[iOS] Adding NavigationController

ios adding NavigationController

Editor->Embed In -> Navigation Controller

 

아래의 화면과 같이 생성됨을 알 수 있음. 

 

 

@IBAction func nextButtonClicked(_ sender: Any) {
   guard let popupVc = 
   self.storyboard?
   .instantiateViewController(withIdentifier: "PopupViewController") 
   as? PopupViewController else { return }
   self.navigationController?.pushViewController(popupVc, animated: true)
}