Replace MvxSetup and related code with Microsoft.Extensions.Hosting

[Cheesebaron]

The trend in the .NET ecosystem looks to be to implement Microsoft.Extensions.Hosting to build the Application, setup various services, setup fonts (MAUI) and much more.

We should look into replacing MvxSetup and reworking the startup procedure of MvvmCross and adopt Microsoft.Extensions.Hosting.

While working on this, we should ditch MvxSplashScreen on Android, and move all startup to an instance of Application.

• Remove MvxSplashScreen
• Replace MvxSetup with implementation of Microsoft.Extensions.Hosting

[afernandes]

I'm trying to implement IoC and Hosting and make the adjustments to make MAUI work, but I'm having a problem that seems simple, but I'm not able to solve it...
I created a blank MAUI project (Playground.Maui) to do the tests, but I can't compile it.
I've already tried to make adjustments to csproj, Directory.Build.props, etc., but without success.

Can you help me?

https://github.com/afernandes/MvvmCross/tree/Maui

[afernandes]

I managed to get it to work by ignoring the Directory.Build.props in the Playground.Maui project for now.
I'm making good progress with the adjustments, but there's still a long way to go.