Added in API level 1
OnHierarchyChangeListener
interface OnHierarchyChangeListener
| android.view.ViewGroup.OnHierarchyChangeListener |
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 Unit |
onChildViewAdded(parent: View!, child: View!)Called when a new child is added to a parent view. |
| abstract Unit |
onChildViewRemoved(parent: View!, child: View!)Called when a child is removed from a parent view. |
Public methods
onChildViewAdded
Added in API level 1
abstract fun onChildViewAdded(
parent: View!,
child: View!
): Unit
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
abstract fun onChildViewRemoved(
parent: View!,
child: View!
): Unit
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 |