How do you dismiss the keyboard when editing a UITextField

Question

I set the delegate of the UITextField to my ViewController class.

In that class I implemented this method as following:

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

If you connect the DidEndOnExit event of the text field to an action (IBAction) in InterfaceBuilder, it will be messaged when the user dismisses the keyboard (with the return key) and the sender will be a reference to the UITextField that fired the event.

For example:

-(IBAction)userDoneEnteringText:(id)sender
{
    UITextField theField = (UITextField*)sender;
    // do whatever you want with this text field
}

Then, in InterfaceBuilder, link the DidEndOnExit event of the text field to this action on your controller (or whatever you're using to link events from the UI). Whenever the user enters text and dismisses the text field, the controller will be sent this message.

You can also create a method in your controller

 -(IBAction)editingEnded:(id)sender{
    [sender resignFirstResponder]; 
}

and then in Connection Inspector in IB connect Event "Did End On Exit" to it.

kubi, thanks. Your code worked. Just to be explicit (for newbies like) as you say you have to set the UITextField's delegate to be equal to the ViewController in which the text field resides. You can do this wherever you please. I chose the viewDidLoad method.

- (void)viewDidLoad 
{
    // sets the textField delegates to equal this viewController ... this allows for the keyboard to disappear after pressing done
    daTextField.delegate = self;
}

Here is a trick for getting automatic keyboard dismissal behavior with no code at all. In the nib, edit the First Responder proxy object in the Identity inspector, adding a new first responder action; let's call it dummy:. Now hook the Did End on Exit event of the text field to the dummy: action of the First Responder proxy object. That's it! Since the text field's Did End on Exit event now has an action–target pair, the text field automatically dismisses its keyboard when the user taps Return; and since there is no penalty for not finding a handler for a message sent up the responder chain, the app doesn't crash even though there is no implementation of dummy: anywhere.

Just add

[textField endEditing:YES];

where you want to disable keyboard and display the picker view.

In Swift you can write an IBAction in the Controller and set the Did End On Exit event of the text field to that action

@IBAction func returnPressed(sender: UITextField) {
    self.view.endEditing(true)
}