microg/GmsCore · error · UnsupportedOperationException

onCreateView not allowed on StreetViewPanoramaViewDelegate

Error message

onCreateView not allowed on StreetViewPanoramaViewDelegate

What it means

StreetViewPanoramaViewDelegate.onCreateView(LayoutInflater, ViewGroup, Bundle) is deliberately unsupported: StreetViewPanoramaView owns its view creation through its container, so inflation via the delegate is treated as misuse and throws UnsupportedOperationException unconditionally.

Solutions

1. Create the panorama via StreetViewPanoramaView (constructed with StreetViewPanoramaOptions) and forward only its supported lifecycle callbacks.
2. In a Fragment, instantiate StreetViewPanoramaView in onCreateView yourself and return it.
3. Remove any onCreateView forwarding to the delegate.
4. Prefer StreetViewPanoramaFragment/SupportStreetViewPanoramaFragment when fragment embedding is acceptable.

Example fix

// before
@Override
public View onCreateView(LayoutInflater inf, ViewGroup p, Bundle s) {
    return delegate.onCreateView(inf, p, s); // always throws
}
// after
@Override
public View onCreateView(LayoutInflater inf, ViewGroup p, Bundle s) {
    streetViewPanoramaView = new StreetViewPanoramaView(getContext(), options);
    streetViewPanoramaView.onCreate(s);
    return streetViewPanoramaView;
}

public static boolean supportsViewCreation(LifecycleDelegate d) {
    return !(d instanceof StreetViewPanoramaViewDelegate);
}

try {
    view = delegate.onCreateView(inflater, parent, savedInstanceState);
} catch (UnsupportedOperationException e) {
    view = streetViewPanoramaView; // use the owning view instead
}

When it happens

Trigger: Calling streetViewPanoramaViewDelegate.onCreateView(...) directly, or a Fragment's onCreateView forwarding to the delegate instead of using StreetViewPanoramaView.

Common situations: Embedding Street View in custom Fragments with hand-written lifecycle plumbing, porting Google Maps SDK internal delegate usage to microG, or frameworks that invoke every delegate lifecycle method blindly.

Understand the failure class

Background: UnsupportedOperationException and "is not supported" errors: when a library deliberately refuses a call — this error's family across 30 libraries.

Related errors

• onDestroyView not allowed on StreetViewPanoramaViewDelegate
• onInflate not allowed on StreetViewPanoramaViewDelegate
• onCreateView not allowed on MapViewDelegate
• onDestroyView not allowed on MapViewDelegate
• onInflate not allowed on MapViewDelegate

AI-assisted analysis of microg/GmsCore@157c9d86ac (2026-09-06). Data as JSON: /api/errors/78e2071a4483a3d6. Report an issue: GitHub.

Appendix: source

Thrown at play-services-maps/src/main/java/org/microg/gms/maps/StreetViewPanoramaViewDelegate.java:34

import com.google.android.gms.dynamic.ObjectWrapper;
import com.google.android.gms.maps.OnStreetViewPanoramaReadyCallback;
import com.google.android.gms.maps.StreetViewPanorama;
import com.google.android.gms.maps.internal.*;
import com.google.android.gms.maps.model.RuntimeRemoteException;

public class StreetViewPanoramaViewDelegate implements StreetViewLifecycleDelegate {
    private final ViewGroup container;
    private final IStreetViewPanoramaViewDelegate delegate;
    private View view;

    public StreetViewPanoramaViewDelegate(ViewGroup container, IStreetViewPanoramaViewDelegate delegate) {
        this.container = container;
        this.delegate = delegate;
    }

    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup parent, @Nullable Bundle savedInstanceState) {
        throw new UnsupportedOperationException("onCreateView not allowed on StreetViewPanoramaViewDelegate");
    }

    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        try {
            Bundle temp = new Bundle();
            MapsBundleHelper.transfer(savedInstanceState, temp);
            delegate.onCreate(temp);
            MapsBundleHelper.transfer(temp, savedInstanceState);
            view = (View) ObjectWrapper.unwrap(delegate.getView());
            container.removeAllViews();
            container.addView(view);
        } catch (RemoteException e) {
            throw new RuntimeRemoteException(e);
        }
    }

    @Override

View on GitHub (pinned to 157c9d86ac)