getGroupWhiteListFromServer method
获取白名单列表
Implementation
Future<List<String>?> getGroupWhiteListFromServer(String groupId) async {
Map req = {'groupId': groupId};
Map result = await _channel.invokeMethod(
EMSDKMethod.getGroupWhiteListFromServer, req);
EMError.hasErrorFromResult(result);
return result[EMSDKMethod.getGroupWhiteListFromServer]?.cast<String>();
}