如何在Swift中找到与gesture.view对应的字符串属性？

Question

我有一个包含字典数组的json文件：

"question":"Question text",
"answers":["Yes", "No"],
"answerTracker":["1a", "1b"]

我创建了一个问题类＆amp;答案按钮查看班级以显示问题＆amp;视图中的答案。

在视图控制器中，我到目前为止已显示问题，创建了答案按钮，最后为每个按钮添加了tapGestureRecogniser。

func answerTapped(gesture:UITapGestureRecognizer) {

    // Get access to the button that was tapped
    let selectionButtonThatWasTapped:SelectionButtonView? = gesture.view as? SelectionButtonView

    if let actualButton = selectionButtonThatWasTapped {

        // Find out the index for the button that has been tapped
        let selectionTappedIndex:Int? = find(self.selectionButtonArray, actualButton)

        **// Find the answer tracker for the button that has been tapped?**


        // Append the tracker for the selected button to the User Generated Code
        if let actualAnswerTracker:String = self.answerTracker as String! {

            self.userGeneratedCode.append(actualAnswerTracker)

        }

在上面的tapGestureRecognizer方法中，我现在需要找到相应的answerTracker（String）作为被点击的答案按钮（UIView）但找不到方法？对应于抽头答案的answerTracker字符串将附加到名为userGeneratedCode的String数组属性中。

有什么建议吗？

Answer 1

您无需向按钮添加dpi，无论如何都可以向按钮添加目标和选择器。如果您想知道按下了哪个按钮，可以使用width上的标签属性进行检查。