private async void startStopButton_Click(object sender, RoutedEventArgs e)
{
if (BackgroundManager.IsBackgroundTaskRegistered())
{
BackgroundManager.UnregisterBackgroundTask();
BackgroundManager.UnRegisterBackgroundTaskEventHandlers(_taskCompletedHandler, _progressEventHandler);
}
else
{
await BackgroundManager.RegisterBackgroundTask(CommonData.GUID, CommonData.ServiceName, CommonData.ServiceDescriptor);
BackgroundManager.RegisterBackgroundTaskEventHandlers(_taskCompletedHandler, _progressEventHandler);
}
updateBGStatus();
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
updateBGStatus();
BackgroundManager.RegisterBackgroundTaskEventHandlers(_taskCompletedHandler, _progressEventHandler);
}