codes are not dismissing keyboard - ios

Question

I added resignFirstResponder and touchesBegan to my code but the keyboard is not dismissing. I already checked the delegate and assigned delegate to textfields but still no sign of dismissing.
Please help spot the error? (i'm guessing it might be about multiple textFields?)
import UIKit
import Parse
class SignUpViewController: UIViewController, UITextFieldDelegate {
#IBAction func BackToFirstPageButton(sender: AnyObject) {
performSegueWithIdentifier("BackToLogInPage", sender: self)
}
func SignOutForEmailVerification() {
PFUser.logOut()
performSegueWithIdentifier("BackToLogInPage", sender: self)
}
#IBOutlet var UsernameTextField: UITextField!
#IBOutlet var PasswordTextField: UITextField!
#IBOutlet var EmailTextField: UITextField!
var ActivityIndicator:UIActivityIndicatorView = UIActivityIndicatorView()
#IBAction func SignUpButton(sender: AnyObject) {
if UsernameTextField.text == "" || PasswordTextField.text == "" || EmailTextField.text == "" {
let SignUpAlert = UIAlertController (title: "Error in form", message: "Please fill in the blanks", preferredStyle: UIAlertControllerStyle.Alert)
SignUpAlert.addAction((UIAlertAction(title: "Dismiss", style: .Default, handler: { (action) -> Void in
})))
self.presentViewController(SignUpAlert, animated: true, completion: nil)
} else {
ActivityIndicator = UIActivityIndicatorView(frame: CGRectMake(0, 0, 50, 50))
ActivityIndicator.center = self.view.center
ActivityIndicator.hidesWhenStopped = true
ActivityIndicator.activityIndicatorViewStyle = UIActivityIndicatorViewStyle.Gray
view.addSubview(ActivityIndicator)
ActivityIndicator.startAnimating()
UIApplication.sharedApplication().beginIgnoringInteractionEvents()
var user = PFUser()
user.username = UsernameTextField.text
user.password = PasswordTextField.text
user.email = EmailTextField.text
user.signUpInBackgroundWithBlock({ (success, error) -> Void in
self.ActivityIndicator.stopAnimating()
UIApplication.sharedApplication().endIgnoringInteractionEvents()
if error == nil {
let EmailVerificationAlert = UIAlertController(title: "Email Verification", message: "Please click the link in an email we have just sent you", preferredStyle: UIAlertControllerStyle.Alert)
EmailVerificationAlert.addAction(UIAlertAction(title: "Okay", style: .Default, handler: { EmailVerificationAlert in self.SignOutForEmailVerification()})
)
self.presentViewController(EmailVerificationAlert, animated: true, completion: nil)
}
})
}
func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
self.UsernameTextField.delegate = self
self.PasswordTextField.delegate = self
self.EmailTextField.delegate = self
}
func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
self.view.endEditing(true)
}
func textFieldShouldReturn(textField: UITextField!) -> Bool {
textField.resignFirstResponder()
return true
}
}
}

Answer 1

When user taps "Return" key on the keyboard
As you already added the UITextFieldDelegate, try modifying this code :
func textFieldShouldReturn(textField: UITextField!) -> Bool {
self.UsernameTextField.resignFirstResponder();
self.EmailTextField.resignFirstResponder();
self.PasswordTextField.resignFirstResponder();
return true;
}
This will work when the user taps the button return on the keyboard.
Your mistake is as you said handling multiple text fields. Also you have to say which one you want to resignFirstResponder().
When user taps screen
User could also dismiss the keyboard by tapping anywhere on the screen.
Here we have a UITapGestureRecognizer that detects the tap to dismiss keyboard. It is an alternative solution.
override func viewDidLoad() {
super.viewDidLoad()
let tap: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: "dismissKeyboard")
view.addGestureRecognizer(tap)
}
func dismissKeyboard() {
view.endEditing(true)
}

Answer 2

import UIKit
import Parse
class SignUpViewController: UIViewController, UITextFieldDelegate {
#IBOutlet var UsernameTextField: UITextField!
#IBOutlet var PasswordTextField: UITextField!
#IBOutlet var EmailTextField: UITextField!
var ActivityIndicator:UIActivityIndicatorView = UIActivityIndicatorView()
var currentTextField : UITextField?
func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
self.UsernameTextField.delegate = self
self.PasswordTextField.delegate = self
self.EmailTextField.delegate = self
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
#IBAction func BackToFirstPageButton(sender: AnyObject) {
performSegueWithIdentifier("BackToLogInPage", sender: self)
}
func SignOutForEmailVerification() {
PFUser.logOut()
performSegueWithIdentifier("BackToLogInPage", sender: self)
}
#IBAction func SignUpButton(sender: AnyObject) {
if UsernameTextField.text == "" || PasswordTextField.text == "" || EmailTextField.text == "" {
let SignUpAlert = UIAlertController (title: "Error in form", message: "Please fill in the blanks", preferredStyle: UIAlertControllerStyle.Alert)
SignUpAlert.addAction((UIAlertAction(title: "Dismiss", style: .Default, handler: { (action) -> Void in
})))
self.presentViewController(SignUpAlert, animated: true, completion: nil)
} else {
currentTextField?.resignFirstResponder();
ActivityIndicator = UIActivityIndicatorView(frame: CGRectMake(0, 0, 50, 50))
ActivityIndicator.center = self.view.center
ActivityIndicator.hidesWhenStopped = true
ActivityIndicator.activityIndicatorViewStyle = UIActivityIndicatorViewStyle.Gray
view.addSubview(ActivityIndicator)
ActivityIndicator.startAnimating()
UIApplication.sharedApplication().beginIgnoringInteractionEvents()
var user = PFUser()
user.username = UsernameTextField.text
user.password = PasswordTextField.text
user.email = EmailTextField.text
user.signUpInBackgroundWithBlock({ (success, error) -> Void in
self.ActivityIndicator.stopAnimating()
UIApplication.sharedApplication().endIgnoringInteractionEvents()
if error == nil {
let EmailVerificationAlert = UIAlertController(title: "Email Verification", message: "Please click the link in an email we have just sent you", preferredStyle: UIAlertControllerStyle.Alert)
EmailVerificationAlert.addAction(UIAlertAction(title: "Okay", style: .Default, handler: { EmailVerificationAlert in self.SignOutForEmailVerification()})
)
self.presentViewController(EmailVerificationAlert, animated: true, completion: nil)
}
})
}
func textFieldDidBeginEditing(textField: UITextField!){
currentTextField = textField;
}
func textFieldShouldReturn(textField: UITextField!) -> Bool {
currentTextField.resignFirstResponder()
return true
}
}
}