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

You should look at Apple's MoveMe example for how to move around a layer based on touch. It also applies some scaling transforms as you do it, so that should serve as a reasonable example of to apply rotation transforms.