/// <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 override async 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();
//Associate the frame with a SuspensionManager key
SuspensionManager.RegisterFrame(rootFrame, "AppFrame");
if (args.PreviousExecutionState == ApplicationExecutionState.Terminated)
{
// Restore the saved session state only when appropriate
try
{
//was here, but failed on resume, move to 2nd spot: await SuspensionManager.RestoreAsync();
await DoStartup();
await SuspensionManager.RestoreAsync();
await DoResumeFromTermination();
}
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)
Window.Current.Activate(); // app is already running, or the navigation state was restored.
else
{
// Code associated with DoStartup was here, now separate function, called from ExtendedStartup
// See multimedialion.wordpress.com/2012/12/13/adding-an-extended-splash-screen-to-a-windows-8-app-tutorial-c
SplashScreen splashScreen = args.SplashScreen;
ExtendedSplash eSplash = new ExtendedSplash(splashScreen);
// Register an event handler to be exectued when the splash screen has been dismissed
splashScreen.Dismissed += new TypedEventHandler<SplashScreen, object>(eSplash.onSplashScreenDismissed);
//Maybe not...rootFrame.Content = eSplash; // suggested by stackoverflow.com/questions/12743355/screen-flashes-between-splash-and-extended-splash-in-windows-8-app
Window.Current.Content = eSplash;
// Ensure the current window is active
Window.Current.Activate();
// THIS HUNG: Do not repeat app initialization when already running, just ensure that
// the window is active
//if (args.PreviousExecutionState == ApplicationExecutionState.Running)
//{
// Window.Current.Activate();
// return;
//}
dispatcher = CoreWindow.GetForCurrentThread().Dispatcher;
await DoStartup();
Window.Current.Content = rootFrame; // restore after splash screen
sendQueue.StartWork(); // DON'T await. Needs to be after 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(HomeItemsPage), "AllGroups"))
{
throw new Exception("Failed to create initial page");
}
}
}
private static void DoExtendedSplashScreen(LaunchActivatedEventArgs args)
{
// Code associated with DoStartup was here, now separate function, called from ExtendedStartup
// See multimedialion.wordpress.com/2012/12/13/adding-an-extended-splash-screen-to-a-windows-8-app-tutorial-c
SplashScreen splashScreen = args.SplashScreen;
ExtendedSplash eSplash = new ExtendedSplash(splashScreen);
// Register an event handler to be executed when the splash screen has been dismissed
splashScreen.Dismissed += new TypedEventHandler<SplashScreen, object>(eSplash.onSplashScreenDismissed);
//Maybe not...rootFrame.Content = eSplash; // suggested by stackoverflow.com/questions/12743355/screen-flashes-between-splash-and-extended-splash-in-windows-8-app
Window.Current.Content = eSplash;
// Ensure the current window is active
Window.Current.Activate();
// THIS HUNG: Do not repeat app initialization when already running, just ensure that
// the window is active
//if (args.PreviousExecutionState == ApplicationExecutionState.Running)
//{
// Window.Current.Activate();
// return;
//}
dispatcher = CoreWindow.GetForCurrentThread().Dispatcher;
}
private static async Task<bool> DoExtendedSplashScreen(LaunchActivatedEventArgs args)
{
// Code associated with DoStartup was here, now separate function, called from ExtendedStartup
// See multimedialion.wordpress.com/2012/12/13/adding-an-extended-splash-screen-to-a-windows-8-app-tutorial-c
SplashScreen splashScreen = args.SplashScreen;
ExtendedSplash eSplash = new ExtendedSplash(splashScreen);
// Register an event handler to be executed when the splash screen has been dismissed
splashScreen.Dismissed += new TypedEventHandler<SplashScreen, object>(eSplash.onSplashScreenDismissed);
//Maybe not...rootFrame.Content = eSplash; // suggested by stackoverflow.com/questions/12743355/screen-flashes-between-splash-and-extended-splash-in-windows-8-app
Window.Current.Content = eSplash;
// Ensure the current window is active
Window.Current.Activate();
await DoStartup(); // This requires an active window, in order to put up (if needed) the first-run startup wizard
bool loadState = (args.PreviousExecutionState == ApplicationExecutionState.Terminated);
bool reloadedState = false; // until we know better
if(loadState)
{
// Restore the saved session state only when appropriate
try
{
await SuspensionManager.RestoreAsync();
reloadedState = true;
}
catch (SuspensionManagerException)
{
//Something went wrong restoring state. Assume there is no state and continue
}
if (reloadedState)
{
await DoResumeFromTermination();
return true;
}
}
return false;
}