Unwind segue from navigation back button in Swift

Question

I have a settings screen, in that I have a table cell. By clicking on that I take to another screen where user can choose an option and I want it back in the previous view c

Answer 1

Do the following in the view controller that has the back button

Swift 3

override func didMove(toParentViewController parent: UIViewController?) {
    if !(parent?.isEqual(self.parent) ?? false) {
        print("Parent view loaded")
    }
    super.didMove(toParentViewController: parent)
}