UITextField keyboard not dismissing - ios

Question

I have a UIViewController with a UITextField in it and I'm trying to dismiss the keyboard when I click away or the view is dismissed. However, when I call resignFirstResponder(), the keyboard still doesn't dismiss and I'm not quite sure why. Here's my code:
class MessageViewController: UIViewController, UITextFieldDelegate {
var messageTextField : UITextField = UITextField()
override func viewDidLoad() {
...
messageTextField.frame = CGRectMake(10, UIScreen.mainScreen().bounds.size.height-50, UIScreen.mainScreen().bounds.size.width-80, 40)
messageTextField.delegate = self
messageTextField.borderStyle = UITextBorderStyle.Line
messageTextField.becomeFirstResponder()
self.view.addSubview(messageTextField)
NSNotificationCenter.defaultCenter().addObserver(self, selector: "keyboardWillShow:", name: UIKeyboardWillShowNotification, object: nil)
NSNotificationCenter.defaultCenter().addObserver(self, selector: "keyboardWillHide:", name: UIKeyboardWillHideNotification, object: nil)
...
}
func textFieldShouldReturn(textField: UITextField) -> Bool {
textField.resignFirstResponder()
return true
}
override func touchesBegan(touches: Set<NSObject>, withEvent event: UIEvent) {
self.view.endEditing(true)
println("Touched")
}
func keyboardWillShow(notification: NSNotification) {
var keyboardSize = (notification.userInfo?[UIKeyboardFrameBeginUserInfoKey]as? NSValue)?.CGRectValue()
let messageFrame = messageTextField.frame
let newY = messageFrame.origin.y - keyboardSize!.height
messageTextField.frame = CGRectMake(messageFrame.origin.x, newY, messageFrame.size.width, messageFrame.size.height)
}
func keyboardWillHide(notification: NSNotification) {
var keyboardSize = (notification.userInfo?[UIKeyboardFrameEndUserInfoKey]as? NSValue)?.CGRectValue()
let messageFrame = messageTextField.frame
let newY = messageFrame.origin.y - keyboardSize!.height
messageTextField.frame = CGRectMake(messageFrame.origin.x, newY, messageFrame.size.width, messageFrame.size.height)
}
}
Does anyone know why the keyboard isn't dismissing? I added the UITextField to the view programmatically as opposed to using storyboard. Does that make a difference?

Answer 1

class ViewController: UIViewController,UITextFieldDelegate {
confirm protocols
messageTextField.delegate=self
set delegate
func textFieldShouldReturn(textField: UITextField!) -> Bool
{
messageTextField.resignFirstResponder()
return true;
}
Use this code..

Answer 2

The following is how I did for that problem. I hope this method solve your problem.
textfield
#IBOutlet var userID : UITextField!
function.
func textFieldShouldReturn(textField: UITextField!)-> Bool
{ userID.resignFirstResponder( )
return true
}
In your desired function, you need to write this syntax.
#IBAction func login(sender: AnyObject)
{
userID.resignFirstResponder( )
}
This is in ViewDidLoad or ViewDidAppear
override func viewDidLoad( )
{
userID.delegate = self;
}
I cannot comment on the previous user. That's why I write this one.
I hope this gives you idea.

Answer 3

func textFieldShouldReturn(textField: UITextField) -> Bool {
self.view.endEditing(true)
//textField.resignFirstResponder()
return false
}
check delegate add into your viewDidLoad()
self.yourTextField.delegate = self;
how-to-dismiss-uitextfields-keyboard-in-your-swift-app
This might helps you :)

Answer 4

#vijeesh's answer will probably work, and the logic is almost correct, but it is technically wrong if you ever use more than one UITextField. textField is the UITextField parameter that is passed when textFieldShouldReturn is called. The problem is, you're just declaring:
textField.resignFirstResponder()
Your program doesn't know what UITextField you're referring to. Even though you may only have one textField in your program, and you know that it's your messageTextField, the program still doesn't know that. It just sees "textField". So you have have to tell it what to do for each UITextField in your program. Even if you have just one. This should work:
func textFieldShouldReturn(textField: UITextField) -> Bool {
if textField == messageTextField {
messageTextField.resignFirstResponder()
}
return true
}

Answer 5

very simple.
first you add Tap Gesture
var tap = UITapGestureRecognizer(target: self, action: "handle:")
view.addGestureRecognizer(tap)
in function handle
func handle(tap: UITapGestureRecognizer){
view.endEditing(true)
}
so you can dismiss keyboard when you click outside UITextField