scanBluetooth method

@override Future<void> scanBluetooth()

Implementation

@override
Future<void> scanBluetooth() async {
  try {
    final stream = bltDeviceEvent.receiveBroadcastStream();
    final mappedStream = stream.map((e) => e is List<dynamic>
        ? e.map(BluetoothDevice.fromDynamic).toList()
        : null);
    deviceSub = mappedStream.listen((e) {
      cachedDevices = e;
      deviceCtr.sink.add(e);
    });
    await bltMethodChannel.invokeMethod('scanBluetooth');
  } on PlatformException catch (e) {
    if (e.code == 'BluetoothException') {
      throw BluetoothException(e.message);
    }
    throw Exception(e.message);
  }
}