protected override void OnDestroy()
{
base.OnDestroy();
if (reader != null)
{
// unregister barcode event listener
reader.RemoveBarcodeListener(this);
// unregister trigger state change listener
reader.RemoveTriggerListener(this);
// close BarcodeReader to clean up resources.
// once closed, the object can no longer be used.
reader.Close();
}
if (manager != null)
{
// close AidcManager to disconnect from the scanner service.
// once closed, the object can no longer be used.
manager.Close();
}
}