It is abstract to avoid making this element keep two pointers for the state images, saving 8 bytes per slot. The more derived class "BooleanImageElement" shows one way to implement this by keeping two pointers, a better implementation would return pointers to images that were preloaded and are static. A subclass only needs to implement the GetImage method.

Namespace: MonoTouch.Dialog
Assembly: MonoTouch.Dialog-1 (in MonoTouch.Dialog-1.dll)
Assembly Versions: 0.0.0.0