Some effect compilation to apply to UIView

UIView + Effect.swift

extension UIView {
    func round(roundValue:CGFloat? = nil) {
        
        if roundValue != nil {
            layer.cornerRadius = roundValue!
        }else {
            layer.cornerRadius = self.layer.bounds.width/2
        }
        
        layer.masksToBounds = true
        self.clipsToBounds = true
    }
    
    /**
    Note : You have to create 2 view if you want to create dropShadow effect combined with rounded border
    */
    
    open func addDropShadow(withOffset offset: CGSize, color:CGColor, radius: CGFloat = 6.0, opacity:CGFloat = 0.4) {
        let layer = self.layer
        layer.shadowColor = UIColor.black.cgColor
        layer.shadowOffset = offset
        layer.shadowRadius = 6.0
        layer.shadowOpacity = 0.4
        layer.masksToBounds = false
        updateShadowPath()
    }
    
    private func updateShadowPath() {
        layer.shadowPath = UIBezierPath(roundedRect: layer.bounds, cornerRadius: layer.cornerRadius).cgPath
    }
}