How to “rotate” a layer/view (e.g. just like you would in enigmo)

Question

I know how to move a layer based on touch. But I would also like to be able to rotate the image.

Is there any sample code that shows how to do this? Or can anyone give

Answer 1

I ended up doing it like this:

CGAffineTransform transform = CGAffineTransformMakeRotation(angle);
[[self viewWithTag:999] setTransform:transform];

Note that the angle is in radians.