loadMoreElements method

Implementation

@override
loadMoreElements({bool Function(T1 element)? isIncluded}) async {
  isLoading = true;
  try {
    if (isFetchNext) {
      await request.fetchNext(
          onSuccess: (List<T1> fetchedList) {
            _onSuccess(fetchedList, isIncluded);
          },
          onError: onError ?? _onError);
    } else {
      await request.fetchPrevious(
          onSuccess: (List<T1> fetchedList) {
            _onSuccess(fetchedList, isIncluded);
          },
          onError: onError ?? _onError);
    }
  } catch (e, s) {
    if (kDebugMode) {
      print("Error in Catch$e}");
    }
    error = CometChatException("ERR", s.toString(), "Error");
    hasError = true;
    isLoading = false;
    hasMoreItems = false;
    update();
  }
}