Masking a CALayer with another CALayer

Question

I\'m trying to make a donut shape with CALayers. One CALayer will be a large circle, the other one will be a smaller circle positioned in its center, masking it.

The la

Answer 1

I succeeded with a CAShapeLayer masking a CALayer. To specify the shape of the masking CAShapeLayer I used UIBezierPath.

I posted the code in my answer to this question: How to Get the reverse path of a UIBezierPath. For the donut shape uncomment the commented line.