contextMenuConfigurationForRowAt.Swift

func tableView(_ tableView: UITableView, contextMenuConfigurationForRowAt indexPath: IndexPath, point: CGPoint) -> UIContextMenuConfiguration? {
        let config = UIContextMenuConfiguration(identifier: "\(indexPath.row)" as NSCopying, previewProvider: {
            
            return DetailViewController(selectedText: self.array[indexPath.row])
        }) { action in
            let viewMenu = UIAction(title: "Go Detail VC", image: UIImage(systemName: "eye.fill"), identifier: UIAction.Identifier(rawValue: "view")) {_ in
                self.present(DetailViewController(selectedText: "\(indexPath.row)"), animated: true)
            }
            
            let deleteMenu = UIAction(title: "Delete", image: UIImage(systemName: "trash.fill"), identifier: nil) { (action) in
                self.array.remove(at: indexPath.row)
                tableView.reloadData()
            }
            let addMenu = UIAction(title: "Add", image: UIImage(systemName: "plus.rectangle.fill"), identifier: nil) { (action) in
                self.array.append(self.array.randomElement() ?? "")
                tableView.reloadData()
            }
            let secondMenu = UIMenu(title: "Edit", children: [deleteMenu, addMenu])
            return UIMenu(title: "", image: nil, identifier: nil, children: [viewMenu, secondMenu])
        }
        return config
    }