Where to add a loading view in an iphone/ipad app?

I have a view made in Interface Builder and I want to show it every time I need time to get some data from a server. I need to add it on top of everything, I mean, modals can be p开发者_运维技巧resenting when this view is visible, and this view has to be always on top.

Any help? Thanks in Advance

You need to instantiate your view from "nib" and then add it to your window/view as a subview like here: How to load an XIB? or here: How to load xib file with attached view controller?