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

You can access the textfield with:

let textField = alert.textFieldAtIndex(0)

Then to change the placeholder text:

textField.placeholder = "Foo!"

And the keyboard type:

textField.keyboardType = ...

Answer 2

            var inputTextField: UITextField?

            //Create the AlertController
            let actionSheetController: UIAlertController = UIAlertController(title: "Rename", message: "", preferredStyle: .Alert)

            //Create and add the Cancel action
            let cancelAction: UIAlertAction = UIAlertAction(title: "Cancel", style: .Cancel) { action -> Void in
        //Do some stuff
            }
            actionSheetController.addAction(cancelAction)
            //Create and an option action
            let nextAction: UIAlertAction = UIAlertAction(title: "OK", style: .Default) { action -> Void in
        //Do some other stuff
            }
            actionSheetController.addAction(nextAction)
            //Add a text field
            actionSheetController.addTextFieldWithConfigurationHandler { textField -> Void in
        // you can use this text field
        inputTextField = textField
            }

            //Present the AlertController
            self.presentViewController(actionSheetController, animated: true, completion: nil)

Answer 3

Swift 4:

var textField: UITextField?

func configurationTextField(textField: UITextField!) {
    if (textField) != nil {
        self.textField = textField!        //Save reference to the UITextField
        self.textField?.placeholder = "Some text";
    }
}

func openAlertView() {
    let alert = UIAlertController(title: "Alert Title", message: "Alert Message", preferredStyle: UIAlertControllerStyle.alert)
    alert.addTextField(configurationHandler: configurationTextField)
    alert.addAction(UIAlertAction(title: "Cancel", style: .cancel, handler:nil))
    alert.addAction(UIAlertAction(title: "Ok", style: .default, handler:{ (UIAlertAction) in
        print("User click Ok button")
    }))
    self.present(alert, animated: true, completion: nil)
}

Answer 4

In Objective C

 UIAlertView *alertView =  [[UIAlertView alloc]initWithTitle:@"Duplicate file" message:@"A file with the same name already exists." delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil, nil];
 alertView.alertViewStyle = UIAlertViewStylePlainTextInput;

 [[alertView textFieldAtIndex:0] setText:@"Filename"];
 [[alertView textFieldAtIndex:0] setPlaceholder:@"Enter Filename"];
 [alertView show];

In Swift 2.3

func doSomething(){
    var alert = UIAlertController(title: "Duplicate file", message: "A file with the same name already exists.", preferredStyle: UIAlertControllerStyle.Alert)

    alert.addTextFieldWithConfigurationHandler(configurationTextField)

    alert.addAction(UIAlertAction(title: "Ok", style: UIAlertActionStyle.Default, handler:{ (UIAlertAction)in
         print("User click Ok button")
         print(self.textField.text)
    }))

 self.presentViewController(alert, animated: true, completion: {
     print("completion block")
 })
}

 func configurationTextField(textField: UITextField!){
     textField.text = "Filename"
 }

In Swift 3

func doSomething(){
    var alert = UIAlertController(title: "Duplicate file", message: "A file with the same name already exists.", preferredStyle: UIAlertControllerStyle.alert)

    alert.addTextField(configurationHandler: configurationTextField)

    alert.addAction(UIAlertAction(title: "Ok", style: UIAlertActionStyle.default, handler:{ (UIAlertAction)in
        print("User click Ok button")
        print(self.textField.text)
    }))

    self.present(alert, animated: true, completion: {
        print("completion block")
    })
}

func configurationTextField(textField: UITextField!){
    textField.text = "Filename"
}