環境 dismiss 横 画面遷移す swift 4 swift3 xcode xcode9 iOS 実装 let transition = CATransition() transition.duration = 0.5 transition.type = kCATransitionPush transition.subtype = kCATransitionFromLeft view.window!.layer.add(transition, forKey: kCATransition) dismiss(animated: false, completion: nil) 関連