private void Start()
{
CameraService cameraService = new CameraService();
CognitiveService cognitiveService = new CognitiveService();
int countSearchTimes = 0;
_isScanning = true;
List_wordsRicognized.Visibility = Visibility.Collapsed;
Button_start.Visibility = Visibility.Collapsed;
Button_stop.Visibility = Visibility.Visible;
Grid_loading.Visibility = Visibility.Visible;
DM_logo.Visibility = Visibility.Collapsed;
Task.Factory.StartNew(async() =>
{
if (cameraService.IsInitialized() == false)
{
await cameraService.InitializeAsync();
}
while (_isScanning)
{
countSearchTimes++;
Task.Delay(Config.Instance.ScanTimeDeley).Wait();
if (_isScanning)
{
var stream = (await cameraService.CapturePhoto());
stream.Seek(0);
byte[] imgBytes = new byte[stream.Size];
await stream.AsStream().ReadAsync(imgBytes, 0, (int)stream.Size);
var _words = await cognitiveService.ReadTextFromImage(imgBytes);
if (_words != null && _words.Count > 0)
{
await UIDispatcher.MainView.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
WordsRecognized.Clear();
foreach (var item in _words)
{
WordsRecognized.Add(item);
}
Grid_loading.Visibility = Visibility.Collapsed;
List_wordsRicognized.Visibility = Visibility.Visible;
Button_start.Visibility = Visibility.Visible;
Button_stop.Visibility = Visibility.Collapsed;
});
_isScanning = false;
}
}
}
}).Wait();
}
private async void KioskPreview_Loaded(Object sender, Windows.UI.Xaml.RoutedEventArgs e)
{
App.Current.Suspending += Application_Suspending;
var camera = await DeviceService.Instance.GetCameraAsync();
cameraService = CameraService.Instance;
await cameraService.InitializeAsync(camera.Id);
await cameraService.Preview.StartAsync(PreviewControl);
}
public override async Task NavigatedToAsync(object navigationParameter)
{
await base.NavigatedToAsync(navigationParameter);
await cameraService.InitializeAsync();
bool successTakingPhoto = await TakePhotoAsync();
if (successTakingPhoto)
{
await NavigateToServicesAsync(CurrentMediaFile);
}
else
{
// Navigate back. Dialog is already shown
await NavigationService.NavigateBackAsync();
}
}
