How to add Navigation Drawer below App Bar in Flutter

In this Google flutter code example we are going to learn how to add Navigation Drawer below App Bar in Flutter.

You can copy and adopt this source code example to your Flutter project without reinventing the wheel.

The code is based on flutter version 1.0.0

Main.dart (App entry point)

import 'package:flutter/material.dart';
import 'new_tonew_page_drawer_task-10.dark';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        // This is the theme of your application.
        //
        // Try running your application with "flutter run". You'll see the
        // application has a blue toolbar. Then, without quitting the app, try
        // changing the primarySwatch below to Colors.green and then invoke
        // "hot reload" (press "r" in the console where you ran "flutter run",
        // or simply save your changes to "hot reload" in a Flutter IDE).
        // Notice that the counter didn't reset back to zero; the application
        // is not restarted.
        primarySwatch: Colors.blue,
      ),
      home: NavToNewPageDrawer(),
    );
  }
}

new_tonew_page_drawer_task-10.dark

import 'package:flutter/material.dart';

class NavToNewPageDrawer extends StatelessWidget {
  static final List<String> _listViewData = [
    "Inducesmile.com",
    "Flutter Dev",
    "Android Dev",
    "iOS Dev!",
    "React Native Dev!",
    "React Dev!",
    "express Dev!",
    "Laravel Dev!",
    "Angular Dev!",
  ];

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("Navigate to new Screens Drawer Example"),
      ),
      drawer: Drawer(
        child: Align(
          alignment: Alignment.bottomCenter,
          child: Container(
            child: ListView(padding: EdgeInsets.all(10.0), children: [
              ListTile(
                title: Text("Go to First Screen"),
                onTap: () {
                  Navigator.of(context).push(
                      MaterialPageRoute<Null>(builder: (BuildContext context) {
                    return new FirstScreen();
                  }));
                },
              ),
              ListTile(
                title: Text("Go to Second Screen"),
                onTap: () {
                  Navigator.of(context).push(
                      MaterialPageRoute<Null>(builder: (BuildContext context) {
                    return new SecondScreen();
                  }));
                },
              )
            ]),
          ),
        ),
      ),
      body: Center(
        child: Text('Main Body'),
      ),
    );
  }
}

class FirstScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("First Screen"),
      ),
      body: Center(
        child: RaisedButton(
          color: Colors.red,
          child: Text("Go Back"),
          onPressed: () {
            Navigator.of(context).pop();
          },
        ),
      ),
    );
  }
}

class SecondScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("Second Screen"),
      ),
      body: Center(
        child: RaisedButton(
          color: Colors.red,
          child: Text("Go Back"),
          onPressed: () {
            Navigator.of(context).pop();
          },
        ),
      ),
    );
  }
}

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