UIView Borders

UIView Borders

extension UIView {
    
    func roundCorners(corners:UIRectCorner, radius:CGFloat) {
        let bounds = self.bounds;
        
        let maskPath:UIBezierPath = UIBezierPath(roundedRect: bounds, byRoundingCorners: corners, cornerRadii: CGSizeMake(radius, radius))
        
        let maskLayer:CAShapeLayer = CAShapeLayer()
        maskLayer.frame = bounds
        maskLayer.path = maskPath.CGPath
        
        self.layer.mask = maskLayer
        
        let frameLayer = CAShapeLayer()
        frameLayer.frame = bounds
        frameLayer.path = maskPath.CGPath
        if let bgc = self.backgroundColor {
            frameLayer.strokeColor = bgc.CGColor
        }
        frameLayer.fillColor = nil
        
        self.layer.addSublayer(frameLayer)
    }
    
    func roundTopCornersRadius(radius:CGFloat) {
        self.roundCorners((UIRectCorner.TopLeft|UIRectCorner.TopRight), radius:radius)
    }
    
    func roundBottomCornersRadius(radius:CGFloat) {
        self.roundCorners((UIRectCorner.BottomLeft|UIRectCorner.BottomRight), radius:radius)
    }
    
}