loadMore method

  1. @override
Future<void> loadMore(
  1. int nextPageKey
)
override

Load more data from the server using nextPageKey.

Implementation

@override
Future<void> loadMore(int nextPageKey) async {
  final previousValue = value.asSuccess;

  try {
    final memberResponse = await channel.queryMembers(
      filter: _activeFilter,
      sort: _activeSort,
      pagination: PaginationParams(limit: limit, offset: nextPageKey),
    );

    final members = memberResponse.members;
    final previousItems = previousValue.items;
    final newItems = previousItems + members;
    final nextKey = members.length < limit ? null : newItems.length;
    value = PagedValue(
      items: newItems.where((it) => it.user != null).toList(),
      nextPageKey: nextKey,
    );
  } on StreamChatError catch (error) {
    value = previousValue.copyWith(error: error);
  } catch (error) {
    final chatError = StreamChatError(error.toString());
    value = previousValue.copyWith(error: chatError);
  }
}