Wait for autolayout to perform UIView animation

Question

I have an UIView that is loaded from its .xib file and I'd like to perform the animation right when the view is shown.

I want to copy an ImageView and perform the animation using that copy, the problem is that since I'm calling the animation within willMove(toWindow:) method, the copied ImageView frame is created before the autolayout resulting in a weird behavior.

I've tried calling layoutIfNeeded() before the animation but with this, the animation isn't performed.

Thanks in advance!

Answer 1

right when the view is shown? try managing the UIView via a UIViewController and perform the animation in func viewDidAppear(_ animated: Bool) inside your viewController

an example here below how to insert the uiView managed in a new UIViewController in current viewController's view:

self.view.addSubview(myNewViewControler.view)

then in the NewViewController you can call back the current presented viewController in the viewDidAppear via delegate and finally perform animation