popRoute method Null safety

  1. @override
Future<bool> popRoute()

Called by the Router when the Router.backButtonDispatcher reports that the operating system is requesting that the current route be popped.

The method should return a boolean Future to indicate whether this delegate handles the request. Returning false will cause the entire app to be popped.

Consider using a SynchronousFuture if the result can be computed synchronously, so that the Router does not need to wait for the next microtask to schedule a build.


Future<bool> popRoute() {
  final NavigatorState? navigator = navigatorKey?.currentState;
  if (navigator == null) {
    return SynchronousFuture<bool>(false);
  return navigator.maybePop();