Add UI Gesture Recognizer to UIView instantiated from .xib - ios

Question

I'm working with Xcode 10.0 beta 4 and Swift 4 and I'm trying to add a UIGestureRecognizers specifically a UISwipeGestureRecognizer for both left and right swipes to a UIView that has been added as a subview to my main View Controller via a nib but unfortunately the gesture doesn't seem to be recognized when I actually perform the action in simulator. Here's a snippet of what is in my viewDidLoad():
//Add gesture recognizer for when the calendar is swiped right.
let grSwipeRight = UISwipeGestureRecognizer(target: self, action: #selector(swipeRight(sender:)))
grSwipeRight.direction = UISwipeGestureRecognizer.Direction.right
calendar.calendarDays.isUserInteractionEnabled = true
calendar.calendarDays.addGestureRecognizer(grSwipeRight)
The swipeRight action in the selector is to a function that just contains a print() call and calendar is a reference to my UIView which is the class used in my .xib
class Calendar: UIView
{
#IBOutlet var calendarDays: UICollectionView!
let nibName = "Calendar"
var contentView: UIView?
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
guard let view = self.loadViewFromNib() else { return }
view.frame = self.bounds
self.addSubview(view)
self.bringSubviewToFront(view)
contentView = view
contentView?.isUserInteractionEnabled = true
}
private func loadViewFromNib() -> UIView? {
let bundle = Bundle(for: type(of: self))
let nib = UINib(nibName: nibName, bundle: bundle)
return nib.instantiate(withOwner: self, options: nil).first as? UIView
}
I setup the .xib as a UIView using Interface Builder and set the class of the view to my Calendar class and the labels and such within my .xib show up properly its just when I add any Gesture Recognizer to either the calendar(View) or objects within my calendar the gesture isn't recognized. Is this even the proper way to do something like this or should I be taking a completely different approach?
Edit:
I've included what my IB .xib and .storyboard look like if its helpful at all. Storyboard, xib

Answer 1

To be able to use gesture recognizers within my .xib, I used an override of awakeFromNib() as follows within my custom UIView Calendar class:
override func awakeFromNib()
{
super.awakeFromNib()
let touchTest = UITapGestureRecognizer(target: self, action: #selector(self.testTap(sender:)))
testingLabel.isUserInteractionEnabled = true
testingLabel.addGestureRecognizer(touchTest)
}