Tabbar Step 6:

Step 6: Finally, open the main.dart file and insert the following code

import 'package:flutter/material.dart';  
import './FirstScreen.dart';  
import './SecondScreen.dart';  
  
void main() => runApp(MyApp());  
  
class MyApp extends StatelessWidget {  
  @override  
  Widget build(BuildContext context) {  
    return MaterialApp(  
      home: DefaultTabController(  
        length: 2,  
        child: Scaffold(  
          appBar: AppBar(  
            title: Text('Flutter Tabs Demo'),  
            bottom: TabBar(  
              tabs: [  
                Tab(icon: Icon(Icons.contacts), text: "Tab 1"),  
                Tab(icon: Icon(Icons.camera_alt), text: "Tab 2")  
              ],  
            ),  
          ),  
          body: TabBarView(  
            children: [  
              FirstScreen(),  
              SecondScreen(),  
            ],  
          ),  
        ),  
      ),  
    );  
  }  
}  

Output

Now, run the app in your Android Studio. It will give the following screen where you can see two tab icons. So when you click any of the tab icons, it will display the associated screen.