isMemberInWhiteListFromServer method
判断自己是否在白名单中
Implementation
Future<bool?> isMemberInWhiteListFromServer(String groupId) async {
Map req = {'groupId': groupId};
Map result = await _channel.invokeMethod(
EMSDKMethod.isMemberInWhiteListFromServer, req);
EMError.hasErrorFromResult(result);
return result.boolValue(EMSDKMethod.isMemberInWhiteListFromServer);
}