| /* |
| * Copyright (C) 2007 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.os; |
| |
| import android.text.TextUtils; |
| import android.util.Slog; |
| |
| import com.android.internal.telephony.TelephonyProperties; |
| |
| import dalvik.system.VMRuntime; |
| |
| import java.util.Objects; |
| |
| /** |
| * Information about the current build, extracted from system properties. |
| */ |
| public class Build { |
| private static final String TAG = "Build"; |
| |
| /** Value used for when a build property is unknown. */ |
| public static final String UNKNOWN = "unknown"; |
| |
| /** Either a changelist number, or a label like "M4-rc20". */ |
| public static final String ID = getString("ro.build.id"); |
| |
| /** A build ID string meant for displaying to the user */ |
| public static final String DISPLAY = getString("ro.build.display.id"); |
| |
| /** The name of the overall product. */ |
| public static final String PRODUCT = getString("ro.product.name"); |
| |
| /** The name of the industrial design. */ |
| public static final String DEVICE = getString("ro.product.device"); |
| |
| /** The name of the underlying board, like "goldfish". */ |
| public static final String BOARD = getString("ro.product.board"); |
| |
| /** |
| * The name of the instruction set (CPU type + ABI convention) of native code. |
| * |
| * @deprecated Use {@link #SUPPORTED_ABIS} instead. |
| */ |
| @Deprecated |
| public static final String CPU_ABI; |
| |
| /** |
| * The name of the second instruction set (CPU type + ABI convention) of native code. |
| * |
| * @deprecated Use {@link #SUPPORTED_ABIS} instead. |
| */ |
| @Deprecated |
| public static final String CPU_ABI2; |
| |
| /** The manufacturer of the product/hardware. */ |
| public static final String MANUFACTURER = getString("ro.product.manufacturer"); |
| |
| /** The consumer-visible brand with which the product/hardware will be associated, if any. */ |
| public static final String BRAND = getString("ro.product.brand"); |
| |
| /** The end-user-visible name for the end product. */ |
| public static final String MODEL = getString("ro.product.model"); |
| |
| /** The system bootloader version number. */ |
| public static final String BOOTLOADER = getString("ro.bootloader"); |
| |
| /** |
| * The radio firmware version number. |
| * |
| * @deprecated The radio firmware version is frequently not |
| * available when this class is initialized, leading to a blank or |
| * "unknown" value for this string. Use |
| * {@link #getRadioVersion} instead. |
| */ |
| @Deprecated |
| public static final String RADIO = getString(TelephonyProperties.PROPERTY_BASEBAND_VERSION); |
| |
| /** The name of the hardware (from the kernel command line or /proc). */ |
| public static final String HARDWARE = getString("ro.hardware"); |
| |
| /** A hardware serial number, if available. Alphanumeric only, case-insensitive. */ |
| public static final String SERIAL = getString("ro.serialno"); |
| |
| /** |
| * An ordered list of ABIs supported by this device. The most preferred ABI is the first |
| * element in the list. |
| * |
| * See {@link #SUPPORTED_32_BIT_ABIS} and {@link #SUPPORTED_64_BIT_ABIS}. |
| */ |
| public static final String[] SUPPORTED_ABIS = getStringList("ro.product.cpu.abilist", ","); |
| |
| /** |
| * An ordered list of <b>32 bit</b> ABIs supported by this device. The most preferred ABI |
| * is the first element in the list. |
| * |
| * See {@link #SUPPORTED_ABIS} and {@link #SUPPORTED_64_BIT_ABIS}. |
| */ |
| public static final String[] SUPPORTED_32_BIT_ABIS = |
| getStringList("ro.product.cpu.abilist32", ","); |
| |
| /** |
| * An ordered list of <b>64 bit</b> ABIs supported by this device. The most preferred ABI |
| * is the first element in the list. |
| * |
| * See {@link #SUPPORTED_ABIS} and {@link #SUPPORTED_32_BIT_ABIS}. |
| */ |
| public static final String[] SUPPORTED_64_BIT_ABIS = |
| getStringList("ro.product.cpu.abilist64", ","); |
| |
| |
| static { |
| /* |
| * Adjusts CPU_ABI and CPU_ABI2 depending on whether or not a given process is 64 bit. |
| * 32 bit processes will always see 32 bit ABIs in these fields for backward |
| * compatibility. |
| */ |
| final String[] abiList; |
| if (VMRuntime.getRuntime().is64Bit()) { |
| abiList = SUPPORTED_64_BIT_ABIS; |
| } else { |
| abiList = SUPPORTED_32_BIT_ABIS; |
| } |
| |
| CPU_ABI = abiList[0]; |
| if (abiList.length > 1) { |
| CPU_ABI2 = abiList[1]; |
| } else { |
| CPU_ABI2 = ""; |
| } |
| } |
| |
| /** Various version strings. */ |
| public static class VERSION { |
| /** |
| * The internal value used by the underlying source control to |
| * represent this build. E.g., a perforce changelist number |
| * or a git hash. |
| */ |
| public static final String INCREMENTAL = getString("ro.build.version.incremental"); |
| |
| /** |
| * The user-visible version string. E.g., "1.0" or "3.4b5". |
| */ |
| public static final String RELEASE = getString("ro.build.version.release"); |
| |
| /** |
| * The user-visible SDK version of the framework in its raw String |
| * representation; use {@link #SDK_INT} instead. |
| * |
| * @deprecated Use {@link #SDK_INT} to easily get this as an integer. |
| */ |
| @Deprecated |
| public static final String SDK = getString("ro.build.version.sdk"); |
| |
| /** |
| * The user-visible SDK version of the framework; its possible |
| * values are defined in {@link Build.VERSION_CODES}. |
| */ |
| public static final int SDK_INT = SystemProperties.getInt( |
| "ro.build.version.sdk", 0); |
| |
| /** |
| * The current development codename, or the string "REL" if this is |
| * a release build. |
| */ |
| public static final String CODENAME = getString("ro.build.version.codename"); |
| |
| private static final String[] ALL_CODENAMES |
| = getStringList("ro.build.version.all_codenames", ","); |
| |
| /** |
| * @hide |
| */ |
| public static final String[] ACTIVE_CODENAMES = "REL".equals(ALL_CODENAMES[0]) |
| ? new String[0] : ALL_CODENAMES; |
| |
| /** |
| * The SDK version to use when accessing resources. |
| * Use the current SDK version code. For every active development codename |
| * we are operating under, we bump the assumed resource platform version by 1. |
| * @hide |
| */ |
| public static final int RESOURCES_SDK_INT = SDK_INT + ACTIVE_CODENAMES.length; |
| } |
| |
| /** |
| * Enumeration of the currently known SDK version codes. These are the |
| * values that can be found in {@link VERSION#SDK}. Version numbers |
| * increment monotonically with each official platform release. |
| */ |
| public static class VERSION_CODES { |
| /** |
| * Magic version number for a current development build, which has |
| * not yet turned into an official release. |
| */ |
| public static final int CUR_DEVELOPMENT = 10000; |
| |
| /** |
| * October 2008: The original, first, version of Android. Yay! |
| */ |
| public static final int BASE = 1; |
| |
| /** |
| * February 2009: First Android update, officially called 1.1. |
| */ |
| public static final int BASE_1_1 = 2; |
| |
| /** |
| * May 2009: Android 1.5. |
| */ |
| public static final int CUPCAKE = 3; |
| |
| /** |
| * September 2009: Android 1.6. |
| * |
| * <p>Applications targeting this or a later release will get these |
| * new changes in behavior:</p> |
| * <ul> |
| * <li> They must explicitly request the |
| * {@link android.Manifest.permission#WRITE_EXTERNAL_STORAGE} permission to be |
| * able to modify the contents of the SD card. (Apps targeting |
| * earlier versions will always request the permission.) |
| * <li> They must explicitly request the |
| * {@link android.Manifest.permission#READ_PHONE_STATE} permission to be |
| * able to be able to retrieve phone state info. (Apps targeting |
| * earlier versions will always request the permission.) |
| * <li> They are assumed to support different screen densities and |
| * sizes. (Apps targeting earlier versions are assumed to only support |
| * medium density normal size screens unless otherwise indicated). |
| * They can still explicitly specify screen support either way with the |
| * supports-screens manifest tag. |
| * <li> {@link android.widget.TabHost} will use the new dark tab |
| * background design. |
| * </ul> |
| */ |
| public static final int DONUT = 4; |
| |
| /** |
| * November 2009: Android 2.0 |
| * |
| * <p>Applications targeting this or a later release will get these |
| * new changes in behavior:</p> |
| * <ul> |
| * <li> The {@link android.app.Service#onStartCommand |
| * Service.onStartCommand} function will return the new |
| * {@link android.app.Service#START_STICKY} behavior instead of the |
| * old compatibility {@link android.app.Service#START_STICKY_COMPATIBILITY}. |
| * <li> The {@link android.app.Activity} class will now execute back |
| * key presses on the key up instead of key down, to be able to detect |
| * canceled presses from virtual keys. |
| * <li> The {@link android.widget.TabWidget} class will use a new color scheme |
| * for tabs. In the new scheme, the foreground tab has a medium gray background |
| * the background tabs have a dark gray background. |
| * </ul> |
| */ |
| public static final int ECLAIR = 5; |
| |
| /** |
| * December 2009: Android 2.0.1 |
| */ |
| public static final int ECLAIR_0_1 = 6; |
| |
| /** |
| * January 2010: Android 2.1 |
| */ |
| public static final int ECLAIR_MR1 = 7; |
| |
| /** |
| * June 2010: Android 2.2 |
| */ |
| public static final int FROYO = 8; |
| |
| /** |
| * November 2010: Android 2.3 |
| * |
| * <p>Applications targeting this or a later release will get these |
| * new changes in behavior:</p> |
| * <ul> |
| * <li> The application's notification icons will be shown on the new |
| * dark status bar background, so must be visible in this situation. |
| * </ul> |
| */ |
| public static final int GINGERBREAD = 9; |
| |
| /** |
| * February 2011: Android 2.3.3. |
| */ |
| public static final int GINGERBREAD_MR1 = 10; |
| |
| /** |
| * February 2011: Android 3.0. |
| * |
| * <p>Applications targeting this or a later release will get these |
| * new changes in behavior:</p> |
| * <ul> |
| * <li> The default theme for applications is now dark holographic: |
| * {@link android.R.style#Theme_Holo}. |
| * <li> On large screen devices that do not have a physical menu |
| * button, the soft (compatibility) menu is disabled. |
| * <li> The activity lifecycle has changed slightly as per |
| * {@link android.app.Activity}. |
| * <li> An application will crash if it does not call through |
| * to the super implementation of its |
| * {@link android.app.Activity#onPause Activity.onPause()} method. |
| * <li> When an application requires a permission to access one of |
| * its components (activity, receiver, service, provider), this |
| * permission is no longer enforced when the application wants to |
| * access its own component. This means it can require a permission |
| * on a component that it does not itself hold and still access that |
| * component. |
| * <li> {@link android.content.Context#getSharedPreferences |
| * Context.getSharedPreferences()} will not automatically reload |
| * the preferences if they have changed on storage, unless |
| * {@link android.content.Context#MODE_MULTI_PROCESS} is used. |
| * <li> {@link android.view.ViewGroup#setMotionEventSplittingEnabled} |
| * will default to true. |
| * <li> {@link android.view.WindowManager.LayoutParams#FLAG_SPLIT_TOUCH} |
| * is enabled by default on windows. |
| * <li> {@link android.widget.PopupWindow#isSplitTouchEnabled() |
| * PopupWindow.isSplitTouchEnabled()} will return true by default. |
| * <li> {@link android.widget.GridView} and {@link android.widget.ListView} |
| * will use {@link android.view.View#setActivated View.setActivated} |
| * for selected items if they do not implement {@link android.widget.Checkable}. |
| * <li> {@link android.widget.Scroller} will be constructed with |
| * "flywheel" behavior enabled by default. |
| * </ul> |
| */ |
| public static final int HONEYCOMB = 11; |
| |
| /** |
| * May 2011: Android 3.1. |
| */ |
| public static final int HONEYCOMB_MR1 = 12; |
| |
| /** |
| * June 2011: Android 3.2. |
| * |
| * <p>Update to Honeycomb MR1 to support 7 inch tablets, improve |
| * screen compatibility mode, etc.</p> |
| * |
| * <p>As of this version, applications that don't say whether they |
| * support XLARGE screens will be assumed to do so only if they target |
| * {@link #HONEYCOMB} or later; it had been {@link #GINGERBREAD} or |
| * later. Applications that don't support a screen size at least as |
| * large as the current screen will provide the user with a UI to |
| * switch them in to screen size compatibility mode.</p> |
| * |
| * <p>This version introduces new screen size resource qualifiers |
| * based on the screen size in dp: see |
| * {@link android.content.res.Configuration#screenWidthDp}, |
| * {@link android.content.res.Configuration#screenHeightDp}, and |
| * {@link android.content.res.Configuration#smallestScreenWidthDp}. |
| * Supplying these in <supports-screens> as per |
| * {@link android.content.pm.ApplicationInfo#requiresSmallestWidthDp}, |
| * {@link android.content.pm.ApplicationInfo#compatibleWidthLimitDp}, and |
| * {@link android.content.pm.ApplicationInfo#largestWidthLimitDp} is |
| * preferred over the older screen size buckets and for older devices |
| * the appropriate buckets will be inferred from them.</p> |
| * |
| * <p>Applications targeting this or a later release will get these |
| * new changes in behavior:</p> |
| * <ul> |
| * <li><p>New {@link android.content.pm.PackageManager#FEATURE_SCREEN_PORTRAIT} |
| * and {@link android.content.pm.PackageManager#FEATURE_SCREEN_LANDSCAPE} |
| * features were introduced in this release. Applications that target |
| * previous platform versions are assumed to require both portrait and |
| * landscape support in the device; when targeting Honeycomb MR1 or |
| * greater the application is responsible for specifying any specific |
| * orientation it requires.</p> |
| * <li><p>{@link android.os.AsyncTask} will use the serial executor |
| * by default when calling {@link android.os.AsyncTask#execute}.</p> |
| * <li><p>{@link android.content.pm.ActivityInfo#configChanges |
| * ActivityInfo.configChanges} will have the |
| * {@link android.content.pm.ActivityInfo#CONFIG_SCREEN_SIZE} and |
| * {@link android.content.pm.ActivityInfo#CONFIG_SMALLEST_SCREEN_SIZE} |
| * bits set; these need to be cleared for older applications because |
| * some developers have done absolute comparisons against this value |
| * instead of correctly masking the bits they are interested in. |
| * </ul> |
| */ |
| public static final int HONEYCOMB_MR2 = 13; |
| |
| /** |
| * October 2011: Android 4.0. |
| * |
| * <p>Applications targeting this or a later release will get these |
| * new changes in behavior:</p> |
| * <ul> |
| * <li> For devices without a dedicated menu key, the software compatibility |
| * menu key will not be shown even on phones. By targeting Ice Cream Sandwich |
| * or later, your UI must always have its own menu UI affordance if needed, |
| * on both tablets and phones. The ActionBar will take care of this for you. |
| * <li> 2d drawing hardware acceleration is now turned on by default. |
| * You can use |
| * {@link android.R.attr#hardwareAccelerated android:hardwareAccelerated} |
| * to turn it off if needed, although this is strongly discouraged since |
| * it will result in poor performance on larger screen devices. |
| * <li> The default theme for applications is now the "device default" theme: |
| * {@link android.R.style#Theme_DeviceDefault}. This may be the |
| * holo dark theme or a different dark theme defined by the specific device. |
| * The {@link android.R.style#Theme_Holo} family must not be modified |
| * for a device to be considered compatible. Applications that explicitly |
| * request a theme from the Holo family will be guaranteed that these themes |
| * will not change character within the same platform version. Applications |
| * that wish to blend in with the device should use a theme from the |
| * {@link android.R.style#Theme_DeviceDefault} family. |
| * <li> Managed cursors can now throw an exception if you directly close |
| * the cursor yourself without stopping the management of it; previously failures |
| * would be silently ignored. |
| * <li> The fadingEdge attribute on views will be ignored (fading edges is no |
| * longer a standard part of the UI). A new requiresFadingEdge attribute allows |
| * applications to still force fading edges on for special cases. |
| * <li> {@link android.content.Context#bindService Context.bindService()} |
| * will not automatically add in {@link android.content.Context#BIND_WAIVE_PRIORITY}. |
| * <li> App Widgets will have standard padding automatically added around |
| * them, rather than relying on the padding being baked into the widget itself. |
| * <li> An exception will be thrown if you try to change the type of a |
| * window after it has been added to the window manager. Previously this |
| * would result in random incorrect behavior. |
| * <li> {@link android.view.animation.AnimationSet} will parse out |
| * the duration, fillBefore, fillAfter, repeatMode, and startOffset |
| * XML attributes that are defined. |
| * <li> {@link android.app.ActionBar#setHomeButtonEnabled |
| * ActionBar.setHomeButtonEnabled()} is false by default. |
| * </ul> |
| */ |
| public static final int ICE_CREAM_SANDWICH = 14; |
| |
| /** |
| * December 2011: Android 4.0.3. |
| */ |
| public static final int ICE_CREAM_SANDWICH_MR1 = 15; |
| |
| /** |
| * June 2012: Android 4.1. |
| * |
| * <p>Applications targeting this or a later release will get these |
| * new changes in behavior:</p> |
| * <ul> |
| * <li> You must explicitly request the {@link android.Manifest.permission#READ_CALL_LOG} |
| * and/or {@link android.Manifest.permission#WRITE_CALL_LOG} permissions; |
| * access to the call log is no longer implicitly provided through |
| * {@link android.Manifest.permission#READ_CONTACTS} and |
| * {@link android.Manifest.permission#WRITE_CONTACTS}. |
| * <li> {@link android.widget.RemoteViews} will throw an exception if |
| * setting an onClick handler for views being generated by a |
| * {@link android.widget.RemoteViewsService} for a collection container; |
| * previously this just resulted in a warning log message. |
| * <li> New {@link android.app.ActionBar} policy for embedded tabs: |
| * embedded tabs are now always stacked in the action bar when in portrait |
| * mode, regardless of the size of the screen. |
| * <li> {@link android.webkit.WebSettings#setAllowFileAccessFromFileURLs(boolean) |
| * WebSettings.setAllowFileAccessFromFileURLs} and |
| * {@link android.webkit.WebSettings#setAllowUniversalAccessFromFileURLs(boolean) |
| * WebSettings.setAllowUniversalAccessFromFileURLs} default to false. |
| * <li> Calls to {@link android.content.pm.PackageManager#setComponentEnabledSetting |
| * PackageManager.setComponentEnabledSetting} will now throw an |
| * IllegalArgumentException if the given component class name does not |
| * exist in the application's manifest. |
| * <li> {@link android.nfc.NfcAdapter#setNdefPushMessage |
| * NfcAdapter.setNdefPushMessage}, |
| * {@link android.nfc.NfcAdapter#setNdefPushMessageCallback |
| * NfcAdapter.setNdefPushMessageCallback} and |
| * {@link android.nfc.NfcAdapter#setOnNdefPushCompleteCallback |
| * NfcAdapter.setOnNdefPushCompleteCallback} will throw |
| * IllegalStateException if called after the Activity has been destroyed. |
| * <li> Accessibility services must require the new |
| * {@link android.Manifest.permission#BIND_ACCESSIBILITY_SERVICE} permission or |
| * they will not be available for use. |
| * <li> {@link android.accessibilityservice.AccessibilityServiceInfo#FLAG_INCLUDE_NOT_IMPORTANT_VIEWS |
| * AccessibilityServiceInfo.FLAG_INCLUDE_NOT_IMPORTANT_VIEWS} must be set |
| * for unimportant views to be included in queries. |
| * </ul> |
| */ |
| public static final int JELLY_BEAN = 16; |
| |
| /** |
| * November 2012: Android 4.2, Moar jelly beans! |
| * |
| * <p>Applications targeting this or a later release will get these |
| * new changes in behavior:</p> |
| * <ul> |
| * <li>Content Providers: The default value of {@code android:exported} is now |
| * {@code false}. See |
| * <a href="{@docRoot}guide/topics/manifest/provider-element.html#exported"> |
| * the android:exported section</a> in the provider documentation for more details.</li> |
| * <li>{@link android.view.View#getLayoutDirection() View.getLayoutDirection()} |
| * can return different values than {@link android.view.View#LAYOUT_DIRECTION_LTR} |
| * based on the locale etc. |
| * <li> {@link android.webkit.WebView#addJavascriptInterface(Object, String) |
| * WebView.addJavascriptInterface} requires explicit annotations on methods |
| * for them to be accessible from Javascript. |
| * </ul> |
| */ |
| public static final int JELLY_BEAN_MR1 = 17; |
| |
| /** |
| * July 2013: Android 4.3, the revenge of the beans. |
| */ |
| public static final int JELLY_BEAN_MR2 = 18; |
| |
| /** |
| * October 2013: Android 4.4, KitKat, another tasty treat. |
| * |
| * <p>Applications targeting this or a later release will get these |
| * new changes in behavior:</p> |
| * <ul> |
| * <li> The default result of {android.preference.PreferenceActivity#isValidFragment |
| * PreferenceActivity.isValueFragment} becomes false instead of true.</li> |
| * <li> In {@link android.webkit.WebView}, apps targeting earlier versions will have |
| * JS URLs evaluated directly and any result of the evaluation will not replace |
| * the current page content. Apps targetting KITKAT or later that load a JS URL will |
| * have the result of that URL replace the content of the current page</li> |
| * <li> {@link android.app.AlarmManager#set AlarmManager.set} becomes interpreted as |
| * an inexact value, to give the system more flexibility in scheduling alarms.</li> |
| * <li> {@link android.content.Context#getSharedPreferences(String, int) |
| * Context.getSharedPreferences} no longer allows a null name.</li> |
| * <li> {@link android.widget.RelativeLayout} changes to compute wrapped content |
| * margins correctly.</li> |
| * <li> {@link android.app.ActionBar}'s window content overlay is allowed to be |
| * drawn.</li> |
| * <li>The {@link android.Manifest.permission#READ_EXTERNAL_STORAGE} |
| * permission is now always enforced.</li> |
| * <li>Access to package-specific external storage directories belonging |
| * to the calling app no longer requires the |
| * {@link android.Manifest.permission#READ_EXTERNAL_STORAGE} or |
| * {@link android.Manifest.permission#WRITE_EXTERNAL_STORAGE} |
| * permissions.</li> |
| * </ul> |
| */ |
| public static final int KITKAT = 19; |
| |
| /** |
| * Android 4.4W: KitKat for watches, snacks on the run. |
| * |
| * <p>Applications targeting this or a later release will get these |
| * new changes in behavior:</p> |
| * <ul> |
| * <li>{@link android.app.AlertDialog} might not have a default background if the theme does |
| * not specify one.</li> |
| * </ul> |
| */ |
| public static final int KITKAT_WATCH = 20; |
| |
| /** |
| * Temporary until we completely switch to {@link #LOLLIPOP}. |
| * @hide |
| */ |
| public static final int L = 21; |
| |
| /** |
| * Lollipop. A flat one with beautiful shadows. But still tasty. |
| * |
| * <p>Applications targeting this or a later release will get these |
| * new changes in behavior:</p> |
| * <ul> |
| * <li> {@link android.content.Context#bindService Context.bindService} now |
| * requires an explicit Intent, and will throw an exception if given an implicit |
| * Intent.</li> |
| * <li> {@link android.app.Notification.Builder Notification.Builder} will |
| * not have the colors of their various notification elements adjusted to better |
| * match the new material design look.</li> |
| * <li> {@link android.os.Message} will validate that a message is not currently |
| * in use when it is recycled.</li> |
| * <li> Hardware accelerated drawing in windows will be enabled automatically |
| * in most places.</li> |
| * <li> {@link android.widget.Spinner} throws an exception if attaching an |
| * adapter with more than one item type.</li> |
| * <li> If the app is a launcher, the launcher will be available to the user |
| * even when they are using corporate profiles (which requires that the app |
| * use {@link android.content.pm.LauncherApps} to correctly populate its |
| * apps UI).</li> |
| * <li> Calling {@link android.app.Service#stopForeground Service.stopForeground} |
| * with removeNotification false will modify the still posted notification so that |
| * it is no longer forced to be ongoing.</li> |
| * <li> A {@link android.service.dreams.DreamService} must require the |
| * {@link android.Manifest.permission#BIND_DREAM_SERVICE} permission to be usable.</li> |
| * </ul> |
| */ |
| public static final int LOLLIPOP = 21; |
| |
| /** |
| * Lollipop with an extra sugar coating on the outside! |
| */ |
| public static final int LOLLIPOP_MR1 = 22; |
| } |
| |
| /** The type of build, like "user" or "eng". */ |
| public static final String TYPE = getString("ro.build.type"); |
| |
| /** Comma-separated tags describing the build, like "unsigned,debug". */ |
| public static final String TAGS = getString("ro.build.tags"); |
| |
| /** A string that uniquely identifies this build. Do not attempt to parse this value. */ |
| public static final String FINGERPRINT = deriveFingerprint(); |
| |
| /** |
| * Some devices split the fingerprint components between multiple |
| * partitions, so we might derive the fingerprint at runtime. |
| */ |
| private static String deriveFingerprint() { |
| String finger = SystemProperties.get("ro.build.fingerprint"); |
| if (TextUtils.isEmpty(finger)) { |
| finger = getString("ro.product.brand") + '/' + |
| getString("ro.product.name") + '/' + |
| getString("ro.product.device") + ':' + |
| getString("ro.build.version.release") + '/' + |
| getString("ro.build.id") + '/' + |
| getString("ro.build.version.incremental") + ':' + |
| getString("ro.build.type") + '/' + |
| getString("ro.build.tags"); |
| } |
| return finger; |
| } |
| |
| /** |
| * Ensure that raw fingerprint system property is defined. If it was derived |
| * dynamically by {@link #deriveFingerprint()} this is where we push the |
| * derived value into the property service. |
| * |
| * @hide |
| */ |
| public static void ensureFingerprintProperty() { |
| if (TextUtils.isEmpty(SystemProperties.get("ro.build.fingerprint"))) { |
| try { |
| SystemProperties.set("ro.build.fingerprint", FINGERPRINT); |
| } catch (IllegalArgumentException e) { |
| Slog.e(TAG, "Failed to set fingerprint property", e); |
| } |
| } |
| } |
| |
| /** |
| * Check that device fingerprint is defined and that it matches across |
| * various partitions. |
| * |
| * @hide |
| */ |
| public static boolean isFingerprintConsistent() { |
| final String system = SystemProperties.get("ro.build.fingerprint"); |
| final String vendor = SystemProperties.get("ro.vendor.build.fingerprint"); |
| |
| if (TextUtils.isEmpty(system)) { |
| Slog.e(TAG, "Required ro.build.fingerprint is empty!"); |
| return false; |
| } |
| |
| if (!TextUtils.isEmpty(vendor)) { |
| if (!Objects.equals(system, vendor)) { |
| Slog.e(TAG, "Mismatched fingerprints; system reported " + system |
| + " but vendor reported " + vendor); |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| // The following properties only make sense for internal engineering builds. |
| public static final long TIME = getLong("ro.build.date.utc") * 1000; |
| public static final String USER = getString("ro.build.user"); |
| public static final String HOST = getString("ro.build.host"); |
| |
| /** |
| * Returns true if we are running a debug build such as "user-debug" or "eng". |
| * @hide |
| */ |
| public static final boolean IS_DEBUGGABLE = |
| SystemProperties.getInt("ro.debuggable", 0) == 1; |
| |
| /** |
| * Returns the version string for the radio firmware. May return |
| * null (if, for instance, the radio is not currently on). |
| */ |
| public static String getRadioVersion() { |
| return SystemProperties.get(TelephonyProperties.PROPERTY_BASEBAND_VERSION, null); |
| } |
| |
| private static String getString(String property) { |
| return SystemProperties.get(property, UNKNOWN); |
| } |
| |
| private static String[] getStringList(String property, String separator) { |
| String value = SystemProperties.get(property); |
| if (value.isEmpty()) { |
| return new String[0]; |
| } else { |
| return value.split(separator); |
| } |
| } |
| |
| private static long getLong(String property) { |
| try { |
| return Long.parseLong(SystemProperties.get(property)); |
| } catch (NumberFormatException e) { |
| return -1; |
| } |
| } |
| } |
