Objective c checking whether text field is empty

Question

Here\'s the code:

- (IBAction) charlieInputText:(id)sender {
    //getting value from text field when entered
    charlieInputSelf = [sender stringValue];

           


        

Answer 1

Check whether text field is empty in Swift

  @IBOutlet weak var textField: NSTextField!
  @IBOutlet weak var multiLineTextField: NSTextField!

  @IBAction func textChanged(sender: AnyObject) {
    //println("text changed! \(textField.stringValue)")

    if textField.stringValue.isEmpty == false {
      multiLineTextField.becomeFirstResponder()
      multiLineTextField.editable = true
    } else {
      multiLineTextField.editable = false
    }
  }