import 'package:flutter/material.dart';

void main() => runApp(const MyApp());

class MyApp extends StatelessWidget {
  const MyApp({super.key, this.dark = false, this.useMaterial3 = true});

  final bool dark;
  final bool useMaterial3;

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      themeMode: dark ? ThemeMode.dark : ThemeMode.light,
      theme: ThemeData(
        useMaterial3: useMaterial3,
        brightness: Brightness.light,
        colorSchemeSeed: const Color(0xff6750a4),
      ),
      darkTheme: ThemeData(
        useMaterial3: useMaterial3,
        brightness: Brightness.dark,
        colorSchemeSeed: const Color(0xff6750a4),
      ),
      home: const TabBarExample(),
    );
  }
}

class TabBarExample extends StatelessWidget {
  const TabBarExample({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return DefaultTabController(
      initialIndex: 1,
      length: 3,
      child: Scaffold(
        appBar: AppBar(
          title: const Text('Appbar'),
          notificationPredicate: (ScrollNotification notification) {
            return notification.depth == 1;
          },
          bottom: const TabBar(
            tabs: <Widget>[
              Tab(
                icon: Icon(Icons.cloud_outlined),
                text: 'Cloud',
              ),
              Tab(
                icon: Icon(Icons.beach_access_sharp),
                text: 'Beach',
              ),
              Tab(
                icon: Icon(Icons.brightness_5_sharp),
                text: 'Beach',
              ),
            ],
          ),
        ),
        body: TabBarView(
          children: <Widget>[
            Center(
              child: ListView.builder(
                itemCount: 100,
                itemBuilder: (BuildContext context, int index) {
                  return const Center(child: Text("It's cloudy here"));
                },
              ),
            ),
            Center(
              child: ListView.builder(
                itemCount: 100,
                itemBuilder: (BuildContext context, int index) {
                  return const Center(child: Text("It's s here"));
                },
              ),
            ),
            Center(
              child: ListView.builder(
                itemCount: 100,
                itemBuilder: (BuildContext context, int index) {
                  return const Center(child: Text("It's sunny here"));
                },
              ),
            ),
          ],
        ),
        // body: ListView.builder(
        //   itemCount: 100,
        //   itemBuilder: (BuildContext context, int index) {
        //     return const Center(child: Text("It's cloudy here"));
        //   },
        // ),
      ),
    );
  }
}