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In Virgil Dobjanschi talk during Google I/O he mentioned using Services for doing the fetching and then using a callback to notify the Activity when this was completed. He never went into specifics on how to implement this callback and I can’t seem to find anything helpful on this topic anywhere.
I think he said that you didn’t need to implement binding at all?
Any clues?
Check out the Google I/O 2010 app. It uses the pattern he was referring to. It uses Option #2 from CommonsWare’s answer.