private void ShowPanoMono(object sender, EventArgs e)
        {
            var panoViewController = new PanoViewController
            {
                PanoImage = new UIImage("test_2k_mono.jpg"),
                ImageType = PanoramaImageType.Mono
            };

            NavigationController.PushViewController(panoViewController, true);
        }
        private void ShowPanoUrl(object sender, EventArgs e)
        {
            var imageData          = NSData.FromUrl(NSUrl.FromString("https://infosky.ch/media/road.jpg"));
            var panoViewController = new PanoViewController
            {
                PanoImage = UIImage.LoadFromData(imageData),
                ImageType = PanoramaImageType.StereoOverUnder
            };

            NavigationController.PushViewController(panoViewController, true);
        }