Simply mask a UIView with a rectangle

Question

I want to know how to simply mask the visible area of a UIView of any kind. All the answers/tutorials I\'ve read so far describe masking with an image, gradient or creating

Answer 1

An optional layer whose alpha channel is used as a mask to select between the layer's background and the result of compositing the layer's contents with its filtered background.

@property(retain) CALayer *mask

The correct way to do what you want is to create the maskView of the same frame (0, 0, 100, 100) as the viewToMask which layer you want to mask. Then you need to set the clearColor for the path you want to make invisible (this will block the view interaction over the path so be careful with the view hierarchy).