Quick Start on main.dart

Follow these steps to set up a basic Flutter app in main.dart:

1. Open main.dart

2. Delete all existing code

3. Import material.dart: dart import 'package:flutter/material.dart';

4. Define the main() method: Every Dart program begins with the main() method. Here's a basic setup:

   void main() {
           runApp(MyApp()); // You can change the class name from MyApp to something else
   }
   

5. Start with a MaterialApp: Always initiate your Flutter app with a MaterialApp. Create a class, such as MyApp (feel free to rename it):

   class MyApp extends StatelessWidget {
       @override
       Widget build(BuildContext context) {
           return MaterialApp(
               home: MainScreen(), // This will be the main screen
               debugShowCheckedModeBanner: false, // Disable the debug banner
               routes: {},
           ); // MaterialApp
       }
   }
   

6. Create the main screen: You need to define a main screen class inside main.dart. Here is how to create one:

   class MainScreen extends StatelessWidget {
       static String routeName = '/';
   
       @override
       Widget build(BuildContext context) {
           return Scaffold(
               appBar: AppBar(
                   title: const Text('Simple App'),
               ),
               body: const Center(
                   child: Text('This is a sample Text widget'),
               ),
           );
       }
   }
   

7. Save your changes
8. Run the app: Execute your app in debug mode on Chrome.