transitionFromViewController

ViewController.swift

print("Last Page Said Done")
if let appVC = storyboard?.instantiateViewControllerWithIdentifier("YourAppViewControler") {
    let currentVC = pageViewController
    
    appVC.view.frame = currentVC.view.frame
    appVC.willMoveToParentViewController(nil)
    addChildViewController(appVC)
    
    transitionFromViewController(currentVC, toViewController: appVC, duration: 1.0, options: .TransitionCrossDissolve, animations: { () -> Void in
        //
        }, completion: { (completed: Bool) -> Void in
            currentVC.removeFromParentViewController()
            appVC.didMoveToParentViewController(self)
    })
    
}