Swift version: 5.2
UIView subclasses have a built-in way to draw a border around them using their underlying
CALayer. For example, to draw a 10-point red border around a view, you'd use this:
yourView.layer.borderWidth = 10 yourView.layer.borderColor = UIColor.red.cgColor
Note that you need to use the
cgColor property of your
UIColor in order for this to work. Adding a border to a view even works if you also round the corners of your view – it's very flexible!
SPONSORED Announcing NSSpain 2020: Remote Edition! An online, continuous conference for iOS developers. We’ll start on Thursday and finish on Friday, with talks, activities, and lots of fun for 36 hours, non-stop. Sound good? Join us!
Available from iOS 3.2
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.
Link copied to your pasteboard.