Scene.onDraw() - Wrong call order of window.onUpdate() and background.onDraw()

[GoogleCodeExporter]

Noticed a bug in my custom scrolling tiled background class.
If the scene.window is moving then black borders can appear due to the 
background class has finished rendering on the last scene.window position but 
the scene.window position will then be updated straight after the draw.

Solution, change the call ordering of the window.OnUpdate() and 
background.onDraw() in the scene class, OnDraw() function.  The viewport 
(window.update()) should be set before any rendering occurs.

Rokon version - 2.0.3
Android version - 1.6 through 2.2

Original issue reported on code.google.com by [email protected] on 8 Oct 2010 at 10:11