How to addContentView from Native Extension

Hi!

We're currently (still) working at a NativeExtension to show a GoogleMap in Android. What works so far is showing the map as a newActivity. But that doesn't suffice, as only the map or the underlying air-app can accept touch-events this way (If I'm wrong, please DO correct me). So I'm currently trying to add the view containing the map via addContentView to the air-app itself, but so far, no success. I'm assuming, that the whole air-app is only one activity. I'm trying this in the extension's onCreate-method:

                    View extensionview = LayoutInflater.from(context.getActivity().getBaseContext()).inflate(

                                        context.getResourceId("layout.activity_map"), null);

                    context.getActivity().addContentView(extensionview, new ViewGroup.LayoutParams(

                ViewGroup.LayoutParams.FILL_PARENT,

                ViewGroup.LayoutParams.FILL_PARENT));

where context is the FREContext from the function parameter. Doesn't work, any ideas, where the error is here?

Any hints appreciated!

Thanx, Marcus