flutter_bnb_tut

.\lib\main.dart

import 'package:flutter/material.dart';
// Here will be code
void main() => runApp(Main());

class Main extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter BottomNavigationBar Tutorial',
      theme: ThemeData(
        primarySwatch: Colors.red,
      ),
      home: MainPage(),
    );
  }
}

class MainPage extends StatefulWidget {
  @override
  _MainPageState createState() => _MainPageState();
}

class _MainPageState extends State<MainPage> {
  // Here will be code
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("Flutter BottomNavigationBar Tutorial"),
      ),
      body: _children[_currentIndex],
      bottomNavigationBar: BottomNavigationBar(
        currentIndex: _currentIndex,
        onTap: _onBottomNavBarTab,
        items: [
          BottomNavigationBarItem(
            icon: Icon(Icons.home),
            title: Text('Home'),
          ),
          BottomNavigationBarItem(
            icon: Icon(Icons.mail),
            title: Text('Messages'),
          ),
          BottomNavigationBarItem(
            icon: Icon(Icons.person),
            title: Text('Profile'),
          )
        ],
      ),
    );
  }
}