OnGlobalFocusChangeListener

Kotlin |Java

interface OnGlobalFocusChangeListener

android.view.ViewTreeObserver.OnGlobalFocusChangeListener

Known Direct Subclasses

WebView

A View that displays web pages.

Interface definition for a callback to be invoked when the focus state within the view tree changes.

Summary

Public methods
abstract Unit	`onGlobalFocusChanged(oldFocus: View!, newFocus: View!)` Callback method to be invoked when the focus changes in the view tree.

Public methods

onGlobalFocusChanged

Added in API level 1

abstract fun onGlobalFocusChanged(
    oldFocus: View!, 
    newFocus: View!
): Unit

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.