How to determine which textfield is active swift

Question

I cant figure out which UITextField is currently active so i can clear its text if they hit cancel on a UIBarButtonItem. Here is my code. There is a view with a UIPickerView,UIToolBar and two bar button items. The cancel item has an action that will clear its text only i cant figure out how to get the correct UITextField.

I've tried these both:

@IBAction func cancelText(sender: AnyObject) {       if self.truckYear.editing == true{          println("truckYear")          clearText(self.truckYear)     } else if self.truckMake.editing == true{          clearText(self.truckMake)     } } @IBAction func doneText(sender: AnyObject) {      pickerView.hidden = true }   func clearText(textField:UITextField){      println("in clear text")      textField.text = nil } 

And:

@IBAction func cancelText(sender: AnyObject) {       if self.truckYear.isFirstResponder(){          println("truckYear")          clearText(self.truckYear)     } else if self.truckMake.isFirstResponder(){          clearText(self.truckMake)     } } @IBAction func doneText(sender: AnyObject) {      pickerView.hidden = true }   func clearText(textField:UITextField){      println("in clear text")      textField.text = nil } 

Answer 1

You can declare a UITextField property in your class, and assign the current text field to it in textFieldDidBeginEditing. Then you can just call this text field whenever you need to.

class ViewController : UIViewController, UITextFieldDelegate {     var activeTextField = UITextField()     // Assign the newly active text field to your activeTextField variable    func textFieldDidBeginEditing(textField: UITextField) {          self.activeTextField = textField    }     // Call activeTextField whenever you need to    func anotherMethod() {         // self.activeTextField.text is an optional, we safely unwrap it here        if let activeTextFieldText = self.activeTextField.text {              print("Active text field's text: \(activeTextFieldText)")              return;        }         print("Active text field is empty")    } } 

Answer 2

In swift 4:

you can get the active UITextField like that

extension UIView { func getSelectedTextField() -> UITextField? {      let totalTextFields = getTextFieldsInView(view: self)      for textField in totalTextFields{         if textField.isFirstResponder{             return textField         }     }      return nil  }  func getTextFieldsInView(view: UIView) -> [UITextField] {      var totalTextFields = [UITextField]()      for subview in view.subviews as [UIView] {         if let textField = subview as? UITextField {             totalTextFields += [textField]         } else {             totalTextFields += getTextFieldsInView(view: subview)         }     }      return totalTextFields }} 

and then you call it like that

let current = view.getSelectedTextField()