I have an app that uses custom segue animations (based on https://www.appcoda.com/custom-segue-animations/). It has worked for years, but since iOS 13, the unwind segues aren't animating (black screen then just appears, instead of sliding in).
When I set the view controllers to have the new modalPresentationStyle to .fullScreen. The animation doesn't work, but it does with the default one.
Here's my code:
class TransitionManagerHorizonal: UIStoryboardSegue {
override func perform() {
// Assign the source and destination views to local variables.
var unwind = false
let firstVCView = source.view as UIView?
let secondVCView = destination.view as UIView?
let id = horizontalUnwindSegues.filter {$0 == identifier}
if id.count > 0 {
unwind = true
}
// Get the screen width and height.
let screenWidth = UIScreen.main.bounds.size.width
let offScreenRight = CGAffineTransform(translationX: screenWidth, y: 0)
let offScreenLeft = CGAffineTransform(translationX: -screenWidth, y: 0)
// Specify the initial position of the destination view.
secondVCView?.transform = offScreenLeft
// Access the app's key window and insert the destination view above the current (source) one.
let window = UIApplication.shared.keyWindow
window?.insertSubview(secondVCView!, aboveSubview: firstVCView!)
// Animate the transition.
UIView.animate(withDuration: 0.4, animations: { () -> Void in
firstVCView?.transform = offScreenRight
secondVCView?.transform = CGAffineTransform.identity
}, completion: { (Finished) -> Void in
if unwind {
self.destination.dismiss(animated: false, completion: nil)
} else {
self.source.present(self.destination ,
animated: false,
completion: nil)
}
})
}
}
Curiously, I have another transition manager that just uses alpha for the animation, and that one works well. Moving the view when it's full screen seems to be the issue.
