Next/Done button using Swift with textFieldShouldReturn
You need to implement UITextFieldDelegate
in your class and set that object as the delegate for the UITextField
. Then implement the method textFieldShouldReturn:
like this:
func textFieldShouldReturn(textField: UITextField) -> Bool { textField.resignFirstResponder() if textField == someTextField { // Switch focus to other text field otherTextField.becomeFirstResponder() } return true}
In your example you are missing this line:
confirmPasswordTextField.delegate = self
If you have implemented the delegate of course.
I was attempting to test my textfields in the SignUpWindowView.swift, which is where all of the textFields are created. But, since I place SignUpWindowView into my MainViewController as a subview, all of my UITextField "handling" needed to be done in the MainView and NOT its subview.
So here is my entire code (at the moment) for my MainViewController, which handles moving my SignUpWindowView up/down when the keyboard is shown/hidden and then moves from one field to the next. When the user is in the last text field (whose keyboard Next button is now set to Done in the subview) the keyboard tucks away and the user can then submit the form with a signup button.
MainViewController:
import UIKit@objc protocol ViewControllerDelegate{ func keyboardWillShowWithSize(size:CGSize, andDuration duration:NSTimeInterval) func keyboardWillHideWithSize(size:CGSize,andDuration duration:NSTimeInterval)}class ViewController: UIViewController,UITextFieldDelegate{ var keyboardDelegate:ViewControllerDelegate? let signUpWindow=SignUpWindowView() let signUpWindowPosition:CGPoint=CGPointMake(505, 285) override func viewDidLoad() { super.viewDidLoad() // Keyboard Notifications NSNotificationCenter.defaultCenter().addObserver(self, selector: "keyboardWillShow:", name: UIKeyboardWillShowNotification, object: nil) NSNotificationCenter.defaultCenter().addObserver(self, selector: "keyboardWillHide:", name: UIKeyboardWillHideNotification, object: nil) // set the textFieldDelegates signUpWindow.firstNameTextField.delegate=self signUpWindow.lastNameTextField.delegate=self signUpWindow.userNameTextField.delegate=self signUpWindow.passwordTextField.delegate=self signUpWindow.confirmPasswordTextField.delegate=self signUpWindow.emailTextField.delegate=self } func keyboardWillShow(notification: NSNotification) { var info:NSDictionary = notification.userInfo! let keyboardFrame = info[UIKeyboardFrameEndUserInfoKey] as! NSValue let keyboardSize = keyboardFrame.CGRectValue().size var keyboardHeight:CGFloat = keyboardSize.height let animationDurationValue = info[UIKeyboardAnimationDurationUserInfoKey] as! NSNumber var animationDuration : NSTimeInterval = animationDurationValue.doubleValue self.keyboardDelegate?.keyboardWillShowWithSize(keyboardSize, andDuration: animationDuration) // push up the signUpWindow UIView.animateWithDuration(animationDuration, delay: 0.25, options: UIViewAnimationOptions.CurveEaseInOut, animations: { self.signUpWindow.frame = CGRectMake(self.signUpWindowPosition.x, (self.signUpWindowPosition.y - keyboardHeight+140), self.signUpWindow.bounds.width, self.signUpWindow.bounds.height) }, completion: nil) } func keyboardWillHide(notification: NSNotification) { var info:NSDictionary = notification.userInfo! let keyboardFrame = info[UIKeyboardFrameEndUserInfoKey] as! NSValue let keyboardSize = keyboardFrame.CGRectValue().size var keyboardHeight:CGFloat = keyboardSize.height let animationDurationValue = info[UIKeyboardAnimationDurationUserInfoKey] as! NSNumber var animationDuration : NSTimeInterval = animationDurationValue.doubleValue self.keyboardDelegate?.keyboardWillHideWithSize(keyboardSize, andDuration: animationDuration) // pull signUpWindow back to its original position UIView.animateWithDuration(animationDuration, delay: 0.25, options: UIViewAnimationOptions.CurveEaseInOut, animations: { self.signUpWindow.frame = CGRectMake(self.signUpWindowPosition.x, self.signUpWindowPosition.y, self.signUpWindow.bounds.width, self.signUpWindow.bounds.height) }, completion: nil) } func textFieldShouldReturn(textField: UITextField) -> Bool { switch textField { case signUpWindow.firstNameTextField: signUpWindow.lastNameTextField.becomeFirstResponder() break case signUpWindow.lastNameTextField: signUpWindow.userNameTextField.becomeFirstResponder() break case signUpWindow.userNameTextField: signUpWindow.passwordTextField.becomeFirstResponder() break case signUpWindow.passwordTextField: signUpWindow.confirmPasswordTextField.becomeFirstResponder() break case signUpWindow.confirmPasswordTextField: signUpWindow.emailTextField.becomeFirstResponder() break default: textField.resignFirstResponder() } return true } override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() // Dispose of any resources that can be recreated. } override func viewWillDisappear(animated: Bool) { NSNotificationCenter.defaultCenter().removeObserver(self, name: UIKeyboardWillShowNotification, object: nil) NSNotificationCenter.defaultCenter().removeObserver(self, name: UIKeyboardWillHideNotification, object: nil) } @IBAction func signup() { signUpWindow.frame=CGRectMake(signUpWindowPosition.x, signUpWindowPosition.y, 485,450) signUpWindow.backgroundColor=UIColor.clearColor() self.view.addSubview(signUpWindow) }}
Using tags makes it easier. Assign tags in ascending order to all the text fields you are using on your screen.
func textFieldShouldReturn(_ textField: UITextField) -> Bool { let textTag = textField.tag+1 if let nextResponder = textField.superview?.viewWithTag(textTag) as UIResponder { //textField.resignFirstResponder() nextResponder.becomeFirstResponder() } else { // stop editing on pressing the done button on the last text field. self.view.endEditing(true) } return true}