resizeImage.swift

    private func scaleMapImage(_ image: UIImage?, size: CGSize) -> UIImage? {

        guard let image = image else {

            return nil

        }

        UIGraphicsBeginImageContext(CGSize(width: size.width, height: size.height))

        image.draw(in: CGRect(x: 0, y: 0, width: size.width, height: size.height))

        let newImage = UIGraphicsGetImageFromCurrentImageContext()

        UIGraphicsEndImageContext()

        return newImage

    }