How do I show/hide a UIBarButtonItem?

Question

I created a toolbar in IB with several buttons. I would like to be able to hide/show one of the buttons depending on the state of the data in the main window.

Answer 1

Try in Swift, don't update the tintColor if you have some design for your UIBarButtonItem like font size in AppDelegate, it will totally change the appearance of your button when showing up.

In case of a text button, changing title can let your button 'disappear'.

if WANT_TO_SHOW {
    myBarButtonItem.enabled = true
    myBarButtonItem.title = "BUTTON_NAME"
}else{
    myBarButtonItem.enabled = false
    myBarButtonItem.title = ""
}