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为了在全视图中提供交互弹出手势，我在我的控制器中有一个 UIPanGestureRecognizer，我们可以使用它从左向右滑动视图控制器中的任何位置来弹出控制器，而不是使用默认的 NavigationController 弹出手势。

当我在视图中使用键盘打开的手势时，键盘也会通过交互解除（默认 NavigationController 弹出手势不会发生），这看起来很奇怪。

   func navigationController(_ navigationController: UINavigationController, animationControllerFor operation: UINavigationControllerOperation, from fromVC: UIViewController, to toVC: UIViewController) -> UIViewControllerAnimatedTransitioning? {
     if operation == .pop {
        return PopControllerTransition()//My transition
    }
    return nil
}

如何在我的自定义弹出转换弹出 viewController 时防止键盘关闭。

  //transition code
  func animateTransition(using transitionContext: UIViewControllerContextTransitioning) {
    let containerView = transitionContext.containerView
    let fromController = transitionContext.viewController(forKey: UITransitionContextViewControllerKey.from)!
    let toController = transitionContext.viewController(forKey: UITransitionContextViewControllerKey.to)!

    toController.view.transform = CGAffineTransform(translationX: -(toController.view.bounds.width/3), y: 0)
    containerView.insertSubview(toController.view, belowSubview: fromController.view)

    let view = GradientView(frame: containerView.frame)
    view.horizontal = true
    view.backgroundColor = UIColor.clear
    view.transform = CGAffineTransform(translationX: -toController.view.bounds.width, y: 0)
    view.gradientLayer.colors = [UIColor(white: 0.0, alpha: 0.2).cgColor, UIColor(white: 0.0, alpha: 0.5).cgColor]
    containerView.insertSubview(view, belowSubview: fromController.view)

    let duration = transitionDuration(using: transitionContext)

    UIView.animate(withDuration: duration, animations: {
        toController.view.transform = .identity
        fromController.view.transform = CGAffineTransform(translationX: fromController.view.bounds.width, y: 0)
        view.transform = .identity
        view.alpha = 0.0
    }) { (finish) in
        if !transitionContext.transitionWasCancelled {
            fromController.view.removeFromSuperview()
        }
        view.removeFromSuperview()
        transitionContext.completeTransition(!transitionContext.transitionWasCancelled)
    }
}
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1 回答 1

0

所以我注意到与 iOS 12 相比，iOS 13 上的键盘转换是不同的，所以我必须像这样手动进行：

    let animations: () -> Void = {
        fromView.frame.origin.x += fromView.bounds.width
        toView.frame.origin.x += fromView.bounds.width

        // Keyboard behavior changed on iOS 13. It dismisses ignoring transition
        // so need to fix that manually.
        if #available(iOS 13.0, *) {
            let keyboardWindow = UIApplication.shared.windows
                .first { String(describing: type(of: $0)) == "UIRemoteKeyboardWindow" }

            if let keyboardWindow = keyboardWindow, let keyboardImage = keyboardWindow.getImage() {
                let imageView = UIImageView(image: keyboardImage)
                keyboardWindow.addSubview(imageView)
                keyboardWindow.frame.origin.x += keyboardWindow.frame.width
            }
        }
    }

您可以检查我所做的实现 - https://github.com/APUtils/Animators/blob/master/Animators/Classes/Right%20Slide%20Animation/RightSlideOutAnimator.swift

于 2020-01-19T13:37:15.677 回答