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Android APIs
public static abstract class

WindowId.FocusObserver

extends Object
java.lang.Object
   ↳ android.view.WindowId.FocusObserver

Class Overview

Subclass for observing changes to the focus state of an WindowId . You should use the same instance of this class for observing multiple WindowId objects, since this class is fairly heavy-weight -- the base class includes all of the mechanisms for connecting to and receiving updates from the window.

Summary

Public Constructors
WindowId.FocusObserver ()
Construct a new observer.
Public Methods
abstract void onFocusGained ( WindowId token)
Called when one of the monitored windows gains input focus.
abstract void onFocusLost ( WindowId token)
Called when one of the monitored windows loses input focus.
[Expand]
Inherited Methods
From class java.lang.Object

Public Constructors

public WindowId.FocusObserver ()

Construct a new observer. This observer will be configured so that all of its callbacks are dispatched on the current calling thread.

Public Methods

public abstract void onFocusGained ( WindowId token)

Called when one of the monitored windows gains input focus.

public abstract void onFocusLost ( WindowId token)

Called when one of the monitored windows loses input focus.