Bottom Bar show on all pages about custom-navigator

[ayham95]

You can easily do that by calling the root navigator.. As sample app says:

the mainNavigatorKey is the root navigator!

//give a navigator key to [MaterialApp] if you want to use the default navigation
//anywhere in your app eg: line 15 & line 93
GlobalKey<NavigatorState> mainNavigatorKey = GlobalKey<NavigatorState>();

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      navigatorKey: mainNavigatorKey,
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}