如何同时呈现UIMenuController和UIAlertController？

import UIKit

class ViewController: UIViewController {
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        let longPressGesture = UILongPressGestureRecognizer(target: self, action: #selector(handleLongPress(_:)))
        view.addGestureRecognizer(longPressGesture)
    }
    
    @objc func handleLongPress(_ gestureRecognizer: UILongPressGestureRecognizer) {
        if gestureRecognizer.state == .began {
            becomeFirstResponder()
            
            let menuController = UIMenuController.shared
            let menuItem = UIMenuItem(title: "Custom Action", action: #selector(customAction))
            menuController.menuItems = [menuItem]
            menuController.showMenu(from: view, rect: view.bounds)
            
            let alertController = UIAlertController(title: "Alert", message: "This is an alert.", preferredStyle: .alert)
            let okAction = UIAlertAction(title: "OK", style: .default, handler: nil)
            alertController.addAction(okAction)
            present(alertController, animated: true, completion: nil)
        }
    }
    
    override var canBecomeFirstResponder: Bool {
        return true
    }
    
    override func canPerformAction(_ action: Selector, withSender sender: Any?) -> Bool {
        if action == #selector(customAction) {
            return true
        }
        return false
    }
    
    @objc func customAction() {
        // Custom action implementation
    }
}