flutter/examples/api/lib/material/action_buttons/action_icon_theme.0.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.

// Flutter code sample for [ActionIconTheme].

import 'package:flutter/material.dart';

void main() {
  runApp(const MyApp());
}

class _CustomEndDrawerIcon extends StatelessWidget {
  const _CustomEndDrawerIcon();

  @override
  Widget build(BuildContext context) {
    final MaterialLocalizations localization = MaterialLocalizations.of(context);
    return Icon(
      Icons.more_horiz,
      semanticLabel: localization.openAppDrawerTooltip,
    );
  }
}

class _CustomDrawerIcon extends StatelessWidget {
  const _CustomDrawerIcon();

  @override
  Widget build(BuildContext context) {
    final MaterialLocalizations localization = MaterialLocalizations.of(context);
    return Icon(
      Icons.segment,
      semanticLabel: localization.openAppDrawerTooltip,
    );
  }
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        useMaterial3: true,
        actionIconTheme: ActionIconThemeData(
          backButtonIconBuilder: (BuildContext context) {
            return const Icon(Icons.arrow_back_ios_new_rounded);
          },
          drawerButtonIconBuilder: (BuildContext context) {
            return const _CustomDrawerIcon();
          },
          endDrawerButtonIconBuilder: (BuildContext context) {
            return const _CustomEndDrawerIcon();
          },
        ),
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatelessWidget {
  const MyHomePage({super.key, required this.title});

  final String title;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(title),
      ),
      drawer: const Drawer(),
      body: const Center(
        child: NextPageButton(),
      ),
    );
  }
}

class NextPageButton extends StatelessWidget {
  const NextPageButton({super.key});

  @override
  Widget build(BuildContext context) {
    return ElevatedButton.icon(
      onPressed: () {
        Navigator.of(context).push(
          MaterialPageRoute<MySecondPage>(builder: (BuildContext context) {
            return const MySecondPage();
          }),
        );
      },
      icon: const Icon(Icons.arrow_forward),
      label: const Text('Next page'),
    );
  }
}

class MySecondPage extends StatelessWidget {
  const MySecondPage({super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Second page'),
      ),
      endDrawer: const Drawer(),
    );
  }
}