from the Xml attributes. 1694 * {@hide} 1695 */ 1696 public static void readXmlAttrs(XmlPullParser parser, Configuration configOut) 1697 throws XmlPullParserException, IOException { 1698 configOut.fontScale = Float.intBitsToFloat( 1699 XmlUtils.readIntAttribute(parser, XML_ATTR_FONT_SCALE, 0)); 1700 configOut.mcc = XmlUtils.readIntAttribute(parser, XML_ATTR_MCC, 0); 1701 configOut.mnc = XmlUtils.readIntAttribute(parser, XML_ATTR_MNC, 0); 1702 1703 final String localeStr = XmlUtils.readStringAttribute(parser, XML_ATTR_LOCALE); 1704 if (localeStr != null) { 1705 configOut.locale = Locale.forLanguageTag(localeStr); 1706 } 1707 1708 configOut.touchscreen = XmlUtils.readIntAttribute(parser, XML_ATTR_TOUCHSCREEN, 1709 TOUCHSCREEN_UNDEFINED); 1710 configOut.keyboard = XmlUtils.readIntAttribute(parser, XML_ATTR_KEYBOARD, 1711 KEYBOARD_UNDEFINED); 1712 configOut.keyboardHidden = XmlUtils.readIntAttribute(parser, XML_ATTR_KEYBOARD_HIDDEN, 1713 KEYBOARDHIDDEN_UNDEFINED); 1714 configOut.hardKeyboardHidden = 1715 XmlUtils.readIntAttribute(parser, XML_ATTR_HARD_KEYBOARD_HIDDEN, 1716 HARDKEYBOARDHIDDEN_UNDEFINED); 1717 configOut.navigation = XmlUtils.readIntAttribute(parser, XML_ATTR_NAVIGATION, 1718 NAVIGATION_UNDEFINED); 1719 configOut.navigationHidden = XmlUtils.readIntAttribute(parser, XML_ATTR_NAVIGATION_HIDDEN, 1720 NAVIGATIONHIDDEN_UNDEFINED); 1721 configOut.orientation = XmlUtils.readIntAttribute(parser, XML_ATTR_ORIENTATION, 1722 ORIENTATION_UNDEFINED); 1723 configOut.screenLayout = XmlUtils.readIntAttribute(parser, XML_ATTR_SCREEN_LAYOUT, 1724 SCREENLAYOUT_UNDEFINED); 1725 configOut.uiMode = XmlUtils.readIntAttribute(parser, XML_ATTR_UI_MODE, 0); 1726 configOut.screenWidthDp = XmlUtils.readIntAttribute(parser, XML_ATTR_SCREEN_WIDTH, 1727 SCREEN_WIDTH_DP_UNDEFINED); 1728 configOut.screenHeightDp = XmlUtils.readIntAttribute(parser, XML_ATTR_SCREEN_HEIGHT, 1729 SCREEN_HEIGHT_DP_UNDEFINED); 1730 configOut.smallestScreenWidthDp = 1731 XmlUtils.readIntAttribute(parser, XML_ATTR_SMALLEST_WIDTH, 1732 SMALLEST_SCREEN_WIDTH_DP_UNDEFINED); 1733 configOut.densityDpi = XmlUtils.readIntAttribute(parser, XML_ATTR_DENSITY, 1734 DENSITY_DPI_UNDEFINED); 1735 } 1736 1737 1738 /** 1739 * Writes the Configuration's member fields as attributes into the XmlSerializer. 1740 * The serializer is expected to have already started a tag so that attributes can be 1741 * immediately written. 1742 * 1743 * @param xml The serializer to which to write the attributes. 1744 * @param config The Configuration whose member fields to write. 1745 * {@hide} 1746 */ 1747 public static void writeXmlAttrs(XmlSerializer xml, Configuration config) throws IOException { 1748 XmlUtils.writeIntAttribute(xml, XML_ATTR_FONT_SCALE, 1749 Float.floatToIntBits(config.fontScale)); 1750 if (config.mcc != 0) { 1751 XmlUtils.writeIntAttribute(xml, XML_ATTR_MCC, config.mcc); 1752 } 1753 if (config.mnc != 0) { 1754 XmlUtils.writeIntAttribute(xml, XML_ATTR_MNC, config.mnc); 1755 } 1756 if (config.locale != null) { 1757 XmlUtils.writeStringAttribute(xml, XML_ATTR_LOCALE, config.locale.toLanguageTag()); 1758 } 1759 if (config.touchscreen != TOUCHSCREEN_UNDEFINED) { 1760 XmlUtils.writeIntAttribute(xml, XML_ATTR_TOUCHSCREEN, config.touchscreen); 1761 } 1762 if (config.keyboard != KEYBOARD_UNDEFINED) { 1763 XmlUtils.writeIntAttribute(xml, XML_ATTR_KEYBOARD, config.keyboard); 1764 } 1765 if (config.keyboardHidden != KEYBOARDHIDDEN_UNDEFINED) { 1766 XmlUtils.writeIntAttribute(xml, XML_ATTR_KEYBOARD_HIDDEN, config.keyboardHidden); 1767 } 1768 if (config.hardKeyboardHidden != HARDKEYBOARDHIDDEN_UNDEFINED) { 1769 XmlUtils.writeIntAttribute(xml, XML_ATTR_HARD_KEYBOARD_HIDDEN, 1770 config.hardKeyboardHidden); 1771 } 1772 if (config.navigation != NAVIGATION_UNDEFINED) { 1773 XmlUtils.writeIntAttribute(xml, XML_ATTR_NAVIGATION, config.navigation); 1774 } 1775 if (config.navigationHidden != NAVIGATIONHIDDEN_UNDEFINED) { 1776 XmlUtils.writeIntAttribute(xml, XML_ATTR_NAVIGATION_HIDDEN, config.navigationHidden); 1777 } 1778 if (config.orientation != ORIENTATION_UNDEFINED) { 1779 XmlUtils.writeIntAttribute(xml, XML_ATTR_ORIENTATION, config.orientation); 1780 } 1781 if (config.screenLayout != SCREENLAYOUT_UNDEFINED) { 1782 XmlUtils.writeIntAttribute(xml, XML_ATTR_SCREEN_LAYOUT, config.screenLayout); 1783 } 1784 if (config.uiMode != 0) { 1785 XmlUtils.writeIntAttribute(xml, XML_ATTR_UI_MODE, config.uiMode); 1786 } 1787 if (config.screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED) { 1788 XmlUtils.writeIntAttribute(xml, XML_ATTR_SCREEN_WIDTH, config.screenWidthDp); 1789 } 1790 if (config.screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED) { 1791 XmlUtils.writeIntAttribute(xml, XML_ATTR_SCREEN_HEIGHT, config.screenHeightDp); 1792 } 1793 if (config.smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED) { 1794 XmlUtils.writeIntAttribute(xml, XML_ATTR_SMALLEST_WIDTH, config.smallestScreenWidthDp); 1795 } 1796 if (config.densityDpi != DENSITY_DPI_UNDEFINED) { 1797 XmlUtils.writeIntAttribute(xml, XML_ATTR_DENSITY, config.densityDpi); 1798 } 1799 } 1800} 1801