printQR method

@override Future<String> printQR(String data, int size)

Implementation

@override
Future<String> printQR(String data, int size) async {
  try {
    return await methodChannel
            .invokeMethod<String>('printQR', {'data': data, 'size': size}) ??
        'invalid';
  } on MissingPluginException catch (_) {
    throw MissingPluginException('No method found for printQR() on channel');
  }
}