How to make actionsheet pop over a bar button on iPhone - swift

Question

I know how to make an action sheet pop over a button on iPad but not for iPhone. it seems that on iphone the action sheet doesn't have popoverPresentationController:
#IBAction func addChannel(_ sender: Any) {
let sender = sender as? UIBarButtonItem
let actionSheet = UIAlertController(title: nil, message: nil, preferredStyle: .actionSheet)
let addChanel = UIAlertAction(title: "Add a Channel", style: .default) { (_) in
self.addChannel()
}
let addContact = UIAlertAction(title: "Add a Contact", style: .default){ _ in
self.addContact()
}
actionSheet.addAction(addChanel)
actionSheet.addAction(addContact)
actionSheet.addAction(UIAlertAction(title: "Cancel", style: .cancel))
// actionSheet.popoverPresentationControlle
if let popover = actionSheet.popoverPresentationController{
actionSheet.popoverPresentationController?.barButtonItem = sender
actionSheet.popoverPresentationController?.permittedArrowDirections = UIPopoverArrowDirection.down
}
self.present(actionSheet, animated: true)
}
I want the action sheet pop over a button just like what WeChat + button does. Other stackoverflow answers are too old and not workable
Any idea is welcome!

Answer 1

Source.
You cannot use UIAlertController as a popover on iPhones. One of alternatives is using a UITableView or something inside new UIViewController, which you can create like described below (Swift 5.0).
import UIKit
class ViewController: UIViewController, UIPopoverPresentationControllerDelegate {
#IBOutlet private weak var button: UIButton!
#IBAction func buttonAction() {
let vc = UIViewController()
vc.view.backgroundColor = UIColor.blue
vc.preferredContentSize = CGSize(width: 200, height: 200)
vc.modalPresentationStyle = .popover
let ppc = vc.popoverPresentationController
ppc?.permittedArrowDirections = .any
ppc?.delegate = self
ppc?.sourceView = button
present(vc, animated: true, completion: nil)
}
func adaptivePresentationStyle(for controller: UIPresentationController) -> UIModalPresentationStyle {
return .none
}
}
Also, popoverPresentationController has property called barButtonItem which you can assign to your nav bar button.