UITextField - capture return button event

Solution 1:

- (BOOL)textFieldShouldReturn:(UITextField *)textField {
    [textField resignFirstResponder];
    return NO;
}

Don't forget to set the delegate in storyboard...

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Solution 2:

Delegation is not required, here's a one-liner:

- (void)viewDidLoad {
    [textField addTarget:textField
                  action:@selector(resignFirstResponder)
        forControlEvents:UIControlEventEditingDidEndOnExit];
}

Sadly you can't directly do this in your Storyboard (you can't connect actions to the control that emits them in Storyboard), but you could do it via an intermediary action.

Solution 3:

SWIFT 3.0

override open func viewDidLoad() {
    super.viewDidLoad()    
    textField.addTarget(self, action: #selector(enterPressed), for: .editingDidEndOnExit)
}

in enterPressed() function put all behaviours you're after

func enterPressed(){
    //do something with typed text if needed
    textField.resignFirstResponder()
}

Solution 4:

You can now do this is storyboard using the sent event 'Did End On Exit'.

In your view controller subclass:

 @IBAction func textFieldDidEndOnExit(textField: UITextField) {
    textField.resignFirstResponder()
}

In your storyboard for the desired textfield: