When a phone call occurs, my app moves down, and the bottom of the app is cut off slightly. Is there anyway to shrink or resize that whole view when a call occurs.
Preferably through interface builder.
Indeed, your application window does shrink its subview. For example, if you have a status bar so the frame of your root view is (0,20,320,460), then if the in-call status bar is on, then the frame becomes (0,40,320,440).
Then why does the bottom of your app seem to be cut off? It's simply because the root view autoresizes its content in that way. For example, its