Can't Get Simultaneous Gesture Recognition to Work

You define myTapGestureRecognizer as a new constant in viewDidload: it disappears when exiting.

Why not use tapGestureRecognizer, but then why do you need an outlet ? Either you create in storyboard or you create programmatically.

this may be interesting to read:

h ttps://www.raywenderlich.com/162745/uigesturerecognizer-tutorial-getting-started

So, I would write (but I did not test):

class ViewController: UIViewController, UIGestureRecognizerDelegate {
    var tapGestureRecognizer: UITapGestureRecognizer?
    var longPressGestureRecognizer: UILongPressGestureRecognizer?

    func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldRecognizeSimultaneouslyWith otherGestureRecognizer: UIGestureRecognizer) -> Bool {
  
        print("This gestureRecognizer function should have gotten called!")
        return true
    }

    override func viewDidLoad() {
        super.viewDidLoad()
  
       tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(reportTap(_:)))
       longPressGestureRecognizer = UILongPressGestureRecognizer(target: self, action: #selector(reportLongPress(_:)))
       tapGestureRecognizer.delegate = self
       longPressGestureRecognizer.delegate = self
    }

Maybe this could be of some help?:

h ttps://stackoverflow.com/questions/34548263/button-tap-and-long-press-gesture

Thanks, Claude31, for the advice—and for pointing out that my gesture recognizer variables were defined to exist only within viewDidLoad()!

I got the effect I wanted by creating the gesture recognizers programmatically, after first trying and failing to fix my code using the IB-generated gesture recognizers and outlets. Adding the gesture recognizers to the view was the main thing missing from your code, but that was easy to spot. For some reason, though, even the code with the IB-generated recognizers and outlets only allowed simultaneous gestures when I explicitly added the gesture recognizers to the view. Clearly, there's something I don't yet understand about how things get set up behind the scenes. In any case, the link to Ray Wenderlich's site may be helpful, since he show's how to make simultaneous gestures work through IB or code.

In any case, your help got me to a solution (below). Thanks!

// ViewController.swift

import UIKit
class ViewController: UIViewController, UIGestureRecognizerDelegate {

    var tapGestureRecognizer: UITapGestureRecognizer?
    var longPressGestureRecognizer: UILongPressGestureRecognizer?
  
    func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldRecognizeSimultaneouslyWith otherGestureRecognizer: UIGestureRecognizer) -> Bool {
        return true
    }
  
    func prepareForGestures() {
      
        tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(reportTap(_:)))
        longPressGestureRecognizer = UILongPressGestureRecognizer(target: self, action: #selector(reportLongPress(_:)))
        tapGestureRecognizer?.delegate = self
        longPressGestureRecognizer?.delegate = self
      
        if let tapGestureRecognizer = tapGestureRecognizer {
            view.addGestureRecognizer(tapGestureRecognizer)
        }
      
        if let longPressGestureRecognizer = longPressGestureRecognizer {
            view.addGestureRecognizer(longPressGestureRecognizer)
        }
    }

    override func viewDidLoad() {
        super.viewDidLoad()
        prepareForGestures()
    }
  
    @IBAction func reportTap(_ sender: UITapGestureRecognizer) {
      
        if tapGestureRecognizer?.state == .ended { print("Ended tap.") }
    }
  
    @IBAction func reportLongPress(_ sender: UILongPressGestureRecognizer) {
      
        if longPressGestureRecognizer?.state == .began { print("Began press...") }
        else if longPressGestureRecognizer?.state == .ended { print("...ended press.") }
    }
}