Stateless Widget

What is Stateless Widget?

A widget that require Immutable state i.e. the widgets state cannot be modified after it is created.

Stateless widget are useful when the part of the user interface only depends on the configuration information in the object itself and the BuildContext in which the widget is inflated.

BuildContext: A handle to the location of a widget in the widget tree.

Code snippet

Extend a class with StatelessWidget.

class StatelessWidgetDemo extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
  //...
  }
}

Demo Code

This example shows how to implement Stateless widgets.

import 'package:flutter/material.dart';

class StatelessWidgetDemo extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Center(
        child: Text(
      'Hello, world!',
      textDirection: TextDirection.ltr,
    ));
  }
}

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