https://api.flutter.dev/flutter/material/TabBar-class.html?_gl=1*11ylmqa*_ga*MTAzODg4NTk4OS4xNzIyMjExNzI2*_ga_04YGWK0175*MTcyMjMwMjMwNC40LjEuMTcyMjMwMjMyMC4wLjAuMA..

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(
      home: HomePage(),
    );
  }
}

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

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text("앱바자리")),
      body: Column(
        children: [
          Container(
            height: 300,
            color: Colors.yellow,
          ),
          Expanded(
            child: DefaultTabController(
              length: 2,
              child: Column(
                children: [
                  TabBar(
                    tabs: [
                      Tab(icon: Icon(Icons.car_crash)),
                      Tab(icon: Icon(Icons.car_repair)),
                    ],
                  ),
                  Expanded(
                    child: TabBarView(
                      children: [
                        Container(color: Colors.red),
                        Container(color: Colors.blue),
                      ],
                    ),
                  ),
                ],
              ),
            ),
          ),
        ],
      ),
    );
  }
}