how to animate some portion of images?

I am implementing fun application.In which i want 开发者_如何学JAVAto animate some area(portion) of images. I dont know how it possible.If u have any idea then please help me.

If you're looking to animate a portion of an image you could just create a smaller animation and put it at the right relative location inside a larger image.

If you want to know how to animate images in general, that's a different question entirely.