Navigation Drawer

main.dart

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  final appTitle = 'Drawer Demo';

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: appTitle,
      home: MyHomePage(title: appTitle),
    );
  }
}

class MyHomePage extends StatelessWidget {
  final String title;

  MyHomePage({Key key, this.title}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text(title)),
      body: Center(child: Text('Content')),
      drawer: Drawer(
        child: ListView(
          padding: EdgeInsets.zero,
          children: <Widget>[
            ListTile(
              title: Text('Acount'),
              onTap: () {
                  showDialog<bool>(
                    context: context,
                    builder: (BuildContext context) {
                      return AlertDialog(
                      content: const Text('Do you want logout?'),
                      actions: <Widget>[
                        FlatButton(
                          child: const Text('No'),
                          onPressed: () {
                            Navigator.of(context).pop(false);
                          },
                        ),
                        FlatButton(
                          child: const Text('Yes'),
                          onPressed: () {
                            Navigator.of(context).pop(true);
                          },
                        ),
                      ],
                    );
                  },
                );
              },
            ),
            ListTile(
              title: Text('Terms of service'),
              onTap: () {
                // Dummy Navigation
                Navigator.pop(context);
              },
            ),
            ListTile(
              title: Text('About'),
              onTap: () {
                showAboutDialog(
                  context:context,
                  applicationName: 'Navigation Drawer',
                  applicationVersion: '1.0.0',
                );
              },
            ),
          ],
        ),
      ),
    );
  }
}