getDeviceId function

Implementation

Future<String?> getDeviceId() async {
  final DeviceInfoPlugin deviceInfo = DeviceInfoPlugin();
  if (Platform.isIOS) {
    final iosInfo = await deviceInfo.iosInfo;
    return iosInfo.identifierForVendor;
  } else if (Platform.isAndroid) {
    const androidId = AndroidId();
    return await androidId.getId();
  } else {
    return null;
  }
}