UIImage with gradient color

gistfile1.txt

extension UIImage {
    /**
     Create gradient image from beginColor on top and end color at bottom
     
     - parameter beginColor: beginColor
     - parameter endColor:   endColor
     - parameter frame:      frame to be filled
     
     - returns: filled image
     */
    static func imageWithGradient(from beginColor: UIColor, to endColor: UIColor, with frame: CGRect) -> UIImage {
        let layer = CAGradientLayer()
        layer.frame = frame
        layer.colors = [beginColor.CGColor, endColor.CGColor]
        UIGraphicsBeginImageContext(CGSize(width: frame.width, height: frame.height))
        layer.renderInContext(UIGraphicsGetCurrentContext()!)
        let image = UIGraphicsGetImageFromCurrentImageContext()
        UIGraphicsEndImageContext()
        return image
    }
}