bn_refresh_indicator 1.4.1 bn_refresh_indicator: ^1.4.1 copied to clipboard
A system based refresh & load component.It's very low intrusive, and easy to use, just like flutter with.Welcome to support star if it can help.
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:bn_refresh_indicator/bn_refresh_indicator.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
// This is the theme of your application.
//
// Try running your application with "flutter run". You'll see the
// application has a blue toolbar. Then, without quitting the app, try
// changing the primarySwatch below to Colors.green and then invoke
// "hot reload" (press "r" in the console where you ran "flutter run",
// or simply save your changes to "hot reload" in a Flutter IDE).
// Notice that the counter didn't reset back to zero; the application
// is not restarted.
primarySwatch: Colors.blue,
),
home: MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
// This widget is the home page of your application. It is stateful, meaning
// that it has a State object (defined below) that contains fields that affect
// how it looks.
// This class is the configuration for the state. It holds the values (in this
// case the title) provided by the parent (in this case the App widget) and
// used by the build method of the State. Fields in a Widget subclass are
// always marked "final".
final String title;
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
var _counter = 10;
var more = false;
BnRefreshController refreshController = BnRefreshController();
@override
void initState() {
super.initState();
}
@override
Widget build(BuildContext context) {
// This method is rerun every time setState is called, for instance as done
// by the _incrementCounter method above.
//
// The Flutter framework has been optimized to make rerunning build methods
// fast, so that you can just rebuild anything that needs updating rather
// than having to individually change instances of widgets.
return Scaffold(
appBar: AppBar(
// Here we take the value from the MyHomePage object that was created by
// the App.build method, and use it to set our appbar title.
title: Text(widget.title),
actions: <Widget>[
IconButton(
icon: Icon(Icons.refresh),
onPressed: () {
refreshController.beginRefresh();
},
)
],
),
body: BnRefreshIndicator(
refreshController: refreshController,
autoRefresh: false,
nodataWidget: Text('there is no data'),
onRefresh: () async {
await Future.delayed(Duration(seconds: 3));
more = !more;
_counter = 10;
if (mounted) {
setState(() {});
}
return more;
},
onLoadMore: () async {
await Future.delayed(Duration(seconds: 3));
_counter += 10;
if (mounted) {
setState(() {});
}
return false;
},
child: ListView.builder(
// physics: BouncingScrollPhysics,
itemBuilder: (context, index) {
return GestureDetector(
child: Card(
child: Center(
child: Text('index -- $index'),
),
),
onTap: () {
Navigator.push(context, MaterialPageRoute(builder: (context) {
return MyHomePage(title: 'Second page');
}));
},
);
},
itemCount: _counter,
itemExtent: 88.0,
),
) // This trailing comma makes auto-formatting nicer for build methods.
);
}
}