listview - Android: Tweetie Style List Refresh -

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I came from an iPhone background and writing Android app.

I've got a list cached locally, but the primary is stored on our webserver because the app is an interface for our service. I really want the user to have an easy way to refresh the list. That's why I am trying to replicate the Twei pulldown to refresh the list.

Does anyone know how to hide the inventory header row, so Android believes that the top is the first list item, and it naturally stops scrolling there, but if If you drag the list down, then it shows the "Refresh" header which remains on the screen until it is refreshed and then goes back up?

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