InvalidOperationException when using same callback scheme for WebAuthenticatorCallbackActivity and MainActivity

[shobanasuresh]

Description

We are encountering a System.InvalidOperationException with the message "You must subclass the WebAuthenticatorCallbackActivity and create an IntentFilter for it which matches your callbackUrl" when we try to use the same callback scheme for WebAuthenticatorCallbackActivity and MainActivity in our project.

This issue is preventing us from using the same callback scheme across these 2 activities, which is a requirement in our project.
We have a single callback scheme assigned to our app. And, we have a requirement to use this scheme for both WebAuthenticatorCallbackActivity(initial login workflow) and also with MainActivity(to launch our app from other apps)

Steps to Reproduce

1. Create a new maui app
2. Follow instructions for WebAuthenticator for Android https://learn.microsoft.com/en-us/dotnet/maui/platform-integration/communication/authentication?view=net-maui-8.0&tabs=android
3. Use the same callback scheme for WebAuthenticatorCallbackActivity and MainActivity.
   e.g.,

[Activity(Theme = "@style/Maui.SplashTheme", MainLauncher = true, NoHistory = true, LaunchMode = LaunchMode.SingleTask, Exported = true, ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation | ConfigChanges.UiMode | ConfigChanges.ScreenLayout | ConfigChanges.SmallestScreenSize | ConfigChanges.Density)]
[IntentFilter(new[] { Android.Content.Intent.ActionView },
                Categories = new[] {
                    Android.Content.Intent.CategoryDefault,
                    Android.Content.Intent.CategoryBrowsable },
                DataScheme = "my-app")]

public class MainActivity : MauiAppCompatActivity

[Activity(NoHistory = true, LaunchMode = LaunchMode.SingleTask, Exported = true)]
[IntentFilter(new[] { Android.Content.Intent.ActionView },
                Categories = new[] {
                    Android.Content.Intent.CategoryDefault,
                    Android.Content.Intent.CategoryBrowsable },
                DataScheme = CALLBACK_SCHEME)]
public class MyWebAuthenticationCallbackActivity : global::Microsoft.Maui.Authentication.WebAuthenticatorCallbackActivity
{
    const string CALLBACK_SCHEME = "my-app";
}

3. Run the application.
4. Observe the System.InvalidOperationException.

Expected behavior:
The application should run without throwing an exception, allowing the same callback scheme to be used across different activities.

Actual behavior:
The application throws a System.InvalidOperationException when the same callback scheme is used for WebAuthenticatorCallbackActivity and MainActivity.

We would appreciate any guidance or fixes for this issue. Thank you.

Link to public reproduction project repository

No response

Version with bug

8.0.7 SR2

Is this a regression from previous behavior?

Not sure, did not test other versions

Last version that worked well

Unknown/Other

Affected platforms

Android

Affected platform versions

No response

Did you find any workaround?

No response

Relevant log output

No response

[Redth]

I'm not able to reproduce it with the steps you shared. The app runs fine for me with both intent filters using the same data scheme (though I'm not sure this is really the right way to achieve what you're after?).

Please add a repro to this issue.

[dotnet-policy-service]

Hi @shobanasuresh. We have added the "s/needs-repro" label to this issue, which indicates that we require steps and sample code to reproduce the issue before we can take further action. Please try to create a minimal sample project/solution or code samples which reproduce the issue, ideally as a GitHub repo that we can clone. See more details about creating repros here: https://github.com/dotnet/maui/blob/main/.github/repro.md

This issue will be closed automatically in 7 days if we do not hear back from you by then - please feel free to re-open it if you come back to this issue after that time.

[dotnet-policy-service]

This issue has been automatically marked as stale because it has been marked as requiring author feedback to reproduce the issue but has not had any activity for 4 days. It will be closed if no further activity occurs within 3 days of this comment. If it is closed, feel free to comment when you are able to provide the additional information and we will re-investigate.

[dotnet-policy-service]

This issue has been automatically marked as stale because it has been marked as requiring author feedback to reproduce the issue but has not had any activity for 4 days. It will be closed if no further activity occurs within 3 days of this comment. If it is closed, feel free to comment when you are able to provide the additional information and we will re-investigate.