loadmore 2.1.0

listview scroll to bottom ,can load more data. help developer paging load data.

example/lib/main.dart

import 'dart:async';

import 'package:flutter/material.dart';
import 'package:loadmore/loadmore.dart';

void main() => runApp(const MyApp());

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.red,
        platform: TargetPlatform.iOS,
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({
    Key? key,
    required this.title,
  }) : super(key: key);
  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int get count => list.length;

  List<int> list = [];

  @override
  void initState() {
    super.initState();
    // list.addAll(List.generate(30, (v) => v));
  }

  void load() {
    print("load");
    setState(() {
      list.addAll(List.generate(5, (v) => v));
      print("data count = ${list.length}");
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: RefreshIndicator(
        onRefresh: _refresh,
        child: LoadMore(
          isFinish: count >= 60,
          onLoadMore: _loadMore,
          whenEmptyLoad: true,
          delegate: const DefaultLoadMoreDelegate(),
          textBuilder: DefaultLoadMoreTextBuilder.chinese,
          child: ListView.builder(
            itemBuilder: (BuildContext context, int index) {
              return ListTile(
                title: Text('Item $index'),
                subtitle: Text('The value: ${list[index]}'),
              );
            },
            itemCount: count,
          ),
        ),
      ),
    );
  }

  Future<bool> _loadMore() async {
    print("onLoadMore");
    await Future.delayed(const Duration(seconds: 0, milliseconds: 100));
    load();
    return true;
  }

  Future<void> _refresh() async {
    await Future.delayed(const Duration(seconds: 0, milliseconds: 100));
    list.clear();
    load();
  }
}