Toast inside WeakReferenceMessenger event throws NULL

Is there an existing issue for this?

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Current Behavior

I´m trying to use a toast message inside a Handler for a weakreferencemessenger in my BaseViewModel. Calling await toast.Show results in a Null reference exception. I also tried to call it inside a Dispatch - same result.

Expected Behavior

the toast should be shown. Outside of a weakreferencemessenger callback it works without any problem.

Steps To Reproduce

Create a waekreference event. Create a handler for that event. Call toast inside the event.

Link to public reproduction project repository

Environment

- .NET MAUI CommunityToolkit: latest (8.0)
- OS: Android (11+)
- .NET MAUI: .net 7

Anything else?

No response

[VladislavAntonyuk]

Toast is ui component, so it must be executed on ui thread: Can’t toast on a thread that has not called Looper.prepare()

[FM1973]

Jup, when I call it on the main thread, everything works. Thanks!