ToggleButtons 一组切换按钮

最新推荐文章于 2025-09-08 09:51:22 发布

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最新推荐文章于 2025-09-08 09:51:22 发布 · 322 阅读

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#切换按钮 #ToggleButtons

Flutter 通过ToggleButtons实现一组切换按钮。

import 'package:flutter/material.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(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({Key? key}) : super(key: key);

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  List<bool> _selections = List.generate(3, (index) => false);
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Container(
        height: 200,
        width: 300,
        child: Center(
          child: ToggleButtons(
            children: [
              Icon(Icons.cake),