let refreshAlert = UIAlertController(title: "Alert", message: "Are you sure ?", preferredStyle: UIAlertControllerStyle.Alert)

    var imageView = UIImageView(frame: CGRectMake(220, 10, 40, 40))
    let yourImage = UIImage(named: "delete")
    imageView.image = yourImage

    refreshAlert.view.addSubview(imageView)

    refreshAlert.addAction(UIAlertAction(title: "Ok", style: .Default, handler: { (action: UIAlertAction!) in ...

let image = UIImage(named: "myImage")
var action = UIAlertAction(title: "title", style: .Default, handler: nil)
action.setValue(image, forKey: "image")
alert.addAction(action)

UIAlertAction* HDQuality = [UIAlertAction
                                actionWithTitle:@"🔒 lockk Action"
                                style:UIAlertActionStyleDefault
                                handler:^(UIAlertAction * action)
                                {
                                    [alert dismissViewControllerAnimated:YES completion:nil];



                                }];

[alert addAction:HDQuality];