Shadow

UIView+Shadow.swift

    func addShadow(color: UIColor, fillColor: UIColor, radius: CGFloat = 3, opacity: Float = 0.5, offset: CGSize, cornerRadius: CGFloat = 0) {
        let shadowLayer = CAShapeLayer()
        shadowLayer.path = UIBezierPath(roundedRect: bounds, cornerRadius: cornerRadius).cgPath
        shadowLayer.shadowColor = color.cgColor
        shadowLayer.shadowPath = shadowLayer.path
        shadowLayer.shadowOffset = offset
        shadowLayer.shadowOpacity = opacity
        shadowLayer.shadowRadius = radius
        shadowLayer.masksToBounds = false
        shadowLayer.fillColor = fillColor.cgColor
        
        layer.insertSublayer(shadowLayer, at: 0)
    }