IBAction stops working when I connect IBOutlet - swift

Question

I have an IBAction wired up to a button in my storyboard that plays a sound. This works just fine. However, when I wire up an IBOutlet to the same button, the code for the outlet takes over and the IBAction stops working. In this case, the IBOutlet serves the purpose of making the button pulse with animation. Here is my code:
import UIKit
import Firebase
import AVFoundation
class Page1: UIViewController, AVAudioPlayerDelegate, UIAlertViewDelegate {
#IBOutlet weak var scrollView: UIScrollView!
#IBOutlet weak var pageControl: UIPageControl!
#IBOutlet weak var testpulse: UIButton!
override func viewDidLoad() {
super.viewDidLoad()
let url = Bundle.main.url(forResource: "ahh", withExtension: "mp3")
do {
ahh = try AVAudioPlayer(contentsOf: url!)
ahh.prepareToPlay()
}
catch let error as NSError {
print(error.debugDescription)
}
testpulse.isUserInteractionEnabled = true
let tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(Page1.addPulse))
tapGestureRecognizer.numberOfTapsRequired = 1
testpulse.addGestureRecognizer(tapGestureRecognizer)
}
#objc func addPulse(){
let pulse = Pulsing(numberOfPulses: 1, radius: 110, position: testpulse.center)
pulse.animationDuration = 0.8
pulse.backgroundColor = UIColor.purple.cgColor
self.view.layer.insertSublayer(pulse, below: testpulse.layer)
}
#IBAction func ahh(_ sender: Any) {
ahh.play()
}
}
And for my Swift animation file I have this:
import UIKit
class Pulsing: CALayer {
var animationGroup = CAAnimationGroup()
var initialPulseScale:Float = 0
var nextPulseAfter:TimeInterval = 0
var animationDuration:TimeInterval = 1.5
var radius:CGFloat = 200
var numberOfPulses:Float = Float.infinity
override init(layer: Any) {
super.init(layer: layer)
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
}
init (numberOfPulses:Float = Float.infinity, radius:CGFloat, position:CGPoint) {
super.init()
self.backgroundColor = UIColor.black.cgColor
self.contentsScale = UIScreen.main.scale
self.opacity = 0
self.radius = radius
self.numberOfPulses = numberOfPulses
self.position = position
self.bounds = CGRect(x: 0, y: 0, width: radius * 2, height: radius * 2)
//self.cornerRadius = radius
DispatchQueue.global(qos: DispatchQoS.QoSClass.default).async {
self.setupAnimationGroup()
DispatchQueue.main.async {
self.add(self.animationGroup, forKey: "pulse")
}
}
setupAnimationGroup()
self.add(animationGroup, forKey: "pulse")
}
func createScaleAnimation () -> CABasicAnimation {
let scaleAnimation = CABasicAnimation(keyPath: "transform.scale.xy")
scaleAnimation.fromValue = NSNumber(value: initialPulseScale)
scaleAnimation.toValue = NSNumber(value: 1)
scaleAnimation.duration = animationDuration
return scaleAnimation
}
func createOpacityAnimation() -> CAKeyframeAnimation? {
let opacityAnimation = CAKeyframeAnimation(keyPath: "opacity")
opacityAnimation.duration = animationDuration
opacityAnimation.values = [0.4, 0.8, 0]
opacityAnimation.keyTimes = [0, 0.2, 1]
return opacityAnimation
}
func setupAnimationGroup() {
self.animationGroup = CAAnimationGroup()
self.animationGroup.duration = animationDuration + nextPulseAfter
self.animationGroup.repeatCount = numberOfPulses
let defaultCurve = CAMediaTimingFunction(name: kCAMediaTimingFunctionDefault)
self.animationGroup.timingFunction = defaultCurve
self.animationGroup.animations = [createScaleAnimation(), createOpacityAnimation()!]
}
}
When I connect the IBAction to my button, the sound works. However when I connect the IBOutlet, the animation works but the IBAction doesn't. What could be causing this? It's still connected in the storyboard.

Answer 1

import UIKit
import Firebase
import AVFoundation
class Page1: UIViewController, AVAudioPlayerDelegate, UIAlertViewDelegate {
#IBOutlet weak var scrollView: UIScrollView!
#IBOutlet weak var pageControl: UIPageControl!
#IBOutlet weak var testpulse: UIButton!
override func viewDidLoad() {
super.viewDidLoad()
let url = Bundle.main.url(forResource: "ahh", withExtension: "mp3")
do {
ahh = try AVAudioPlayer(contentsOf: url!)
ahh.prepareToPlay()
}
catch let error as NSError {
print(error.debugDescription)
}
testpulse.isUserInteractionEnabled = true
}
#objc func addPulse(){
let pulse = Pulsing(numberOfPulses: 1, radius: 110, position: testpulse.center)
pulse.animationDuration = 0.8
pulse.backgroundColor = UIColor.purple.cgColor
self.view.layer.insertSublayer(pulse, below: testpulse.layer)
}
#IBAction func ahh(_ sender: Any) {
ahh.play()
addPulse()
}
}