In a Nested Navigator Structure of Flutter, How do you get the a Specific Navigator?

Most of the time, you’ll have only 2 Navigator.

Which means to obtain the nested one, do:

Navigator.of(context)

And to obtain the root one do:

Navigator.of(context, rootNavigator: true)

For more complex architecture, the easiest by far is to use GlobalKey (since you’ll never read Navigators during build)

final GlobalKey<NavigatorState> key =GlobalKey();
final GlobalKey<NavigatorState> key2 =GlobalKey();

class Foo extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      navigatorKey: key,
      home: Navigator(
        key: key2,
      ),
    );
  }
}

Which you can then use this way:

key.currentState.pushNamed('foo')