How To Implement A Bottom Navigation Drawer Using Flutter

import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  @override
  MyHomePageState createState() {
    return new MyHomePageState();
  }
}

class MyHomePageState extends State<MyHomePage> with SingleTickerProviderStateMixin {
  static final List<String> _listViewData = [
    "CSS",
    "Flutter",
    "PHP",
    "HTML",
    "LARAVEL",
    "JAVASCRIPT",
    "JQUERY",
  ];

  _showDrawer() {
    showModalBottomSheet(
        context: context,
        builder: (context) {
          return Container(
            color: Colors.red[700],
            child: ListView(
              children: [
                Column(
                  mainAxisSize: MainAxisSize.min,
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: _listViewData
                      .map((data) => ListTile(
                    title: Text(data,style: TextStyle(color: Colors.white),),
                  ))
                      .toList(),
                )
              ],
            ),
          );
        });
  }
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        backgroundColor: Colors.red[900],
        title: Text(" Bottom Nav Drawer"),
      ),
      bottomNavigationBar: BottomAppBar(
        child: Container(
          padding: EdgeInsets.symmetric(horizontal: 10.0),
          height: 50.0,
          child: Row(
            children: <Widget>[
              IconButton(
                icon: Icon(Icons.menu),
                onPressed: _showDrawer,
              )
            ],
          ),
        ),
      ),
      body: Center(
        child: Text('Main Body'),
      ),
    );
  }
}