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Window

public abstract class Window
extends Object

java.lang.Object
   ↳ android.view.Window


Abstract base class for a top-level window look and behavior policy. An instance of this class should be used as the top-level view added to the window manager. It provides standard UI policies such as a background, title area, default key processing, etc.

The only existing implementation of this abstract class is android.view.PhoneWindow, which you should instantiate when needing a Window.

Summary

Nested classes

interface Window.Callback

API from a Window back to its caller. 

interface Window.OnFrameMetricsAvailableListener

Callback for clients that want frame timing information for each frame rendered by the Window. 

interface Window.OnRestrictedCaptionAreaChangedListener

Callback for clients that want to be aware of where caption draws content. 

XML attributes

android:windowAllowEnterTransitionOverlap Flag indicating whether this Window's transition should overlap with the exiting transition of the calling Activity. 
android:windowAllowReturnTransitionOverlap Flag indicating whether this Window's transition should overlap with the exiting transition of the called Activity when the called Activity finishes. 
android:windowContentTransitionManager Reference to a TransitionManager XML resource defining the desired transitions between different window content. 
android:windowEnterTransition Reference to a Transition XML resource defining the desired Transition used to move Views into the initial Window's content Scene. 
android:windowExitTransition Reference to a Transition XML resource defining the desired Transition used to move Views out of the Window's content Scene when launching a new Activity. 
android:windowReenterTransition Reference to a Transition XML resource defining the desired Transition used to move Views in to the scene when returning from a previously-started Activity. 
android:windowReturnTransition Reference to a Transition XML resource defining the desired Transition used to move Views out of the scene when the Window is preparing to close. 
android:windowSharedElementEnterTransition Reference to a Transition XML resource defining the desired Transition used to move shared elements transferred into the Window's initial content Scene. 
android:windowSharedElementExitTransition Reference to a Transition XML resource defining the desired Transition used when starting a new Activity to move shared elements prior to transferring to the called Activity. 
android:windowSharedElementReenterTransition Reference to a Transition XML resource defining the desired Transition used for shared elements transferred back to a calling Activity. 
android:windowSharedElementReturnTransition Reference to a Transition XML resource defining the desired Transition used to move shared elements transferred back to a calling Activity. 
android:windowSharedElementsUseOverlay Indicates whether or not shared elements should use an overlay during transitions. 
android:windowTransitionBackgroundFadeDuration The duration, in milliseconds, of the window background fade duration when transitioning into or away from an Activity when called with an Activity Transition. 

Constants

int DECOR_CAPTION_SHADE_AUTO

Flag for letting the theme drive the color of the window caption controls.

int DECOR_CAPTION_SHADE_DARK

Flag for setting dark-color controls on the window caption.

int DECOR_CAPTION_SHADE_LIGHT

Flag for setting light-color controls on the window caption.

int DEFAULT_FEATURES

This constant was deprecated in API level 22. use getDefaultFeatures(android.content.Context) instead.

int FEATURE_ACTION_BAR

Flag for enabling the Action Bar.

int FEATURE_ACTION_BAR_OVERLAY

Flag for requesting an Action Bar that overlays window content.

int FEATURE_ACTION_MODE_OVERLAY

Flag for specifying the behavior of action modes when an Action Bar is not present.

int FEATURE_ACTIVITY_TRANSITIONS

Enables Activities to run Activity Transitions either through sending or receiving ActivityOptions bundle created with makeSceneTransitionAnimation(android.app.Activity, android.util.Pair[]) or makeSceneTransitionAnimation(android.app.Activity, View, String).

int FEATURE_CONTENT_TRANSITIONS

Flag for requesting that window content changes should be animated using a TransitionManager.

int FEATURE_CONTEXT_MENU

Flag for the context menu.

int FEATURE_CUSTOM_TITLE

Flag for custom title.

int FEATURE_INDETERMINATE_PROGRESS

This constant was deprecated in API level 24. No longer supported starting in API 21.

int FEATURE_LEFT_ICON

Flag for having an icon on the left side of the title bar

int FEATURE_NO_TITLE

Flag for the "no title" feature, turning off the title at the top of the screen.

int FEATURE_OPTIONS_PANEL

Flag for the "options panel" feature.

int FEATURE_PROGRESS

This constant was deprecated in API level 24. No longer supported starting in API 21.

int FEATURE_RIGHT_ICON

Flag for having an icon on the right side of the title bar

int FEATURE_SWIPE_TO_DISMISS

Flag for requesting a decoration-free window that is dismissed by swiping from the left.

int ID_ANDROID_CONTENT

The ID that the main layout in the XML layout file should have.

String NAVIGATION_BAR_BACKGROUND_TRANSITION_NAME

The transitionName for the navigation bar background View when a custom background is used.

int PROGRESS_END

This constant was deprecated in API level 24. FEATURE_PROGRESS and related methods are no longer supported starting in API 21.

int PROGRESS_INDETERMINATE_OFF

This constant was deprecated in API level 24. FEATURE_INDETERMINATE_PROGRESS and related methods are no longer supported starting in API 21.

int PROGRESS_INDETERMINATE_ON

This constant was deprecated in API level 24. FEATURE_INDETERMINATE_PROGRESS and related methods are no longer supported starting in API 21.

int PROGRESS_SECONDARY_END

This constant was deprecated in API level 24. FEATURE_PROGRESS and related methods are no longer supported starting in API 21.

int PROGRESS_SECONDARY_START

This constant was deprecated in API level 24. FEATURE_PROGRESS and related methods are no longer supported starting in API 21.

int PROGRESS_START

This constant was deprecated in API level 24. FEATURE_PROGRESS and related methods are no longer supported starting in API 21.

int PROGRESS_VISIBILITY_OFF

This constant was deprecated in API level 24. FEATURE_PROGRESS and related methods are no longer supported starting in API 21.

int PROGRESS_VISIBILITY_ON

This constant was deprecated in API level 24. FEATURE_PROGRESS and related methods are no longer supported starting in API 21.

String STATUS_BAR_BACKGROUND_TRANSITION_NAME

The transitionName for the status bar background View when a custom background is used.

Public constructors

Window(Context context)

Public methods

abstract void addContentView(View view, ViewGroup.LayoutParams params)

Variation on setContentView(View, android.view.ViewGroup.LayoutParams) to add an additional content view to the screen.

void addFlags(int flags)

Convenience function to set the flag bits as specified in flags, as per setFlags(int, int).

final void addOnFrameMetricsAvailableListener(Window.OnFrameMetricsAvailableListener listener, Handler handler)

Set an observer to collect frame stats for each frame rendererd in this window.

void clearFlags(int flags)

Convenience function to clear the flag bits as specified in flags, as per setFlags(int, int).

abstract void closeAllPanels()
abstract void closePanel(int featureId)
View findViewById(int id)

Finds a view that was identified by the id attribute from the XML that was processed in onCreate(Bundle).

boolean getAllowEnterTransitionOverlap()

Returns how the transition set in setEnterTransition(android.transition.Transition) overlaps with the exit transition of the calling Activity.

boolean getAllowReturnTransitionOverlap()

Returns how the transition set in setExitTransition(android.transition.Transition) overlaps with the exit transition of the called Activity when reentering after if finishes.

final WindowManager.LayoutParams getAttributes()

Retrieve the current window attributes associated with this panel.

final Window.Callback getCallback()

Return the current Callback interface for this window.

final Window getContainer()

Return the container for this Window.

Scene getContentScene()

Retrieve the Scene representing this window's current content.

final Context getContext()

Return the Context this window policy is running in, for retrieving resources and other information.

abstract View getCurrentFocus()

Return the view in this Window that currently has focus, or null if there are none.

abstract View getDecorView()

Retrieve the top-level window decor view (containing the standard window frame/decorations and the client's content inside of that), which can be added as a window to the window manager.

static int getDefaultFeatures(Context context)

Return the feature bits set by default on a window.

Transition getEnterTransition()

Returns the transition used to move Views into the initial scene.

Transition getExitTransition()

Returns the Transition that will be used to move Views out of the scene when starting a new Activity.

abstract LayoutInflater getLayoutInflater()

Quick access to the LayoutInflater instance that this Window retrieved from its Context.

MediaController getMediaController()

Gets the MediaController that was previously set.

abstract int getNavigationBarColor()
Transition getReenterTransition()

Returns the Transition that will be used to move Views in to the scene when returning from a previously-started Activity.

Transition getReturnTransition()

Returns he Transition that will be used to move Views out of the scene when the Window is preparing to close, for example after a call to finishAfterTransition().

Transition getSharedElementEnterTransition()

Returns the Transition that will be used for shared elements transferred into the content Scene.

Transition getSharedElementExitTransition()

Returns the Transition to use for shared elements in the launching Window prior to transferring to the launched Activity's Window.

Transition getSharedElementReenterTransition()

Returns the Transition that will be used for shared elements reentering from a started Activity after it has returned the shared element to it start location.

Transition getSharedElementReturnTransition()

Returns the Transition that will be used for shared elements transferred back to a calling Activity.

boolean getSharedElementsUseOverlay()

Returns true when shared elements should use an Overlay during shared element transitions or false when they should animate as part of the normal View hierarchy.

abstract int getStatusBarColor()
long getTransitionBackgroundFadeDuration()

Returns the duration, in milliseconds, of the window background fade when transitioning into or away from an Activity when called with an Activity Transition.

TransitionManager getTransitionManager()

Retrieve the TransitionManager responsible for for default transitions in this window.

abstract int getVolumeControlStream()
WindowManager getWindowManager()

Return the window manager allowing this Window to display its own windows.

final TypedArray getWindowStyle()

Return the Window attributes from this window's theme.

final boolean hasChildren()
boolean hasFeature(int feature)

Query for the availability of a certain feature.

void injectInputEvent(InputEvent event)

Inject an event to window locally.

abstract void invalidatePanelMenu(int featureId)
final boolean isActive()
abstract boolean isFloating()

Return whether this window is being displayed with a floating style (based on the windowIsFloating attribute in the style/theme).

abstract boolean isShortcutKey(int keyCode, KeyEvent event)

Is a keypress one of the defined shortcut keys for this window.

final void makeActive()
abstract void onConfigurationChanged(Configuration newConfig)

Should be called when the configuration is changed.

abstract void openPanel(int featureId, KeyEvent event)
abstract View peekDecorView()

Retrieve the current decor view, but only if it has already been created; otherwise returns null.

abstract boolean performContextMenuIdentifierAction(int id, int flags)
abstract boolean performPanelIdentifierAction(int featureId, int id, int flags)
abstract boolean performPanelShortcut(int featureId, int keyCode, KeyEvent event, int flags)
final void removeOnFrameMetricsAvailableListener(Window.OnFrameMetricsAvailableListener listener)

Remove observer and stop listening to frame stats for this window.

boolean requestFeature(int featureId)

Enable extended screen features.

abstract void restoreHierarchyState(Bundle savedInstanceState)
abstract Bundle saveHierarchyState()
void setAllowEnterTransitionOverlap(boolean allow)

Controls how the transition set in setEnterTransition(android.transition.Transition) overlaps with the exit transition of the calling Activity.

void setAllowReturnTransitionOverlap(boolean allow)

Controls how the transition set in setExitTransition(android.transition.Transition) overlaps with the exit transition of the called Activity when reentering after if finishes.

void setAttributes(WindowManager.LayoutParams a)

Specify custom window attributes.

abstract void setBackgroundDrawable(Drawable drawable)

Change the background of this window to a custom Drawable.

void setBackgroundDrawableResource(int resId)

Change the background of this window to a Drawable resource.

void setCallback(Window.Callback callback)

Set the Callback interface for this window, used to intercept key events and other dynamic operations in the window.

abstract void setChildDrawable(int featureId, Drawable drawable)
abstract void setChildInt(int featureId, int value)
void setClipToOutline(boolean clipToOutline)

Sets whether window content should be clipped to the outline of the window background.

void setContainer(Window container)

Set the container for this window.

abstract void setContentView(View view, ViewGroup.LayoutParams params)

Set the screen content to an explicit view.

abstract void setContentView(View view)

Convenience for setContentView(View, android.view.ViewGroup.LayoutParams) set the screen content to an explicit view.

abstract void setContentView(int layoutResID)

Convenience for setContentView(View, android.view.ViewGroup.LayoutParams) to set the screen content from a layout resource.

abstract void setDecorCaptionShade(int decorCaptionShade)

Set what color should the caption controls be.

void setDimAmount(float amount)

Set the amount of dim behind the window when using FLAG_DIM_BEHIND.

void setElevation(float elevation)

Sets the window elevation.

void setEnterTransition(Transition transition)

Sets the Transition that will be used to move Views into the initial scene.

void setExitTransition(Transition transition)

Sets the Transition that will be used to move Views out of the scene when starting a new Activity.

abstract void setFeatureDrawable(int featureId, Drawable drawable)

Set an explicit Drawable value for feature of this window.

abstract void setFeatureDrawableAlpha(int featureId, int alpha)

Set a custom alpha value for the given drawable feature, controlling how much the background is visible through it.

abstract void setFeatureDrawableResource(int featureId, int resId)

Set the value for a drawable feature of this window, from a resource identifier.

abstract void setFeatureDrawableUri(int featureId, Uri uri)

Set the value for a drawable feature of this window, from a URI.

abstract void setFeatureInt(int featureId, int value)

Set the integer value for a feature.

void setFlags(int flags, int mask)

Set the flags of the window, as per the WindowManager.LayoutParams flags.

void setFormat(int format)

Set the format of window, as per the PixelFormat types.

void setGravity(int gravity)

Set the gravity of the window, as per the Gravity constants.

void setIcon(int resId)

Set the primary icon for this window.

void setLayout(int width, int height)

Set the width and height layout parameters of the window.

void setLocalFocus(boolean hasFocus, boolean inTouchMode)

Set focus locally.

void setLogo(int resId)

Set the logo for this window.

void setMediaController(MediaController controller)

Sets a MediaController to send media keys and volume changes to.

abstract void setNavigationBarColor(int color)

Sets the color of the navigation bar to .

void setReenterTransition(Transition transition)

Sets the Transition that will be used to move Views in to the scene when returning from a previously-started Activity.

abstract void setResizingCaptionDrawable(Drawable drawable)

Set the drawable that is drawn underneath the caption during the resizing.

final void setRestrictedCaptionAreaListener(Window.OnRestrictedCaptionAreaChangedListener listener)

Set a callback for changes of area where caption will draw its content.

void setReturnTransition(Transition transition)

Sets the Transition that will be used to move Views out of the scene when the Window is preparing to close, for example after a call to finishAfterTransition().

void setSharedElementEnterTransition(Transition transition)

Sets the Transition that will be used for shared elements transferred into the content Scene.

void setSharedElementExitTransition(Transition transition)

Sets the Transition that will be used for shared elements after starting a new Activity before the shared elements are transferred to the called Activity.

void setSharedElementReenterTransition(Transition transition)

Sets the Transition that will be used for shared elements reentering from a started Activity after it has returned the shared element to it start location.

void setSharedElementReturnTransition(Transition transition)

Sets the Transition that will be used for shared elements transferred back to a calling Activity.

void setSharedElementsUseOverlay(boolean sharedElementsUseOverlay)

Sets whether or not shared elements should use an Overlay during shared element transitions.

void setSoftInputMode(int mode)

Specify an explicit soft input mode to use for the window, as per WindowManager.LayoutParams.softInputMode.

abstract void setStatusBarColor(int color)

Sets the color of the status bar to color.

void setSustainedPerformanceMode(boolean enable)
abstract void setTitle(CharSequence title)
abstract void setTitleColor(int textColor)
void setTransitionBackgroundFadeDuration(long fadeDurationMillis)

Sets the duration, in milliseconds, of the window background fade when transitioning into or away from an Activity when called with an Activity Transition.

void setTransitionManager(TransitionManager tm)

Set the TransitionManager to use for default transitions in this window.

void setType(int type)

Set the type of the window, as per the WindowManager.LayoutParams types.

void setUiOptions(int uiOptions)

Set extra options that will influence the UI for this window.

void setUiOptions(int uiOptions, int mask)

Set extra options that will influence the UI for this window.

abstract void setVolumeControlStream(int streamType)
void setWindowAnimations(int resId)

Specify custom animations to use for the window, as per WindowManager.LayoutParams.windowAnimations.

void setWindowManager(WindowManager wm, IBinder appToken, String appName)

Set the window manager for use by this Window to, for example, display panels.

void setWindowManager(WindowManager wm, IBinder appToken, String appName, boolean hardwareAccelerated)

Set the window manager for use by this Window to, for example, display panels.

abstract boolean superDispatchGenericMotionEvent(MotionEvent event)

Used by custom windows, such as Dialog, to pass the generic motion event further down the view hierarchy.

abstract boolean superDispatchKeyEvent(KeyEvent event)

Used by custom windows, such as Dialog, to pass the key press event further down the view hierarchy.

abstract boolean superDispatchKeyShortcutEvent(KeyEvent event)

Used by custom windows, such as Dialog, to pass the key shortcut press event further down the view hierarchy.

abstract boolean superDispatchTouchEvent(MotionEvent event)

Used by custom windows, such as Dialog, to pass the touch screen event further down the view hierarchy.

abstract boolean superDispatchTrackballEvent(MotionEvent event)

Used by custom windows, such as Dialog, to pass the trackball event further down the view hierarchy.

abstract void takeInputQueue(InputQueue.Callback callback)

Take ownership of this window's InputQueue.

abstract void takeKeyEvents(boolean get)

Request that key events come to this activity.

abstract void takeSurface(SurfaceHolder.Callback2 callback)

Take ownership of this window's surface.

abstract void togglePanel(int featureId, KeyEvent event)

Protected methods

final int getFeatures()

Return the feature bits that are enabled.

final int getForcedWindowFlags()

Return the window flags that have been explicitly set by the client, so will not be modified by getDecorView().

final int getLocalFeatures()

Return the feature bits that are being implemented by this Window.

final boolean hasSoftInputMode()

Has the app specified their own soft input mode?

abstract void onActive()
void setDefaultWindowFormat(int format)

Set the default format of window, as per the PixelFormat types.

Inherited methods

From class java.lang.Object

XML attributes

android:windowAllowEnterTransitionOverlap

Flag indicating whether this Window's transition should overlap with the exiting transition of the calling Activity. Corresponds to setAllowEnterTransitionOverlap(boolean).

Must be a boolean value, either "true" or "false".

This may also be a reference to a resource (in the form "@[package:]type:name") or theme attribute (in the form "?[package:][type:]name") containing a value of this type.

This corresponds to the global attribute resource symbol windowAllowEnterTransitionOverlap.

Related methods:

android:windowAllowReturnTransitionOverlap

Flag indicating whether this Window's transition should overlap with the exiting transition of the called Activity when the called Activity finishes. Corresponds to setAllowReturnTransitionOverlap(boolean).

Must be a boolean value, either "true" or "false".

This may also be a reference to a resource (in the form "@[package:]type:name") or theme attribute (in the form "?[package:][type:]name") containing a value of this type.

This corresponds to the global attribute resource symbol windowAllowReturnTransitionOverlap.

Related methods:

android:windowContentTransitionManager

Reference to a TransitionManager XML resource defining the desired transitions between different window content.

Must be a reference to another resource, in the form "@[+][package:]type:name" or to a theme attribute in the form "?[package:][type:]name".

This corresponds to the global attribute resource symbol windowContentTransitionManager.

Related methods:

android:windowEnterTransition

Reference to a Transition XML resource defining the desired Transition used to move Views into the initial Window's content Scene. Corresponds to setEnterTransition(android.transition.Transition).

Must be a reference to another resource, in the form "@[+][package:]type:name" or to a theme attribute in the form "?[package:][type:]name".

This corresponds to the global attribute resource symbol windowEnterTransition.

Related methods:

android:windowExitTransition

Reference to a Transition XML resource defining the desired Transition used to move Views out of the Window's content Scene when launching a new Activity. Corresponds to setExitTransition(android.transition.Transition).

Must be a reference to another resource, in the form "@[+][package:]type:name" or to a theme attribute in the form "?[package:][type:]name".

This corresponds to the global attribute resource symbol windowExitTransition.

Related methods:

android:windowReenterTransition

Reference to a Transition XML resource defining the desired Transition used to move Views in to the scene when returning from a previously-started Activity. Corresponds to setReenterTransition(android.transition.Transition).

Must be a reference to another resource, in the form "@[+][package:]type:name" or to a theme attribute in the form "?[package:][type:]name".

This corresponds to the global attribute resource symbol windowReenterTransition.

Related methods:

android:windowReturnTransition

Reference to a Transition XML resource defining the desired Transition used to move Views out of the scene when the Window is preparing to close. Corresponds to setReturnTransition(android.transition.Transition).

Must be a reference to another resource, in the form "@[+][package:]type:name" or to a theme attribute in the form "?[package:][type:]name".

This corresponds to the global attribute resource symbol windowReturnTransition.

Related methods:

android:windowSharedElementEnterTransition

Reference to a Transition XML resource defining the desired Transition used to move shared elements transferred into the Window's initial content Scene. Corresponds to setSharedElementEnterTransition(android.transition.Transition).

Must be a reference to another resource, in the form "@[+][package:]type:name" or to a theme attribute in the form "?[package:][type:]name".

This corresponds to the global attribute resource symbol windowSharedElementEnterTransition.

Related methods:

android:windowSharedElementExitTransition

Reference to a Transition XML resource defining the desired Transition used when starting a new Activity to move shared elements prior to transferring to the called Activity. Corresponds to setSharedElementExitTransition(android.transition.Transition).

Must be a reference to another resource, in the form "@[+][package:]type:name" or to a theme attribute in the form "?[package:][type:]name".

This corresponds to the global attribute resource symbol windowSharedElementExitTransition.

Related methods:

android:windowSharedElementReenterTransition

Reference to a Transition XML resource defining the desired Transition used for shared elements transferred back to a calling Activity. Corresponds to setSharedElementReenterTransition(android.transition.Transition).

Must be a reference to another resource, in the form "@[+][package:]type:name" or to a theme attribute in the form "?[package:][type:]name".

This corresponds to the global attribute resource symbol windowSharedElementReenterTransition.

Related methods:

android:windowSharedElementReturnTransition

Reference to a Transition XML resource defining the desired Transition used to move shared elements transferred back to a calling Activity. Corresponds to setSharedElementReturnTransition(android.transition.Transition).

Must be a reference to another resource, in the form "@[+][package:]type:name" or to a theme attribute in the form "?[package:][type:]name".

This corresponds to the global attribute resource symbol windowSharedElementReturnTransition.

Related methods:

android:windowSharedElementsUseOverlay

Indicates whether or not shared elements should use an overlay during transitions. The default value is true.

Must be a boolean value, either "true" or "false".

This may also be a reference to a resource (in the form "@[package:]type:name") or theme attribute (in the form "?[package:][type:]name") containing a value of this type.

This corresponds to the global attribute resource symbol windowSharedElementsUseOverlay.

Related methods:

android:windowTransitionBackgroundFadeDuration

The duration, in milliseconds, of the window background fade duration when transitioning into or away from an Activity when called with an Activity Transition. Corresponds to setTransitionBackgroundFadeDuration(long).

Must be an integer value, such as "100".

This may also be a reference to a resource (in the form "@[package:]type:name") or theme attribute (in the form "?[package:][type:]name") containing a value of this type.

This corresponds to the global attribute resource symbol windowTransitionBackgroundFadeDuration.

Related methods:

Constants

DECOR_CAPTION_SHADE_AUTO

Added in API level 24
int DECOR_CAPTION_SHADE_AUTO

Flag for letting the theme drive the color of the window caption controls. Use with setDecorCaptionShade(int). This is the default value.

Constant Value: 0 (0x00000000)

DECOR_CAPTION_SHADE_DARK

Added in API level 24
int DECOR_CAPTION_SHADE_DARK

Flag for setting dark-color controls on the window caption. Use with setDecorCaptionShade(int).

Constant Value: 2 (0x00000002)

DECOR_CAPTION_SHADE_LIGHT

Added in API level 24
int DECOR_CAPTION_SHADE_LIGHT

Flag for setting light-color controls on the window caption. Use with setDecorCaptionShade(int).

Constant Value: 1 (0x00000001)

DEFAULT_FEATURES

Added in API level 1
int DEFAULT_FEATURES

This constant was deprecated in API level 22.
use getDefaultFeatures(android.content.Context) instead.

The default features enabled.

Constant Value: 65 (0x00000041)

FEATURE_ACTION_BAR

Added in API level 11
int FEATURE_ACTION_BAR

Flag for enabling the Action Bar. This is enabled by default for some devices. The Action Bar replaces the title bar and provides an alternate location for an on-screen menu button on some devices.

Constant Value: 8 (0x00000008)

FEATURE_ACTION_BAR_OVERLAY

Added in API level 11
int FEATURE_ACTION_BAR_OVERLAY

Flag for requesting an Action Bar that overlays window content. Normally an Action Bar will sit in the space above window content, but if this feature is requested along with FEATURE_ACTION_BAR it will be layered over the window content itself. This is useful if you would like your app to have more control over how the Action Bar is displayed, such as letting application content scroll beneath an Action Bar with a transparent background or otherwise displaying a transparent/translucent Action Bar over application content.

This mode is especially useful with View.SYSTEM_UI_FLAG_FULLSCREEN, which allows you to seamlessly hide the action bar in conjunction with other screen decorations.

As of JELLY_BEAN, when an ActionBar is in this mode it will adjust the insets provided to View.fitSystemWindows(Rect) to include the content covered by the action bar, so you can do layout within that space.

Constant Value: 9 (0x00000009)

FEATURE_ACTION_MODE_OVERLAY

Added in API level 11
int FEATURE_ACTION_MODE_OVERLAY

Flag for specifying the behavior of action modes when an Action Bar is not present. If overlay is enabled, the action mode UI will be allowed to cover existing window content.

Constant Value: 10 (0x0000000a)

FEATURE_ACTIVITY_TRANSITIONS

Added in API level 21
int FEATURE_ACTIVITY_TRANSITIONS

Enables Activities to run Activity Transitions either through sending or receiving ActivityOptions bundle created with makeSceneTransitionAnimation(android.app.Activity, android.util.Pair[]) or makeSceneTransitionAnimation(android.app.Activity, View, String).

Constant Value: 13 (0x0000000d)

FEATURE_CONTENT_TRANSITIONS

Added in API level 21
int FEATURE_CONTENT_TRANSITIONS

Flag for requesting that window content changes should be animated using a TransitionManager.

The TransitionManager is set using setTransitionManager(android.transition.TransitionManager). If none is set, a default TransitionManager will be used.

See also:

Constant Value: 12 (0x0000000c)

FEATURE_CONTEXT_MENU

Added in API level 1
int FEATURE_CONTEXT_MENU

Flag for the context menu. This is enabled by default.

Constant Value: 6 (0x00000006)

FEATURE_CUSTOM_TITLE

Added in API level 1
int FEATURE_CUSTOM_TITLE

Flag for custom title. You cannot combine this feature with other title features.

Constant Value: 7 (0x00000007)

FEATURE_INDETERMINATE_PROGRESS

Added in API level 1
int FEATURE_INDETERMINATE_PROGRESS

This constant was deprecated in API level 24.
No longer supported starting in API 21.

Flag for indeterminate progress.

Constant Value: 5 (0x00000005)

FEATURE_LEFT_ICON

Added in API level 1
int FEATURE_LEFT_ICON

Flag for having an icon on the left side of the title bar

Constant Value: 3 (0x00000003)

FEATURE_NO_TITLE

Added in API level 1
int FEATURE_NO_TITLE

Flag for the "no title" feature, turning off the title at the top of the screen.

Constant Value: 1 (0x00000001)

FEATURE_OPTIONS_PANEL

Added in API level 1
int FEATURE_OPTIONS_PANEL

Flag for the "options panel" feature. This is enabled by default.

Constant Value: 0 (0x00000000)

FEATURE_PROGRESS

Added in API level 1
int FEATURE_PROGRESS

This constant was deprecated in API level 24.
No longer supported starting in API 21.

Flag for the progress indicator feature.

Constant Value: 2 (0x00000002)

FEATURE_RIGHT_ICON

Added in API level 1
int FEATURE_RIGHT_ICON

Flag for having an icon on the right side of the title bar

Constant Value: 4 (0x00000004)

FEATURE_SWIPE_TO_DISMISS

Added in API level 20
int FEATURE_SWIPE_TO_DISMISS

Flag for requesting a decoration-free window that is dismissed by swiping from the left.

Constant Value: 11 (0x0000000b)

ID_ANDROID_CONTENT

Added in API level 1
int ID_ANDROID_CONTENT

The ID that the main layout in the XML layout file should have.

Constant Value: 16908290 (0x01020002)

NAVIGATION_BAR_BACKGROUND_TRANSITION_NAME

Added in API level 21
String NAVIGATION_BAR_BACKGROUND_TRANSITION_NAME

The transitionName for the navigation bar background View when a custom background is used.

See also:

Constant Value: "android:navigation:background"

PROGRESS_END

Added in API level 1
int PROGRESS_END

This constant was deprecated in API level 24.
FEATURE_PROGRESS and related methods are no longer supported starting in API 21.

Ending value for the (primary) progress.

Constant Value: 10000 (0x00002710)

PROGRESS_INDETERMINATE_OFF

Added in API level 1
int PROGRESS_INDETERMINATE_OFF

This constant was deprecated in API level 24.
FEATURE_INDETERMINATE_PROGRESS and related methods are no longer supported starting in API 21.

Flag for setting the progress bar's indeterminate mode off.

Constant Value: -4 (0xfffffffc)

PROGRESS_INDETERMINATE_ON

Added in API level 1
int PROGRESS_INDETERMINATE_ON

This constant was deprecated in API level 24.
FEATURE_INDETERMINATE_PROGRESS and related methods are no longer supported starting in API 21.

Flag for setting the progress bar's indeterminate mode on.

Constant Value: -3 (0xfffffffd)

PROGRESS_SECONDARY_END

Added in API level 1
int PROGRESS_SECONDARY_END

This constant was deprecated in API level 24.
FEATURE_PROGRESS and related methods are no longer supported starting in API 21.

Highest possible value for the secondary progress.

Constant Value: 30000 (0x00007530)

PROGRESS_SECONDARY_START

Added in API level 1
int PROGRESS_SECONDARY_START

This constant was deprecated in API level 24.
FEATURE_PROGRESS and related methods are no longer supported starting in API 21.

Lowest possible value for the secondary progress.

Constant Value: 20000 (0x00004e20)

PROGRESS_START

Added in API level 1
int PROGRESS_START

This constant was deprecated in API level 24.
FEATURE_PROGRESS and related methods are no longer supported starting in API 21.

Starting value for the (primary) progress.

Constant Value: 0 (0x00000000)

PROGRESS_VISIBILITY_OFF

Added in API level 1
int PROGRESS_VISIBILITY_OFF

This constant was deprecated in API level 24.
FEATURE_PROGRESS and related methods are no longer supported starting in API 21.

Flag for setting the progress bar's visibility to GONE.

Constant Value: -2 (0xfffffffe)

PROGRESS_VISIBILITY_ON

Added in API level 1
int PROGRESS_VISIBILITY_ON

This constant was deprecated in API level 24.
FEATURE_PROGRESS and related methods are no longer supported starting in API 21.

Flag for setting the progress bar's visibility to VISIBLE.

Constant Value: -1 (0xffffffff)

STATUS_BAR_BACKGROUND_TRANSITION_NAME

Added in API level 21
String STATUS_BAR_BACKGROUND_TRANSITION_NAME

The transitionName for the status bar background View when a custom background is used.

See also:

Constant Value: "android:status:background"

Public constructors

Window

Added in API level 1
Window (Context context)

Parameters
context Context

Public methods

addContentView

Added in API level 1
void addContentView (View view, 
                ViewGroup.LayoutParams params)

Variation on setContentView(View, android.view.ViewGroup.LayoutParams) to add an additional content view to the screen. Added after any existing ones in the screen -- existing views are NOT removed.

Parameters
view View: The desired content to display.
params ViewGroup.LayoutParams: Layout parameters for the view.

addFlags

Added in API level 1
void addFlags (int flags)

Convenience function to set the flag bits as specified in flags, as per setFlags(int, int).

Parameters
flags int: The flag bits to be set.

See also:

addOnFrameMetricsAvailableListener

Added in API level 24
void addOnFrameMetricsAvailableListener (Window.OnFrameMetricsAvailableListener listener, 
                Handler handler)

Set an observer to collect frame stats for each frame rendererd in this window. Must be in hardware rendering mode.

Parameters
listener Window.OnFrameMetricsAvailableListener
handler Handler

clearFlags

Added in API level 1
void clearFlags (int flags)

Convenience function to clear the flag bits as specified in flags, as per setFlags(int, int).

Parameters
flags int: The flag bits to be cleared.

See also:

closeAllPanels

Added in API level 1
void closeAllPanels ()

closePanel

Added in API level 1
void closePanel (int featureId)

Parameters
featureId int

findViewById

Added in API level 1
View findViewById (int id)

Finds a view that was identified by the id attribute from the XML that was processed in onCreate(Bundle). This will implicitly call getDecorView() for you, with all of the associated side-effects.

Parameters
id int
Returns
View The view if found or null otherwise.

getAllowEnterTransitionOverlap

Added in API level 21
boolean getAllowEnterTransitionOverlap ()

Returns how the transition set in setEnterTransition(android.transition.Transition) overlaps with the exit transition of the calling Activity. When true, the transition will start as soon as possible. When false, the transition will wait until the remote exiting transition completes before starting.

Related XML Attributes:

Returns
boolean true when the enter transition should start as soon as possible or false to when it should wait until the exiting transition completes.

getAllowReturnTransitionOverlap

Added in API level 21
boolean getAllowReturnTransitionOverlap ()

Returns how the transition set in setExitTransition(android.transition.Transition) overlaps with the exit transition of the called Activity when reentering after if finishes. When true, the transition will start as soon as possible. When false, the transition will wait until the called Activity's exiting transition completes before starting.

Related XML Attributes:

Returns
boolean true when the transition should start when possible or false when it should wait until the called Activity's exiting transition completes.

getAttributes

Added in API level 1
WindowManager.LayoutParams getAttributes ()

Retrieve the current window attributes associated with this panel.

Returns
WindowManager.LayoutParams WindowManager.LayoutParams Either the existing window attributes object, or a freshly created one if there is none.

getCallback

Added in API level 1
Window.Callback getCallback ()

Return the current Callback interface for this window.

Returns
Window.Callback

getContainer

Added in API level 1
Window getContainer ()

Return the container for this Window.

Returns
Window Window The containing window, or null if this is a top-level window.

getContentScene

Added in API level 21
Scene getContentScene ()

Retrieve the Scene representing this window's current content. Requires FEATURE_CONTENT_TRANSITIONS.

This method will return null if the current content is not represented by a Scene.

Returns
Scene Current Scene being shown or null

getContext

Added in API level 1
Context getContext ()

Return the Context this window policy is running in, for retrieving resources and other information.

Returns
Context Context The Context that was supplied to the constructor.

getCurrentFocus

Added in API level 1
View getCurrentFocus ()

Return the view in this Window that currently has focus, or null if there are none. Note that this does not look in any containing Window.

Returns
View View The current View with focus or null.

getDecorView

Added in API level 1
View getDecorView ()

Retrieve the top-level window decor view (containing the standard window frame/decorations and the client's content inside of that), which can be added as a window to the window manager.

Note that calling this function for the first time "locks in" various window characteristics as described in setContentView(View, android.view.ViewGroup.LayoutParams).

Returns
View Returns the top-level window decor view.

getDefaultFeatures

Added in API level 22
int getDefaultFeatures (Context context)

Return the feature bits set by default on a window.

Parameters
context Context: The context used to access resources
Returns
int

getEnterTransition

Added in API level 21
Transition getEnterTransition ()

Returns the transition used to move Views into the initial scene. The entering Views will be those that are regular Views or ViewGroups that have isTransitionGroup() return true. Typical Transitions will extend Visibility as entering is governed by changing visibility from INVISIBLE to VISIBLE. If transition is null, entering Views will remain unaffected. Requires FEATURE_ACTIVITY_TRANSITIONS.

Related XML Attributes:

Returns
Transition the Transition to use to move Views into the initial Scene.

getExitTransition

Added in API level 21
Transition getExitTransition ()

Returns the Transition that will be used to move Views out of the scene when starting a new Activity. The exiting Views will be those that are regular Views or ViewGroups that have isTransitionGroup() return true. Typical Transitions will extend Visibility as exiting is governed by changing visibility from VISIBLE to INVISIBLE. If transition is null, the views will remain unaffected. Requires FEATURE_ACTIVITY_TRANSITIONS.

Related XML Attributes:

Returns
Transition the Transition to use to move Views out of the scene when calling a new Activity.

getLayoutInflater

Added in API level 1
LayoutInflater getLayoutInflater ()

Quick access to the LayoutInflater instance that this Window retrieved from its Context.

Returns
LayoutInflater LayoutInflater The shared LayoutInflater.

getMediaController

Added in API level 21
MediaController getMediaController ()

Gets the MediaController that was previously set.

Returns
MediaController The controller which should receive events.

See also:

getNavigationBarColor

Added in API level 21
int getNavigationBarColor ()

Returns
int the color of the navigation bar.

getReenterTransition

Added in API level 21
Transition getReenterTransition ()

Returns the Transition that will be used to move Views in to the scene when returning from a previously-started Activity. The entering Views will be those that are regular Views or ViewGroups that have isTransitionGroup() return true. Typical Transitions will extend Visibility as exiting is governed by changing visibility from VISIBLE to INVISIBLE. Requires FEATURE_ACTIVITY_TRANSITIONS.

Related XML Attributes:

Returns
Transition The Transition to use to move Views into the scene when reentering from a previously-started Activity.

getReturnTransition

Added in API level 21
Transition getReturnTransition ()

Returns he Transition that will be used to move Views out of the scene when the Window is preparing to close, for example after a call to finishAfterTransition(). The exiting Views will be those that are regular Views or ViewGroups that have isTransitionGroup() return true. Typical Transitions will extend Visibility as entering is governed by changing visibility from VISIBLE to INVISIBLE.

Related XML Attributes:

Returns
Transition The Transition to use to move Views out of the Scene when the Window is preparing to close.

getSharedElementEnterTransition

Added in API level 21
Transition getSharedElementEnterTransition ()

Returns the Transition that will be used for shared elements transferred into the content Scene. Requires FEATURE_ACTIVITY_TRANSITIONS.

Related XML Attributes:

Returns
Transition Transition to use for sharend elements transferred into the content Scene.

getSharedElementExitTransition

Added in API level 21
Transition getSharedElementExitTransition ()

Returns the Transition to use for shared elements in the launching Window prior to transferring to the launched Activity's Window. Requires FEATURE_ACTIVITY_TRANSITIONS.

Related XML Attributes:

Returns
Transition the Transition to use for shared elements in the launching Window prior to transferring to the launched Activity's Window.

getSharedElementReenterTransition

Added in API level 21
Transition getSharedElementReenterTransition ()

Returns the Transition that will be used for shared elements reentering from a started Activity after it has returned the shared element to it start location. Requires FEATURE_ACTIVITY_TRANSITIONS.

Related XML Attributes:

Returns
Transition the Transition that will be used for shared elements reentering from a started Activity after it has returned the shared element to it start location.

getSharedElementReturnTransition

Added in API level 21
Transition getSharedElementReturnTransition ()

Returns the Transition that will be used for shared elements transferred back to a calling Activity. Requires FEATURE_ACTIVITY_TRANSITIONS.

Related XML Attributes:

Returns
Transition Transition to use for sharend elements transferred into the content Scene.

getSharedElementsUseOverlay

Added in API level 21
boolean getSharedElementsUseOverlay ()

Returns true when shared elements should use an Overlay during shared element transitions or false when they should animate as part of the normal View hierarchy. The default value is true.

Related XML Attributes:

Returns
boolean true when shared elements should use an Overlay during shared element transitions or false when they should animate as part of the normal View hierarchy.

getStatusBarColor

Added in API level 21
int getStatusBarColor ()

Returns
int the color of the status bar.

getTransitionBackgroundFadeDuration

Added in API level 21
long getTransitionBackgroundFadeDuration ()

Returns the duration, in milliseconds, of the window background fade when transitioning into or away from an Activity when called with an Activity Transition.

When executing the enter transition, the background starts transparent and fades in. This requires FEATURE_ACTIVITY_TRANSITIONS. The default is 300 milliseconds.

Related XML Attributes:

Returns
long The duration of the window background fade to opaque during enter transition.

See also:

getTransitionManager

Added in API level 21
TransitionManager getTransitionManager ()

Retrieve the TransitionManager responsible for for default transitions in this window. Requires FEATURE_CONTENT_TRANSITIONS.

This method will return non-null after content has been initialized (e.g. by using setContentView(View)) if FEATURE_CONTENT_TRANSITIONS has been granted.

Related XML Attributes:

Returns
TransitionManager This window's content TransitionManager or null if none is set.

getVolumeControlStream

Added in API level 1
int getVolumeControlStream ()

Returns
int

See also:

getWindowManager

Added in API level 1
WindowManager getWindowManager ()

Return the window manager allowing this Window to display its own windows.

Returns
WindowManager WindowManager The ViewManager.

getWindowStyle

Added in API level 1
TypedArray getWindowStyle ()

Return the Window attributes from this window's theme.

Returns
TypedArray

hasChildren

Added in API level 1
boolean hasChildren ()

Returns
boolean

hasFeature

Added in API level 11
boolean hasFeature (int feature)

Query for the availability of a certain feature.

Parameters
feature int: The feature ID to check
Returns
boolean true if the feature is enabled, false otherwise.

injectInputEvent

Added in API level 19
void injectInputEvent (InputEvent event)

Inject an event to window locally.

Parameters
event InputEvent: A key or touch event to inject to this window.

invalidatePanelMenu

Added in API level 11
void invalidatePanelMenu (int featureId)

Parameters
featureId int

isActive

Added in API level 1
boolean isActive ()

Returns
boolean

isFloating

Added in API level 1
boolean isFloating ()

Return whether this window is being displayed with a floating style (based on the windowIsFloating attribute in the style/theme).

Returns
boolean Returns true if the window is configured to be displayed floating on top of whatever is behind it.

isShortcutKey

Added in API level 1
boolean isShortcutKey (int keyCode, 
                KeyEvent event)

Is a keypress one of the defined shortcut keys for this window.

Parameters
keyCode int: the key code from KeyEvent to check.
event KeyEvent: the KeyEvent to use to help check.
Returns
boolean

makeActive

Added in API level 1
void makeActive ()

onConfigurationChanged

Added in API level 1
void onConfigurationChanged (Configuration newConfig)

Should be called when the configuration is changed.

Parameters
newConfig Configuration: The new configuration.

openPanel

Added in API level 1
void openPanel (int featureId, 
                KeyEvent event)

Parameters
featureId int
event KeyEvent

peekDecorView

Added in API level 1
View peekDecorView ()

Retrieve the current decor view, but only if it has already been created; otherwise returns null.

Returns
View Returns the top-level window decor or null.

See also:

performContextMenuIdentifierAction

Added in API level 1
boolean performContextMenuIdentifierAction (int id, 
                int flags)

Parameters
id int
flags int
Returns
boolean

performPanelIdentifierAction

Added in API level 1
boolean performPanelIdentifierAction (int featureId, 
                int id, 
                int flags)

Parameters
featureId int
id int
flags int
Returns
boolean

performPanelShortcut

Added in API level 1
boolean performPanelShortcut (int featureId, 
                int keyCode, 
                KeyEvent event, 
                int flags)

Parameters
featureId int
keyCode int
event KeyEvent
flags int
Returns
boolean

removeOnFrameMetricsAvailableListener

Added in API level 24
void removeOnFrameMetricsAvailableListener (Window.OnFrameMetricsAvailableListener listener)

Remove observer and stop listening to frame stats for this window.

Parameters
listener Window.OnFrameMetricsAvailableListener

requestFeature

Added in API level 1
boolean requestFeature (int featureId)

Enable extended screen features. This must be called before setContentView(). May be called as many times as desired as long as it is before setContentView(). If not called, no extended features will be available. You can not turn off a feature once it is requested. You canot use other title features with FEATURE_CUSTOM_TITLE.

Parameters
featureId int: The desired features, defined as constants by Window.
Returns
boolean The features that are now set.

restoreHierarchyState

Added in API level 1
void restoreHierarchyState (Bundle savedInstanceState)

Parameters
savedInstanceState Bundle

saveHierarchyState

Added in API level 1
Bundle saveHierarchyState ()

Returns
Bundle

setAllowEnterTransitionOverlap

Added in API level 21
void setAllowEnterTransitionOverlap (boolean allow)

Controls how the transition set in setEnterTransition(android.transition.Transition) overlaps with the exit transition of the calling Activity. When true, the transition will start as soon as possible. When false, the transition will wait until the remote exiting transition completes before starting.

Related XML Attributes:

Parameters
allow boolean: true to start the enter transition when possible or false to wait until the exiting transition completes.

setAllowReturnTransitionOverlap

Added in API level 21
void setAllowReturnTransitionOverlap (boolean allow)

Controls how the transition set in setExitTransition(android.transition.Transition) overlaps with the exit transition of the called Activity when reentering after if finishes. When true, the transition will start as soon as possible. When false, the transition will wait until the called Activity's exiting transition completes before starting.

Related XML Attributes:

Parameters
allow boolean: true to start the transition when possible or false to wait until the called Activity's exiting transition completes.

setAttributes

Added in API level 1
void setAttributes (WindowManager.LayoutParams a)

Specify custom window attributes. PLEASE NOTE: the layout params you give here should generally be from values previously retrieved with getAttributes(); you probably do not want to blindly create and apply your own, since this will blow away any values set by the framework that you are not interested in.

Parameters
a WindowManager.LayoutParams: The new window attributes, which will completely override any current values.

setBackgroundDrawable

Added in API level 1
void setBackgroundDrawable (Drawable drawable)

Change the background of this window to a custom Drawable. Setting the background to null will make the window be opaque. To make the window transparent, you can use an empty drawable (for instance a ColorDrawable with the color 0 or the system drawable android:drawable/empty.)

Parameters
drawable Drawable: The new Drawable to use for this window's background.

setBackgroundDrawableResource

Added in API level 1
void setBackgroundDrawableResource (int resId)

Change the background of this window to a Drawable resource. Setting the background to null will make the window be opaque. To make the window transparent, you can use an empty drawable (for instance a ColorDrawable with the color 0 or the system drawable android:drawable/empty.)

Parameters
resId int: The resource identifier of a drawable resource which will be installed as the new background.

setCallback

Added in API level 1
void setCallback (Window.Callback callback)

Set the Callback interface for this window, used to intercept key events and other dynamic operations in the window.

Parameters
callback Window.Callback: The desired Callback interface.

setChildDrawable

Added in API level 1
void setChildDrawable (int featureId, 
                Drawable drawable)

Parameters
featureId int
drawable Drawable

setChildInt

Added in API level 1
void setChildInt (int featureId, 
                int value)

Parameters
featureId int
value int

setClipToOutline

Added in API level 22
void setClipToOutline (boolean clipToOutline)

Sets whether window content should be clipped to the outline of the window background.

Parameters
clipToOutline boolean: Whether window content should be clipped to the outline of the window background.

See also:

setContainer

Added in API level 1
void setContainer (Window container)

Set the container for this window. If not set, the DecorWindow operates as a top-level window; otherwise, it negotiates with the container to display itself appropriately.

Parameters
container Window: The desired containing Window.

setContentView

Added in API level 1
void setContentView (View view, 
                ViewGroup.LayoutParams params)

Set the screen content to an explicit view. This view is placed directly into the screen's view hierarchy. It can itself be a complex view hierarchy.

Note that calling this function "locks in" various characteristics of the window that can not, from this point forward, be changed: the features that have been requested with requestFeature(int), and certain window flags as described in setFlags(int, int).

If FEATURE_CONTENT_TRANSITIONS is set, the window's TransitionManager will be used to animate content from the current content View to view.

Parameters
view View: The desired content to display.
params ViewGroup.LayoutParams: Layout parameters for the view.

See also:

setContentView

Added in API level 1
void setContentView (View view)

Convenience for setContentView(View, android.view.ViewGroup.LayoutParams) set the screen content to an explicit view. This view is placed directly into the screen's view hierarchy. It can itself be a complex view hierarhcy.

Parameters
view View: The desired content to display.

See also:

setContentView

Added in API level 1
void setContentView (int layoutResID)

Convenience for setContentView(View, android.view.ViewGroup.LayoutParams) to set the screen content from a layout resource. The resource will be inflated, adding all top-level views to the screen.

Parameters
layoutResID int: Resource ID to be inflated.

See also:

setDecorCaptionShade

Added in API level 24
void setDecorCaptionShade (int decorCaptionShade)

Set what color should the caption controls be. By default the system will try to determine the color from the theme. You can overwrite this by using DECOR_CAPTION_SHADE_DARK, DECOR_CAPTION_SHADE_LIGHT, or DECOR_CAPTION_SHADE_AUTO.

Parameters
decorCaptionShade int

See also:

setDimAmount

Added in API level 14
void setDimAmount (float amount)

Set the amount of dim behind the window when using FLAG_DIM_BEHIND. This overrides the default dim amount of that is selected by the Window based on its theme.

Parameters
amount float: The new dim amount, from 0 for no dim to 1 for full dim.

setElevation

Added in API level 22
void setElevation (float elevation)

Sets the window elevation.

Changes to this property take effect immediately and will cause the window surface to be recreated. This is an expensive operation and as a result, this property should not be animated.

Parameters
elevation float: The window elevation.

See also:

setEnterTransition

Added in API level 21
void setEnterTransition (Transition transition)

Sets the Transition that will be used to move Views into the initial scene. The entering Views will be those that are regular Views or ViewGroups that have isTransitionGroup() return true. Typical Transitions will extend Visibility as entering is governed by changing visibility from INVISIBLE to VISIBLE. If transition is null, entering Views will remain unaffected.

Related XML Attributes:

Parameters
transition Transition: The Transition to use to move Views into the initial Scene.

setExitTransition

Added in API level 21
void setExitTransition (Transition transition)

Sets the Transition that will be used to move Views out of the scene when starting a new Activity. The exiting Views will be those that are regular Views or ViewGroups that have isTransitionGroup() return true. Typical Transitions will extend Visibility as exiting is governed by changing visibility from VISIBLE to INVISIBLE. If transition is null, the views will remain unaffected. Requires FEATURE_ACTIVITY_TRANSITIONS.

Related XML Attributes:

Parameters
transition Transition: The Transition to use to move Views out of the scene when calling a new Activity.

setFeatureDrawable

Added in API level 1
void setFeatureDrawable (int featureId, 
                Drawable drawable)

Set an explicit Drawable value for feature of this window. You must have called requestFeature(featureId) before calling this function.

Parameters
featureId int: The desired drawable feature to change. Features are constants defined by Window.
drawable Drawable: A Drawable object to display.

setFeatureDrawableAlpha

Added in API level 1
void setFeatureDrawableAlpha (int featureId, 
                int alpha)

Set a custom alpha value for the given drawable feature, controlling how much the background is visible through it.

Parameters
featureId int: The desired drawable feature to change. Features are constants defined by Window.
alpha int: The alpha amount, 0 is completely transparent and 255 is completely opaque.

setFeatureDrawableResource

Added in API level 1
void setFeatureDrawableResource (int featureId, 
                int resId)

Set the value for a drawable feature of this window, from a resource identifier. You must have called requestFeature(featureId) before calling this function.

Parameters
featureId int: The desired drawable feature to change, defined as a constant by Window.
resId int: Resource identifier of the desired image.

See also:

setFeatureDrawableUri

Added in API level 1
void setFeatureDrawableUri (int featureId, 
                Uri uri)

Set the value for a drawable feature of this window, from a URI. You must have called requestFeature(featureId) before calling this function.

The only URI currently supported is "content:", specifying an image in a content provider.

Parameters
featureId int: The desired drawable feature to change. Features are constants defined by Window.
uri Uri: The desired URI.

See also:

setFeatureInt

Added in API level 1
void setFeatureInt (int featureId, 
                int value)

Set the integer value for a feature. The range of the value depends on the feature being set. For FEATURE_PROGRESS, it should go from 0 to 10000. At 10000 the progress is complete and the indicator hidden.

Parameters
featureId int: The desired feature to change. Features are constants defined by Window.
value int: The value for the feature. The interpretation of this value is feature-specific.

setFlags

Added in API level 1
void setFlags (int flags, 
                int mask)

Set the flags of the window, as per the WindowManager.LayoutParams flags.

Note that some flags must be set before the window decoration is created (by the first call to setContentView(View, android.view.ViewGroup.LayoutParams) or getDecorView(): FLAG_LAYOUT_IN_SCREEN and FLAG_LAYOUT_INSET_DECOR. These will be set for you based on the windowIsFloating attribute.

Parameters
flags int: The new window flags (see WindowManager.LayoutParams).
mask int: Which of the window flag bits to modify.

See also:

setFormat

Added in API level 1
void setFormat (int format)

Set the format of window, as per the PixelFormat types. This overrides the default format that is selected by the Window based on its window decorations.

Parameters
format int: The new window format (see PixelFormat). Use PixelFormat.UNKNOWN to allow the Window to select the format.

See also:

setGravity

Added in API level 1
void setGravity (int gravity)

Set the gravity of the window, as per the Gravity constants. This controls how the window manager is positioned in the overall window; it is only useful when using WRAP_CONTENT for the layout width or height.

Parameters
gravity int: The desired gravity constant.

See also:

setIcon

Added in API level 19
void setIcon (int resId)

Set the primary icon for this window.

Parameters
resId int: resource ID of a drawable to set

setLayout

Added in API level 1
void setLayout (int width, 
                int height)

Set the width and height layout parameters of the window. The default for both of these is MATCH_PARENT; you can change them to WRAP_CONTENT or an absolute value to make a window that is not full-screen.

Parameters
width int: The desired layout width of the window.
height int: The desired layout height of the window.

See also:

setLocalFocus

Added in API level 19
void setLocalFocus (boolean hasFocus, 
                boolean inTouchMode)

Set focus locally. The window should have the FLAG_LOCAL_FOCUS_MODE flag set already.

Parameters
hasFocus boolean: Whether this window has focus or not.
inTouchMode boolean: Whether this window is in touch mode or not.

setLogo

Added in API level 19
void setLogo (int resId)

Set the logo for this window. A logo is often shown in place of an icon but is generally wider and communicates window title information as well.

Parameters
resId int: resource ID of a drawable to set

setMediaController

Added in API level 21
void setMediaController (MediaController controller)

Sets a MediaController to send media keys and volume changes to. If set, this should be preferred for all media keys and volume requests sent to this window.

Parameters
controller MediaController: The controller for the session which should receive media keys and volume changes.

See also:

setNavigationBarColor

Added in API level 21
void setNavigationBarColor (int color)

Sets the color of the navigation bar to . For this to take effect, the window must be drawing the system bar backgrounds with FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS and FLAG_TRANSLUCENT_NAVIGATION must not be set. If is not opaque, consider setting SYSTEM_UI_FLAG_LAYOUT_STABLE and SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION.

The transitionName for the view background will be "android:navigation:background".

setReenterTransition

Added in API level 21
void setReenterTransition (Transition transition)

Sets the Transition that will be used to move Views in to the scene when returning from a previously-started Activity. The entering Views will be those that are regular Views or ViewGroups that have isTransitionGroup() return true. Typical Transitions will extend Visibility as exiting is governed by changing visibility from VISIBLE to INVISIBLE. If transition is null, the views will remain unaffected. If nothing is set, the default will be to use the same transition as setExitTransition(android.transition.Transition). Requires FEATURE_ACTIVITY_TRANSITIONS.

Related XML Attributes:

Parameters
transition Transition: The Transition to use to move Views into the scene when reentering from a previously-started Activity.

setResizingCaptionDrawable

Added in API level 24
void setResizingCaptionDrawable (Drawable drawable)

Set the drawable that is drawn underneath the caption during the resizing. During the resizing the caption might not be drawn fast enough to match the new dimensions. There is a second caption drawn underneath it that will be fast enough. By default the caption is constructed from the theme. You can provide a drawable, that will be drawn instead to better match your application.

Parameters
drawable Drawable

setRestrictedCaptionAreaListener

Added in API level 24
void setRestrictedCaptionAreaListener (Window.OnRestrictedCaptionAreaChangedListener listener)

Set a callback for changes of area where caption will draw its content.

Parameters
listener Window.OnRestrictedCaptionAreaChangedListener: Callback that will be called when the area changes.

setReturnTransition

Added in API level 21
void setReturnTransition (Transition transition)

Sets the Transition that will be used to move Views out of the scene when the Window is preparing to close, for example after a call to finishAfterTransition(). The exiting Views will be those that are regular Views or ViewGroups that have isTransitionGroup() return true. Typical Transitions will extend Visibility as entering is governed by changing visibility from VISIBLE to INVISIBLE. If transition is null, entering Views will remain unaffected. If nothing is set, the default will be to use the same value as set in setEnterTransition(android.transition.Transition).

Related XML Attributes:

Parameters
transition Transition: The Transition to use to move Views out of the Scene when the Window is preparing to close.

setSharedElementEnterTransition

Added in API level 21
void setSharedElementEnterTransition (Transition transition)

Sets the Transition that will be used for shared elements transferred into the content Scene. Typical Transitions will affect size and location, such as ChangeBounds. A null value will cause transferred shared elements to blink to the final position. Requires FEATURE_ACTIVITY_TRANSITIONS.

Related XML Attributes:

Parameters
transition Transition: The Transition to use for shared elements transferred into the content Scene.

setSharedElementExitTransition

Added in API level 21
void setSharedElementExitTransition (Transition transition)

Sets the Transition that will be used for shared elements after starting a new Activity before the shared elements are transferred to the called Activity. If the shared elements must animate during the exit transition, this Transition should be used. Upon completion, the shared elements may be transferred to the started Activity. Requires FEATURE_ACTIVITY_TRANSITIONS.

Related XML Attributes:

Parameters
transition Transition: The Transition to use for shared elements in the launching Window prior to transferring to the launched Activity's Window.

setSharedElementReenterTransition

Added in API level 21
void setSharedElementReenterTransition (Transition transition)

Sets the Transition that will be used for shared elements reentering from a started Activity after it has returned the shared element to it start location. If no value is set, this will default to setSharedElementExitTransition(android.transition.Transition). Requires FEATURE_ACTIVITY_TRANSITIONS.

Related XML Attributes:

Parameters
transition Transition: The Transition to use for shared elements in the launching Window after the shared element has returned to the Window.

setSharedElementReturnTransition

Added in API level 21
void setSharedElementReturnTransition (Transition transition)

Sets the Transition that will be used for shared elements transferred back to a calling Activity. Typical Transitions will affect size and location, such as ChangeBounds. A null value will cause transferred shared elements to blink to the final position. If no value is set, the default will be to use the same value as setSharedElementEnterTransition(android.transition.Transition). Requires FEATURE_ACTIVITY_TRANSITIONS.

Related XML Attributes:

Parameters
transition Transition: The Transition to use for shared elements transferred out of the content Scene.

setSharedElementsUseOverlay

Added in API level 21
void setSharedElementsUseOverlay (boolean sharedElementsUseOverlay)

Sets whether or not shared elements should use an Overlay during shared element transitions. The default value is true.

Related XML Attributes:

Parameters
sharedElementsUseOverlay boolean: true indicates that shared elements should be transitioned with an Overlay or false to transition within the normal View hierarchy.

setSoftInputMode

Added in API level 3
void setSoftInputMode (int mode)

Specify an explicit soft input mode to use for the window, as per WindowManager.LayoutParams.softInputMode. Providing anything besides "unspecified" here will override the input mode the window would normally retrieve from its theme.

Parameters
mode int

setStatusBarColor

Added in API level 21
void setStatusBarColor (int color)

Sets the color of the status bar to color. For this to take effect, the window must be drawing the system bar backgrounds with FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS and FLAG_TRANSLUCENT_STATUS must not be set. If color is not opaque, consider setting SYSTEM_UI_FLAG_LAYOUT_STABLE and SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN.

The transitionName for the view background will be "android:status:background".

Parameters
color int

setSustainedPerformanceMode

Added in API level 24
void setSustainedPerformanceMode (boolean enable)

Parameters
enable boolean

setTitle

Added in API level 1
void setTitle (CharSequence title)

Parameters
title CharSequence

setTitleColor

Added in API level 1
void setTitleColor (int textColor)

Parameters
textColor int

setTransitionBackgroundFadeDuration

Added in API level 21
void setTransitionBackgroundFadeDuration (long fadeDurationMillis)

Sets the duration, in milliseconds, of the window background fade when transitioning into or away from an Activity when called with an Activity Transition.

When executing the enter transition, the background starts transparent and fades in. This requires FEATURE_ACTIVITY_TRANSITIONS. The default is 300 milliseconds.

Related XML Attributes:

Parameters
fadeDurationMillis long: The duration of the window background fade to or from opaque during enter transition.

See also:

setTransitionManager

Added in API level 21
void setTransitionManager (TransitionManager tm)

Set the TransitionManager to use for default transitions in this window. Requires FEATURE_CONTENT_TRANSITIONS.

Related XML Attributes:

Parameters
tm TransitionManager: The TransitionManager to use for scene changes.

setType

Added in API level 1
void setType (int type)

Set the type of the window, as per the WindowManager.LayoutParams types.

Parameters
type int: The new window type (see WindowManager.LayoutParams).

setUiOptions

Added in API level 14
void setUiOptions (int uiOptions)

Set extra options that will influence the UI for this window.

Parameters
uiOptions int: Flags specifying extra options for this window.

setUiOptions

Added in API level 14
void setUiOptions (int uiOptions, 
                int mask)

Set extra options that will influence the UI for this window. Only the bits filtered by mask will be modified.

Parameters
uiOptions int: Flags specifying extra options for this window.
mask int: Flags specifying which options should be modified. Others will remain unchanged.

setVolumeControlStream

Added in API level 1
void setVolumeControlStream (int streamType)

Parameters
streamType int

See also:

setWindowAnimations

Added in API level 3
void setWindowAnimations (int resId)

Specify custom animations to use for the window, as per WindowManager.LayoutParams.windowAnimations. Providing anything besides 0 here will override the animations the window would normally retrieve from its theme.

Parameters
resId int

setWindowManager

Added in API level 1
void setWindowManager (WindowManager wm, 
                IBinder appToken, 
                String appName)

Set the window manager for use by this Window to, for example, display panels. This is not used for displaying the Window itself -- that must be done by the client.

Parameters
wm WindowManager: The window manager for adding new windows.
appToken IBinder
appName String

setWindowManager

Added in API level 11
void setWindowManager (WindowManager wm, 
                IBinder appToken, 
                String appName, 
                boolean hardwareAccelerated)

Set the window manager for use by this Window to, for example, display panels. This is not used for displaying the Window itself -- that must be done by the client.

Parameters
wm WindowManager: The window manager for adding new windows.
appToken IBinder
appName String
hardwareAccelerated boolean

superDispatchGenericMotionEvent

Added in API level 12
boolean superDispatchGenericMotionEvent (MotionEvent event)

Used by custom windows, such as Dialog, to pass the generic motion event further down the view hierarchy. Application developers should not need to implement or call this.

Parameters
event MotionEvent
Returns
boolean

superDispatchKeyEvent

Added in API level 1
boolean superDispatchKeyEvent (KeyEvent event)

Used by custom windows, such as Dialog, to pass the key press event further down the view hierarchy. Application developers should not need to implement or call this.

Parameters
event KeyEvent
Returns
boolean

superDispatchKeyShortcutEvent

Added in API level 11
boolean superDispatchKeyShortcutEvent (KeyEvent event)

Used by custom windows, such as Dialog, to pass the key shortcut press event further down the view hierarchy. Application developers should not need to implement or call this.

Parameters
event KeyEvent
Returns
boolean

superDispatchTouchEvent

Added in API level 1
boolean superDispatchTouchEvent (MotionEvent event)

Used by custom windows, such as Dialog, to pass the touch screen event further down the view hierarchy. Application developers should not need to implement or call this.

Parameters
event MotionEvent
Returns
boolean

superDispatchTrackballEvent

Added in API level 1
boolean superDispatchTrackballEvent (MotionEvent event)

Used by custom windows, such as Dialog, to pass the trackball event further down the view hierarchy. Application developers should not need to implement or call this.

Parameters
event MotionEvent
Returns
boolean

takeInputQueue

Added in API level 9
void takeInputQueue (InputQueue.Callback callback)

Take ownership of this window's InputQueue. The window will no longer read and dispatch input events from the queue; it is your responsibility to do so.

Parameters
callback InputQueue.Callback

takeKeyEvents

Added in API level 1
void takeKeyEvents (boolean get)

Request that key events come to this activity. Use this if your activity has no views with focus, but the activity still wants a chance to process key events.

Parameters
get boolean

takeSurface

Added in API level 9
void takeSurface (SurfaceHolder.Callback2 callback)

Take ownership of this window's surface. The window's view hierarchy will no longer draw into the surface, though it will otherwise continue to operate (such as for receiving input events). The given SurfaceHolder callback will be used to tell you about state changes to the surface.

Parameters
callback SurfaceHolder.Callback2

togglePanel

Added in API level 1
void togglePanel (int featureId, 
                KeyEvent event)

Parameters
featureId int
event KeyEvent

Protected methods

getFeatures

Added in API level 1
int getFeatures ()

Return the feature bits that are enabled. This is the set of features that were given to requestFeature(), and are being handled by this Window itself or its container. That is, it is the set of requested features that you can actually use.

To do: add a public version of this API that allows you to check for features by their feature ID.

Returns
int int The feature bits.

getForcedWindowFlags

Added in API level 1
int getForcedWindowFlags ()

Return the window flags that have been explicitly set by the client, so will not be modified by getDecorView().

Returns
int

getLocalFeatures

Added in API level 1
int getLocalFeatures ()

Return the feature bits that are being implemented by this Window. This is the set of features that were given to requestFeature(), and are being handled by only this Window itself, not by its containers.

Returns
int int The feature bits.

hasSoftInputMode

Added in API level 3
boolean hasSoftInputMode ()

Has the app specified their own soft input mode?

Returns
boolean

onActive

Added in API level 1
void onActive ()

setDefaultWindowFormat

Added in API level 1
void setDefaultWindowFormat (int format)

Set the default format of window, as per the PixelFormat types. This is the format that will be used unless the client specifies in explicit format with setFormat();

Parameters
format int: The new window format (see PixelFormat).

See also:

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