ios - Create Circle Image View IOS问题

Question

我想为我的个人资料头像创建一个圆形 ImageView 。我试过这个:-

   class CircleImageView: UIImageView {

    override func draw(_ rect: CGRect) {
        // Drawing code

        layer.masksToBounds = true
        layer.cornerRadius = min(rect.width/2 , rect.height/2)
        clipsToBounds = true


    }
}

但是它不起作用。

Answer 1

extension 非常适合设置角或做圆形图像:

extension UIImageView {
    func setRadius(radius: CGFloat? = nil) {
        self.layer.cornerRadius = radius ?? self.frame.width / 2;
        self.layer.masksToBounds = true;
    }
}

使用:

imgview.setRadius(radius: 10)
imgview.setRadius() //default frame.width/2