Disable TableView Interaction when Keyboard Present - objective-c

Question

I have searchBar that presents the keyboard when a user taps the searchBar and disables the keyboard when the user taps outside.
However, the tap gesture interacts with the tableView content. How can I disable interaction with the tableView while the keyboard is present?
override func viewDidLoad() {
super.viewDidLoad()
// dismiss keyboard if tapped outside of search
let tapGesture = UITapGestureRecognizer(target: self, action: Selector("hideKeyboard"))
tapGesture.cancelsTouchesInView = true //false doesn't work
tableView.addGestureRecognizer(tapGesture)
}
func hideKeyboard() {
searchBar.resignFirstResponder()
}

Answer 1

Add a transparent UIView when keyboard is present and remove it when keyboard is dismissed.
var searchBackgroundView = UIView()
func searchBarTextDidBeginEditing(searchBar: UISearchBar) {
searchBackgroundView = UIView(frame: CGRectMake(tableView.frame.origin.x, tableView.frame.origin.y, tableView.frame.width, tableView.frame.height))
tableView.addSubview(searchBackgroundView)
}
func searchBarTextDidEndEditing(searchBar: UISearchBar) {
searchBackgroundView.removeFromSuperview()
}

Answer 2

Two quick ideas:
present a transparent button over the entire scrollview instead of using the gesture recognizer, this would catch the events and block interaction with the scroll (table) view
store-off the gesture recognizers on the scrollview class and restore them when you are done.

Answer 3

You can try it by checking whether the searchController is active or not. Just like..
if searchController.active {
tableView.userInteractionEnabled = false
}
else {
tableView.userInteractionEnabled = true
}
Or another way that you choose :
func searchBarTextDidBeginEditing(searchBar: UISearchBar) {
self.tableView.userInteractionEnabled = false
}
func searchBarTextDidEndEditing(searchBar: UISearchBar) {
tableView.userInteractionEnabled = true
}