in QuizDemo/QuizDemo/Controllers/PlayerViewController.swift [73:86]
func show(_ question: Question) {
questionView.layer.removeAllAnimations()
questionStackView.subviews.forEach { $0.layer.removeAllAnimations(); $0.removeFromSuperview() }
questionView.alpha = 1
questionTitle.text = question.question
questionTitle.sizeToFit()
question.answers.forEach { (answer) in
let answerButton = AnswerButton(answer)
answerButton.addTarget(self, action: #selector(answerTapped(_:)), for: .touchUpInside)
questionStackView.addArrangedSubview(answerButton)
}
currentQuestion = question
questionView.isHidden = false
}