bluetoothSerialNo method

@override Future<String?> bluetoothSerialNo()

get Serial no from connected device

Implementation

@override
Future<String?> bluetoothSerialNo() async {
  btCtr = Completer();
  methodChannel.invokeMethod("bluetooth.serial_no");
  String? serialNo = await btCtr?.future;
  if (serialNo != null) {
    await DtbLinkStorage.instance.saveSerialNo(serialNo);
  }
  return serialNo;
}