title: How to add application footer (Using bottomNavigationBar)
body: <p>We can add a header using AppBar widget.</p>
  
  <pre><code>class HomePage extends StatelessWidget {
    @override
    Widget build(BuildContext context) {
      return new Scaffold(
        appBar: new AppBar(
          leading: new Icon(Icons.mail),
          title: new Text("Hello Flutter Header"),
        ),
        body: new Center(
          child: new MyButton(),
        ),
        // **************************************
        // I want to add application footer here
        // **************************************
      );
    }
  }
  </code></pre>
  
  <p>How can we add an Application Footer?</p>