Different view appearances in iOS7/iOS8

Question

In my app I need to support iOS 7 and iOS 8. I use Xcode 6. When I build app for iPhone 5s (iOS 8.0) it looks like this:

and it's right. But when I build app for iPhone 5s (iOS 7.1) it looks like this:

so button Done is missed and some black lines appeared. It looks like Xcode built app for iPhone 4. Maybe I forgot to set some properties and I can't understand what exactly properties I forgot. Any ideas?

Answer 1

You are missing the appropriate Launch images.

Edit: Just tested a new project and black bars disappeared just by clicking "Use Asset catalog" even if you don't actually set images.