[Bug]: MAUI: Animators may only be run on Looper threads exception after updating to 22.1.1 version

[Daxter98]

Describe the bug 🐞

After installing or updating to the latest version of ReactiveUI, an exception is thrown about Looper threads when you create a property and a command to update its value. This is related to UI updates from a thread other than the UI thread.

Step to reproduce

1. Create a new project
2. Install ReactiveUI 22.1.1
3. Create a simple VM with a Property and a Command.
4. Bind both the command and the property to the UI
5. See error

Reproduction repository

https://github.com/Daxter98/RxDemoApp

Expected behavior

It should change the value of the property.

Screenshots 🖼️

No response

IDE

Visual Studio Code

Operating system

Linux

Version

No response

Device

Motorola Edge 50 Pro

ReactiveUI Version

22.1.1

Additional information ℹ️

I tried using this builder I found on another issue, #4147 , below the initial maui builder

RxAppBuilder.CreateReactiveUIBuilder()
.WithMaui()
.Build();

Tried using MainThread.BeingInvokeOnMainThread inside the method, setting outputScheduler to RxSchedulers.MainThreadScheduler and nothing worked.

DOTNET VERSION: 10.0-rc2
Platforms Tested: Android, iOS.
Happens in both Release and Debug mode.

If I go back to version 20.4.1 it works perfectly.

[glennawatson]

#4180 (comment)

likely related to this bug.

[glennawatson]

#4192

I believe that might fix your issue.

[bfmyr4]

I'm still getting this error with 22.2.1. I have this snippet in my MauiProgram.cs right after the MapAppBuilder is built:

    RxAppBuilder.CreateReactiveUIBuilder()
      .WithMaui()
      .Build();

[glennawatson]

I'm still getting this error with 22.2.1. I have this snippet in my MauiProgram.cs right after the MapAppBuilder is built:

    RxAppBuilder.CreateReactiveUIBuilder()
      .WithMaui()
      .Build();

What target frameworks you using for Maui? Net8 was deprecated by Microsoft.

Checking just in case it is some tfm weirdness @bfmyr4 since we removed the deprecated versions.

[bfmyr4]

.net 9.0. android

I'm still getting this error with 22.2.1. I have this snippet in my MauiProgram.cs right after the MapAppBuilder is built:

    RxAppBuilder.CreateReactiveUIBuilder()
      .WithMaui()
      .Build();

What target frameworks you using for Maui? Net8 was deprecated by Microsoft.

Checking just in case it is some tfm weirdness @bfmyr4 since we removed the deprecated versions.

[glennawatson]

Will have a look, thanks for providing the update.