How to round only specific corners using maskedCorners
Swift version: 5.4
You can set the cornerRadius property of any UIView to have its edges rounded, but by default that rounds all corners at the same time. If you want only some corners to be rounded, you should set the layer’s maskedCorners property to be an array of the corners you want – it’s an option set, so you can set one or many depending on your needs.
For example, this code rounds the top-left and bottom-right corners of a view, leaving the other two square:
let redBox = UIView(frame: CGRect(x: 100, y: 100, width: 128, height: 128))
redBox.backgroundColor = .red
redBox.layer.cornerRadius = 25
redBox.layer.maskedCorners = [.layerMinXMinYCorner, .layerMaxXMaxYCorner]
view.addSubview(redBox)
SPONSORED From August 2nd to 8th you can join a FREE crash course for mid/senior iOS devs who want to achieve an expert level of technical and practical skills – it’s the fast track to being a complete senior developer!
Sponsor Hacking with Swift and reach the world's largest Swift community!
Available from iOS 11.0
Similar solutions…
- How to round the corners of a view
- How to round the corners of a UIView
- Fixing "Ambiguous reference to member when using ceil or round"
- How to clip a view so only part is visible
- How to fix the error “protocol can only be used as a generic constraint because it has Self or associated type requirements”
About the Swift Knowledge Base
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.
