public void StartScanning(Action<ZXing.Result> scanCallback, MobileBarcodeScanningOptions options = null)
{
ScanCallback = scanCallback;
ScanningOptions = options ?? MobileBarcodeScanningOptions.Default;
this.topText.Text = TopText;
this.bottomText.Text = BottomText;
if (UseCustomOverlay && CustomOverlay != null)
{
gridCustomOverlay.Children.Clear();
gridCustomOverlay.Children.Add(CustomOverlay);
gridCustomOverlay.Visibility = Visibility.Visible;
gridDefaultOverlay.Visibility = Visibility.Collapsed;
}
else
{
gridCustomOverlay.Visibility = Visibility.Collapsed;
gridDefaultOverlay.Visibility = Visibility.Visible;
}
MobileBarcodeScanner.Log("ZXingScannerControl.StartScanning");
// Initialize a new instance of SimpleCameraReader with Auto-Focus mode on
if (_reader == null)
{
MobileBarcodeScanner.Log("Creating SimpleCameraReader");
_reader = new SimpleCameraReader(options);
_reader.ScanInterval = ScanningOptions.DelayBetweenAnalyzingFrames;
// We need to set the VideoBrush we're going to display the preview feed on
// IMPORTANT that it gets set before Camera initializes
_previewVideo.SetSource(_reader.Camera);
// The reader throws an event when a result is available
_reader.DecodingCompleted += (o, r) => DisplayResult(r);
// The reader throws an event when the camera is initialized and ready to use
_reader.CameraInitialized += ReaderOnCameraInitialized;
}
}
public void StopScanning()
{
gridCustomOverlay.Children.Remove(CustomOverlay);
_reader.Stop();
_reader = null;
}
public void StopScanning()
{
if (UseCustomOverlay && CustomOverlay != null)
gridCustomOverlay.Children.Remove(CustomOverlay);
_reader.Stop();
_reader = null;
}
public void StopScanning()
{
_reader.Stop();
_reader = null;
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
this.topText.Text = TopText;
this.bottomText.Text = BottomText;
if (UseCustomOverlay && CustomOverlay != null)
{
this.gridCustomOverlay.Children.Add(CustomOverlay);
this.gridCustomOverlay.Visibility = System.Windows.Visibility.Visible;
this.gridDefaultOverlay.Visibility = System.Windows.Visibility.Collapsed;
}
else
{
//this.gridCustomOverlay.Children.Clear();
this.gridCustomOverlay.Visibility = System.Windows.Visibility.Collapsed;
this.gridDefaultOverlay.Visibility = System.Windows.Visibility.Visible;
}
// Initialize a new instance of SimpleCameraReader with Auto-Focus mode on
_reader = new SimpleCameraReader(Scanner, ScanningOptions);
_reader.ScanInterval = ScanningOptions.DelayBetweenAnalyzingFrames;
OnRequestAutoFocus += () =>
{
_reader.Camera.Focus();
};
OnRequestTorch += (on) =>
{
if (on)
_reader.Camera.FlashMode = FlashMode.On;
else
_reader.Camera.FlashMode = FlashMode.Auto;
};
OnRequestToggleTorch += () => {
if (_reader.Camera.FlashMode == FlashMode.On)
_reader.Camera.FlashMode = FlashMode.Auto;
else
_reader.Camera.FlashMode = FlashMode.On;
};
OnRequestCancel += () => {
LastScanResult = null;
_reader.Stop();
Finish();
};
OnRequestIsTorchOn += () => {
return _reader.Camera.FlashMode == FlashMode.On;
};
// We need to set the VideoBrush we're going to display the preview feed on
// IMPORTANT that it gets set before Camera initializes
//a _previewVideo.SetSource((CaptureSource)_reader.Camera);
// _reader.ScanOnAutoFocus = false;
_previewVideo.SetSource(_reader.Camera);
// The reader throws an event when a result is available
_reader.DecodingCompleted += (o, r) => DisplayResult(r);
// The reader throws an event when the camera is initialized and ready to use
_reader.CameraInitialized += ReaderOnCameraInitialized;
base.OnNavigatedTo(e);
}
public void StopScanning()
{
_reader.Stop();
_reader = null;
}