How to hide status bar of a single view controller in iOS 9?

Question

In a ViewController, which I presented modally, I did this:

override func prefersStatusBarHidden() -> Bool {
    return true
}

This used

Answer 1

In iOS 9, Xcode 7, Swift 2.0, it's back to how it was previously.

override func prefersStatusBarHidden() -> Bool {
        return true
}

In fact Xcode will tell you that

UIApplication.sharedApplication().setStatusBarHidden(true, withAnimation: .None) 

has been deprecated and that you should use the prefersStatusBarHidden method.