How do I play an animation each time a widget is updated, like the default News widget?

I know that I can't directly use animations on RemoteViews, but it is possible at least to add a LayoutAnimation - however this only plays the first time the widget is added.

I was going to accept that was the end of it, but then remembered that the default News/weather widget (at least on 2.1 up) plays an animation each time the news changes.

Does anyone have any ideas as to how this is accomplished, or does exploit a private API or do something 开发者_Python百科that generally cannot be done with the SDK?

This has been answered over on the Android Developers group.

In API Level 7 and above ViewFlipper is a valid RemoteViews view type.