Android : Can I Share Preferences Between Apps?

I have a need to share preferences between two apps, where one app writes the preferences and the other needs read only access.

I notice that there is this API available in Context :

public abstract SharedPreferences getSharedPreferences (String name, int mode). Where I can set the mode to : MODE_WORLD_READABLE which according to docs means that it will allow all other applications to have read access to the created file.

My question is : What should be my filename so that the file gets created and is shared between the apps.

If I give a relative path (getSahredPrefs("filename", MODE_WORLD_READABLE)) then it gets created in the "data" directory of the writing app and the other non creating application is not able to get to it using the same arguments i.e. - getSahredPrefs("filename", MODE_WORLD_READABLE).

So I assume I need to provide a absolute path - something like ("/data/ data/<pkgname>/<subdir>/filename", MODE_WORLD_READABLE) but I do not know how to construct that generically using provided APIs so that it works on every Android phone/image.