How to add a TextField to UIAlertView in Swift

Question

I have this code, but I dont know how to show a textfield inside the UIAlertView.

var altMessage = UIAlertController(title: \"Warning\", message: \"This is A         


        

Answer 1

Swift 5

public func alertWithTextField(title: String? = nil, message: String? = nil, placeholder: String? = nil, completion: @escaping ((String) -> Void) = { _ in }) {
    let alert = UIAlertController(title: title, message: message, preferredStyle: .alert)
    alert.addTextField() { newTextField in
        newTextField.placeholder = placeholder
    }
    alert.addAction(UIAlertAction(title: "Cancel", style: .cancel) { _ in completion("") })
    alert.addAction(UIAlertAction(title: "Ok", style: .default) { action in
        if
            let textFields = alert.textFields,
            let tf = textFields.first,
            let result = tf.text
        { completion(result) } 
        else
        { completion("") }
    })
    navigationController?.present(alert, animated: true)
}

Usage:

alertWithTextField(title: "bork", message: "borkborkbork", placeholder: "bork?") { result in
    print(result)
}

Answer 2

Swift 2.2

import UIKit

extension UIAlertController {
    // MARK: - UIAlertController+Present

    private struct ButtonsName {
        static let Ok = NSLocalizedString("uIAlertController.buttonName.ok", comment: "")
        static let Cancel = NSLocalizedString("uIAlertController.buttonName.cancel", comment: "")
    }


    class func suggestionAlertViewWithTitle(title:String?, placeholder:String, message:String, presenter:UIViewController, destructive:Bool = false,
                                            okButtonCompletion:((enteredSuggestion:String?)->Void)?, cancelButtonCompletion:(()->Void)?, presentCompletion:(()->Void)?) {
        var alertTitle = UIAlertController.appName()
        if let userTitle = title {
            alertTitle = userTitle
        }

        let controller = UIAlertController(title: alertTitle, message: message, preferredStyle: .Alert)
        let okAction = UIAlertAction(title: ButtonsName.Ok, style: destructive == true ? .Destructive : .Default) { (action) in
            if let okButtonCompletion = okButtonCompletion {
                let text = controller.textFields?.first?.text
                dispatch_async(dispatch_get_main_queue(), {
                    okButtonCompletion(enteredSuggestion: text)
                })
            }
        }
        let cancelAction = UIAlertAction(title: ButtonsName.Cancel, style: .Cancel) { (action) in
            if let cancelButtonCompletion = cancelButtonCompletion {
                dispatch_async(dispatch_get_main_queue(), {
                    cancelButtonCompletion()
                })
            }
        }

        controller.addAction(okAction)
        controller.addAction(cancelAction)
        controller.addTextFieldWithConfigurationHandler { (textField) in
            textField.placeholder = placeholder
        }

        dispatch_async(dispatch_get_main_queue(), {
            presenter.presentViewController(controller, animated: true, completion: presentCompletion)
        })
    }

    // MARK: - Private

    private static func appName () -> String {
        return NSBundle.mainBundle().infoDictionary!["CFBundleName"] as! String
    }
}

usage:

    UIAlertController.suggestionAlertViewWithTitle(nil, placeholder: placeholder, message: message,
                                                          presenter: self, destructive: false,
                                                          okButtonCompletion: { (enteredSuggestion) in
                self.logger.sendAllLogs(self.currentUser, suggestedTitle: enteredSuggestion)
        }, cancelButtonCompletion:nil, presentCompletion: nil)

a little bit overloaded, but u can always make some parameters optional or/and default

Answer 3

Updated for swift 3 :

used below simple code:

    func showAlertWithTwoTextFields() {

        let alertController = UIAlertController(title: "Add Event", message: "Enter event and it's description", preferredStyle: .alert)

        let saveAction = UIAlertAction(title: "Save", style: .default, handler: {
            alert -> Void in

            let eventNameTextField = alertController.textFields![0] as UITextField
            let descriptionTextField = alertController.textFields![1] as UITextField

            print("firstName \(String(describing: eventNameTextField.text)), secondName \(String(describing: descriptionTextField.text))")

            if eventNameTextField.text != "" || descriptionTextField.text != ""{

            }else{
               // self.showAlertMessageToUser(title: "Alert", messageToUser: "Fields should not be empty, Please enter given info...")
// Show Alert Message to User As per you want
            }

        })

        let cancelAction = UIAlertAction(title: "Cancel", style: .default, handler: {
            (action : UIAlertAction!) -> Void in

        })

        alertController.addTextField { (textField : UITextField!) -> Void in
            textField.placeholder = "Enter event Name"
        }
        alertController.addTextField { (textField : UITextField!) -> Void in
            textField.placeholder = "Enter event description in short"
        }

        alertController.addAction(saveAction)
        alertController.addAction(cancelAction)

        self.present(alertController, animated: true, completion: nil)
    }

// Enjoy Coding...!

Answer 4

In Swift 3

    let alert = UIAlertController(title: "Alert Ttitle", message: "Alert Message", preferredStyle:
        UIAlertControllerStyle.alert)

    alert.addTextField(configurationHandler: textFieldHandler)

    alert.addAction(UIAlertAction(title: "Ok", style: UIAlertActionStyle.default, handler:{ (UIAlertAction)in


    }))

    self.present(alert, animated: true, completion:nil)

---

func textFieldHandler(textField: UITextField!)
    {
        if (textField) != nil {
            textField.text = "Filename"
        }
    }

Answer 5

Try This Code (with swift):

func configurationTextField(textField: UITextField!)
    {
        println("configurat hire the TextField")

        if let tField = textField {

            self.textField = textField!        //Save reference to the UITextField
            self.textField.text = "Hello world"
        }
    }


 func handleCancel(alertView: UIAlertAction!)
        {
           println("User click Cancel button") 
           println(self.textField.text)
        }

 var alert = UIAlertController(title: "Alert Title", message: "Alert Message", preferredStyle: UIAlertControllerStyle.Alert)

    alert.addTextFieldWithConfigurationHandler(configurationTextField)

    alert.addAction(UIAlertAction(title: "Close", style: UIAlertActionStyle.Cancel, handler:handleCancel))
    alert.addAction(UIAlertAction(title: "Ok", style: UIAlertActionStyle.Default, handler:{ (UIAlertAction)in
            println("User click Ok button")
            println(self.textField.text)
        }))
    self.presentViewController(alert, animated: true, completion: {
            println("completion block")
        })

Can you see also my answer here

Answer 6

I see you're already using the new UIAlertController -- good idea, since there's little use in old API if you're usung Swift anyway. But alert.textFieldAtIndex: won't work for that; it's for UIAlertView only.

Luckily, UIAlertController has a method for adding text fields.