Summary: Methods | Inherited Methods

ExtensionWindowBackend

Kotlin |Java

public final class ExtensionWindowBackend
extends Object implements WindowBackend

java.lang.Object
↳	androidx.window.ExtensionWindowBackend

Default implementation of WindowBackend that uses a combination of platform APIs and device-dependent OEM extensions.

Summary

Public methods
`DeviceState`	`getDeviceState()` Get the current device state.
`static ExtensionWindowBackend`	`getInstance(Context context)` Get the shared instance of the class.
`WindowLayoutInfo`	`getWindowLayoutInfo(Context context)` Get current window layout information for the provided `Context`.
`void`	`registerDeviceStateChangeCallback(Executor executor, Consumer<DeviceState> callback)` Register a callback for device state changes.
`void`	`registerLayoutChangeCallback(Context context, Executor executor, Consumer<WindowLayoutInfo> callback)` Register a callback for layout changes of the window of the current visual `Context`.
`void`	`unregisterDeviceStateChangeCallback(Consumer<DeviceState> callback)` Unregister a callback for device state changes.
`void`	`unregisterLayoutChangeCallback(Consumer<WindowLayoutInfo> callback)` Unregister a callback for window layout changes of the `Context` window.

Inherited methods

From class


        
          java.lang.Object

`Object`	`clone()`
`boolean`	`equals(Object arg0)`
`void`	`finalize()`
`final Class<?>`	`getClass()`
`int`	`hashCode()`
`final void`	`notify()`
`final void`	`notifyAll()`
`String`	`toString()`
`final void`	`wait(long arg0, int arg1)`
`final void`	`wait(long arg0)`
`final void`	`wait()`

From interface


        
          androidx.window.WindowBackend

`abstract DeviceState`	`getDeviceState()` Get the current device state.
`abstract WindowLayoutInfo`	`getWindowLayoutInfo(Context context)` Get current window layout information for the provided `Context`.
`abstract void`	`registerDeviceStateChangeCallback(Executor executor, Consumer<DeviceState> callback)` Register a callback for device state changes.
`abstract void`	`registerLayoutChangeCallback(Context context, Executor executor, Consumer<WindowLayoutInfo> callback)` Register a callback for layout changes of the window of the current visual `Context`.
`abstract void`	`unregisterDeviceStateChangeCallback(Consumer<DeviceState> callback)` Unregister a callback for device state changes.
`abstract void`	`unregisterLayoutChangeCallback(Consumer<WindowLayoutInfo> callback)` Unregister a callback for window layout changes of the `Context` window.

Public methods

getDeviceState

public DeviceState getDeviceState ()

Get the current device state.

Returns
`DeviceState`

getInstance

public static ExtensionWindowBackend getInstance (Context context)

Get the shared instance of the class.

Parameters
`context`	`Context`

Returns
`ExtensionWindowBackend`

getWindowLayoutInfo

public WindowLayoutInfo getWindowLayoutInfo (Context context)

Get current window layout information for the provided Context. Must be called only after the it is attached to the window and the layout pass has happened.

Parameters
`context`	`Context`

Returns
`WindowLayoutInfo`

registerDeviceStateChangeCallback

public void registerDeviceStateChangeCallback (Executor executor, 
                Consumer<DeviceState> callback)

Parameters
`executor`	`Executor`
`callback`	`Consumer`

registerLayoutChangeCallback

public void registerLayoutChangeCallback (Context context, 
                Executor executor, 
                Consumer<WindowLayoutInfo> callback)

Register a callback for layout changes of the window of the current visual Context. Must be called only after the it is attached to the window.

Parameters
`context`	`Context`
`executor`	`Executor`
`callback`	`Consumer`

unregisterDeviceStateChangeCallback

public void unregisterDeviceStateChangeCallback (Consumer<DeviceState> callback)

Unregister a callback for device state changes.

Parameters
`callback`	`Consumer`

unregisterLayoutChangeCallback

public void unregisterLayoutChangeCallback (Consumer<WindowLayoutInfo> callback)

Unregister a callback for window layout changes of the Context window.

Parameters
`callback`	`Consumer`