Android SurfaceHolder.unlockCanvasAndPost() does not cause redraw

Question

I\'m implementing a fairly standard app with the Android sdk that involves drawing using the SurfaceView, SurfaceHolder, Callback setup.

In my main thread (UI thread) I

Answer 1

This is old, but I have a feeling the problem is there is no surfaceholder callback. He was trying to draw on the surface before the surface was created