loadMore method

@override Future<void> loadMore(int page)

Load more data from the server using nextPageKey.

Implementation

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

  try {
    final assets = await _getRecentAssetPathList();

    if (assets == null) {
      const chatError = StreamChatError('No media found');
      value = previousValue.copyWith(error: chatError);
      return;
    }

    final mediaList = await assets.getAssetListPaged(
      page: page,
      size: limit,
    );

    final previousItems = previousValue.items;
    final newItems = previousItems + mediaList;
    final nextKey = mediaList.length < limit ? null : page + 1;
    value = PagedValue(
      items: newItems,
      nextPageKey: nextKey,
    );
  } on StreamChatError catch (error) {
    value = previousValue.copyWith(error: error);
  } catch (error) {
    final chatError = StreamChatError(error.toString());
    value = previousValue.copyWith(error: chatError);
  }
}