Can the "Buddies Now" widget be implemented with the standard Android launcher?

The Samsung Galaxy S includes the custom widget "Buddies Now". This widget implements a carousel that can be rotated with a a press-drag. Here's a description of the widget:

http://www.phonescoop.com/articles/article.php?a=389&p=2830&g=3054&h=25816

This widget exhibits features not c开发者_高级运维ommonly seen in other widgets: animated images and interactivity beyond a simple click. Does this widget take advantage of Samsung's custom launcher (TwLauncher), or is it a standard widget? If it is a standard widget, what API does it use for the animation and interactivity?

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It's using Samsung's custom launcher to provide those features.

To see what can/can't be done with app widgets currently look here: http://developer.android.com/guide/topics/appwidgets/index.html

Specifically this section:

A RemoteViews object (and, consequently, an App Widget) can support the following layout classes:

FrameLayout LinearLayout RelativeLayout

And the following widget classes:

AnalogClock Button Chronometer ImageButton ImageView ProgressBar TextView

So you don't have the UI components at your disposal when creating app widgets to design something with that level of interactivity. Not if you are targeting the stock launcher anyway.

However, from what I've seen of the Android 3.0 SDK, I think this level of interactivity will be possible on the stock Android 3.0 (Honeycomb) launcher.