Convert base64 string to uiimage iOS swift

Problem: 

I'm having base 64 string with me.I want an extension function that will convert the base 64 string UIImage.

Solution:

extension String {

    func base64ToImage() -> UIImage? {

        if let url = URL(string: self),let data = try? Data(contentsOf: url),let image = UIImage(data: data) {

            return image

        } else {

            if let imageData = NSData(base64Encoded: self, options: NSData.Base64DecodingOptions.ignoreUnknownCharacters) {

                return UIImage(data: imageData as Data)

            } else {

                let str = self.replacingOccurrences(of: "data:image/svg+xml;base64,", with: "")

                if let imageData = Data(base64Encoded:str) {

                    if let anSVGImage: SVGKImage = SVGKImage(data:imageData) {

                        anSVGImage.caLayerTree.backgroundColor = UIColor.clear.cgColor

                        return anSVGImage.uiImage

                    }

                }

                

            }

        }

        return nil

    }

}

Call the function as like below

myimageview.image = mystring.base64ToImage()