UISearchBar Cancel Button

Question

Using a UISearchBar with showCancelButton=YES on iOS 5. Would like the cancel button to stay enabled when the keyboard drops down. Using the following code seems not to work:<

Answer 1

I know this one is old, but I was able to solve it and I couldn't find anything else on SO that solved it for me, so here's what worked (in Swift 3):

Enable the cancel button when the keyboard hides. Add this to viewDidLoad():

NotificationCenter.default.addObserver(self, selector: #selector(self.keyboardNotification(notification:)), name: NSNotification.Name.UIKeyboardDidHide, object: nil)

in the keyboardNotification(notification:) method, react to the keyboardDidHide notification:

func keyboardNotification(notification: NSNotification) {
    if notification.name == Notification.Name.UIKeyboardDidHide {
        self.enableSearchCancelButton()
    }
}

The enableSearchCancelButton is taken from what others have answered here.

func enableSearchCancelButton() {
    //enable the cancel button
    for view1 in searchBar.subviews {
        for view2 in view1.subviews {
            if let button = view2 as? UIButton {
                button.isEnabled = true
                button.isUserInteractionEnabled = true
            }
        }
    }
}

Finally, don't forget to remove the view controller as an observer:

deinit {
    NotificationCenter.default.removeObserver(self)
}