extension UIView{
//MARK:- 绘制虚线
func drawDashLine(_ lineView:UIView,strokeColor: UIColor, lineWidth: CGFloat = 1, lineLength: Int = 10, lineSpacing: Int = 5) {
let shapeLayer = CAShapeLayer()
shapeLayer.bounds = lineView.bounds
shapeLayer.anchorPoint = CGPoint(x: 0, y: 0)
shapeLayer.fillColor = UIColor.blue.cgColor
shapeLayer.strokeColor = strokeColor.cgColor
shapeLayer.lineWidth = lineWidth
shapeLayer.lineJoin = CAShapeLayerLineJoin.round
//每一段虚线长度 和 每两段虚线之间的间隔
shapeLayer.lineDashPattern = [NSNumber(value: lineLength), NSNumber(value: lineSpacing)]
let path = CGMutablePath()
// let y = lineView.layer.bounds.height - lineWidth
let x = lineView.layer.bounds.width - lineWidth
path.move(to: CGPoint(x: x, y: 0))
path.addLine(to: CGPoint(x: x, y: lineView.layer.bounds.height))
shapeLayer.path = path
lineView.layer.addSublayer(shapeLayer)
}
}
Swift绘制虚线
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