/// <summary> /// Invoked when the application is launched normally by the end user. Other entry points /// will be used when the application is launched to open a specific file, to display /// search results, and so forth. /// </summary> /// <param name="args">Details about the launch request and process.</param> protected async override void OnLaunched(LaunchActivatedEventArgs args) { Frame rootFrame = Window.Current.Content as Frame; // Do not repeat app initialization when the Window already has content, // just ensure that the window is active if (rootFrame == null) { // Create a Frame to act as the navigation context and navigate to the first page rootFrame = new Frame(); APIMASH_Univision_StarterKit.Common.SuspensionManager.RegisterFrame(rootFrame, "AppFrame"); var connectionProfile = Windows.Networking.Connectivity.NetworkInformation.GetInternetConnectionProfile(); if (connectionProfile != null) { FeedDataSource feedDataSource = (FeedDataSource)App.Current.Resources["feedDataSource"]; if (feedDataSource != null) { if (feedDataSource.Feeds.Count == 0) { await feedDataSource.GetFeedsAsync(); } } } else { var messageDialog = new Windows.UI.Popups.MessageDialog("An internet connection is needed to download feeds. Please check your connection and restart the app."); var result = messageDialog.ShowAsync(); } if (args.PreviousExecutionState == ApplicationExecutionState.Terminated) { //TODO: Load state from previously suspended application await APIMASH_Univision_StarterKit.Common.SuspensionManager.RestoreAsync(); } // Place the frame in the current Window Window.Current.Content = rootFrame; } if (rootFrame.Content == null) { // When the navigation stack isn't restored navigate to the first page, // configuring the new page by passing required information as a navigation // parameter if (!rootFrame.Navigate(typeof(ItemsPage), args.Arguments)) { throw new Exception("Failed to create initial page"); } } // Ensure the current window is active Window.Current.Activate(); }
/// <summary> /// Invoked when this page is about to be displayed in a Frame. /// </summary> /// <param name="e">Event data that describes how this page was reached. The Parameter /// property is typically used to configure the page.</param> protected async override void OnNavigatedTo(NavigationEventArgs e) { FeedDataSource feedDataSource = (FeedDataSource)App.Current.Resources["feedDataSource"]; if (feedDataSource != null) { if (feedDataSource.Feeds.Count == 0) { await feedDataSource.GetFeedsAsync(); } this.DataContext = (feedDataSource.Feeds).First(); } }