dismiss current view controller AFTER presenting new view controller - swift

Question

I\'m trying to dismiss a VC and present a new VC. but I don\'t want old VC to exist anymore. I use the code below to dismiss current VC and present new one. but this way, there\

Answer 1

If you want to present VC B from VC A and want to dismiss VC A while Presenting, you can use this code:

You write this code in your VC A from which Button you want to present the VC B.

let parentVC = presentingViewController
dismiss(animated: true) {
    let vc = self.storyboard!.instantiateViewController(withIdentifier...)
    parentVC.present(vc, animated: true)`enter code here`
}