UIImage from UIView

UIView+UIImage.swift

extension UIView {
    var asImage: UIImage? {
        UIGraphicsBeginImageContextWithOptions(
            CGSize(width: self.frame.width, height: self.frame.height), true, 1)
        self.layer.render(in: UIGraphicsGetCurrentContext()!)
        guard let image = UIGraphicsGetImageFromCurrentImageContext() else { return nil }
        UIGraphicsEndImageContext()

        return image
    }
}