public void ShowPicture(string link)
        {
            UIStoryboard        storyboard          = UIStoryboard.FromName("Main", null);
            ImageViewController imageViewController = storyboard.InstantiateViewController("ImageViewController") as ImageViewController;

            if (imageViewController != null)
            {
                imageViewController.SetPicture(link);
                PresentModalViewController(imageViewController, true);
            }
        }
        public void ShowImage(string destPath)
        {
            BeginInvokeOnMainThread(() => {
                var imageController = new ImageViewController(destPath);

                var navController = new UINavigationController(imageController);
                navController.ModalPresentationStyle = UIModalPresentationStyle.FormSheet;

                PresentViewController(navController, true, () => {});
            });
        }
        public void ShowImage (string destPath)
        {
            BeginInvokeOnMainThread (() => {
                var imageController = new ImageViewController (destPath);

                var navController = new UINavigationController (imageController);
                navController.ModalPresentationStyle = UIModalPresentationStyle.FormSheet;

                PresentViewController (navController, true, () => {});
            });
        }