In iOS 7 the UIStatusBar
has been designed in a way that it merges with the view like this:
The easiest way to do so is installing an older SDK to your newest Xcode.
How to install older SDK to the newest Xcode?
U can get the iOS 6.1 SDK from http://www.4shared.com/zip/NlPgsxz6/iPhoneOS61sdk.html or downloading an older Xcode and geting the SDK from its contents
Unzip and paste this folder to /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs
Restart the xcode.
Hope it helps you. It worked for me =)