how to create alert buttons in swift code example

Example 1: create alert in swift

class ViewController: UIViewController {

    @IBAction func showAlertButtonTapped(_ sender: UIButton) {

        // create the alert
        let alert = UIAlertController(title: "My Title", message: "This is my message.", preferredStyle: .alert)

        // add an action (button)
        alert.addAction(UIAlertAction(title: "OK", style: UIAlertAction.Style.default, handler: nil))

        // show the alert
        self.present(alert, animated: true, completion: nil)
    }
}

Example 2: how to add button to alert swiftui

@State var showAlert = false

var body: some View {
  Button(action: {
    self.showAlert = true
  }) {
    Text("Show Alert")
  }
  .presentation($showAlert) {
      Alert(title: Text("Title"), message: Text("Message..."),
          primaryButton: .default (Text("OK")) {
            print("OK button tapped")
          },
          secondaryButton: .cancel()
      )
  }
}