将UILabel蒙版添加到UIVisualEffectView

Question

I have an UIImageView , UIVisualEffectView , and an UILabel on my ViewController . The UIVisualEffectView blurs the UIImageView behind it. I would like to mask the UIVisualEffectView with the text of the UILabel . Like this image:

How would I do this? I'm using Swift.

Answer 1

You need to assign your UILabel as maskView of your UIVisualEfectView and the trick is that you need add a container for your UIVisualEfectView and your UILabel and set the background color for this container view as UIColor.clear

self.visualEfectView.mask = self.label
self.visualEfectView.layer.masksToBounds = true

View Hierarchy Setup

Result