void EmbedPlugInView() { var builtInPlugInsURL = NSBundle.MainBundle.BuiltInPluginsUrl; var pluginURL = builtInPlugInsURL.Append("FilterDemoAppExtension.appex", false); var appExtensionBundle = NSBundle.FromUrl(pluginURL); var storyboard = UIStoryboard.FromName("MainInterface", appExtensionBundle); filterDemoViewController = storyboard.InstantiateInitialViewController() as FilterDemoViewController; var view = filterDemoViewController.View; if (view == null) { return; } AddChildViewController(filterDemoViewController); view.Frame = auContainerView.Bounds; auContainerView.AddSubview(view); filterDemoViewController.DidMoveToParentViewController(this); }