Disabling segue animation
You can disable animations before performing the segue and after enable it again.
UIView.setAnimationsEnabled(false)self.performSegueWithIdentifier("next", sender: nil)UIView.setAnimationsEnabled(true)This will perform the segue without the animation.
Click on segue arrow in Main.Storyboard and then:
Check out Animates
If you want to switch animate state in the code, You can duplicate your segue in the storyboard, with different identifiers, and the same origin and destination. Then make one of theme animates and the other not. Then, do performSegue with the desired identifier.
class MyNavigationController : UINavigationController { var firstTransitionAnimated : Bool = true // or false, based on initialization override func viewDidLoad() { super.viewDidLoad() var properSegue = firstTransitionAnimated ? "animated_segue" : "not_animated_segue" self.performSegue(withIdentifier: properSegue, sender: self) }}