Build.java revision da8c037c8b3b36d2edc42595cbf3a18d345c1489
1/* 2 * Copyright (C) 2007 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.os; 18 19import com.android.internal.telephony.TelephonyProperties; 20 21/** 22 * Information about the current build, extracted from system properties. 23 */ 24public class Build { 25 /** Value used for when a build property is unknown. */ 26 public static final String UNKNOWN = "unknown"; 27 28 /** Either a changelist number, or a label like "M4-rc20". */ 29 public static final String ID = getString("ro.build.id"); 30 31 /** A build ID string meant for displaying to the user */ 32 public static final String DISPLAY = getString("ro.build.display.id"); 33 34 /** The name of the overall product. */ 35 public static final String PRODUCT = getString("ro.product.name"); 36 37 /** The name of the industrial design. */ 38 public static final String DEVICE = getString("ro.product.device"); 39 40 /** The name of the underlying board, like "goldfish". */ 41 public static final String BOARD = getString("ro.product.board"); 42 43 /** The name of the instruction set (CPU type + ABI convention) of native code. */ 44 public static final String CPU_ABI = getString("ro.product.cpu.abi"); 45 46 /** The name of the second instruction set (CPU type + ABI convention) of native code. */ 47 public static final String CPU_ABI2 = getString("ro.product.cpu.abi2"); 48 49 /** The manufacturer of the product/hardware. */ 50 public static final String MANUFACTURER = getString("ro.product.manufacturer"); 51 52 /** The brand (e.g., carrier) the software is customized for, if any. */ 53 public static final String BRAND = getString("ro.product.brand"); 54 55 /** The end-user-visible name for the end product. */ 56 public static final String MODEL = getString("ro.product.model"); 57 58 /** The system bootloader version number. */ 59 public static final String BOOTLOADER = getString("ro.bootloader"); 60 61 /** 62 * The radio firmware version number. 63 * 64 * @deprecated The radio firmware version is frequently not 65 * available when this class is initialized, leading to a blank or 66 * "unknown" value for this string. Use 67 * {@link #getRadioVersion} instead. 68 */ 69 @Deprecated 70 public static final String RADIO = getString(TelephonyProperties.PROPERTY_BASEBAND_VERSION); 71 72 /** The name of the hardware (from the kernel command line or /proc). */ 73 public static final String HARDWARE = getString("ro.hardware"); 74 75 /** A hardware serial number, if available. Alphanumeric only, case-insensitive. */ 76 public static final String SERIAL = getString("ro.serialno"); 77 78 /** 79 * An ordered list of ABIs supported by this device. The most preferred ABI is the first 80 * element in the list. 81 * 82 * See {@link #SUPPORTED_32_BIT_ABIS} and {@link #SUPPORTED_64_BIT_ABIS}. 83 * 84 * @hide 85 */ 86 public static final String[] SUPPORTED_ABIS = SystemProperties.get("ro.product.cpu.abilist") 87 .split(","); 88 89 /** 90 * An ordered list of <b>32 bit</b> ABIs supported by this device. The most preferred ABI 91 * is the first element in the list. 92 * 93 * See {@link #SUPPORTED_ABIS} and {@link #SUPPORTED_64_BIT_ABIS}. 94 * 95 * @hide 96 */ 97 public static final String[] SUPPORTED_32_BIT_ABIS = 98 SystemProperties.get("ro.product.cpu.abilist32").split(","); 99 100 /** 101 * An ordered list of <b>64 bit</b> ABIs supported by this device. The most preferred ABI 102 * is the first element in the list. 103 * 104 * See {@link #SUPPORTED_ABIS} and {@link #SUPPORTED_32_BIT_ABIS}. 105 * 106 * @hide 107 */ 108 public static final String[] SUPPORTED_64_BIT_ABIS = 109 SystemProperties.get("ro.product.cpu.abilist64").split(","); 110 111 112 /** Various version strings. */ 113 public static class VERSION { 114 /** 115 * The internal value used by the underlying source control to 116 * represent this build. E.g., a perforce changelist number 117 * or a git hash. 118 */ 119 public static final String INCREMENTAL = getString("ro.build.version.incremental"); 120 121 /** 122 * The user-visible version string. E.g., "1.0" or "3.4b5". 123 */ 124 public static final String RELEASE = getString("ro.build.version.release"); 125 126 /** 127 * The user-visible SDK version of the framework in its raw String 128 * representation; use {@link #SDK_INT} instead. 129 * 130 * @deprecated Use {@link #SDK_INT} to easily get this as an integer. 131 */ 132 @Deprecated 133 public static final String SDK = getString("ro.build.version.sdk"); 134 135 /** 136 * The user-visible SDK version of the framework; its possible 137 * values are defined in {@link Build.VERSION_CODES}. 138 */ 139 public static final int SDK_INT = SystemProperties.getInt( 140 "ro.build.version.sdk", 0); 141 142 /** 143 * The current development codename, or the string "REL" if this is 144 * a release build. 145 */ 146 public static final String CODENAME = getString("ro.build.version.codename"); 147 148 /** 149 * The SDK version to use when accessing resources. 150 * Use the current SDK version code. If we are a development build, 151 * also allow the previous SDK version + 1. 152 * @hide 153 */ 154 public static final int RESOURCES_SDK_INT = SDK_INT 155 + ("REL".equals(CODENAME) ? 0 : 1); 156 } 157 158 /** 159 * Enumeration of the currently known SDK version codes. These are the 160 * values that can be found in {@link VERSION#SDK}. Version numbers 161 * increment monotonically with each official platform release. 162 */ 163 public static class VERSION_CODES { 164 /** 165 * Magic version number for a current development build, which has 166 * not yet turned into an official release. 167 */ 168 public static final int CUR_DEVELOPMENT = 10000; 169 170 /** 171 * October 2008: The original, first, version of Android. Yay! 172 */ 173 public static final int BASE = 1; 174 175 /** 176 * February 2009: First Android update, officially called 1.1. 177 */ 178 public static final int BASE_1_1 = 2; 179 180 /** 181 * May 2009: Android 1.5. 182 */ 183 public static final int CUPCAKE = 3; 184 185 /** 186 * September 2009: Android 1.6. 187 * 188 * <p>Applications targeting this or a later release will get these 189 * new changes in behavior:</p> 190 * <ul> 191 * <li> They must explicitly request the 192 * {@link android.Manifest.permission#WRITE_EXTERNAL_STORAGE} permission to be 193 * able to modify the contents of the SD card. (Apps targeting 194 * earlier versions will always request the permission.) 195 * <li> They must explicitly request the 196 * {@link android.Manifest.permission#READ_PHONE_STATE} permission to be 197 * able to be able to retrieve phone state info. (Apps targeting 198 * earlier versions will always request the permission.) 199 * <li> They are assumed to support different screen densities and 200 * sizes. (Apps targeting earlier versions are assumed to only support 201 * medium density normal size screens unless otherwise indicated). 202 * They can still explicitly specify screen support either way with the 203 * supports-screens manifest tag. 204 * <li> {@link android.widget.TabHost} will use the new dark tab 205 * background design. 206 * </ul> 207 */ 208 public static final int DONUT = 4; 209 210 /** 211 * November 2009: Android 2.0 212 * 213 * <p>Applications targeting this or a later release will get these 214 * new changes in behavior:</p> 215 * <ul> 216 * <li> The {@link android.app.Service#onStartCommand 217 * Service.onStartCommand} function will return the new 218 * {@link android.app.Service#START_STICKY} behavior instead of the 219 * old compatibility {@link android.app.Service#START_STICKY_COMPATIBILITY}. 220 * <li> The {@link android.app.Activity} class will now execute back 221 * key presses on the key up instead of key down, to be able to detect 222 * canceled presses from virtual keys. 223 * <li> The {@link android.widget.TabWidget} class will use a new color scheme 224 * for tabs. In the new scheme, the foreground tab has a medium gray background 225 * the background tabs have a dark gray background. 226 * </ul> 227 */ 228 public static final int ECLAIR = 5; 229 230 /** 231 * December 2009: Android 2.0.1 232 */ 233 public static final int ECLAIR_0_1 = 6; 234 235 /** 236 * January 2010: Android 2.1 237 */ 238 public static final int ECLAIR_MR1 = 7; 239 240 /** 241 * June 2010: Android 2.2 242 */ 243 public static final int FROYO = 8; 244 245 /** 246 * November 2010: Android 2.3 247 * 248 * <p>Applications targeting this or a later release will get these 249 * new changes in behavior:</p> 250 * <ul> 251 * <li> The application's notification icons will be shown on the new 252 * dark status bar background, so must be visible in this situation. 253 * </ul> 254 */ 255 public static final int GINGERBREAD = 9; 256 257 /** 258 * February 2011: Android 2.3.3. 259 */ 260 public static final int GINGERBREAD_MR1 = 10; 261 262 /** 263 * February 2011: Android 3.0. 264 * 265 * <p>Applications targeting this or a later release will get these 266 * new changes in behavior:</p> 267 * <ul> 268 * <li> The default theme for applications is now dark holographic: 269 * {@link android.R.style#Theme_Holo}. 270 * <li> On large screen devices that do not have a physical menu 271 * button, the soft (compatibility) menu is disabled. 272 * <li> The activity lifecycle has changed slightly as per 273 * {@link android.app.Activity}. 274 * <li> An application will crash if it does not call through 275 * to the super implementation of its 276 * {@link android.app.Activity#onPause Activity.onPause()} method. 277 * <li> When an application requires a permission to access one of 278 * its components (activity, receiver, service, provider), this 279 * permission is no longer enforced when the application wants to 280 * access its own component. This means it can require a permission 281 * on a component that it does not itself hold and still access that 282 * component. 283 * <li> {@link android.content.Context#getSharedPreferences 284 * Context.getSharedPreferences()} will not automatically reload 285 * the preferences if they have changed on storage, unless 286 * {@link android.content.Context#MODE_MULTI_PROCESS} is used. 287 * <li> {@link android.view.ViewGroup#setMotionEventSplittingEnabled} 288 * will default to true. 289 * <li> {@link android.view.WindowManager.LayoutParams#FLAG_SPLIT_TOUCH} 290 * is enabled by default on windows. 291 * <li> {@link android.widget.PopupWindow#isSplitTouchEnabled() 292 * PopupWindow.isSplitTouchEnabled()} will return true by default. 293 * <li> {@link android.widget.GridView} and {@link android.widget.ListView} 294 * will use {@link android.view.View#setActivated View.setActivated} 295 * for selected items if they do not implement {@link android.widget.Checkable}. 296 * <li> {@link android.widget.Scroller} will be constructed with 297 * "flywheel" behavior enabled by default. 298 * </ul> 299 */ 300 public static final int HONEYCOMB = 11; 301 302 /** 303 * May 2011: Android 3.1. 304 */ 305 public static final int HONEYCOMB_MR1 = 12; 306 307 /** 308 * June 2011: Android 3.2. 309 * 310 * <p>Update to Honeycomb MR1 to support 7 inch tablets, improve 311 * screen compatibility mode, etc.</p> 312 * 313 * <p>As of this version, applications that don't say whether they 314 * support XLARGE screens will be assumed to do so only if they target 315 * {@link #HONEYCOMB} or later; it had been {@link #GINGERBREAD} or 316 * later. Applications that don't support a screen size at least as 317 * large as the current screen will provide the user with a UI to 318 * switch them in to screen size compatibility mode.</p> 319 * 320 * <p>This version introduces new screen size resource qualifiers 321 * based on the screen size in dp: see 322 * {@link android.content.res.Configuration#screenWidthDp}, 323 * {@link android.content.res.Configuration#screenHeightDp}, and 324 * {@link android.content.res.Configuration#smallestScreenWidthDp}. 325 * Supplying these in <supports-screens> as per 326 * {@link android.content.pm.ApplicationInfo#requiresSmallestWidthDp}, 327 * {@link android.content.pm.ApplicationInfo#compatibleWidthLimitDp}, and 328 * {@link android.content.pm.ApplicationInfo#largestWidthLimitDp} is 329 * preferred over the older screen size buckets and for older devices 330 * the appropriate buckets will be inferred from them.</p> 331 * 332 * <p>Applications targeting this or a later release will get these 333 * new changes in behavior:</p> 334 * <ul> 335 * <li><p>New {@link android.content.pm.PackageManager#FEATURE_SCREEN_PORTRAIT} 336 * and {@link android.content.pm.PackageManager#FEATURE_SCREEN_LANDSCAPE} 337 * features were introduced in this release. Applications that target 338 * previous platform versions are assumed to require both portrait and 339 * landscape support in the device; when targeting Honeycomb MR1 or 340 * greater the application is responsible for specifying any specific 341 * orientation it requires.</p> 342 * <li><p>{@link android.os.AsyncTask} will use the serial executor 343 * by default when calling {@link android.os.AsyncTask#execute}.</p> 344 * <li><p>{@link android.content.pm.ActivityInfo#configChanges 345 * ActivityInfo.configChanges} will have the 346 * {@link android.content.pm.ActivityInfo#CONFIG_SCREEN_SIZE} and 347 * {@link android.content.pm.ActivityInfo#CONFIG_SMALLEST_SCREEN_SIZE} 348 * bits set; these need to be cleared for older applications because 349 * some developers have done absolute comparisons against this value 350 * instead of correctly masking the bits they are interested in. 351 * </ul> 352 */ 353 public static final int HONEYCOMB_MR2 = 13; 354 355 /** 356 * October 2011: Android 4.0. 357 * 358 * <p>Applications targeting this or a later release will get these 359 * new changes in behavior:</p> 360 * <ul> 361 * <li> For devices without a dedicated menu key, the software compatibility 362 * menu key will not be shown even on phones. By targeting Ice Cream Sandwich 363 * or later, your UI must always have its own menu UI affordance if needed, 364 * on both tablets and phones. The ActionBar will take care of this for you. 365 * <li> 2d drawing hardware acceleration is now turned on by default. 366 * You can use 367 * {@link android.R.attr#hardwareAccelerated android:hardwareAccelerated} 368 * to turn it off if needed, although this is strongly discouraged since 369 * it will result in poor performance on larger screen devices. 370 * <li> The default theme for applications is now the "device default" theme: 371 * {@link android.R.style#Theme_DeviceDefault}. This may be the 372 * holo dark theme or a different dark theme defined by the specific device. 373 * The {@link android.R.style#Theme_Holo} family must not be modified 374 * for a device to be considered compatible. Applications that explicitly 375 * request a theme from the Holo family will be guaranteed that these themes 376 * will not change character within the same platform version. Applications 377 * that wish to blend in with the device should use a theme from the 378 * {@link android.R.style#Theme_DeviceDefault} family. 379 * <li> Managed cursors can now throw an exception if you directly close 380 * the cursor yourself without stopping the management of it; previously failures 381 * would be silently ignored. 382 * <li> The fadingEdge attribute on views will be ignored (fading edges is no 383 * longer a standard part of the UI). A new requiresFadingEdge attribute allows 384 * applications to still force fading edges on for special cases. 385 * <li> {@link android.content.Context#bindService Context.bindService()} 386 * will not automatically add in {@link android.content.Context#BIND_WAIVE_PRIORITY}. 387 * <li> App Widgets will have standard padding automatically added around 388 * them, rather than relying on the padding being baked into the widget itself. 389 * <li> An exception will be thrown if you try to change the type of a 390 * window after it has been added to the window manager. Previously this 391 * would result in random incorrect behavior. 392 * <li> {@link android.view.animation.AnimationSet} will parse out 393 * the duration, fillBefore, fillAfter, repeatMode, and startOffset 394 * XML attributes that are defined. 395 * <li> {@link android.app.ActionBar#setHomeButtonEnabled 396 * ActionBar.setHomeButtonEnabled()} is false by default. 397 * </ul> 398 */ 399 public static final int ICE_CREAM_SANDWICH = 14; 400 401 /** 402 * December 2011: Android 4.0.3. 403 */ 404 public static final int ICE_CREAM_SANDWICH_MR1 = 15; 405 406 /** 407 * June 2012: Android 4.1. 408 * 409 * <p>Applications targeting this or a later release will get these 410 * new changes in behavior:</p> 411 * <ul> 412 * <li> You must explicitly request the {@link android.Manifest.permission#READ_CALL_LOG} 413 * and/or {@link android.Manifest.permission#WRITE_CALL_LOG} permissions; 414 * access to the call log is no longer implicitly provided through 415 * {@link android.Manifest.permission#READ_CONTACTS} and 416 * {@link android.Manifest.permission#WRITE_CONTACTS}. 417 * <li> {@link android.widget.RemoteViews} will throw an exception if 418 * setting an onClick handler for views being generated by a 419 * {@link android.widget.RemoteViewsService} for a collection container; 420 * previously this just resulted in a warning log message. 421 * <li> New {@link android.app.ActionBar} policy for embedded tabs: 422 * embedded tabs are now always stacked in the action bar when in portrait 423 * mode, regardless of the size of the screen. 424 * <li> {@link android.webkit.WebSettings#setAllowFileAccessFromFileURLs(boolean) 425 * WebSettings.setAllowFileAccessFromFileURLs} and 426 * {@link android.webkit.WebSettings#setAllowUniversalAccessFromFileURLs(boolean) 427 * WebSettings.setAllowUniversalAccessFromFileURLs} default to false. 428 * <li> Calls to {@link android.content.pm.PackageManager#setComponentEnabledSetting 429 * PackageManager.setComponentEnabledSetting} will now throw an 430 * IllegalArgumentException if the given component class name does not 431 * exist in the application's manifest. 432 * <li> {@link android.nfc.NfcAdapter#setNdefPushMessage 433 * NfcAdapter.setNdefPushMessage}, 434 * {@link android.nfc.NfcAdapter#setNdefPushMessageCallback 435 * NfcAdapter.setNdefPushMessageCallback} and 436 * {@link android.nfc.NfcAdapter#setOnNdefPushCompleteCallback 437 * NfcAdapter.setOnNdefPushCompleteCallback} will throw 438 * IllegalStateException if called after the Activity has been destroyed. 439 * <li> Accessibility services must require the new 440 * {@link android.Manifest.permission#BIND_ACCESSIBILITY_SERVICE} permission or 441 * they will not be available for use. 442 * <li> {@link android.accessibilityservice.AccessibilityServiceInfo#FLAG_INCLUDE_NOT_IMPORTANT_VIEWS 443 * AccessibilityServiceInfo.FLAG_INCLUDE_NOT_IMPORTANT_VIEWS} must be set 444 * for unimportant views to be included in queries. 445 * </ul> 446 */ 447 public static final int JELLY_BEAN = 16; 448 449 /** 450 * Android 4.2: Moar jelly beans! 451 * 452 * <p>Applications targeting this or a later release will get these 453 * new changes in behavior:</p> 454 * <ul> 455 * <li>Content Providers: The default value of {@code android:exported} is now 456 * {@code false}. See 457 * <a href="{@docRoot}guide/topics/manifest/provider-element.html#exported"> 458 * the android:exported section</a> in the provider documentation for more details.</li> 459 * <li>{@link android.view.View#getLayoutDirection() View.getLayoutDirection()} 460 * can return different values than {@link android.view.View#LAYOUT_DIRECTION_LTR} 461 * based on the locale etc. 462 * <li> {@link android.webkit.WebView#addJavascriptInterface(Object, String) 463 * WebView.addJavascriptInterface} requires explicit annotations on methods 464 * for them to be accessible from Javascript. 465 * </ul> 466 */ 467 public static final int JELLY_BEAN_MR1 = 17; 468 469 /** 470 * Android 4.3: Jelly Bean MR2, the revenge of the beans. 471 */ 472 public static final int JELLY_BEAN_MR2 = 18; 473 474 /** 475 * Android 4.4: KitKat, another tasty treat. 476 * 477 * <p>Applications targeting this or a later release will get these 478 * new changes in behavior:</p> 479 * <ul> 480 * <li> The default result of {android.preference.PreferenceActivity#isValidFragment 481 * PreferenceActivity.isValueFragment} becomes false instead of true.</li> 482 * <li> In {@link android.webkit.WebView}, apps targeting earlier versions will have 483 * JS URLs evaluated directly and any result of the evaluation will not replace 484 * the current page content. Apps targetting KITKAT or later that load a JS URL will 485 * have the result of that URL replace the content of the current page</li> 486 * <li> {@link android.app.AlarmManager#set AlarmManager.set} becomes interpreted as 487 * an inexact value, to give the system more flexibility in scheduling alarms.</li> 488 * <li> {@link android.content.Context#getSharedPreferences(String, int) 489 * Context.getSharedPreferences} no longer allows a null name.</li> 490 * <li> {@link android.widget.RelativeLayout} changes to compute wrapped content 491 * margins correctly.</li> 492 * <li> {@link android.app.ActionBar}'s window content overlay is allowed to be 493 * drawn.</li> 494 * <li>The {@link android.Manifest.permission#READ_EXTERNAL_STORAGE} 495 * permission is now always enforced.</li> 496 * <li>Access to package-specific external storage directories belonging 497 * to the calling app no longer requires the 498 * {@link android.Manifest.permission#READ_EXTERNAL_STORAGE} or 499 * {@link android.Manifest.permission#WRITE_EXTERNAL_STORAGE} 500 * permissions.</li> 501 * </ul> 502 */ 503 public static final int KITKAT = 19; 504 } 505 506 /** The type of build, like "user" or "eng". */ 507 public static final String TYPE = getString("ro.build.type"); 508 509 /** Comma-separated tags describing the build, like "unsigned,debug". */ 510 public static final String TAGS = getString("ro.build.tags"); 511 512 /** A string that uniquely identifies this build. Do not attempt to parse this value. */ 513 public static final String FINGERPRINT = getString("ro.build.fingerprint"); 514 515 // The following properties only make sense for internal engineering builds. 516 public static final long TIME = getLong("ro.build.date.utc") * 1000; 517 public static final String USER = getString("ro.build.user"); 518 public static final String HOST = getString("ro.build.host"); 519 520 /** 521 * Returns true if we are running a debug build such as "user-debug" or "eng". 522 * @hide 523 */ 524 public static final boolean IS_DEBUGGABLE = 525 SystemProperties.getInt("ro.debuggable", 0) == 1; 526 527 /** 528 * Returns the version string for the radio firmware. May return 529 * null (if, for instance, the radio is not currently on). 530 */ 531 public static String getRadioVersion() { 532 return SystemProperties.get(TelephonyProperties.PROPERTY_BASEBAND_VERSION, null); 533 } 534 535 private static String getString(String property) { 536 return SystemProperties.get(property, UNKNOWN); 537 } 538 539 private static long getLong(String property) { 540 try { 541 return Long.parseLong(SystemProperties.get(property)); 542 } catch (NumberFormatException e) { 543 return -1; 544 } 545 } 546} 547