I have upgraded my project from iOS 6 to iOS 7 but there seems a little problem. The status bar and a tool bar is overriding and very close to each other. The tool bar was e
Your view's top constraint should no longer be top space to superview, but rather top space top top layout guide.
You can do this by moving the top space down beneath the status bar and then using the constraint menu to add the constraint to the nearest neighbor, which should now be the top layout guide, or you can do it as describe in this link on apple's developer library.