如何在UIView和UIImageView中重用相同的IBDesignable代码

Question

  

我有一个IBDesignable类用于制作边界线和圆角半径。   问题是我必须为UIView和。编写单独的类   的UIImageView。对此有一个简单的解决方案。提前谢谢。

 @IBDesignable
    class View: UIView {
        //MARK:- Corner Radius
        @IBInspectable
        var cornerRadius : CGFloat =  0{
          didSet {
                self.layer.masksToBounds = true
                self.layer.cornerRadius = cornerRadius   
            } 
        }
    }

  

图片视图

 @IBDesignable
        class ImageView: UIImageView {
            //MARK:- Corner Radius
            @IBInspectable
            var cornerRadius : CGFloat =  0{
              didSet {
                    self.layer.masksToBounds = true
                    self.layer.cornerRadius = cornerRadius   
                } 
            }
        }

Answer 1

创建如下所示的扩展程序

extension UIView
{
    @IBInspectable var cornerRadius: CGFloat {
        get {
            return layer.cornerRadius;
        }
        set(value) {
            layer.cornerRadius = value;
        }
    }

    var rounded: Bool {
        return layer.cornerRadius > 0.0;
    }
}