/// <summary>
/// Invoked when the application is about to start when it's launched normally by end user.
/// Override this method to implement state restoration and other application-level initialization.
/// </summary>
/// <param name="args"></param>
protected override async void OnApplicationStarting(LaunchActivatedEventArgs args)
{
// By default, RootFrame will automatically instantiate a new Frame object when it's accessed for the first time
// To specify a custom frame, please override the RootFrame property.
// Obtains the registered application state service
IntersoftCore.IApplicationStateService stateService = this.GetService <IntersoftCore.IApplicationStateService>();
// Associate the frame with an ApplicationStateService key
stateService.RegisterFrame(this.RootFrame, "AppFrame");
if (args.PreviousExecutionState == ApplicationExecutionState.Terminated)
{
// Restore the saved session state only when appropriate
try
{
await stateService.RestoreAsync();
}
catch (ApplicationStateServiceException)
{
//Something went wrong restoring state.
//Assume there is no state and continue
}
}
}
/// <summary>
/// Invoked when application execution is being suspended. Application state is saved
/// without knowing whether the application will be terminated or resumed with the contents
/// of memory still intact.
/// </summary>
/// <param name="sender">The source of the suspend request.</param>
/// <param name="e">Details about the suspend request.</param>
protected override async void OnSuspending(SuspendingEventArgs args)
{
// Obtains the registered application state service
IntersoftCore.IApplicationStateService stateService = this.GetService <IntersoftCore.IApplicationStateService>();
var deferral = args.SuspendingOperation.GetDeferral();
await stateService.SaveAsync();
deferral.Complete();
}