If you ever want something like this: simply add this line to your viewController

  navigationController?.additionalSafeAreaInsets.top = 100 
  // where 100 is the extra space

  @IBAction func sliderSlided(_ sender: Any) {
        let top: CGFloat = (CGFloat(200 * ((sender as? UISlider)?.value ?? 1) - 0.5))
        navigationController?.additionalSafeAreaInsets.top = top
  }

    @IBAction func slider2Slided(_ sender: Any) {
        let top: CGFloat = (CGFloat(100 * ((sender as? UISlider)?.value ?? 1)))
        additionalSafeAreaInsets.top = top
    }