How to access the flutter ModalRoute<T>?

[Adam-Langley]

I have an application consisting of nested routers, and when state changes in my root route, I need to force an update in a child route.
Usually (when not using auto_route) I would access the ModalRoute, and call changedExternalState - triggering a rebuild.
How can I access the native ModalRoute object constructed within auto_route, so that I can call this method?

Thanks!

[Milad-Akarie]

Hey @Adam-Langley unless the route you're working with is a tab-page you should be able to access it the same?
how do you usually access the ModalRoute?

[Adam-Langley]

Hey @Milad-Akarie - thanks for responding.

Usually, I am just pushing auto routes...

 AutoRouter.of(context)
    .navigate(MyAutoRoute());

However, the "MyAutoRoute" is an instance of PageRouteInfo, not a ModalRoute... I dont see how to get access to the internal native class that would normally expose the 'changedExternalState' function.

I have some dialogs that dont fit the auto_route way of doing things, so I wrap them in a ModalRoute - and that does expose the changedExternalState - so I have no trouble sending them message to ask them to rebuild.

How do I do it with auto_route?

I realise I could inject some argument exposing some kind of function pointer I can use to trigger setState... however I'd rather use what's already in the framework...

[Milad-Akarie]

@Adam-Langley so your goal is to rebuild a modal from outside it's scope.

Guess you can try to re-navigate to the same page if its the top page of course

[Adam-Langley]

Hey - yes indeed that's the goal. Ok - so mainly I was checking that I wasn't completely blind, and not seeing the function declaration....

[Milad-Akarie]

@Adam-Langley changedExternalState is a protected method and I wouldn't recommend using it, idealy I'd do the refresh task using a state managment solution or some event bus. that being said you can access the top route inside the navigator doing something like this
router.pagelessRoutesObserver.current?

[Adam-Langley]

Thanks @Milad-Akarie - I'll look into that - it might do the trick