/// <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)
{
#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();
}