Промучился вечер с настраиваемыми Segue. На новое окно переходило, а обратно — никак. Возвращаешь стандартный Segue — все работает. Фишка оказалась в порядке вызова функции present.
Изначальный вариант выглядел так:
class FlipSegue: UIStoryboardSegue {
override func perform() {
let fromViewController = self.source
let toViewController = self.destination
UIView.transition(from: fromViewController.view, to: toViewController.view, duration: 0.5, options: .transitionFlipFromLeft ) {
fromViewController.present(toViewController, animated: false, completion: nil)
}
}
} |
а правильный так:
class FlipSegue: UIStoryboardSegue {
override func perform() {
let fromViewController = self.source
let toViewController = self.destination
fromViewController.present(toViewController, animated: false, completion: nil)
UIView.transition(from: fromViewController.view, to: toViewController.view, duration: 0.5, options: .transitionFlipFromLeft )
}
} |
притом unwind segue должно быть таким:
class UnFlipSegue: UIStoryboardSegue {
override func perform() {
let fromViewController = self.source
let toViewController = self.destination
UIView.transition(from: fromViewController.view, to: toViewController.view, duration: 0.5, options: .transitionFlipFromRight) { _ in
fromViewController.dismiss(animated: false, completion: nil )
}
}
} |