swift - 在 Swift 中存储按下的按钮

Question

我有一个 Collection View ，您可以在其中选择 4 个按钮，这就像一个包含 A、B、C、D 的测验。我需要存储他们在转到下一个问题之前单击的按钮(他们会滑动以转到下一个问题，因为它是 Collection View ) Controller 如下所示:

首先:本质上是用于显示上面图像的代码，我创建了一个使用以下内容进行解析的数据库:

struct Question {
    let fact: String
    let question: String
    let answers: [String: String]
    let correctAnswer: String
    let revenue: String

    init?(with dictionary: [String: Any]) {
        guard let fact = dictionary["fact"] as? String,
            let question = dictionary["question"] as? String,
            let answerA = dictionary["answer_a"] as? String,
            let answerB = dictionary["answer_b"] as? String,
            let answerC = dictionary["answer_c"] as? String,
            let answerD = dictionary["answer_d"] as? String,
            let revenue = dictionary["revenue"] as? String,
            let correctAnswer = dictionary["correctAnswer"] as? String else { return nil }

        self.fact = fact
        self.question = question
        self.revenue = revenue
        var answersDict = [String: String]()

        answersDict["answer_a"] = answerA
        answersDict["answer_b"] = answerB
        answersDict["answer_c"] = answerC
        answersDict["answer_d"] = answerD

        self.answers = answersDict
        self.correctAnswer = correctAnswer

    }

第二:然后我使用以下代码显示:

extension QuestionCell {
func configure(with model: Question) {
    factLabel.text = model.fact
    questionLabel.text = model.question
    revenueLabel.text = model.revenue

    let views = answersStack.arrangedSubviews
    for view in views {
        view.removeFromSuperview()
    }
    for (id, answer) in model.answers {
        print(index)
        print(id)
        let answerLabel = UILabel()
        answerLabel.text = answer

        answersStack.addArrangedSubview(answerLabel)

        let answerButton = UIButton()
        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)

    }
}
}

有没有办法存储我点击的按钮？谢谢

Answer 1

好吧，有一个肯定的方法可以摆脱这种情况。

1. 为collectionView创建一个自定义单元格。
2. 在 customCell 类中添加按钮 socket 和操作
3. 在 customCell 类中创建并使用委托(delegate)方法，并在 ViewController 中实现 customCell 时将委托(delegate)设置为 self 。
4. 按钮操作完成后触发委托(delegate)方法(在自定义单元格内)。
5. 在 cellForItemAt 方法中使用时，为您的 customCell 提供当前索引路径。
6. 利用该索引路径来决定触发哪个按钮。

您应该考虑与此方法类似的方法，以获得可靠的解决方案。