private void OnBackRequested(object sender, BackRequestedEventArgs e) { Frame rootFrame = Window.Current.Content as Frame; if (rootFrame.CanGoBack) { e.Handled = true; rootFrame.GoBack(); } }
/// <summary> /// Invoked when the application is launched normally by the end user. Other entry points /// will be used such as when the application is launched to open a specific file. /// </summary> /// <param name="e">Details about the launch request and process.</param> protected override void OnLaunched(LaunchActivatedEventArgs e) { #if DEBUG if (System.Diagnostics.Debugger.IsAttached) { //this.DebugSettings.EnableFrameRateCounter = true; } #endif 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(); rootFrame.NavigationFailed += OnNavigationFailed; rootFrame.Navigated += OnNavigated; Forms.Init(e); if (e.PreviousExecutionState == ApplicationExecutionState.Terminated) { //TODO: Load state from previously suspended application } // Place the frame in the current Window Window.Current.Content = rootFrame; // Register a handler for BackRequested events and set the // visibility of the Back button SystemNavigationManager.GetForCurrentView().BackRequested += OnBackRequested; SystemNavigationManager.GetForCurrentView().AppViewBackButtonVisibility = rootFrame.CanGoBack ? AppViewBackButtonVisibility.Visible : AppViewBackButtonVisibility.Collapsed; } if (e.PrelaunchActivated == false) { 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 rootFrame.Navigate(typeof(MainPage), e.Arguments); } // Ensure the current window is active Window.Current.Activate(); } }
internal static bool Navigate(this Microsoft.UI.Xaml.Controls.Frame frame, ContentPage page, Microsoft.UI.Xaml.Media.Animation.NavigationTransitionInfo infoOverride) { if (page == null) { throw new ArgumentNullException(nameof(page)); } Guid id = Guid.NewGuid(); FormsEmbeddedPageWrapper.Pages.Add(id, page); if (infoOverride != null) { return(frame.Navigate(typeof(FormsEmbeddedPageWrapper), id, infoOverride)); } return(frame.Navigate(typeof(FormsEmbeddedPageWrapper), id)); }
public async Task OpenSecondaryWindow(Type pageType) { CoreApplicationView newView = CoreApplication.CreateNewView(); int newViewId = 0; await newView.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () => { var frame = new Microsoft.UI.Xaml.Controls.Frame(); //The page instance must be created inside the new UI Thread. ContentPage instance = (ContentPage)Activator.CreateInstance(pageType); frame.Navigate(instance); Window.Current.Content = frame; Window.Current.Activate(); newViewId = ApplicationView.GetForCurrentView().Id; }); bool viewShown = await ApplicationViewSwitcher.TryShowAsStandaloneAsync(newViewId); }
public static bool Navigate(this Microsoft.UI.Xaml.Controls.Frame frame, ContentPage page) { return(Navigate(frame, page, null)); }