Unable to get my "Save" Button to work, my button does nothing when pressed - ios

Question

I'm trying to make a note taking app, however, I'm kinda stuck on how to get my save button to work. Here's what I've got so far:
My Add "Item" View
class AddViewController: UIViewController {
#IBOutlet var addShortDescription: UITextField!
#IBOutlet var addLongDescription: UITextView!
public var completion: ((String, String) -> Void)?
override func viewDidLoad() {
super.viewDidLoad()
addShortDescription.becomeFirstResponder()
navigationItem.rightBarButtonItem = UIBarButtonItem(title: "Save", style: .done, target: self, action: #selector(didTapSave))
self.title = "Add New Item"
}
#IBAction func didTapSave(_ sender: Any) {
if let text = addShortDescription.text, !text.isEmpty, !addLongDescription.text.isEmpty {
completion?(text, addLongDescription.text)
}
}
}
My Main View
class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
#IBOutlet var table: UITableView!
var models: [(ShortDescription: String, LongDescription: String)] = []
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
table.delegate = self
table.dataSource = self
self.title = "Inventory"
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return models.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
cell.textLabel?.text = models[indexPath.row].ShortDescription
cell.detailTextLabel?.text = models[indexPath.row].LongDescription
return cell
}
#IBAction func addNewInventory(){
guard let vc = storyboard?.instantiateViewController(identifier: "add") as? AddViewController else {
return
}
vc.title = "Add New Item"
vc.navigationItem.largeTitleDisplayMode = .never
vc.completion = { addShortDescription, addLongDescription in
self.navigationController?.popToRootViewController(animated: true)
self.models.append((ShortDescription: addShortDescription, LongDescription: addLongDescription))
self.table.isHidden = false
self.table.reloadData()
}
navigationController?.pushViewController(vc, animated: true)
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
tableView.deselectRow(at: indexPath, animated: true)
let model = models[indexPath.row]
// Show addLongDescription controller
guard let vc = storyboard?.instantiateViewController(identifier: "inventory") as?
EditViewController else {
return
}
vc.navigationItem.largeTitleDisplayMode = .never
vc.title = "Edit Item"
vc.addShortDescription.text = model.ShortDescription
vc.addLongDescription.text = model.LongDescription
navigationController?.pushViewController(vc, animated: true)
}
}
I have another view where I plan on allowing the user to edit the added items, I'll add that if you think it may be causing some problems.