将UIImageView的动画与过渡相结合 [英] Combining an animation of an UIImageView with a transition

问题描述

我正在过渡UIImageView的图像，并且还希望同时移动图像视图。到目前为止，结果是图像过渡了，但移动时没有。

I am doing a transition of an UIImageView's image and would also like to move the image view at the same time. The results so far is that the image transitions, but not while moving.

class ViewController: UIViewController {

    @IBOutlet weak var imageView: UIImageView!
    @IBOutlet weak var imageViewTopConstraint: NSLayoutConstraint!

    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)

        UIView.transition(with: imageView, duration: 2.0, options: .transitionCrossDissolve, animations: {
            self.imageView.image = UIImage(named: "otherImage")
        }, completion: nil)

        imageViewTopConstraint.constant = 200

        UIView.animate(withDuration: 2.0) {
            self.view.layoutIfNeeded()
        }
    }

}

关于如何解决此问题的任何想法？

Any ideas on how to solve this?

推荐答案

您可以将imageView放在容器中，然后在对imageView进行过渡时动画化容器的约束。

You can put your imageView inside a container, then animate the constraints of the container while doing the transition on the imageView.

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