Pagination with ListView.bulider in Flutter - flutter

Question

I'm new at flutter and I have been searching for good results in pagination.
Pagination in flutter listview is a way to load the data when you reach the end of the list.
The pagination is used to load the data in part-wise.
Pagination in flutter listview divides the data in page manner like page 1 and page.
Need to load the list of data 10 items on each page
input:
Implement pagination
output:
Image:
https://i.stack.imgur.com/QKHc2.png

Answer 1

You can use loadmore package.
body: RefreshIndicator(
child: LoadMore(
isFinish: count >= 10,
onLoadMore: _loadMore,
child: ListView.builder(
itemBuilder: (BuildContext context, int index) {
return Container(
child: Text(list[index].toString()),
alignment: Alignment.center,
);
},
itemCount: count,
),
whenEmptyLoad: false,
delegate: DefaultLoadMoreDelegate(),
textBuilder: DefaultLoadMoreTextBuilder.chinese,
),
onRefresh: _refresh,
),

Answer 2

You can use Flutter's NotificationListener<ScrollNotification>(...) widget.
Sample:
import 'package:flutter/material.dart';
class PaginatedListView extends StatefulWidget {
const PaginatedListView({
required this.onNext,
this.nextPageRatio = 1,
this.hasNextPage = false,
required this.child,
this.loadingIndicator,
super.key,
}) : assert(
nextPageRatio >= 0 && nextPageRatio <= 1,
'[nextPageRatio] should be between 0...1',
);
final VoidCallback onNext;
final double nextPageRatio;
final bool hasNextPage;
final SliverList child;
final Widget? loadingIndicator;
#override
State<PaginatedListView> createState() => _PaginatedListViewState();
}
class _PaginatedListViewState extends State<PaginatedListView> {
final ScrollController _controller = ScrollController();
double _currentMaxScrollExtent = 0;
#override
void initState() {
super.initState();
WidgetsBinding.instance.addPostFrameCallback((_) {
if (_controller.position.maxScrollExtent == 0 && widget.hasNextPage) {
widget.onNext();
}
});
}
bool _onNotification(ScrollNotification notification) {
if (!widget.hasNextPage) {
return false;
}
final double maxScrollExtent =
notification.metrics.maxScrollExtent * widget.nextPageRatio;
if (notification.metrics.pixels >= maxScrollExtent &&
_currentMaxScrollExtent < maxScrollExtent) {
_currentMaxScrollExtent = maxScrollExtent;
widget.onNext();
}
return false;
}
#override
Widget build(BuildContext context) {
return NotificationListener<ScrollNotification>(
onNotification: _onNotification,
child: CustomScrollView(
controller: _controller,
physics: const AlwaysScrollableScrollPhysics(),
slivers: <Widget>[
widget.child,
if (widget.hasNextPage)
SliverToBoxAdapter(
child: Center(
child: widget.loadingIndicator ??
const CircularProgressIndicator(),
),
),
],
),
);
}
}

Answer 3

You can use the Pull To Refresh package for pagination in Flutter.