class ViewController: UIViewController {

    @IBOutlet weak var img: UIImageView!

    override func viewDidLoad() {
        super.viewDidLoad()

        img.image = drawText(image: img.image!)
    }

    func drawText(image :UIImage) ->UIImage
    {
        let text = "TTTTT TEST TTTT"

        let font = UIFont.boldSystemFont(ofSize: 32)
        let imageRect = CGRect(x:0,y:0,width:image.size.width,height:image.size.height)

        UIGraphicsBeginImageContext(image.size);



        let textRect  = CGRect(x:5, y:5, width:image.size.width - 5, height:image.size.height - 5)
        let textStyle = NSMutableParagraphStyle.default.mutableCopy() as! NSMutableParagraphStyle
        let textFontAttributes = [
            NSFontAttributeName: font,
            NSForegroundColorAttributeName: UIColor.white,
            NSParagraphStyleAttributeName: textStyle
        ]

        text.draw(in: textRect, withAttributes: textFontAttributes)
        image.draw(in: imageRect, blendMode: .destinationOut, alpha: 1)




        let newImage = UIGraphicsGetImageFromCurrentImageContext();

        UIGraphicsEndImageContext()

        return newImage!
    }


    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }


}