Flutter back navigation doesnt trigger RouteAware didPop() - flutter

Question

My goal is to track routes being presented and dismissed for analytics purposes like described on this article: https://medium.com/flutter-community/how-to-track-screen-transitions-in-flutter-with-routeobserver-733984a90dea
I am pushing a CupertinoPageRoute and passing a Widget to it that implements the RouteAware Mixin.
final RouteObserver<PageRoute> routeObserver = RouteObserver<PageRoute>();
return CupertinoApp(
...
navigatorObservers: [routeObserver],
}
Pushing like so:
Navigator.of(context).push(
CupertinoPageRoute(builder: (context) => MyWidget()),
);
The Widget
class MyWidget extends StatefulWidget {
MyWidget({Key key}) : super(key: key);
#override
_MyWidgetState createState() => _MyWidgetState();
}
class _MyWidgetState extends State<MyWidget> with RouteAware {
#override
void didChangeDependencies() {
super.didChangeDependencies();
routeObserver.subscribe(this, ModalRoute.of(context));
}
#override
void dispose() {
routeObserver.unsubscribe(this);
super.dispose();
}
#override
void didPop() {
print('never called');
}
#override
void didPopNext() {
print('never called');
}
#override
Widget build(BuildContext context) {
return Container(
child: Column(
children: [
CupertinoNavigationBar(
middle: Text('42'),
),
],
),
);
}
}
The didPop() method is never called when popping a CupertinoPageRoute with the back button unless I push with rootNavigator = true which is not what I want.
How can I fix this?
EDIT: This behavior only happens when pushing routes from a CupertinoTabView, as it creates a new nested navigator.
Github Issue

Answer 1

If I understand correctly, the final solution shown in the Medium article does not extend every StatefulWidget with RouteAware. Instead, it extents its own implementation of a RouteObserver to get notified about every route change.
Using this approach, you should be able to insert your custom RouteObserver into both you main App as well as your CupertinoTabView to achieve what you need.