Swift version: 5.6
There are lots of CALayer
subclasses out there, but CAShapeLayer
is one of my favorites: it provides hardware-accelerated drawing of all sorts of 2D shapes, and includes extra functionality such as fill and stroke colors, line caps, patterns and more.
To get you started, this uses UIBezierPath
to create a rounded rectangle, which is then colored red using CAShaperLayer
. Remember, CALayer
sits underneath UIKit, so you need to use CGColor
rather than UIColor
.
let layer = CAShapeLayer()
layer.path = UIBezierPath(roundedRect: CGRect(x: 64, y: 64, width: 160, height: 160), cornerRadius: 50).cgPath
layer.fillColor = UIColor.red.cgColor
view.layer.addSublayer(layer)
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