[Android] SetIcon from ResourceId of Tab in TabLayout does not work

[sewautztje]

[Android] SetIcon from ResourceId of Tab in TabLayout does not work

[sewautztje]

Many thanks for the quick feedback and successful help! The problem was indeed R8 stripping, after I added the corresponding classes to proguard.cfg it works again.

[Cheesebaron]

This doesn't seem to be an error in MvvmCross code. Can you please provide more information of where you believe the error is in MvvmCross? Do you have a stack trace to which method in MvvmCross is setting the icon?

If you are setting it yourself, then where is MvvmCross at fault?

[sewautztje]

I also see that the bug is probably not in the MVVMCross code but in the Xamarin package, I'm just not able to downgrade the package because the version of MVVMCross uses it.... Is there a way to use the older version of the Xamarin.Google.Android.Material package anyway?

[Cheesebaron]

This happens both in debug and release mode for you?

If it doesn't happen in debug config, then it could be R8 stripping out the symbols.

As for downgrading, not sure NuGet will allow you to do so.
You could attempt to build MvvmCross yourself by checking out the repo, downgrading the one package in Directory.Packages.props and running dotnet tool restore then dotnet cake. It will produce nuget packages in the artifacts folder. You need to do this on a Windows machine and make sure you install the same workloads as I do here:

MvvmCross/azure-pipelines-shared.yml

Line 9 in 5d99b28

dotnet workload install android ios tvos macos maccatalyst maui-ios maui-android