Swift UIView绘制对角线一侧和圆角

Question

我正在画一些斜边的视图

像这样：

代码：

    let layerWidth = layer.frame.width
    let bezierPath = UIBezierPath()
    let pointA = CGPoint(x: 0, y: 44)
    let pointB = CGPoint(x: 150, y: 0)
    let pointC = CGPoint(x: layerWidth, y: 0)
    let pointD = CGPoint(x: layerWidth, y:44)
    bezierPath.move(to: CGPoint(x: pointA.x, y: pointA.y) )
    bezierPath.addLine(to: CGPoint(x: pointB.x, y: pointB.y))
    bezierPath.addLine(to: pointC)
    bezierPath.addLine(to: pointD)
    bezierPath.close()
    let shapeLayer = CAShapeLayer()
    shapeLayer.path = bezierPath.cgPath
    layer.addSublayer(shapeLayer)

如你所见，一切都很好，但我想把角弄圆

像这样：

我怎样才能达到这个结果？

添加：收到结果后，我想将此表单设置为另一个视图的遮罩，但有一个问题：第二个视图有边框，如果我设置自己的表单，我会丢失部分边框

代码：

layer.mask = shapeLayer

错误结果：

Answer 1

Okey im founded way -

只要写4点就好：

        let grayPath = UIBezierPath()
        addArcs(
            to: grayPath,
            pointsAndRadii: [
                (point: CGPoint(x: 0, y: 0), radius: 2),
                (point: CGPoint(x: self.bounds.width - 104, y: 0), radius: 10),
                (point: CGPoint(x: self.bounds.width, y: self.bounds.height), radius: 2),
                (point: CGPoint(x: 104, y: self.bounds.height), radius: 6),
            ])
        grayPath.close()

下一组掩码：

let shapeLayer = CAShapeLayer()
shapeLayer.path = grayPath.cgPath
layer.mask = shapeLayer

如果你有更高效的方式或者更好的性能，写出来)

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