Detect pushed routes on Flutter

Question

How can I check if a named route is currently on the stack? I do not want to build a new route every time the user pushes a named route that already exists.

Also, is the

Answer 1

https://docs.flutter.io/flutter/widgets/RouteObserver-class.html allows you to listen to route changes and maintain a copy of the stack yourself where you can look up existing routes.

You can also upvote this issue https://github.com/flutter/flutter/pull/22408 that exposes the history stack.