public void PauseScanning()
 {
     PickerView.PauseScanning();
 }
 public void Handle_Clicked(object sender, EventArgs e)
 {
     HideResult();
     PickerView.StartScanning();
 }
 public void ResumeScanning()
 {
     PickerView.StartScanning();
 }
 public void StopScanning()
 {
     PickerView.StopScanning();
 }