Flutter 实现下拉刷新上拉加载的示例代码

概述Flutter 实现下拉刷新上拉加载的示例代码 本文介绍了Flutter 实现下拉刷新上拉加载的示例代码,分享给大家,具体如下: 效果图 使用方法 添加依赖 dependencies: pull_to_refresh: ^1.5.7 导入包 import 'package:pull_to_refresh/pull_to_refresh.dart'; 页面代码样例 class _MyHomePageState extends State<MyHomePage> { List<String> items = [" ...

本文介绍了Flutter 实现下拉刷新上拉加载的示例代码，分享给大家，具体如下：

效果图

使用方法

添加依赖

dependencIEs: pull_to_refresh: ^1.5.7

导入包

import 'package:pull_to_refresh/pull_to_refresh.dart';

页面代码样例

class _MyHomePageState extends State<MyHomePage> { List<String> items = ["1","2","3","4","5","6","7","8"]; RefreshController _refreshController = RefreshController(initialRefresh: false); voID _onRefresh() async {  // monitor network fetch  await Future.delayed(Duration(milliseconds: 1000));  // if Failed,use refreshFailed()  _refreshController.refreshCompleted(); } voID _onLoading() async {  // monitor network fetch  await Future.delayed(Duration(milliseconds: 1000));  // if Failed,use loadFailed(),if no data return,use LoadNodata()  items.add((items.length + 1).toString());  if (mounted) setState(() {});  _refreshController.loadComplete(); } @overrIDe Widget build(BuildContext context) {  return Scaffold(   body: SmartRefresher(    enablePullDown: true,enablePullUp: true,header: WaterDropheader(),footer: CustomFooter(     builder: (BuildContext context,LoadStatus mode) {      Widget body;      if (mode == LoadStatus.IDle) {       body = Text("pull up load");      } else if (mode == LoadStatus.loading) {       body = CircularProgressIndicator();      } else if (mode == LoadStatus.Failed) {       body = Text("Load Failed!Click retry!");      } else if (mode == LoadStatus.canLoading) {       body = Text("release to load more");      } else {       body = Text("No more Data");      }      return Container(       height: 55.0,child: Center(child: body),);     },),controller: _refreshController,onRefresh: _onRefresh,onLoading: _onLoading,child: ListVIEw.builder(     itemBuilder: (c,i) => Card(child: Center(child: Text(items[i]))),itemExtent: 100.0,itemCount: items.length,); }}

完整源代码

https://gitee.com/cxyzy1/flutter_pulldown_refresh

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