ios - 在swift下如何给tableview Grouped切指定圆角呢？

问题描述

问 题

项目要求是这样的

请问用swift如何作出这样的效果呢？
图示中的结构是一个section有2个row
所以是row1 切左上右上两个圆角， row2 切左下，右下2个圆角。

解决方案

问题已解决，代码如下，希望对各位有点用处

  override func drawRect(rect: CGRect) {
        //切左上右上圆角
        let maskPath = UIBezierPath(roundedRect:self.bounds, byRoundingCorners: [.TopLeft,.TopRight], cornerRadii: CGSizeMake(5.0, 5.0))
        let maskLayer = CAShapeLayer()
        maskLayer.frame = self.bounds
        maskLayer.path = maskPath.CGPath
        self.layer.mask = maskLayer
        
        //添加border
        let borderLayer = CAShapeLayer()
        borderLayer.frame = self.bounds
        borderLayer.path = maskPath.CGPath
        borderLayer.lineWidth = 0.5
        borderLayer.strokeColor = UIColor.lightGrayColor().CGColor
        borderLayer.fillColor = UIColor.clearColor().CGColor
        
        let layers:NSArray = self.layer.sublayers! as NSArray
        
        if ((layers.lastObject!.isKindOfClass(CAShapeLayer))) {
            layers.lastObject?.removeFromSuperlayer()
        }
        self.layer.addSublayer(borderLayer)
        
    }

  override func drawRect(rect: CGRect) {
        //切左下右下圆角
        let maskPath = UIBezierPath(roundedRect:self.bounds, byRoundingCorners:[.BottomLeft,.BottomRight], cornerRadii: CGSizeMake(5.0, 5.0))
        let maskLayer = CAShapeLayer()
        maskLayer.frame = self.bounds
        maskLayer.path = maskPath.CGPath
        self.layer.mask = maskLayer
        
        
        //添加border
        let borderLayer = CAShapeLayer()
        borderLayer.frame = self.bounds
        borderLayer.path = maskPath.CGPath
        borderLayer.lineWidth = 0.5
        borderLayer.strokeColor = UIColor.lightGrayColor().CGColor
        borderLayer.fillColor = UIColor.clearColor().CGColor
        
        let layers:NSArray = self.layer.sublayers! as NSArray
        
        if ((layers.lastObject!.isKindOfClass(CAShapeLayer))) {
            layers.lastObject?.removeFromSuperlayer()
        }
        self.layer.addSublayer(borderLayer)

    }

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