protected override async void OnNavigatedTo(NavigationEventArgs e)
{
PaintingCanvas.Background = null;
_state = StreamingState.Idle;
if (_faceDetector == null)
{
_faceDetector = await FaceDetector.CreateAsync();
}
if (_faceApiHelper == null)
{
try
{
_faceApiHelper = new FaceApiHelper();
await _faceApiHelper.CheckGroupExistAsync();
}
catch (FaceAPIException faceEx)
{
ShowAlertHelper.ShowDialog(faceEx.ErrorMessage, faceEx.ErrorCode);
}
catch (Exception ex)
{
ShowAlertHelper.ShowDialog(ex.Message);
}
}
}
protected override async void OnNavigatedTo(NavigationEventArgs e)
{
_state = StreamingState.Idle;
if (_faceTracker == null)
{
_faceTracker = await FaceTracker.CreateAsync();
}
if (_faceApiHelper == null)
{
try
{
_faceApiHelper = new FaceApiHelper();
await _faceApiHelper.CheckGroupExistAsync();
}
catch (Microsoft.ProjectOxford.Face.FaceAPIException faceEx)
{
ShowAlertHelper.ShowDialog(faceEx.ErrorMessage, faceEx.ErrorCode);
}
catch (Exception ex)
{
ShowAlertHelper.ShowDialog(ex.Message);
}
}
if (_dataHelper == null)
{
try
{
_dataHelper = new DataHelper();
}
catch (Exception ex)
{
ShowAlertHelper.ShowDialog(ex.Message);
}
}
}