Android: is this image/page indicator a standard widget?
<p>I would like to make use of something like the 3 circles at the bottom of the apps grid, to switch between images and indicate which image is being viewed.  I can't find any widget like this in the sdk, does it exist or do I have to make a custom component? </p>

<p><img src="http://i.stack.imgur.com/eWsJM.png" alt="enter image description here"></p>
