didPush method Null safety

  1. @override
void didPush(
  1. Route route,
  2. Route? previousRoute
)
override

The Navigator pushed route.

The route immediately below that one, and thus the previously active route, is previousRoute.

Implementation

@override
void didPush(Route<dynamic> route, Route<dynamic>? previousRoute) {
  if (route is R && previousRoute is R) {
    final Set<RouteAware>? previousSubscribers = _listeners[previousRoute];

    if (previousSubscribers != null) {
      for (final RouteAware routeAware in previousSubscribers) {
        routeAware.didPushNext();
      }
    }
  }
}