呈现警报控制器后，TableView（didSelectRowAt IndexPath）中的快速继续流

Question

I'm wanting to present an UIAlertController when a user taps a row in a tableView when condition isn't equal to 1. Once the alert is dismissed, I'm wanting the remaining code in didSelectRowAt IndexPath to execute. However, the flow stops. I assume I'm needing something other than nil in completion: but I'm stumped.

I'm presenting the Alert Controller like so:

func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
    if condition != 1 {
        let alertController = UIAlertController(title: "Title", message: "message", preferredStyle: .alert)

        let defaultAction = UIAlertAction(title: "OK", style: .default, handler: nil)
        alertController.addAction(defaultAction)
        present(alertController, animated: true, completion: nil)
        condition = 1
    }

    \\remaining code to be executed
}

Answer 1

You can put the code to be executed in the action handler of the defaultAction. Thus the code will be executed after the ok button is pressed. If you put it in present() method completion, it will be executed exact after the alert is presented.

let alert = UIAlertController(title: "Hello", message: "Nai", preferredStyle: .alert)
    alert.addAction(UIAlertAction(title: "Ok", style: .default, handler: { (action) in
        print("Executed after ok tapped")
    }))
    present(alert, animated: true) {
        print("Executed when its presented")
    }