how to set cornerRadius for only bottom-left,bottom-right and top-left corner textview?

Question

How to set corner radius only only bottom-left,bottom-right and top-left corner textview?

let rectShape = CAShapeLayer()
    rectShape.backgroundColor = UICo         


        

Answer 1

The best solution I could come up with all of the above solution is this.

extension UIView {
    func roundCorners(_ corners: UIRectCorner, radius: CGFloat) {
        if #available(iOS 11, *) {
            var cornerMask = CACornerMask()
            if(corners.contains(.topLeft)){
                cornerMask.insert(.layerMinXMinYCorner)
            }
            if(corners.contains(.topRight)){
                cornerMask.insert(.layerMaxXMinYCorner)
            }
            if(corners.contains(.bottomLeft)){
                cornerMask.insert(.layerMinXMaxYCorner)
            }
            if(corners.contains(.bottomRight)){
                cornerMask.insert(.layerMaxXMaxYCorner)
            }
            self.layer.cornerRadius = radius
            self.layer.maskedCorners = cornerMask

        } else {
            let path = UIBezierPath(roundedRect: self.bounds, byRoundingCorners: corners, cornerRadii: CGSize(width: radius, height: radius))
            let mask = CAShapeLayer()
            mask.path = path.cgPath
            self.layer.mask = mask
        }
    }
}

I believe that this way the implementation is easy while selecting the sides.

view.roundCorners([.bottomLeft, .bottomRight, .topLeft], radius: 16)