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 17 package android.content.res; 18 19 import android.content.pm.ActivityInfo; 20 import android.os.Parcel; 21 import android.os.Parcelable; 22 23 import 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 dynamic device configuration (various types of input devices). 30 */ 31 public final class Configuration implements Parcelable, Comparable<Configuration> { 32 /** 33 * Current user preference for the scaling factor for fonts, relative 34 * to the base density scaling. 35 */ 36 public float fontScale; 37 38 /** 39 * IMSI MCC (Mobile Country Code). 0 if undefined. 40 */ 41 public int mcc; 42 43 /** 44 * IMSI MNC (Mobile Network Code). 0 if undefined. 45 */ 46 public int mnc; 47 48 /** 49 * Current user preference for the locale. 50 */ 51 public Locale locale; 52 53 /** 54 * Locale should persist on setting. This is hidden because it is really 55 * questionable whether this is the right way to expose the functionality. 56 * @hide 57 */ 58 public boolean userSetLocale; 59 60 public static final int SCREENLAYOUT_SIZE_MASK = 0x0f; 61 public static final int SCREENLAYOUT_SIZE_UNDEFINED = 0x00; 62 public static final int SCREENLAYOUT_SIZE_SMALL = 0x01; 63 public static final int SCREENLAYOUT_SIZE_NORMAL = 0x02; 64 public static final int SCREENLAYOUT_SIZE_LARGE = 0x03; 65 public static final int SCREENLAYOUT_SIZE_XLARGE = 0x04; 66 67 public static final int SCREENLAYOUT_LONG_MASK = 0x30; 68 public static final int SCREENLAYOUT_LONG_UNDEFINED = 0x00; 69 public static final int SCREENLAYOUT_LONG_NO = 0x10; 70 public static final int SCREENLAYOUT_LONG_YES = 0x20; 71 72 /** 73 * Special flag we generate to indicate that the screen layout requires 74 * us to use a compatibility mode for apps that are not modern layout 75 * aware. 76 * @hide 77 */ 78 public static final int SCREENLAYOUT_COMPAT_NEEDED = 0x10000000; 79 80 /** 81 * Bit mask of overall layout of the screen. Currently there are two 82 * fields: 83 * <p>The {@link #SCREENLAYOUT_SIZE_MASK} bits define the overall size 84 * of the screen. They may be one of 85 * {@link #SCREENLAYOUT_SIZE_SMALL}, {@link #SCREENLAYOUT_SIZE_NORMAL}, 86 * {@link #SCREENLAYOUT_SIZE_LARGE}. 87 * 88 * <p>The {@link #SCREENLAYOUT_LONG_MASK} defines whether the screen 89 * is wider/taller than normal. They may be one of 90 * {@link #SCREENLAYOUT_LONG_NO} or {@link #SCREENLAYOUT_LONG_YES}. 91 */ 92 public int screenLayout; 93 94 public static final int TOUCHSCREEN_UNDEFINED = 0; 95 public static final int TOUCHSCREEN_NOTOUCH = 1; 96 public static final int TOUCHSCREEN_STYLUS = 2; 97 public static final int TOUCHSCREEN_FINGER = 3; 98 99 /** 100 * The kind of touch screen attached to the device. 101 * One of: {@link #TOUCHSCREEN_NOTOUCH}, {@link #TOUCHSCREEN_STYLUS}, 102 * {@link #TOUCHSCREEN_FINGER}. 103 */ 104 public int touchscreen; 105 106 public static final int KEYBOARD_UNDEFINED = 0; 107 public static final int KEYBOARD_NOKEYS = 1; 108 public static final int KEYBOARD_QWERTY = 2; 109 public static final int KEYBOARD_12KEY = 3; 110 111 /** 112 * The kind of keyboard attached to the device. 113 * One of: {@link #KEYBOARD_NOKEYS}, {@link #KEYBOARD_QWERTY}, 114 * {@link #KEYBOARD_12KEY}. 115 */ 116 public int keyboard; 117 118 public static final int KEYBOARDHIDDEN_UNDEFINED = 0; 119 public static final int KEYBOARDHIDDEN_NO = 1; 120 public static final int KEYBOARDHIDDEN_YES = 2; 121 /** Constant matching actual resource implementation. {@hide} */ 122 public static final int KEYBOARDHIDDEN_SOFT = 3; 123 124 /** 125 * A flag indicating whether any keyboard is available. Unlike 126 * {@link #hardKeyboardHidden}, this also takes into account a soft 127 * keyboard, so if the hard keyboard is hidden but there is soft 128 * keyboard available, it will be set to NO. Value is one of: 129 * {@link #KEYBOARDHIDDEN_NO}, {@link #KEYBOARDHIDDEN_YES}. 130 */ 131 public int keyboardHidden; 132 133 public static final int HARDKEYBOARDHIDDEN_UNDEFINED = 0; 134 public static final int HARDKEYBOARDHIDDEN_NO = 1; 135 public static final int HARDKEYBOARDHIDDEN_YES = 2; 136 137 /** 138 * A flag indicating whether the hard keyboard has been hidden. This will 139 * be set on a device with a mechanism to hide the keyboard from the 140 * user, when that mechanism is closed. One of: 141 * {@link #HARDKEYBOARDHIDDEN_NO}, {@link #HARDKEYBOARDHIDDEN_YES}. 142 */ 143 public int hardKeyboardHidden; 144 145 public static final int NAVIGATION_UNDEFINED = 0; 146 public static final int NAVIGATION_NONAV = 1; 147 public static final int NAVIGATION_DPAD = 2; 148 public static final int NAVIGATION_TRACKBALL = 3; 149 public static final int NAVIGATION_WHEEL = 4; 150 151 /** 152 * The kind of navigation method available on the device. 153 * One of: {@link #NAVIGATION_NONAV}, {@link #NAVIGATION_DPAD}, 154 * {@link #NAVIGATION_TRACKBALL}, {@link #NAVIGATION_WHEEL}. 155 */ 156 public int navigation; 157 158 public static final int NAVIGATIONHIDDEN_UNDEFINED = 0; 159 public static final int NAVIGATIONHIDDEN_NO = 1; 160 public static final int NAVIGATIONHIDDEN_YES = 2; 161 162 /** 163 * A flag indicating whether any 5-way or DPAD navigation available. 164 * This will be set on a device with a mechanism to hide the navigation 165 * controls from the user, when that mechanism is closed. One of: 166 * {@link #NAVIGATIONHIDDEN_NO}, {@link #NAVIGATIONHIDDEN_YES}. 167 */ 168 public int navigationHidden; 169 170 public static final int ORIENTATION_UNDEFINED = 0; 171 public static final int ORIENTATION_PORTRAIT = 1; 172 public static final int ORIENTATION_LANDSCAPE = 2; 173 public static final int ORIENTATION_SQUARE = 3; 174 175 /** 176 * Overall orientation of the screen. May be one of 177 * {@link #ORIENTATION_LANDSCAPE}, {@link #ORIENTATION_PORTRAIT}, 178 * or {@link #ORIENTATION_SQUARE}. 179 */ 180 public int orientation; 181 182 public static final int UI_MODE_TYPE_MASK = 0x0f; 183 public static final int UI_MODE_TYPE_UNDEFINED = 0x00; 184 public static final int UI_MODE_TYPE_NORMAL = 0x01; 185 public static final int UI_MODE_TYPE_DESK = 0x02; 186 public static final int UI_MODE_TYPE_CAR = 0x03; 187 188 public static final int UI_MODE_NIGHT_MASK = 0x30; 189 public static final int UI_MODE_NIGHT_UNDEFINED = 0x00; 190 public static final int UI_MODE_NIGHT_NO = 0x10; 191 public static final int UI_MODE_NIGHT_YES = 0x20; 192 193 /** 194 * Bit mask of the ui mode. Currently there are two fields: 195 * <p>The {@link #UI_MODE_TYPE_MASK} bits define the overall ui mode of the 196 * device. They may be one of {@link #UI_MODE_TYPE_UNDEFINED}, 197 * {@link #UI_MODE_TYPE_NORMAL}, {@link #UI_MODE_TYPE_DESK}, 198 * or {@link #UI_MODE_TYPE_CAR}. 199 * 200 * <p>The {@link #UI_MODE_NIGHT_MASK} defines whether the screen 201 * is in a special mode. They may be one of {@link #UI_MODE_NIGHT_UNDEFINED}, 202 * {@link #UI_MODE_NIGHT_NO} or {@link #UI_MODE_NIGHT_YES}. 203 */ 204 public int uiMode; 205 206 /** 207 * @hide Internal book-keeping. 208 */ 209 public int seq; 210 211 /** 212 * Construct an invalid Configuration. You must call {@link #setToDefaults} 213 * for this object to be valid. {@more} 214 */ 215 public Configuration() { 216 setToDefaults(); 217 } 218 219 /** 220 * Makes a deep copy suitable for modification. 221 */ 222 public Configuration(Configuration o) { 223 setTo(o); 224 } 225 226 public void setTo(Configuration o) { 227 fontScale = o.fontScale; 228 mcc = o.mcc; 229 mnc = o.mnc; 230 if (o.locale != null) { 231 locale = (Locale) o.locale.clone(); 232 } 233 userSetLocale = o.userSetLocale; 234 touchscreen = o.touchscreen; 235 keyboard = o.keyboard; 236 keyboardHidden = o.keyboardHidden; 237 hardKeyboardHidden = o.hardKeyboardHidden; 238 navigation = o.navigation; 239 navigationHidden = o.navigationHidden; 240 orientation = o.orientation; 241 screenLayout = o.screenLayout; 242 uiMode = o.uiMode; 243 seq = o.seq; 244 } 245 246 public String toString() { 247 StringBuilder sb = new StringBuilder(128); 248 sb.append("{ scale="); 249 sb.append(fontScale); 250 sb.append(" imsi="); 251 sb.append(mcc); 252 sb.append("/"); 253 sb.append(mnc); 254 sb.append(" loc="); 255 sb.append(locale); 256 sb.append(" touch="); 257 sb.append(touchscreen); 258 sb.append(" keys="); 259 sb.append(keyboard); 260 sb.append("/"); 261 sb.append(keyboardHidden); 262 sb.append("/"); 263 sb.append(hardKeyboardHidden); 264 sb.append(" nav="); 265 sb.append(navigation); 266 sb.append("/"); 267 sb.append(navigationHidden); 268 sb.append(" orien="); 269 sb.append(orientation); 270 sb.append(" layout="); 271 sb.append(screenLayout); 272 sb.append(" uiMode="); 273 sb.append(uiMode); 274 if (seq != 0) { 275 sb.append(" seq="); 276 sb.append(seq); 277 } 278 sb.append('}'); 279 return sb.toString(); 280 } 281 282 /** 283 * Set this object to the system defaults. 284 */ 285 public void setToDefaults() { 286 fontScale = 1; 287 mcc = mnc = 0; 288 locale = null; 289 userSetLocale = false; 290 touchscreen = TOUCHSCREEN_UNDEFINED; 291 keyboard = KEYBOARD_UNDEFINED; 292 keyboardHidden = KEYBOARDHIDDEN_UNDEFINED; 293 hardKeyboardHidden = HARDKEYBOARDHIDDEN_UNDEFINED; 294 navigation = NAVIGATION_UNDEFINED; 295 navigationHidden = NAVIGATIONHIDDEN_UNDEFINED; 296 orientation = ORIENTATION_UNDEFINED; 297 screenLayout = SCREENLAYOUT_SIZE_UNDEFINED; 298 uiMode = UI_MODE_TYPE_UNDEFINED; 299 seq = 0; 300 } 301 302 /** {@hide} */ 303 @Deprecated public void makeDefault() { 304 setToDefaults(); 305 } 306 307 /** 308 * Copy the fields from delta into this Configuration object, keeping 309 * track of which ones have changed. Any undefined fields in 310 * <var>delta</var> are ignored and not copied in to the current 311 * Configuration. 312 * @return Returns a bit mask of the changed fields, as per 313 * {@link #diff}. 314 */ 315 public int updateFrom(Configuration delta) { 316 int changed = 0; 317 if (delta.fontScale > 0 && fontScale != delta.fontScale) { 318 changed |= ActivityInfo.CONFIG_FONT_SCALE; 319 fontScale = delta.fontScale; 320 } 321 if (delta.mcc != 0 && mcc != delta.mcc) { 322 changed |= ActivityInfo.CONFIG_MCC; 323 mcc = delta.mcc; 324 } 325 if (delta.mnc != 0 && mnc != delta.mnc) { 326 changed |= ActivityInfo.CONFIG_MNC; 327 mnc = delta.mnc; 328 } 329 if (delta.locale != null 330 && (locale == null || !locale.equals(delta.locale))) { 331 changed |= ActivityInfo.CONFIG_LOCALE; 332 locale = delta.locale != null 333 ? (Locale) delta.locale.clone() : null; 334 } 335 if (delta.userSetLocale && (!userSetLocale || ((changed & ActivityInfo.CONFIG_LOCALE) != 0))) 336 { 337 userSetLocale = true; 338 changed |= ActivityInfo.CONFIG_LOCALE; 339 } 340 if (delta.touchscreen != TOUCHSCREEN_UNDEFINED 341 && touchscreen != delta.touchscreen) { 342 changed |= ActivityInfo.CONFIG_TOUCHSCREEN; 343 touchscreen = delta.touchscreen; 344 } 345 if (delta.keyboard != KEYBOARD_UNDEFINED 346 && keyboard != delta.keyboard) { 347 changed |= ActivityInfo.CONFIG_KEYBOARD; 348 keyboard = delta.keyboard; 349 } 350 if (delta.keyboardHidden != KEYBOARDHIDDEN_UNDEFINED 351 && keyboardHidden != delta.keyboardHidden) { 352 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 353 keyboardHidden = delta.keyboardHidden; 354 } 355 if (delta.hardKeyboardHidden != HARDKEYBOARDHIDDEN_UNDEFINED 356 && hardKeyboardHidden != delta.hardKeyboardHidden) { 357 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 358 hardKeyboardHidden = delta.hardKeyboardHidden; 359 } 360 if (delta.navigation != NAVIGATION_UNDEFINED 361 && navigation != delta.navigation) { 362 changed |= ActivityInfo.CONFIG_NAVIGATION; 363 navigation = delta.navigation; 364 } 365 if (delta.navigationHidden != NAVIGATIONHIDDEN_UNDEFINED 366 && navigationHidden != delta.navigationHidden) { 367 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 368 navigationHidden = delta.navigationHidden; 369 } 370 if (delta.orientation != ORIENTATION_UNDEFINED 371 && orientation != delta.orientation) { 372 changed |= ActivityInfo.CONFIG_ORIENTATION; 373 orientation = delta.orientation; 374 } 375 if (delta.screenLayout != SCREENLAYOUT_SIZE_UNDEFINED 376 && screenLayout != delta.screenLayout) { 377 changed |= ActivityInfo.CONFIG_SCREEN_LAYOUT; 378 screenLayout = delta.screenLayout; 379 } 380 if (delta.uiMode != (UI_MODE_TYPE_UNDEFINED|UI_MODE_NIGHT_UNDEFINED) 381 && uiMode != delta.uiMode) { 382 changed |= ActivityInfo.CONFIG_UI_MODE; 383 if ((delta.uiMode&UI_MODE_TYPE_MASK) != UI_MODE_TYPE_UNDEFINED) { 384 uiMode = (uiMode&~UI_MODE_TYPE_MASK) 385 | (delta.uiMode&UI_MODE_TYPE_MASK); 386 } 387 if ((delta.uiMode&UI_MODE_NIGHT_MASK) != UI_MODE_NIGHT_UNDEFINED) { 388 uiMode = (uiMode&~UI_MODE_NIGHT_MASK) 389 | (delta.uiMode&UI_MODE_NIGHT_MASK); 390 } 391 } 392 393 if (delta.seq != 0) { 394 seq = delta.seq; 395 } 396 397 return changed; 398 } 399 400 /** 401 * Return a bit mask of the differences between this Configuration 402 * object and the given one. Does not change the values of either. Any 403 * undefined fields in <var>delta</var> are ignored. 404 * @return Returns a bit mask indicating which configuration 405 * values has changed, containing any combination of 406 * {@link android.content.pm.ActivityInfo#CONFIG_FONT_SCALE 407 * PackageManager.ActivityInfo.CONFIG_FONT_SCALE}, 408 * {@link android.content.pm.ActivityInfo#CONFIG_MCC 409 * PackageManager.ActivityInfo.CONFIG_MCC}, 410 * {@link android.content.pm.ActivityInfo#CONFIG_MNC 411 * PackageManager.ActivityInfo.CONFIG_MNC}, 412 * {@link android.content.pm.ActivityInfo#CONFIG_LOCALE 413 * PackageManager.ActivityInfo.CONFIG_LOCALE}, 414 * {@link android.content.pm.ActivityInfo#CONFIG_TOUCHSCREEN 415 * PackageManager.ActivityInfo.CONFIG_TOUCHSCREEN}, 416 * {@link android.content.pm.ActivityInfo#CONFIG_KEYBOARD 417 * PackageManager.ActivityInfo.CONFIG_KEYBOARD}, 418 * {@link android.content.pm.ActivityInfo#CONFIG_NAVIGATION 419 * PackageManager.ActivityInfo.CONFIG_NAVIGATION}, 420 * {@link android.content.pm.ActivityInfo#CONFIG_ORIENTATION 421 * PackageManager.ActivityInfo.CONFIG_ORIENTATION}, or 422 * {@link android.content.pm.ActivityInfo#CONFIG_SCREEN_LAYOUT 423 * PackageManager.ActivityInfo.CONFIG_SCREEN_LAYOUT}. 424 */ 425 public int diff(Configuration delta) { 426 int changed = 0; 427 if (delta.fontScale > 0 && fontScale != delta.fontScale) { 428 changed |= ActivityInfo.CONFIG_FONT_SCALE; 429 } 430 if (delta.mcc != 0 && mcc != delta.mcc) { 431 changed |= ActivityInfo.CONFIG_MCC; 432 } 433 if (delta.mnc != 0 && mnc != delta.mnc) { 434 changed |= ActivityInfo.CONFIG_MNC; 435 } 436 if (delta.locale != null 437 && (locale == null || !locale.equals(delta.locale))) { 438 changed |= ActivityInfo.CONFIG_LOCALE; 439 } 440 if (delta.touchscreen != TOUCHSCREEN_UNDEFINED 441 && touchscreen != delta.touchscreen) { 442 changed |= ActivityInfo.CONFIG_TOUCHSCREEN; 443 } 444 if (delta.keyboard != KEYBOARD_UNDEFINED 445 && keyboard != delta.keyboard) { 446 changed |= ActivityInfo.CONFIG_KEYBOARD; 447 } 448 if (delta.keyboardHidden != KEYBOARDHIDDEN_UNDEFINED 449 && keyboardHidden != delta.keyboardHidden) { 450 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 451 } 452 if (delta.hardKeyboardHidden != HARDKEYBOARDHIDDEN_UNDEFINED 453 && hardKeyboardHidden != delta.hardKeyboardHidden) { 454 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 455 } 456 if (delta.navigation != NAVIGATION_UNDEFINED 457 && navigation != delta.navigation) { 458 changed |= ActivityInfo.CONFIG_NAVIGATION; 459 } 460 if (delta.navigationHidden != NAVIGATIONHIDDEN_UNDEFINED 461 && navigationHidden != delta.navigationHidden) { 462 changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN; 463 } 464 if (delta.orientation != ORIENTATION_UNDEFINED 465 && orientation != delta.orientation) { 466 changed |= ActivityInfo.CONFIG_ORIENTATION; 467 } 468 if (delta.screenLayout != SCREENLAYOUT_SIZE_UNDEFINED 469 && screenLayout != delta.screenLayout) { 470 changed |= ActivityInfo.CONFIG_SCREEN_LAYOUT; 471 } 472 if (delta.uiMode != (UI_MODE_TYPE_UNDEFINED|UI_MODE_NIGHT_UNDEFINED) 473 && uiMode != delta.uiMode) { 474 changed |= ActivityInfo.CONFIG_UI_MODE; 475 } 476 477 return changed; 478 } 479 480 /** 481 * Determine if a new resource needs to be loaded from the bit set of 482 * configuration changes returned by {@link #updateFrom(Configuration)}. 483 * 484 * @param configChanges The mask of changes configurations as returned by 485 * {@link #updateFrom(Configuration)}. 486 * @param interestingChanges The configuration changes that the resource 487 * can handled, as given in {@link android.util.TypedValue#changingConfigurations}. 488 * 489 * @return Return true if the resource needs to be loaded, else false. 490 */ 491 public static boolean needNewResources(int configChanges, int interestingChanges) { 492 return (configChanges & (interestingChanges|ActivityInfo.CONFIG_FONT_SCALE)) != 0; 493 } 494 495 /** 496 * @hide Return true if the sequence of 'other' is better than this. Assumes 497 * that 'this' is your current sequence and 'other' is a new one you have 498 * received some how and want to compare with what you have. 499 */ 500 public boolean isOtherSeqNewer(Configuration other) { 501 if (other == null) { 502 // Sanity check. 503 return false; 504 } 505 if (other.seq == 0) { 506 // If the other sequence is not specified, then we must assume 507 // it is newer since we don't know any better. 508 return true; 509 } 510 if (seq == 0) { 511 // If this sequence is not specified, then we also consider the 512 // other is better. Yes we have a preference for other. Sue us. 513 return true; 514 } 515 int diff = other.seq - seq; 516 if (diff > 0x10000) { 517 // If there has been a sufficiently large jump, assume the 518 // sequence has wrapped around. 519 return false; 520 } 521 return diff > 0; 522 } 523 524 /** 525 * Parcelable methods 526 */ 527 public int describeContents() { 528 return 0; 529 } 530 531 public void writeToParcel(Parcel dest, int flags) { 532 dest.writeFloat(fontScale); 533 dest.writeInt(mcc); 534 dest.writeInt(mnc); 535 if (locale == null) { 536 dest.writeInt(0); 537 } else { 538 dest.writeInt(1); 539 dest.writeString(locale.getLanguage()); 540 dest.writeString(locale.getCountry()); 541 dest.writeString(locale.getVariant()); 542 } 543 if(userSetLocale) { 544 dest.writeInt(1); 545 } else { 546 dest.writeInt(0); 547 } 548 dest.writeInt(touchscreen); 549 dest.writeInt(keyboard); 550 dest.writeInt(keyboardHidden); 551 dest.writeInt(hardKeyboardHidden); 552 dest.writeInt(navigation); 553 dest.writeInt(navigationHidden); 554 dest.writeInt(orientation); 555 dest.writeInt(screenLayout); 556 dest.writeInt(uiMode); 557 dest.writeInt(seq); 558 } 559 560 public void readFromParcel(Parcel source) { 561 fontScale = source.readFloat(); 562 mcc = source.readInt(); 563 mnc = source.readInt(); 564 if (source.readInt() != 0) { 565 locale = new Locale(source.readString(), source.readString(), 566 source.readString()); 567 } 568 userSetLocale = (source.readInt()==1); 569 touchscreen = source.readInt(); 570 keyboard = source.readInt(); 571 keyboardHidden = source.readInt(); 572 hardKeyboardHidden = source.readInt(); 573 navigation = source.readInt(); 574 navigationHidden = source.readInt(); 575 orientation = source.readInt(); 576 screenLayout = source.readInt(); 577 uiMode = source.readInt(); 578 seq = source.readInt(); 579 } 580 581 public static final Parcelable.Creator<Configuration> CREATOR 582 = new Parcelable.Creator<Configuration>() { 583 public Configuration createFromParcel(Parcel source) { 584 return new Configuration(source); 585 } 586 587 public Configuration[] newArray(int size) { 588 return new Configuration[size]; 589 } 590 }; 591 592 /** 593 * Construct this Configuration object, reading from the Parcel. 594 */ 595 private Configuration(Parcel source) { 596 readFromParcel(source); 597 } 598 599 public int compareTo(Configuration that) { 600 int n; 601 float a = this.fontScale; 602 float b = that.fontScale; 603 if (a < b) return -1; 604 if (a > b) return 1; 605 n = this.mcc - that.mcc; 606 if (n != 0) return n; 607 n = this.mnc - that.mnc; 608 if (n != 0) return n; 609 if (this.locale == null) { 610 if (that.locale != null) return 1; 611 } else if (that.locale == null) { 612 return -1; 613 } else { 614 n = this.locale.getLanguage().compareTo(that.locale.getLanguage()); 615 if (n != 0) return n; 616 n = this.locale.getCountry().compareTo(that.locale.getCountry()); 617 if (n != 0) return n; 618 n = this.locale.getVariant().compareTo(that.locale.getVariant()); 619 if (n != 0) return n; 620 } 621 n = this.touchscreen - that.touchscreen; 622 if (n != 0) return n; 623 n = this.keyboard - that.keyboard; 624 if (n != 0) return n; 625 n = this.keyboardHidden - that.keyboardHidden; 626 if (n != 0) return n; 627 n = this.hardKeyboardHidden - that.hardKeyboardHidden; 628 if (n != 0) return n; 629 n = this.navigation - that.navigation; 630 if (n != 0) return n; 631 n = this.navigationHidden - that.navigationHidden; 632 if (n != 0) return n; 633 n = this.orientation - that.orientation; 634 if (n != 0) return n; 635 n = this.screenLayout - that.screenLayout; 636 if (n != 0) return n; 637 n = this.uiMode - that.uiMode; 638 //if (n != 0) return n; 639 return n; 640 } 641 642 public boolean equals(Configuration that) { 643 if (that == null) return false; 644 if (that == this) return true; 645 return this.compareTo(that) == 0; 646 } 647 648 public boolean equals(Object that) { 649 try { 650 return equals((Configuration)that); 651 } catch (ClassCastException e) { 652 } 653 return false; 654 } 655 656 public int hashCode() { 657 return ((int)this.fontScale) + this.mcc + this.mnc 658 + (this.locale != null ? this.locale.hashCode() : 0) 659 + this.touchscreen 660 + this.keyboard + this.keyboardHidden + this.hardKeyboardHidden 661 + this.navigation + this.navigationHidden 662 + this.orientation + this.screenLayout + this.uiMode; 663 } 664 } 665
