protected override async void OnBackgroundActivated(BackgroundActivatedEventArgs args)
{
base.OnBackgroundActivated(args);
deferral = args.TaskInstance.GetDeferral();
args.TaskInstance.Canceled += (s, r) =>
{
Debug.WriteLine($"Task canceled for {r}");
deferral.Complete();
};
Debug.WriteLine($"{args.TaskInstance.Task.Name} activated in background with {args.TaskInstance.TriggerDetails.GetType().ToString()}");
if (args.TaskInstance.TriggerDetails is RawNotification)
{
var rawNotification = args.TaskInstance.TriggerDetails as RawNotification;
Debug.WriteLine($"RawNotification received {rawNotification.Content}");
if (NotificationsManager == null)
{
NotificationsManager = new GraphNotificationsManager();
}
await NotificationsManager.HandlePushNotificationAsync(rawNotification.Content);
}
deferral.Complete();
Debug.WriteLine($"Task completed");
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
rootPage = MainPage.Current;
notificationsManager = ((App)Application.Current).NotificationsManager;
RefreshButton.IsEnabled = (notificationsManager != null);
if (notificationsManager != null)
{
Description.Text = "Welcome " + notificationsManager.SignedInAccount?.Username;
if (notificationsManager.UserNotificationSubscriptionId != null)
{
TextBox_SubscriptionId.Text = notificationsManager.UserNotificationSubscriptionId;
}
notificationsManager.CacheUpdated += Cache_CacheUpdated;
}
notificationsManager?.SubscribeAsync();
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
rootPage = MainPage.Current;
notificationsManager = ((App)Application.Current).NotificationsManager;
UpdateView(GetCurrentLoginState());
}