/// <summary>
/// Raised when the user loads the page.
/// Register to the MVVM Light Messenger.
/// Load the menu items.
/// Register the background task to the system.
/// </summary>
/// <param name="e">Navigation event arguments</param>
protected override async void OnNavigatedTo(NavigationEventArgs e)
{
base.OnNavigatedTo(e);
// Register to the MVVM Light Messenger
Messenger.Default.Register<VisualGenericGroup>(this, GoToMasterPage);
Messenger.Default.Register<VisualGenericItem>(this, GoToDetailsPage);
Messenger.Default.Register<PinnableObject>(this, Pin);
Messenger.Default.Register<Uri>(this, GoToWebPage);
Messenger.Default.Register<object>(this, GoToAboutPage);
// Load items
if (e.NavigationMode == NavigationMode.New)
{
IMainViewModel viewModel = (IMainViewModel)DataContext;
if (App.IsInternetAvailable && viewModel.LoadMenuCommand.CanExecute(this))
{
viewModel.LoadMenuCommand.Execute(this);
}
// Register the background tast to the system
RegisterBackgroundTasksHelper helper = new RegisterBackgroundTasksHelper();
await helper.RegisterAsync();
// Update the application tile
ApplicationTileManager manager = new ApplicationTileManager();
await manager.CreateAsync();
}
}
/// <summary>
/// Run the background task
/// </summary>
/// <param name="taskInstance">Returns task informations</param>
public async void Run(IBackgroundTaskInstance taskInstance)
{
BackgroundTaskDeferral deferral = taskInstance.GetDeferral();
try
{
ApplicationTileManager manager = new ApplicationTileManager();
await manager.CreateAsync();
}
finally
{
// Informs the system task is finished
deferral.Complete();
}
}