iOS-8 and later - UITableView inside an UIAlertController

Question

I know how to add any Custom UI inside UIAlertView by using accessoryView like UITableView but I am now curious that if w

Answer 1

Here is a Swift 5 Sample Code:

    //MARK: - Properties
    private var alertController = UIAlertController()
    private var tblView = UITableView()

    //MARK: - TableViewAlert
    private func setupTableViewAlert() {
    
    let alertVC = UIViewController.init()
    let rect = CGRect(x: 0.0, y: 0.0, width: 300.0, height: 300.0)
    alertVC.preferredContentSize = rect.size
    
    tblView = UITableView(frame: rect)
    tblView.delegate = self;
    tblView.dataSource = self;
    tblView.tableFooterView = UIView(frame: .zero)
    tblView.separatorStyle = .singleLine
    alertVC.view.addSubview(tblView)
    alertVC.view.bringSubviewToFront(tblView)
    alertVC.view.isUserInteractionEnabled = true
    tblView.isUserInteractionEnabled = true
    tblView.allowsSelection = true
    
    self.alertController = UIAlertController(title: "Select City", message: nil, preferredStyle: .alert)

    //this is the main part
    //add local alert content over global one
    alertController.setValue(alertVC, forKey: "contentViewController")
    
    let cancelAction = UIAlertAction(title: "Cancel", style: .default, handler: nil)
    
    alertController.addAction(cancelAction)
    self.present(alertController, animated: true, completion: nil)
}


extension SignupViewController: UITableViewDataSource {
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    return 10
}

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell: UITableViewCell = UITableViewCell.init(style: .value1, reuseIdentifier: "cell")
    cell.textLabel?.text = "Cell \(indexPath.row + 1)"
    cell.textLabel?.textAlignment = .center
    cell.detailTextLabel?.textColor = .black
    return cell
}}

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