How to implement a wheel widget like on an iPhone?

Question

I would like to implement a widget with time settings similar to one iPhone ( http://developer.apple.com/library/ios/#documentation/userexperience/conceptual/mobilehig/art/ui_datetimepicker.jpg ).

• Should I use GlSurfaceView or just extend the View?
• Should I do this as a composite view (it will consist of several views) or draw everything on canvas in onDraw?
• If I do not extend GlSurfaceView, how to do (smooth) animations? Run Thread and call postInvalidate ()?

Answer 1

http://code.google.com/p/android-wheel/

Answer 2

I posted my code for the animated wheels widget here:

http://code.google.com/p/smooth-wheel/

Answer 3

@mbaird's answer seemed to support afaik animation in 2.0 through their demo slot machine. Are these the types of animation you are looking for?