Xamarin.Google.Android.Play.App.Update : 2.1.0.9

_This issue has been moved from [a ticket on Developer Community](https://developercommunity.visualstudio.com/t/XamarinGoogleAndroidPlayAppUpdate-:/10721137)._

---
[severity:It bothers me. A fix would be nice]
**DotNet-8.0-Android : In-App Update Build Failing**

Using Nuget package **Xamarin.Google.Android.Play.Core.AppUpdate (Version: 2.1.0.9)**
Build Is Failing with this error:
**1. Home_AppUpdateInstallUpdateListner is not abstract and does not override abstract method onStateUpdate(InstallState) in StateUpdatedListener
public class Home_AppUpdateInstallUpdateListner**

**2. name clash: onStateUpdate(Object) in Home_AppUpdateInstallUpdateListner and onStateUpdate(InstallState) in StateUpdatedListener have the same erasure, yet neither overrides the other public void onStateUpdate (java.lang.Object p0)**

**Code I'm Using :** FileName : Home.cs

```
using Xamarin.Google.Android.Play.Core.AppUpdate;
using Xamarin.Google.Android.Play.Core.AppUpdate.Install;
using Xamarin.Google.Android.Play.Core.AppUpdate.Install.Model;

public IAppUpdateManager? AppUpdateManager;
private AppUpdateInstallUpdateListner? MyInstallUpdateListner;
public const int AppUpdateTypeSupported = AppUpdateType.Flexible;

protected override void OnCreate(Bundle? savedInstanceState)
{
base. OnCreate(savedInstanceState);
HomeLayout = BindingHome.Inflate(LayoutInflater);
SetContentView(HomeLayout.Root);
try
{
OneSignal.Notifications.RequestPermissionAsync(true);
App.SetUserId();
AppUpdateManager = AppUpdateManagerFactory.Create(this);
MyInstallUpdateListner = new AppUpdateInstallUpdateListner(AppUpdateManager);
AppUpdateManager.RegisterListener(MyInstallUpdateListner);
var AppUpdateInfoTask = AppUpdateManager.GetAppUpdateInfo();
AppUpdateInfoTask.AddOnSuccessListener(new InAppUpdateSuccessListener(AppUpdateManager, this));
}
catch (Exception Ex) { App.ReportError(Ex); }
}

public class InAppUpdateSuccessListener(IAppUpdateManager? AppUpdateManager, Activity? Home) : Java.Lang.Object, IOnSuccessListener
{
private readonly IAppUpdateManager? AppUpdateManager = AppUpdateManager;
private readonly Activity? Home = Home;

public void OnSuccess(Java.Lang.Object result)
{
if (result is not AppUpdateInfo EInfo)
{
return;
}

if (EInfo.InstallStatus() == InstallStatus.Downloaded)
{
AppUpdateManager?. CompleteUpdate();
return;
}

int IAvailability = EInfo.UpdateAvailability();
if ((IAvailability.Equals(UpdateAvailability.UpdateAvailable) ||
IAvailability.Equals(UpdateAvailability.DeveloperTriggeredUpdateInProgress)) &&
EInfo.IsUpdateTypeAllowed(AppUpdateType.Immediate))
{
AppUpdateOptions? Options = AppUpdateOptions.NewBuilder(AppUpdateTypeSupported). Build();
AppUpdateManager?. StartUpdateFlow(EInfo, Home, Options);
}
}
}

public class AppUpdateInstallUpdateListner(IAppUpdateManager? AppUpdateManager) : Java.Lang.Object, IInstallStateUpdatedListener
{
public IAppUpdateManager? AppUpdateManager = AppUpdateManager;

public void OnStateUpdate(Java.Lang.Object p0)
{

if (p0 is not InstallState state)
{
return;
}

if (state. InstallStatus() == InstallStatus.Downloaded)
{
AppUpdateManager?. CompleteUpdate();
}
}
}
```

---
### Original Comments

#### Feedback Bot on 14/08/2024, 03:38 AM:

We have directed your feedback to the appropriate engineering team for further evaluation. The team will review the feedback and notify you about the next steps.

#### Dean Ellis [MSFT] on 10/10/2024, 11:24 AM:

Hi

There is a problem with Binding generics in C#. Unfortunately the API you want to use has generics.

To work around this you can take a look at something we did for Asset Delivery https://github.com/xamarin/GooglePlayServicesComponents/blob/main/source/com.google.android.play/asset.delivery.extensions/extensions-aar/src/main/java/xamarin/google/android/play/core/assetpacks/AssetPackStateUpdateListenerWrapper.java.

The idea is you write a Wrapper class which exposes a non generic API to C#. You can then add this java file to your project with a AndroidJavaSource build action. It will bind it just before the build and your new API should show up.

The source code I have linked to should give you an idea of what to do.

#### Dean Ellis [MSFT] on 10/10/2024, 07:03 PM:

I put together a sample for you

package xamarin.google.android.play.core.install;


import com.google.android.play.core.install.InstallStateUpdatedListener;

import com.google.android.play.core.install.InstallState;

public class InstallStateUpdatedListenerWrapper {

    private InstallStateUpdatedListener installStateUpdatedListener = state -> {

        onStateUpdate (state);

    };

    void onStateUpdate(InstallState state)

    {

        if (stateUpdateListener != null)

            stateUpdateListener.OnStateUpdate(state);

    }

    public InstallStateUpdatedListener GetListener()

    {

        return installStateUpdatedListener;

    }

    public interface InstallStateListener {

        /**

         * Called when an the State is Updated

         *

         * @param state The Install Session State.

         */

        abstract void OnStateUpdate (InstallState state);

    }

    private InstallStateListener stateUpdateListener = null;

    public void setStateUpdateListener (InstallStateListener listener)

    {

        stateUpdateListener = listener;

    }

}

and the C# side will be

var installListener = new InstallStateUpdatedListenerWrapper();

installListener.StateUpdate += (sender, args) => {

   // do stuff.

};

I did however have to add this to my csproj

  <Target Name="_Foo" AfterTargets="ResolveAndroidTooling" BeforeTargets="_CompileBindingJava">

  <ItemGroup>

    <_ReferenceJavaLibs Include="$(AndroidSdkBuildToolsPath)core-lambda-stubs.jar" />

  </ItemGroup>