What kind of animation do you want? Alpha animation? frame animation?
You would normally set this up around the addSubview call. For the alpha animation set the alpha to 0 before the animation block, you could do this in the nib. Then inside the animation block set the alpha to 1. For the frame animation set the frame to something outside the animation block, maybe an offscreen potion. Then change the frame to the final position of the view inside the animation block.