[Question] ViewModel initialization

[FabriBertani]

Hi @dhindrik, I wondered why the TinyViewModel initialization, OnAppearing and OnDisappearing methods are running on the main thread (especially the initialization and OnAppearing) from the TinyView?
There are cases when viewmodels can run some kind of heavy operations on page load and since these methods are fired originally from the main thread, it can add a lot of work and stress, despite having a fire-and-forget mechanism.

[dhindrik]

They are running on the main thread. https://github.com/dhindrik/TinyMvvm/blob/main/src/TinyMvvm.Maui/TinyView.cs

[FabriBertani]

I mean, why not fire them from another thread using Task.Run to avoid overloading the main thread with logic stuff from the VMs ?

[dhindrik]

My idea was that it should be easy to use. Often people don't do heavy stuff there. It is async so it will not block the UI even if you do a http call.
If I do heavy stuff there I use to add a Task.Run there instead.

If the not was on the UI thread, there would definitely be people creating issues, "UI is not updating when setting properties"