UIImageView clip showing image

UIImageViewExtension

extension UIImageView {
    
    func clip(roundedRect: CGRect?, cornerRadius: CGFloat = 0, force: Bool = false) {
        if force {
            let bezierPath = UIBezierPath(roundedRect: roundedRect ?? bounds, cornerRadius: cornerRadius)
            let maskLayer = CAShapeLayer()
            maskLayer.path = bezierPath.cgPath
            layer.mask = maskLayer
        } else if layer.mask == nil {
            let bezierPath = UIBezierPath(roundedRect: roundedRect ?? bounds, cornerRadius: cornerRadius)
            let maskLayer = CAShapeLayer()
            maskLayer.path = bezierPath.cgPath
            layer.mask = maskLayer
        }
    }
    
    func clip(cornerRadius: CGFloat = 0, force: Bool = false) {
        clip(roundedRect: nil, cornerRadius: cornerRadius, force: force)
    }
    
    func clip(cornerRadius: CGFloat!) {
        clip(cornerRadius: cornerRadius, force: false)
    }
    
    func clip(force: Bool!) {
        clip(cornerRadius: 0, force: force)
    }
    
    func clipsToCircle() {
        let radius = bounds.width < bounds.height ? bounds.width : bounds.height
        clip(cornerRadius: radius/2.0)
    }
    
}