Swift3, I want to be able to open both pages when I swipe.

override func viewDidLoad(){
    super.viewDidLoad()

    // Swipe to the left
    let leftSwipe=UISwipeGestureRecognizer(target:self, action:#selector(swipeAction(swipe:)))
    leftSwipe.direction=UISwipeGestureRecognizerDirection.left
    self.view.addGestureRecognizer (leftSwipe)
    // Swipe to the right
    let rightSwipe=UISwipeGestureRecognizer (target:self, action:#selector(swipeAction(swipe:)))
    rightSwipe.direction=UISwipeGestureRecognizerDirection.right
    self.view.addGestureRecognizer (rightSwipe)
}


   func swipeAction (swipe:UISwipeGestureRecognizer) {
    switchswipe.direction{
    case UISwipeGestureRecognizerDirection.right:
        performSegue(withIdentifier: "backView", sender:self)
    case UISwipeGestureRecognizerDirection.left:
        performSegue(withIdentifier: "goView", sender:self)
    default:
        break
    }
}