Feat: UserExceptionDialog using ScaffoldMessengaer

[SunlightBro]

UserExceptionDialog was written before flutter had Navigator 2.0 and the new scaffold-messenger

At the moment it still requires to place a UserExceptionDialog<St> in between the MaterialApp and the HomePage Widget, which makes it hard to work with MaterialApp.router.

If possible the best case would be, to not require a UserExceptionDialog Widget at all
and instead directly use the ScaffoldMessenger to display the UserException with a SnackBar.
But this would be a breaking change, so let me know if this is something you want.

[marcglasberg]

I have no experience with Navigator 2.0. Is there a way to make what you propose without a breaking change? So that both Navigator 1 and 2 users could be happy with it?

[kuhnroyal]

You can just use the getAndRemoveFirstError() function.
For example in a view model as Event(getAndRemoveFirstError()) and then consume it in some widgets didUpdateWidget function or in a StoreConnector.onDidChange.

In the end you just need to map the event/error into a call to ScaffoldMessenger.of(context).showSnackBar and make sure you consume the event.