protected override async void OnLaunched(LaunchActivatedEventArgs e)
{
var stateFile = await ApplicationData
.Current.LocalFolder
.CreateFileAsync("state.json", CreationCollisionOption.OpenIfExists);
var autoSuspendHelper = new AutoSuspendHelper(this);
RxApp.SuspensionHost.CreateNewAppState = () => new MainState();
RxApp.SuspensionHost.SetupDefaultSuspendResume(new NewtonsoftJsonSuspensionDriver(stateFile.Path));
autoSuspendHelper.OnLaunched(e);
if (!(Window.Current.Content is Frame rootFrame))
{
rootFrame = new Frame();
rootFrame.NavigationFailed += OnNavigationFailed;
Window.Current.Content = rootFrame;
}
if (e.PrelaunchActivated == false)
{
if (rootFrame.Content == null)
{
rootFrame.Navigate(typeof(MainView), e.Arguments);
}
Window.Current.Activate();
}
}
public async Task ActivateAsync(object activationArgs)
{
if (IsInteractive(activationArgs))
{
// Initialize things like registering background task before the app is loaded
await InitializeAsync();
_autoSuspendHelper.OnLaunched(activationArgs as IActivatedEventArgs);
// Do not repeat app initialization when the Window already has content,
// just ensure that the window is active
if (Window.Current.Content == null)
{
// Create a Frame to act as the navigation context and navigate to the first page
Window.Current.Content = _shell?.Value ?? new Frame();
// Put the ReactiveUI MainWindow (IScreen) inside of the shell frame.
NavigationService.Frame.Navigate(typeof(MainWindow));
NavigationService.NavigationFailed += (sender, e) =>
{
throw e.Exception;
};
NavigationService.Navigated += Frame_Navigated;
if (SystemNavigationManager.GetForCurrentView() != null)
{
SystemNavigationManager.GetForCurrentView().BackRequested += ActivationService_BackRequested;
}
}
}
var activationHandler = GetActivationHandlers()
.FirstOrDefault(h => h.CanHandle(activationArgs));
if (activationHandler != null)
{
await activationHandler.HandleAsync(activationArgs);
}
if (IsInteractive(activationArgs))
{
// Ensure the current window is active
Window.Current.Activate();
// Tasks after activation
await StartupAsync();
}
}
/// <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="e">Details about the launch request and process.</param>
protected override async void OnLaunched(LaunchActivatedEventArgs e)
{
base.OnLaunched(e);
autoSuspendHelper.OnLaunched(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();
// Associate the frame with a SuspensionManager key.
SuspensionManager.RegisterFrame(rootFrame, "AppFrame");
// TODO: Change this value to a cache size that is appropriate for your application.
rootFrame.CacheSize = 1;
if (e.PreviousExecutionState == ApplicationExecutionState.Terminated)
{
// Restore the saved session state only when appropriate.
try
{
await SuspensionManager.RestoreAsync();
}
catch (SuspensionManagerException)
{
// Something went wrong restoring state.
// Assume there is no state and continue.
}
}
// Place the frame in the current Window.
Window.Current.Content = rootFrame;
}
if (rootFrame.Content == null)
{
// Removes the turnstile navigation for startup.
if (rootFrame.ContentTransitions != null)
{
this.transitions = new TransitionCollection();
foreach (var c in rootFrame.ContentTransitions)
{
this.transitions.Add(c);
}
}
rootFrame.ContentTransitions = null;
rootFrame.Navigated += this.RootFrame_FirstNavigated;
// 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(PivotPage), e.Arguments))
{
throw new Exception("Failed to create initial page");
}
}
// Ensure the current window is active.
Window.Current.Activate();
}
/// <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="e">Details about the launch request and process.</param>
protected override void OnLaunched(LaunchActivatedEventArgs e)
{
base.OnLaunched(e);
autoSuspendHelper.OnLaunched(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();
// TODO: change this value to a cache size that is appropriate for your application
rootFrame.CacheSize = 1;
if (e.PreviousExecutionState == ApplicationExecutionState.Terminated)
{
// TODO: Load state from previously suspended application
}
// Place the frame in the current Window
Window.Current.Content = rootFrame;
}
if (rootFrame.Content == null)
{
#if WINDOWS_PHONE_APP
// Removes the turnstile navigation for startup.
if (rootFrame.ContentTransitions != null)
{
this.transitions = new TransitionCollection();
foreach (var c in rootFrame.ContentTransitions)
{
this.transitions.Add(c);
}
}
rootFrame.ContentTransitions = null;
rootFrame.Navigated += this.RootFrame_FirstNavigated;
#endif
// 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(MainPage), e.Arguments))
{
throw new Exception("Failed to create initial page");
}
}
// Ensure the current window is active
Window.Current.Activate();
}