Action not being triggered for UIBarButtonItem - ios

Question

first post so apologies if I mess something up. I have researched this for hours upon hours and read other posts here on stack exchange to no avail.
I have created a nib file that defines a custom view and have defined a custom class (UIView) to manage the outlets of the custom view. As you can see from the code below excerpted from my custom UIView class associated with the nib, I have a date picker as the input view for the custom class and a UIToolBar with two UIBarButtonItems. Both of these appear as desired through a tap gesture recognizer... however the problem is the UIBarButtonItems do not call the action when tapped. Placing a breakpoint in the action function reveals that the code is never run. I feel that something with the view lifecycle is preventing a reference from being made, but I am new to Swift so some help here would be appreciated. I don't think it is selector syntax as the tap gesture recognizer works as desired. I've tried messing with button click handling access levels. I've tried doing input view setup when the view awakes from the nib as well, along with trying to put the code in different parts of the lifecycle.
If it matters for lifecycle's sake, this nib is a part of a table view cell. I call for this nib to be loaded when the table view cell awakes from it's nib.
Thanks!
#IBOutlet weak var timerStackView: UIStackView!{
didSet{
let tapGesture = UITapGestureRecognizer(target: self, action: #selector(HandleTap(_:)))
timerStackView.addGestureRecognizer(tapGesture)
}
}
var datePicker: UIDatePicker {
let picker = UIDatePicker()
picker.backgroundColor = UIColor.black
picker.isOpaque = false
picker.setValue(UIColor.white, forKey: "textColor")
return picker
}
var datePickerAccessoryView: UIToolbar {
let accessoryView = UIToolbar()
let doneButton = UIBarButtonItem(title: "Done", style: UIBarButtonItemStyle.done, target: self, action: #selector(handleDatePickerButtonClick(_:)))
doneButton.tintColor = UIColor.white
let cancelButton = UIBarButtonItem(title: "Cancel", style: UIBarButtonItemStyle.plain, target: self, action: #selector(handleDatePickerButtonClick(_:)))
cancelButton.tintColor = UIColor.white
accessoryView.setItems([cancelButton, doneButton], animated: true)
return accessoryView
}
override var inputView: UIView? {return datePicker}
override var inputAccessoryView: UIView? {return datePickerAccessoryView}
override var canBecomeFirstResponder: Bool {return true}
override var canResignFirstResponder: Bool {return true}
// MARK: - Private functions
#objc fileprivate func HandleTap(_ sender: UITapGestureRecognizer) -> Void {
if !self.isFirstResponder {
switch sender.state {
case .ended:
datePicker.date = Date()
self.becomeFirstResponder()
default:
break
}
}
}
#objc #IBAction internal func handleDatePickerButtonClick(_ sender: UIBarButtonItem) -> Void {
switch sender.title! {
case "Done":
// To be implemented
case "Cancel":
// To be implemented
default:
break
}
}

Answer 1

You are initialising the UIToolbar without a frame and that would make it not register any touch events because they would be out of the toolbar's bounds.
Replace let accessoryView = UIToolbar() with something like let accessoryView = UIToolbar(frame: CGRect(x: 0, y: 0, width: view.bounds.width, height: 44))
Or you can call accessoryView.sizeToFit() before return accessoryView

Answer 2

I suppose the tap gesture recognizer is interfering with native UIBarButtonItem click events. But why do you use a gesture recognizer for that?
You should better add an action to each particular UIBarButtonItem.