So erstellen Sie Ovalin mit gestrichelten Rand in Uibezierpath
class DashedCircleView: UIView {
private var shapeLayer: CAShapeLayer = {
let shapeLayer = CAShapeLayer()
shapeLayer.strokeColor = UIColor.red.cgColor
shapeLayer.fillColor = UIColor.clear.cgColor
shapeLayer.lineWidth = 10
shapeLayer.lineCap = .round
shapeLayer.lineDashPattern = [20, 60]
return shapeLayer
}()
override init(frame: CGRect = .zero) {
super.init(frame: frame)
configure()
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
configure()
}
override func layoutSubviews() {
super.layoutSubviews()
updatePath()
}
}
private extension DashedCircleView {
func configure() {
layer.addSublayer(shapeLayer)
}
func updatePath() {
let rect = bounds.insetBy(dx: shapeLayer.lineWidth / 2, dy: shapeLayer.lineWidth / 2)
let radius = min(rect.width, rect.height) / 2
let center = CGPoint(x: rect.midX, y: rect.midY)
let path = UIBezierPath(arcCenter: center, radius: radius, startAngle: 0, endAngle: .pi * 2, clockwise: true)
shapeLayer.path = path.cgPath
}
}
Successful Sandpiper