Android 各版本号对应SDK_INT值（更新到Android S)
范书
其中SDK对应Android版本如下：
public static final int BASE = 1; //Android 1.0
public static final int BASE_1_1 = 2; //Android 1.1
public static final int CUPCAKE = 3; //Android 1.5
public static final int DONUT = 4; //Android 1.6
public static final int ECLAIR = 5; //Android 2.0
public static final int ECLAIR_0_1 = 6; //Android 2.0.1
public static final int ECLAIR_MR1 = 7; //Android 2.1
public static final int FROYO = 8; //Android 2.2
public static final int GINGERBREAD = 9; //Android 2.3
public static final int HONEYCOMB = 11; //Android 3.0
public static final int HONEYCOMB_MR1 = 12; //Android 3.1
public static final int HONEYCOMB_MR2 = 13; //Android 3.2
public static final int ICE_CREAM_SANDWICH = 14; //Android 4.0
public static final int ICE_CREAM_SANDWICH_MR1 = 15; //Android 4.0.3
public static final int JELLY_BEAN = 16; //Android 4.1
public static final int JELLY_BEAN_MR1 = 17; //Android 4.2
public static final int JELLY_BEAN_MR2 = 18; //Android 4.3
public static final int KITKAT = 19; //Android 4.4
public static final int KITKAT_WATCH = 20; //Android 4.4W
public static final int L = 21; //Android 5.0
public static final int LOLLIPOP = 21; //Android 5.0
public static final int LOLLIPOP_MR1 = 22; //Android 5.1
public static final int M = 23; //Android 6.0
public static final int N = 24; //Android 7.0
public static final int N_MR1 = 25; //Android 7.1
public static final int O = 26; //Android 8.0
public static final int O_MR1 = 27; //Android 8.1
public static final int P = 28; //Android 9
public static final int Q = 29; //Android 10
public static final int R = 30; //Android 11
public static final int S = 31; //Android 12
各版本详细信息如下：
/**
* 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 = VMRuntime.SDK_VERSION_CUR_DEVELOPMENT;
/**
* 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. For more information about this release, see the
* <a href="/about/versions/kitkat/">Android KitKat overview</a>.</p>
* <ul>
* <li> The default result of
* {@link android.preference.PreferenceActivity#isValidFragment(String)
* 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;
/**
* June 2014: 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;
/**
* November 2014: 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. For more information about this release, see the
* <a href="/about/versions/lollipop/">Android Lollipop overview</a>.</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;
/**
* March 2015: Lollipop with an extra sugar coating on the outside!
* For more information about this release, see the
* <a href="/about/versions/android-5.1">Android 5.1 APIs</a>.
*/
public static final int LOLLIPOP_MR1 = 22;
/**
* M is for Marshmallow!
*
* <p>Applications targeting this or a later release will get these
* new changes in behavior. For more information about this release, see the
* <a href="/about/versions/marshmallow/">Android 6.0 Marshmallow overview</a>.</p>
* <ul>
* <li> Runtime permissions. Dangerous permissions are no longer granted at
* install time, but must be requested by the application at runtime through
* {@link android.app.Activity#requestPermissions}.</li>
* <li> Bluetooth and Wi-Fi scanning now requires holding the location permission.</li>
* <li> {@link android.app.AlarmManager#setTimeZone AlarmManager.setTimeZone} will fail if
* the given timezone is non-Olson.</li>
* <li> Activity transitions will only return shared
* elements mapped in the returned view hierarchy back to the calling activity.</li>
* <li> {@link android.view.View} allows a number of behaviors that may break
* existing apps: Canvas throws an exception if restore() is called too many times,
* widgets may return a hint size when returning UNSPECIFIED measure specs, and it
* will respect the attributes {@link android.R.attr#foreground},
* {@link android.R.attr#foregroundGravity}, {@link android.R.attr#foregroundTint}, and
* {@link android.R.attr#foregroundTintMode}.</li>
* <li> {@link android.view.MotionEvent#getButtonState MotionEvent.getButtonState}
* will no longer report {@link android.view.MotionEvent#BUTTON_PRIMARY}
* and {@link android.view.MotionEvent#BUTTON_SECONDARY} as synonyms for
* {@link android.view.MotionEvent#BUTTON_STYLUS_PRIMARY} and
* {@link android.view.MotionEvent#BUTTON_STYLUS_SECONDARY}.</li>
* <li> {@link android.widget.ScrollView} now respects the layout param margins
* when measuring.</li>
* </ul>
*/
public static final int M = 23;
/**
* N is for Nougat.
*
* <p>Applications targeting this or a later release will get these
* new changes in behavior. For more information about this release, see
* the <a href="/about/versions/nougat/">Android Nougat overview</a>.</p>
* <ul>
* <li> {@link android.app.DownloadManager.Request#setAllowedNetworkTypes
* DownloadManager.Request.setAllowedNetworkTypes}
* will disable "allow over metered" when specifying only
* {@link android.app.DownloadManager.Request#NETWORK_WIFI}.</li>
* <li> {@link android.app.DownloadManager} no longer allows access to raw
* file paths.</li>
* <li> {@link android.app.Notification.Builder#setShowWhen
* Notification.Builder.setShowWhen}
* must be called explicitly to have the time shown, and various other changes in
* {@link android.app.Notification.Builder Notification.Builder} to how notifications
* are shown.</li>
* <li>{@link android.content.Context#MODE_WORLD_READABLE} and
* {@link android.content.Context#MODE_WORLD_WRITEABLE} are no longer supported.</li>
* <li>{@link android.os.FileUriExposedException} will be thrown to applications.</li>
* <li>Applications will see global drag and drops as per
* {@link android.view.View#DRAG_FLAG_GLOBAL}.</li>
* <li>{@link android.webkit.WebView#evaluateJavascript WebView.evaluateJavascript}
* will not persist state from an empty WebView.</li>
* <li>{@link android.animation.AnimatorSet} will not ignore calls to end() before
* start().</li>
* <li>{@link android.app.AlarmManager#cancel(android.app.PendingIntent)
* AlarmManager.cancel} will throw a NullPointerException if given a null operation.</li>
* <li>{@link android.app.FragmentManager} will ensure fragments have been created
* before being placed on the back stack.</li>
* <li>{@link android.app.FragmentManager} restores fragments in
* {@link android.app.Fragment#onCreate Fragment.onCreate} rather than after the
* method returns.</li>
* <li>{@link android.R.attr#resizeableActivity} defaults to true.</li>
* <li>{@link android.graphics.drawable.AnimatedVectorDrawable} throws exceptions when
* opening invalid VectorDrawable animations.</li>
* <li>{@link android.view.ViewGroup.MarginLayoutParams} will no longer be dropped
* when converting between some types of layout params (such as
* {@link android.widget.LinearLayout.LayoutParams LinearLayout.LayoutParams} to
* {@link android.widget.RelativeLayout.LayoutParams RelativeLayout.LayoutParams}).</li>
* <li>Your application processes will not be killed when the device density changes.</li>
* <li>Drag and drop. After a view receives the
* {@link android.view.DragEvent#ACTION_DRAG_ENTERED} event, when the drag shadow moves into
* a descendant view that can accept the data, the view receives the
* {@link android.view.DragEvent#ACTION_DRAG_EXITED} event and won’t receive
* {@link android.view.DragEvent#ACTION_DRAG_LOCATION} and
* {@link android.view.DragEvent#ACTION_DROP} events while the drag shadow is within that
* descendant view, even if the descendant view returns <code>false</code> from its handler
* for these events.</li>
* </ul>
*/
public static final int N = 24;
/**
* N MR1: Nougat++. For more information about this release, see
* <a href="/about/versions/nougat/android-7.1">Android 7.1 for
* Developers</a>.
*/
public static final int N_MR1 = 25;
/**
* O.
*
* <p>Applications targeting this or a later release will get these
* new changes in behavior. For more information about this release, see
* the <a href="/about/versions/oreo/">Android Oreo overview</a>.</p>
* <ul>
* <li><a href="{@docRoot}about/versions/oreo/background.html">Background execution limits</a>
* are applied to the application.</li>
* <li>The behavior of AccountManager's
* {@link android.accounts.AccountManager#getAccountsByType},
* {@link android.accounts.AccountManager#getAccountsByTypeAndFeatures}, and
* {@link android.accounts.AccountManager#hasFeatures} has changed as documented there.</li>
* <li>{@link android.app.ActivityManager.RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE_PRE_26}
* is now returned as
* {@link android.app.ActivityManager.RunningAppProcessInfo#IMPORTANCE_PERCEPTIBLE}.</li>
* <li>The {@link android.app.NotificationManager} now requires the use of notification
* channels.</li>
* <li>Changes to the strict mode that are set in
* {@link Application#onCreate Application.onCreate} will no longer be clobbered after
* that function returns.</li>
* <li>A shared library apk with native code will have that native code included in
* the library path of its clients.</li>
* <li>{@link android.content.Context#getSharedPreferences Context.getSharedPreferences}
* in credential encrypted storage will throw an exception before the user is unlocked.</li>
* <li>Attempting to retrieve a {@link Context#FINGERPRINT_SERVICE} on a device that
* does not support that feature will now throw a runtime exception.</li>
* <li>{@link android.app.Fragment} will stop any active view animations when
* the fragment is stopped.</li>
* <li>Some compatibility code in Resources that attempts to use the default Theme
* the app may be using will be turned off, requiring the app to explicitly request
* resources with the right theme.</li>
* <li>{@link android.content.ContentResolver#notifyChange ContentResolver.notifyChange} and
* {@link android.content.ContentResolver#registerContentObserver
* ContentResolver.registerContentObserver}
* will throw a SecurityException if the caller does not have permission to access
* the provider (or the provider doesn't exit); otherwise the call will be silently
* ignored.</li>
* <li>{@link android.hardware.camera2.CameraDevice#createCaptureRequest
* CameraDevice.createCaptureRequest} will enable
* {@link android.hardware.camera2.CaptureRequest#CONTROL_ENABLE_ZSL} by default for
* still image capture.</li>
* <li>WallpaperManager's {@link android.app.WallpaperManager#getWallpaperFile},
* {@link android.app.WallpaperManager#getDrawable},
* {@link android.app.WallpaperManager#getFastDrawable},
* {@link android.app.WallpaperManager#peekDrawable}, and
* {@link android.app.WallpaperManager#peekFastDrawable} will throw an exception
* if you can not access the wallpaper.</li>
* <li>The behavior of
* {@link android.hardware.usb.UsbDeviceConnection#requestWait UsbDeviceConnection.requestWait}
* is modified as per the documentation there.</li>
* <li>{@link StrictMode.VmPolicy.Builder#detectAll StrictMode.VmPolicy.Builder.detectAll}
* will also enable {@link StrictMode.VmPolicy.Builder#detectContentUriWithoutPermission}
* and {@link StrictMode.VmPolicy.Builder#detectUntaggedSockets}.</li>
* <li>{@link StrictMode.ThreadPolicy.Builder#detectAll StrictMode.ThreadPolicy.Builder.detectAll}
* will also enable {@link StrictMode.ThreadPolicy.Builder#detectUnbufferedIo}.</li>
* <li>{@link android.provider.DocumentsContract}'s various methods will throw failure
* exceptions back to the caller instead of returning null.
* <li>{@link View#hasFocusable View.hasFocusable} now includes auto-focusable views.</li>
* <li>{@link android.view.SurfaceView} will no longer always change the underlying
* Surface object when something about it changes; apps need to look at the current
* state of the object to determine which things they are interested in have changed.</li>
* <li>{@link android.view.WindowManager.LayoutParams#TYPE_APPLICATION_OVERLAY} must be
* used for overlay windows, other system overlay window types are not allowed.</li>
* <li>{@link android.view.ViewTreeObserver#addOnDrawListener
* ViewTreeObserver.addOnDrawListener} will throw an exception if called from within
* onDraw.</li>
* <li>{@link android.graphics.Canvas#setBitmap Canvas.setBitmap} will no longer preserve
* the current matrix and clip stack of the canvas.</li>
* <li>{@link android.widget.ListPopupWindow#setHeight ListPopupWindow.setHeight}
* will throw an exception if a negative height is supplied.</li>
* <li>{@link android.widget.TextView} will use internationalized input for numbers,
* dates, and times.</li>
* <li>{@link android.widget.Toast} must be used for showing toast windows; the toast
* window type can not be directly used.</li>
* <li>{@link android.net.wifi.WifiManager#getConnectionInfo WifiManager.getConnectionInfo}
* requires that the caller hold the location permission to return BSSID/SSID</li>
* <li>{@link android.net.wifi.p2p.WifiP2pManager#requestPeers WifiP2pManager.requestPeers}
* requires the caller hold the location permission.</li>
* <li>{@link android.R.attr#maxAspectRatio} defaults to 0, meaning there is no restriction
* on the app's maximum aspect ratio (so it can be stretched to fill larger screens).</li>
* <li>{@link android.R.attr#focusable} defaults to a new state ({@code auto}) where it will
* inherit the value of {@link android.R.attr#clickable} unless explicitly overridden.</li>
* <li>A default theme-appropriate focus-state highlight will be supplied to all Views
* which don't provide a focus-state drawable themselves. This can be disabled by setting
* {@link android.R.attr#defaultFocusHighlightEnabled} to false.</li>
* </ul>
*/
public static final int O = 26;
/**
* O MR1.
*
* <p>Applications targeting this or a later release will get these
* new changes in behavior. For more information about this release, see
* <a href="/about/versions/oreo/android-8.1">Android 8.1 features and
* APIs</a>.</p>
* <ul>
* <li>Apps exporting and linking to apk shared libraries must explicitly
* enumerate all signing certificates in a consistent order.</li>
* <li>{@link android.R.attr#screenOrientation} can not be used to request a fixed
* orientation if the associated activity is not fullscreen and opaque.</li>
* </ul>
*
*/
public static final int O_MR1 = 27;
/**
* P.
*
* <p>Applications targeting this or a later release will get these
* new changes in behavior. For more information about this release, see the
* <a href="/about/versions/pie/">Android 9 Pie overview</a>.</p>
* <ul>
* <li>{@link android.app.Service#startForeground Service.startForeground} requires
* that apps hold the permission
* {@link android.Manifest.permission#FOREGROUND_SERVICE}.</li>
* <li>{@link android.widget.LinearLayout} will always remeasure weighted children,
* even if there is no excess space.</li>
* </ul>
*
*/
public static final int P = 28;
/**
* Q.
* <p>
* <em>Why? Why, to give you a taste of your future, a preview of things
* to come. Con permiso, Capitan. The hall is rented, the orchestra
* engaged. It's now time to see if you can dance.</em>
*/
public static final int Q = 29;
/**
* R.
*/
public static final int R = 30;
/**
* S.
*/
public static final int S = 31;
}
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