How to erase piece of UIImageView with png-brush and UIBezierPath

Question

I have two UIImageView, first above second. I want to erase piece of the first image with brush (brush is a png picture with soft edge) to make piece of the second image vis

Answer 1

There is an open source project which will be useful for you .. iOS-Scratch-n-See. Class ImageMaskView will be interesting to study.

Hope that helps!