Added in API level 34
  
  
  
  
ViewTreeObserver.OnWindowVisibilityChangeListener
  public
  static
  
  
  interface
  ViewTreeObserver.OnWindowVisibilityChangeListener
  
  
  
| android.view.ViewTreeObserver.OnWindowVisibilityChangeListener | 
Interface definition for a callback to be invoked when the view hierarchy's window visibility changes.
Summary
| Public methods | |
|---|---|
| 
        abstract
        
        
        
        
        void | 
      onWindowVisibilityChanged(int visibility)
      Callback method to be invoked when the window visibility changes in the view tree. | 
Public methods
onWindowVisibilityChanged
    Added in API level 34
  
      
  
    public abstract void onWindowVisibilityChanged (int visibility)
Callback method to be invoked when the window visibility changes in the view tree.
| Parameters | |
|---|---|
| visibility | int: The new visibility of the window.
 Value isView.VISIBLE,View.INVISIBLE, orView.GONE | 
