How to paste stuff over a camera preview on Android?

I am making the classic AR app for Android.

I am using a SurfaceView to show the camera.

I want to know, how I put things over it... Currently I am using widgets, but they have two issues:

First, they are slow. Second, you cannot rotate them in 1.5 without using view animation, and noone I asked so far (here, forums, google, irc...) knows how view animation work, so I am failing to make the view animation work in sync with the custom view that put widgets over the camera (resulting in flickering).

Thu开发者_如何学Pythons I decided to change the method of putting things on the screen, so what other ways exist? (note I am bound to Android 1.5)

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Seemly it cannot be done easily, but I could put a image and rotate it easily using Matrix.

I basically placed on layout over the preview a ImageView, then I used setMatrix to a rotation matrix, and voilá, I got a rotated image that works in 1.5

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You must use OpenGL for drawing Objects over your SurfaceView.