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Create An Application From Scratch In Flutter

Steps

1. Import the material.dart namespace using the following code

import 'package:flutter/material.dart';



This namespace contains the widgets to create material design in flutter. You can come to know about widgets in later articles.


2. Create a new class and inherit it with StatelessWidget class.

class MyApp extends StatelessWidget {
  Widget build(BuildContext context) {
    return MaterialApp(home: Text("Hello"));
  }
}



Here we have inherited an abstract class, so it is mandatory to implement build method of the StatelessWidget class. Inside the build method, we are returning a widget that contains the text ‘Hello’.


3. Finally, create a main method. Inside the main method, we are calling the class ‘MyApp’ inside runApp method.

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

Complete Code

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  Widget build(BuildContext context) {
    return MaterialApp(home: Text("Hello"));
  }
}