How to present a new screen without a UIViewController in Swift 4?

Question

I have not implemented UIViewController because I have already inherited from another class, and it gives the error that present is not a member of this class

func shareAppLink() {           
    let name = "http://aijaz.com"
    let items = [name] as [Any]

    let ac = UIActivityViewController(activityItems: items, applicationActivities: nil)
    present(ac, animated: true)     
}

Answer 1

You can also use Respoder Chain to get the parent view controller for a view

extension UIView {
    var parentViewController: UIViewController? {
        var parentResponder: UIResponder? = self
        while parentResponder != nil {
            parentResponder = parentResponder!.next
            if let viewController = parentResponder as? UIViewController {
                return viewController
            }
        }
        return nil
    }
}

And declare your shareAppLink function like

func shareAppLink(sender : UIView) {
    let name = "http://aijaz.com"
    let items = [name] as [Any]
    let ac = UIActivityViewController(activityItems: items, applicationActivities: nil)
    sender.parentViewController(ac, animated: true)
}

then in didSelectRowAt, you can call it as:

self.shareAppLink(sender : cell)