android.view.ViewTreeObserver.OnGlobalFocusChangeListener |
Known Indirect Subclasses |
Interface definition for a callback to be invoked when the focus state within the view tree changes.
Public Methods | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
|
Callback method to be invoked when the focus changes in the view tree.
|
Callback method to be invoked when the focus changes in the view tree. When the view tree transitions from touch mode to non-touch mode, oldFocus is null. When the view tree transitions from non-touch mode to touch mode, newFocus is null. When focus changes in non-touch mode (without transition from or to touch mode) either oldFocus or newFocus can be null.
oldFocus | The previously focused view, if any. |
---|---|
newFocus | The newly focused View, if any. |