flutter/examples/api/lib/material/tabs/tab_bar.1.dart
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---------

Co-authored-by: Kate Lovett <katelovett@google.com>
Co-authored-by: LongCatIsLooong <31859944+LongCatIsLooong@users.noreply.github.com>
2024-12-19 20:06:21 +00:00

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Dart

// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/material.dart';
/// Flutter code sample for [TabBar].
void main() => runApp(const TabBarApp());
class TabBarApp extends StatelessWidget {
const TabBarApp({super.key});
@override
Widget build(BuildContext context) {
return MaterialApp(theme: ThemeData(useMaterial3: true), home: const TabBarExample());
}
}
class TabBarExample extends StatefulWidget {
const TabBarExample({super.key});
@override
State<TabBarExample> createState() => _TabBarExampleState();
}
/// [AnimationController]s can be created with `vsync: this` because of
/// [TickerProviderStateMixin].
class _TabBarExampleState extends State<TabBarExample> with TickerProviderStateMixin {
late final TabController _tabController;
@override
void initState() {
super.initState();
_tabController = TabController(length: 3, vsync: this);
}
@override
void dispose() {
_tabController.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('TabBar Sample'),
bottom: TabBar(
controller: _tabController,
tabs: const <Widget>[
Tab(icon: Icon(Icons.cloud_outlined)),
Tab(icon: Icon(Icons.beach_access_sharp)),
Tab(icon: Icon(Icons.brightness_5_sharp)),
],
),
),
body: TabBarView(
controller: _tabController,
children: const <Widget>[
Center(child: Text("It's cloudy here")),
Center(child: Text("It's rainy here")),
Center(child: Text("It's sunny here")),
],
),
);
}
}