adding any uiview as a uibutton state

UIButton+extensions

extension UIView {
    var image: UIImage {
        let renderer = UIGraphicsImageRenderer(bounds: bounds)
        return renderer.image { rendererContext in
            layer.render(in: rendererContext.cgContext)
        }
    }
}
extension UIButton {
    func setBackgroundView(_ view: UIView, for state: UIControl.State) {
        self.setBackgroundImage(view.image, for: state)
    }
}