swift - Swift 中的枚举滑动

Question

所以我在枚举打印按钮的地方有这个函数

 for (index, answer) in model.answers.enumerated() {
        print(index)

        let answerLabel = UILabel()
        answerLabel.text = answer

        answersStack.addArrangedSubview(answerLabel)

        let answerButton = UIButton()
        answerButton.tag = index
        let imageNormal = UIImage(named: "circle_empty")
        answerButton.setImage(imageNormal, for: .normal)
        let imageSelected = UIImage(named: "circle_filled")
        answerButton.setImage(imageSelected, for: .selected)
        answerButton.setTitleColor(.black, for: .normal)
        answerButton.addTarget(self, action: #selector(answerPressed(_:)), for: .touchUpInside)

        answersStack.addArrangedSubview(answerButton)

    }
}

起初，它看起来像第一张图片，但当我在 Collection View 中滑动几次时，它看起来像第二张图片。我觉得它与枚举函数有关，但我不确定为什么。在这个问题上的一些帮助将不胜感激! - 谢谢

Answer 1

Collection View 重用单元格，因此您需要在添加新答案之前从 answersStack 中删除所有答案

let views = answersStack.arrangedSubviews
for view in views {
    view.removeFromSuperview()
}

for (index, answer) in model.answers.enumerated() {
    ...
}