didPop method
The Navigator popped route.
The route immediately below that one, and thus the newly active
route, is previousRoute.
Implementation
@override
void didPop(Route<dynamic> route, Route<dynamic>? previousRoute) {
_poppedRoutes.add(_history.last);
_history.removeLast();
_historyChangeStreamController.add(RxGoHistoryChange(
action: RxGoNavigationStackAction.pop,
newRoute: route,
oldRoute: previousRoute,
));
}