Adding a mask with CALayers

Question

I seem to be having difficulties adding a mask via CALayers. I\'m simply trying to mask a UIImageView. Here\'s my code:

 CALayer *maskLayer = [CALayer layer];
 U         


        

Answer 1

Try

maskLayer.contents = (id)mask.CGImage;

Yes, the cast sucks, but it's necessary.

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I think you'll also need to say

maskLayer.bounds = (CGRect){CGPointZero, mask.size};