bottom-navigation-bar_sample.dart

import 'package:flutter/material.dart';
import 'new_task.dart';

void main() => runApp(new TaskyApp());

final mTitle = "Tasks";

class TaskyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: HomePage(),
      //... another code
    );
  }
}

//Home Page
class HomePage extends StatefulWidget {
  // code removed for brevity
}

// Home Page state
class _HomePageState extends State<HomePage> {

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      bottomNavigationBar: BottomNavigationBar(
        currentIndex: 0,
        fixedColor: Colors.black,
        items: <BottomNavigationBarItem>[
          BottomNavigationBarItem(
              icon: new Icon(Icons.home),
              title: new Text("")
          ),
          BottomNavigationBarItem(
              icon: new Icon(Icons.calendar_today),
              title: new Text("")
          ),
          BottomNavigationBarItem(
              icon: new Icon(Icons.playlist_add_check),
              title: new Text("")
          )
        ],
      ),
      // code removed for brevity
    );
  }
}