How to have a numberpad in a textfield of an alert controller [swift]

ios, swift, uialertcontroller, uitextfield

Solution

Found it on my own! It might be useful for someone else.

alert.addTextField(configurationHandler: { textField in
    textField.keyboardType = .numberPad
})

Problem

I'm trying to call an alert controller which has a textfield. But I'd like to show immediately the numberpad since the user should input numbers only. I tried with the following but it does not work. ``` let alert = UIAlertController(title: "New Rating", message: "Rate this!", preferredStyle: UIAlertControllerStyle.Alert) let cancelAction = UIAlertAction(title: "Cancel", style: .Default, handler: { (action: UIAlertAction!) in }) let saveAction = UIAlertAction(title: "Save", style: .Default, handler: { (action: UIAlertAction!) in let textField = alert.textFields![0] as UITextField textField.keyboardType = UIKeyboardType.NumberPad self.updateRating(textField.text) }) alert.addTextFieldWithConfigurationHandler { (textField: UITextField!) in } alert.addAction(cancelAction) alert.addAction(saveAction) self.presentViewController(alert, animated: true, completion: nil) ```

Original source