[android-developers] Show a producer-consumer queue inside a Listview

I've a service which consume some tasks queued by an activity (this service uploads each queued video to a http server). I want to show the upload status in an activity (with a listview, like Youtube). What can I do to keep in sync the listview with the service progress?

I don't know if it's a best practice to store data to a SQLite db, then, when I open the activity containing the listview, I'll register a broadcast receiver which listen service changes notifications.

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