public void OnServiceDisconnected(ComponentName name)
 {
     TestBinder = null;
 }
 public async void OnServiceConnected(ComponentName name, IBinder service)
 {
     TestBinder = service as TestBinder;
     var testService = TestBinder.TestBinderService;
     await testService.UploadPostsAsync(_testBkgdUploadTask);
 }