getRegistrationID static method

Implementation

static Future<String?> getRegistrationID() async {
  try {
    final String? registrationId = await _channel.invokeMethod('getRegistrationID');
    print('RegistrationID: $registrationId');
    return registrationId;
  } catch (e) {
    print('获取RegistrationID失败: $e');
    return null;
  }
}