subscribeUserStatus method

Future<V2TimCallback> subscribeUserStatus({
  1. required List<String> userIDList,
})

Implementation

Future<V2TimCallback> subscribeUserStatus({
  required List<String> userIDList,
}) async {
  if (!_isInitSDK) {
    return V2TimCallback(code: TIMErrCode.ERR_SDK_NOT_INITIALIZED.value, desc: 'sdk not init');
  }

  if (userIDList.isEmpty) {
    return V2TimCallback(code: TIMErrCode.ERR_INVALID_PARAMETERS.value, desc: 'userIDList is empty');
  }

  String userData = Tools.generateUserData('subscribeUserStatus');
  Completer<V2TimCallback> completer = Completer();
  NativeLibraryManager.addTimCallback2Map(userData, completer);

  Pointer<Char> pUserIDList = Tools.string2PointerChar(json.encode(userIDList));
  Pointer<Void> pUserData = Tools.string2PointerVoid(userData);
  NativeLibraryManager.bindings.DartSubscribeUserStatus(pUserIDList, pUserData);

  return completer.future.then((value) {
    NativeLibraryManager.removeTimCallbackFromMap(userData);
    Tools.freePointers([pUserIDList, pUserData]);
    return value;
  });
}