initBarcodeCallback method

@override void initBarcodeCallback({ required Null onScannedBarcode(String), })

Implementation

@override
void initBarcodeCallback({required Null Function(String) onScannedBarcode}) {
  methodChannel.setMethodCallHandler((call) async {
    if (call.method == 'onBarcodeScanned') {
      final String barcode = call.arguments;
      onScannedBarcode(barcode);
    }
  });
}