flutter_paging

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("Paging ListView"),
      ),
      body: RefreshIndicator(
        onRefresh: widget.dataSource.refresh,
        child: PagingListView<String>.builder(
          itemBuilder: (context, index, item) {
            return Card(
                child: Padding(
              padding: const EdgeInsets.all(8.0),
              child: Text("paging->$item"),
            ));
          },
          dataSource: widget.dataSource,
          loadingIndicator: Center(
            child: Padding(
              padding: const EdgeInsets.all(8.0),
              child: CircularProgressIndicator(),
            ),
          ),
          noMoreDataAvailableItem: Center(
            child: Padding(
              padding: const EdgeInsets.all(8.0),
              child: Text("no more data avaliable~"),
            ),
          ),
        ),
      ),
    );
  }