@IBAction func buttonCoin(_ sender: UIButton) {
let coinSide = arc4random_uniform(2)
if coinSide == 0 {
labelResult.text = "Tail"
imageCoin.image = UIImage(named: "tail")
}else{
labelResult.text = "Head"
imageCoin.image = UIImage(named: "head")
}
}
imageView.transform = CGAffineTransform(scaleX: 0.1, y: 0.1)
UIView.animate(withDuration: 0.6,
animations: { [weak self] in
self?.imageView.transform = .identity
})imageView.alpha = 0.0
UIView.animate(withDuration: 0.6,
animations: { [weak self] in
self?.imageView.alpha = 1.0
})private let animationRepeatDuration: CFTimeInterval = 2.0
private let rotationAnimatonKey: String = "rotationAnimation"
func animate(completion: @escaping () -> Void) {
CATransaction.begin()
CATransaction.setCompletionBlock { [weak self] in
guard
let rotationAnimatonKey = self?.rotationAnimatonKey,
self?.imageBackground.layer.animation(forKey: rotationAnimatonKey) != nil
else {
completion()
return
}
}
let rotation: CABasicAnimation = CABasicAnimation(keyPath: "transform.rotation.y")
rotation.toValue = NSNumber(value: Double.pi * 2)
rotation.repeatCount = Float.greatestFiniteMagnitude
rotation.repeatDuration = animationRepeatDuration
imageBackground.layer.add(rotation, forKey: rotationAnimatonKey)
CATransaction.commit()
}
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