NavigationController.PushViewController也会移动导航栏

Question

See the attached GIF image to see the problem. Notice that upon tapping the Next button, new controller is pushed and it seems like it pushes new navigation bar on top of the existing one. Normally we know only everything under navigation bar moves and navigation bar doesn't. I am using NavigationController.PushViewController(controller, true) to push controller.

Answer 1

Is your next view controller is embedded in its own Navigation Controller, if so you should try having one Navigation controller and push the View controller in that.

UPDATE

 let transition:CATransition = CATransition()
    transition.duration = 0.7
    transition.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseInEaseOut)
    transition.type = kCATransitionPush
    transition.subtype = kCATransitionFromRight
    self.navigationController!.view.layer.addAnimation(transition, forKey: kCATransition)
    self.navigationController?.pushViewController(controller, animated: false)

Transition types:

 kCATransitionFromLeft
 kCATransitionFromBottom
 kCATransitionFromRight
 kCATransitionFromTop