I\'ve built a simple music player in Android. The view for each song contains a SeekBar, implemented like this:
public class Song extends Activity implement
If you simply want to invalidate (call repaint/redraw function) from your non UI Thread, use postInvalidate()
myView.postInvalidate();
This will post an invalidate request on the UI-thread.
For more information : what-does-postinvalidate-do