Swift之UIView设置部分圆角与获取其所在ViewController

设置部分圆角

• 实现原理: 可指定设置圆角的位置(左上角、左下角、右下角、右上角)

	func setCorner(size:CGFloat,roundingCorners:UIRectCorner) {
        let filePath : UIBezierPath = UIBezierPath.init(roundedRect: self.bounds, byRoundingCorners: roundingCorners, cornerRadii: CGSize.init(width: size, height: size))
        let fieldLayer : CAShapeLayer = CAShapeLayer.init()
        fieldLayer.frame = self.bounds
        fieldLayer.path = filePath.cgPath
        self.layer.mask = fieldLayer
    }

  

 

  
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• 使用: 仅设置左上角、左下角、右下角的圆角, 右上角则不设置圆角

	self.menuBackView.setCorner(size: 5, roundingCorners: [.topLeft, .bottomRight, .bottomLeft])

  

 

  
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获取其UIView所在ViewController

	func getFirstViewController()->UIViewController?{
        for view in sequence(first: self.superview, next: {$0?.superview}){
            if let responder = view?.next{
                if responder.isKind(of: UIViewController.self){
                    return responder as? UIViewController
                }
            }
        }
        return nil
    }

  

 

  
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文章来源: blog.csdn.net，作者：Serendipity·y，版权归原作者所有，如需转载，请联系作者。

原文链接：blog.csdn.net/Forever_wj/article/details/108270728