What is Scaffold ?

• A Scaffold Widget provides a framework which implements the basic material design visual layout structure of the flutter app. It provides APIs for showing drawers, snack bars and bottom sheets. Have a look at its constructor and the properties it has.

• 

•     const Scaffold({
        Key key,
        this.appBar,
        this.body,
        this.floatingActionButton,
        this.floatingActionButtonLocation,
        this.floatingActionButtonAnimator,
        this.persistentFooterButtons,
        this.drawer,
        this.endDrawer,
        this.bottomNavigationBar,
        this.bottomSheet,
        this.backgroundColor,
        this.resizeToAvoidBottomPadding = true,
        this.primary = true,
      })
  

• Example :

•     import 'package:flutter/material.dart';
  
      class One extends StatefulWidget {
        const One({super.key});
  
        @override
        State<One> createState() => _OneState();
      }
  
      class _OneState extends State<One> {
        @override
        Widget build(BuildContext context) {
          int num = 0;
  
          return Scaffold(
            appBar: AppBar(
  
              title: const Text('Scaffold Class'),
              backgroundColor: Colors.amber,
            ),
            drawer: Drawer(
              child: ListView(
                padding: const EdgeInsets.all(1),
                children: <Widget>[
                  Container(
                    height: 50,
                    color: Colors.blue,
                  ),
                  Container(
                    height: 200,
                    width: 200,
                    color: Colors.blue,
                    child: const Padding(
                      padding: EdgeInsets.only(left: 7),
                      child: Text(
                        'Scaffold Menu',
                        style: TextStyle(fontSize: 22),
                      ),
                    ),
                  ),
                  ListTile(
                    title: const Text('Profile'),
                    onTap: () {},
                    leading: const Icon(Icons.person),
                  ),
                  ListTile(
                    title: const Text('Search'),
                    onTap: () {},
                    leading: const Icon(Icons.search),
                  ),
                  ListTile(
                    title: const Text('Setting'),
                    onTap: () {},
                    leading: const Icon(Icons.settings),
                  ),
                ],
              ),
            ),
            body: Container(
              alignment: Alignment.center,
              height: double.infinity,
              width: double.infinity,
              color: Colors.lightBlueAccent,
              child: const Text(
                'Scaffold Class One! ',
                style: TextStyle(fontSize: 25),
                textAlign: TextAlign.center,
              ),
            ),
            floatingActionButton: FloatingActionButton(
              onPressed: () {
                num++;
                print(num);
              },
              shape: const CircleBorder(),
              child: const Icon(Icons.add),
            ),
            bottomNavigationBar: BottomNavigationBar(items: const [
              BottomNavigationBarItem(icon: Icon(Icons.person), label: 'Profile'),
              BottomNavigationBarItem(icon: Icon(Icons.search), label: 'Search'),
              BottomNavigationBarItem(icon: Icon(Icons.settings), label: 'Settings'),
            ]),
          );
        }
      }
  

• Output :