public
static
interface
ViewTreeObserver.OnGlobalFocusChangeListener
| 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 | |
|---|---|
abstract
void
|
onGlobalFocusChanged(View oldFocus, View newFocus)
Callback method to be invoked when the focus changes in the view tree. |
void onGlobalFocusChanged (View oldFocus, View newFocus)
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.
| Parameters | |
|---|---|
oldFocus |
View:
The previously focused view, if any. |
newFocus |
View:
The newly focused View, if any.
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