/// <summary> /// Populates the page with content passed during navigation. Any saved state is also /// provided when recreating a page from a prior session. /// </summary> /// <param name="navigationParameter">The parameter value passed to /// <see cref="Frame.Navigate(Type, Object)"/> when this page was initially requested. /// </param> /// <param name="pageState">A dictionary of state preserved by this page during an earlier /// session. This will be null the first time a page is visited.</param> protected override void LoadState(Object navigationParameter, Dictionary <String, Object> pageState) { // TODO: Assign a bindable collection of items to this.DefaultViewModel["Items"] FeedDataSource feedDataSource = (FeedDataSource)App.Current.Resources["feedDataSource"]; if (feedDataSource != null) { this.DefaultViewModel["Items"] = feedDataSource.Feeds; } }
/// <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(); WindowsBlogReader.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 WindowsBlogReader.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(); } }
/// <summary> /// Populates the page with content passed during navigation. Any saved state is also /// provided when recreating a page from a prior session. /// </summary> /// <param name="navigationParameter">The parameter value passed to /// <see cref="Frame.Navigate(Type, Object)"/> when this page was initially requested. /// </param> /// <param name="pageState">A dictionary of state preserved by this page during an earlier /// session. This will be null the first time a page is visited.</param> protected override void LoadState(Object navigationParameter, Dictionary <String, Object> pageState) { // Run the PopInThemeAnimation Windows.UI.Xaml.Media.Animation.Storyboard sb = this.FindName("PopInStoryboard") as Windows.UI.Xaml.Media.Animation.Storyboard; if (sb != null) { sb.Begin(); } // TODO: Assign a bindable group to this.DefaultViewModel["Group"] // TODO: Assign a collection of bindable items to this.DefaultViewModel["Items"] string feedTitle = (string)navigationParameter; FeedData feedData = FeedDataSource.GetFeed(feedTitle); if (feedData != null) { this.DefaultViewModel["Feed"] = feedData; this.DefaultViewModel["Items"] = feedData.Items; } if (pageState == null) { // When this is a new page, select the first item automatically unless logical page // navigation is being used (see the logical page navigation #region below.) if (!this.UsingLogicalPageNavigation() && this.itemsViewSource.View != null) { this.itemsViewSource.View.MoveCurrentToFirst(); } else { this.itemsViewSource.View.MoveCurrentToPosition(-1); } } else { // Restore the previously saved state associated with this page if (pageState.ContainsKey("SelectedItem") && this.itemsViewSource.View != null) { // TODO: Invoke this.itemsViewSource.View.MoveCurrentTo() with the selected // item as specified by the value of pageState["SelectedItem"] string itemTitle = (string)pageState["SelectedItem"]; FeedItem selectedItem = FeedDataSource.GetItem(itemTitle); this.itemsViewSource.View.MoveCurrentTo(selectedItem); } } }
/// <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 override async void OnNavigatedTo(NavigationEventArgs e) { FeedDataSource feedDataSource = (FeedDataSource)App.Current.Resources["feedDataSource"]; if (feedDataSource != null) { if (feedDataSource.Feeds.Count == 0) { await feedDataSource.GetFeedsAsync(); } foreach (var r in feedDataSource.Feeds[1].Items) { feedDataSource.Feeds[0].Items.Add(r); } this.DataContext = (feedDataSource.Feeds).First(); } }
/// <summary> /// Populates the page with content passed during navigation. Any saved state is also /// provided when recreating a page from a prior session. /// </summary> /// <param name="navigationParameter">The parameter value passed to /// <see cref="Frame.Navigate(Type, Object)"/> when this page was initially requested. /// </param> /// <param name="pageState">A dictionary of state preserved by this page during an earlier /// session. This will be null the first time a page is visited.</param> protected override void LoadState(Object navigationParameter, Dictionary <String, Object> pageState) { // Run the PopInThemeAnimation Windows.UI.Xaml.Media.Animation.Storyboard sb = this.FindName("PopInStoryboard") as Windows.UI.Xaml.Media.Animation.Storyboard; if (sb != null) { sb.Begin(); } // Add this code to navigate the web view to the selected blog post. string itemTitle = (string)navigationParameter; FeedItem feedItem = FeedDataSource.GetItem(itemTitle); if (feedItem != null) { this.contentView.Navigate(feedItem.Link); this.DataContext = feedItem; } }