ViewGroup.OnHierarchyChangeListener

Kotlin |Java

public static interface ViewGroup.OnHierarchyChangeListener

android.view.ViewGroup.OnHierarchyChangeListener

Known indirect subclasses

WebView A View that displays web pages.

Interface definition for a callback to be invoked when the hierarchy within this view changed. The hierarchy changes whenever a child is added to or removed from this view.

Summary

Public methods
`abstract void`	`onChildViewAdded(View parent, View child)` Called when a new child is added to a parent view.
`abstract void`	`onChildViewRemoved(View parent, View child)` Called when a child is removed from a parent view.

Public methods

onChildViewAdded

Added in API level 1

public abstract void onChildViewAdded (View parent, 
                View child)

Called when a new child is added to a parent view.

Parameters
`parent`	`View`: the view in which a child was added
`child`	`View`: the new child view added in the hierarchy

onChildViewRemoved

Added in API level 1

public abstract void onChildViewRemoved (View parent, 
                View child)

Called when a child is removed from a parent view.

Parameters
`parent`	`View`: the view from which the child was removed
`child`	`View`: the child removed from the hierarchy