Android
android.view
public static interface

android.view.ViewTreeObserver.OnPreDrawListener

android.view.ViewTreeObserver.OnPreDrawListener

Interface definition for a callback to be invoked when the view tree is about to be drawn.

Known Indirect Subclasses

Summary

Public Methods

          boolean  onPreDraw()
Callback method to be invoked when the view tree is about to be drawn.

Details

Public Methods

public boolean onPreDraw()

Callback method to be invoked when the view tree is about to be drawn. At this point, all views in the tree have been measured and given a frame. Clients can use this to adjust their scroll bounds or even to request a new layout before drawing occurs.

Returns

  • Return true to proceed with the current drawing pass, or false to cancel.
Copyright 2007 Google Inc. Build 0.9_r1-98467 - 14 Aug 2008 18:48