AirPic.Demo.ImageViewController.ImageViewController C# (CSharp) Method

        public ImageViewController()
        {
            Title = "AirPic Demo";
            // on iOS 8.x we delegate the AirPlay feature to our Action extension
            bool ios8 = UIDevice.CurrentDevice.CheckSystemVersion (8,0);
            // the action extension will do the browsing for airplay capable devices
            AirPlayBrowser.Enabled = !ios8;

            var bounds = UIScreen.MainScreen.Bounds;
            image_view = new UIImageView (bounds);
            image_view.Image = UIImage.FromFile ("687px-Leontopithecus_rosalia_-_Copenhagen_Zoo_-_DSC09082.JPG");
            image_view.Image.Scale (bounds.Size);
            Add (image_view);

            UIBarButtonItem action = null;
            action = new UIBarButtonItem (UIBarButtonSystemItem.Action, delegate {
                if (image_view.Image == null)
                    return;
                // UIActivity is only for iOS6+ but that should not limit us :-)
                if (UIDevice.CurrentDevice.CheckSystemVersion (6,0)) {
                    var activities = AirPlayBrowser.Enabled ? UIAirPlayActivity.GetCurrentActivities () : null;
                    var a = new UIActivityViewController (new [] { image_view.Image }, activities);
                    if (AppDelegate.RunningOnIPad) {
                        popup = new UIPopoverController (a);
                        popup.PresentFromBarButtonItem (action, UIPopoverArrowDirection.Up, true);
                    } else {
                        PresentViewController (a, true, null);
                    }
                } else {
                    var devices = AirPlayBrowser.GetDeviceNames ();
                    var a = new UIActionSheet (null, null, "Cancel", null, devices);
                    a.Clicked += (sender, e) => {
                        nint index = e.ButtonIndex;
                        // ignore Cancel button
                        if (index < devices.Length) {
                            var device = AirPlayBrowser.GetDevice (devices [index]);
                            if (device != null) // they can disappear anytime
                                device.SendTo (image_view.Image, null);
                        }
                    };
                    a.ShowFrom (NavigationItem.RightBarButtonItem, true);
                }
            });
            NavigationItem.RightBarButtonItem = action;
        }