infinite_scroll_pagination 3.0.0-nullsafety.0 copy "infinite_scroll_pagination: ^3.0.0-nullsafety.0" to clipboard
infinite_scroll_pagination: ^3.0.0-nullsafety.0 copied to clipboard

outdated

Lazily load and display pages of items as the user scrolls down your screen.

Infinite Scroll Pagination Logo

Pub.dev Badge GitHub Build Badge Gitter Badge Effective Dart Badge MIT License Badge Flutter Platform Badge


Infinite Scroll Pagination #

Unopinionated, extensible and highly customizable package to help you lazily load and display small chunks of items as the user scrolls down the screen – known as infinite scrolling pagination, endless scrolling pagination, auto-pagination, lazy loading pagination, progressive loading pagination, etc.

Designed to feel like part of the Flutter framework.

Example Project

Tutorial #

By raywenderlich.com (step-by-step, hands-on, in-depth and illustrated).

Usage #

class CharacterListView extends StatefulWidget {
  @override
  _CharacterListViewState createState() => _CharacterListViewState();
}

class _CharacterListViewState extends State<CharacterListView> {
  static const _pageSize = 20;

  final PagingController<int, CharacterSummary> _pagingController =
      PagingController(firstPageKey: 0);

  @override
  void initState() {
    _pagingController.addPageRequestListener((pageKey) {
      _fetchPage(pageKey);
    });
    super.initState();
  }

  Future<void> _fetchPage(int pageKey) async {
    try {
      final newItems = await RemoteApi.getCharacterList(pageKey, _pageSize);
      final isLastPage = newItems.length < _pageSize;
      if (isLastPage) {
        _pagingController.appendLastPage(newItems);
      } else {
        final nextPageKey = pageKey + newItems.length;
        _pagingController.appendPage(newItems, nextPageKey);
      }
    } catch (error) {
      _pagingController.error = error;
    }
  }

  @override
  Widget build(BuildContext context) => 
      // Don't worry about displaying progress or error indicators on screen; the 
      // package takes care of that. If you want to customize them, use the 
      // [PagedChildBuilderDelegate] properties.
      PagedListView<int, CharacterSummary>(
        pagingController: _pagingController,
        builderDelegate: PagedChildBuilderDelegate<CharacterSummary>(
          itemBuilder: (context, item, index) => CharacterListItem(
            character: item,
          ),
        ),
      );

  @override
  void dispose() {
    _pagingController.dispose();
    super.dispose();
  }
}

For more usage examples, please take a look at our cookbook or check out the example project.

Features #

API Overview #

API Diagram

3127
likes
0
pub points
99%
popularity

Publisher

verified publisheredsonbueno.com

Lazily load and display pages of items as the user scrolls down your screen.

Repository (GitHub)
View/report issues

License

unknown (LICENSE)

Dependencies

flutter, sliver_tools

More

Packages that depend on infinite_scroll_pagination