swift - 每个角都有不同的 CornerRadius 到 Border

Question

我尝试为 View 的角提供不同大小的角。首先，我将角指定为最小半径的所有角，然后尝试将左侧的 2 个角更改为更大的尺寸。

enter image description here

func roundCorners(_ corners:UIRectCorner,_ cormerMask:CACornerMask, radius: CGFloat) {
    if #available(iOS 11.0, *){
        self.clipsToBounds = false
        self.layer.cornerRadius = radius
        self.layer.maskedCorners = cormerMask
    }else{
        let rectShape = CAShapeLayer()
        rectShape.bounds = self.frame
        rectShape.position = self.center
        rectShape.path = UIBezierPath(roundedRect: self.bounds,    byRoundingCorners: corners, cornerRadii: CGSize(width: radius, height: radius)).cgPath
        self.layer.mask = rectShape
    }
}

//

viewMoreView.roundCorners(.bottomLeft, [.layerMinXMinYCorner , .layerMinXMaxYCorner], radius: 13)
viewMoreView.layer.borderWidth = 1
viewMoreView.layer.borderColor = UIColor(red:0.81, green:0.83, blue:0.83, alpha:1).cgColor
viewMoreView.clipsToBounds = true

此代码更改左侧，但右侧的所有更改(半径)均被删除。

通过下面的链接，borderRadius 看起来与这张图片不太一样!!!

enter image description here

Different cornerRadius for each corner Swift 3 - iOS

Answer 1

我知道这是解决此问题的快捷方式

    let demoView = UIView(frame: CGRect(x: 0, y: 0, width: vieww.bounds.width, height: vieww.bounds.height))
    demoView.backgroundColor = UIColor.lightGray
    demoView.layer.cornerRadius = 3.0

    let maskPath = UIBezierPath(roundedRect: demoView.bounds,
                                byRoundingCorners: [.topLeft, .bottomLeft],
                                cornerRadii: CGSize(width: 64.0, height: 0.0))

    let maskLayer = CAShapeLayer()
    maskLayer.path = maskPath.cgPath
    demoView.layer.mask = maskLayer

    vieww.addSubview(demoView)

    let demoViewInner = UIView(frame: CGRect(x: 2, y: 2, width: demoView.bounds.width-4, height: demoView.bounds.height-4))
    demoViewInner.backgroundColor = UIColor.white
    demoViewInner.layer.cornerRadius = 3.0

    let maskPathInner = UIBezierPath(roundedRect: demoViewInner.bounds,
                                byRoundingCorners: [.topLeft, .bottomLeft],
                                cornerRadii: CGSize(width: 60.0, height: 0.0))

    let maskLayerInner = CAShapeLayer()
    maskLayerInner.path = maskPathInner.cgPath
    demoViewInner.layer.mask = maskLayerInner

    demoView.addSubview(demoViewInner)

但是添加内部 View 看起来也是一个解决方案。图层 reshape 后，添加边框可能不是正确的方法。