Are you sure that this is the assignment? You can force two applications to have the same UID by using an attribute of the <manifest> element in AndroidManifest.xml. This is documented in Security and Permissions, http://developer.android.com/guide/topics/security/security.html. This guide also describes the ramifications of sharing a UID. Once you do this, the two application are treated as "one" by Android, so they share the same "sandbox". This means that a file written by one can be read by another. To share a variable, you could create an object and then serialize it to a file.
However, I strongly recommend against doing this sort of thing. It's not the way Android is designed to work. Applications should avoid knowing too much about one another. An application A should use common APIs to send information to an application B, with the assumption that B could be anything. In summary, I think it's a bad assignment. -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
