Is this animation possible on an iPhone/iPodTouch?

Is this sort of a开发者_运维知识库nimation possible on an iPhone/iPodTouch? If yes, would it cause the app to slow down to a crawl?: an animated character would "liquefy" (become like a liquid--liquid mercury, etc.) and flow about the screen, in between and around the various buttons and field areas. Thanks.

That sounds far outside the scope of Core Animation. You'd have to use OpenGL for something with that level of complexity--but yes, I do believe that's within the hardware's capabilities (depending on exactly what you mean.) Take a look at games like Infinity Blade or Rage to see what an iPhone's hardware is capable of.

Not with any standard protocols. You could probably work up some totally custom thing but it would not be a trivial task.