Stackview 不附加第二个视图

Question

我以编程方式创建了一个堆栈视图，并添加了一个我以编程方式创建的视图。但是当我尝试添加第二个视图时它不起作用。 这是我的代码：

@IBOutlet weak var codingScrollView: UIView!
let codeStackView = UIStackView()
var codeViews = [CodeView]()
let codeView1 = CodeView(name: "Lennart", date: "13/05/2002", code: "Just some code")
let codeView2 = CodeView(name: "Nina", date: "01/07/1999", code: "Also some code")

codingScrollView 是我添加到 UIScrollView 的内容视图。 codeStackView 是我之前描述过的那个 codeViews 数组用于将视图添加到 stackview。

这里是 viewDidLoad 方法：

    codeViews.append(codeView1)
    codeViews.append(codeView2)

    codingScrollView.addSubview(codeStackView)
    codingScrollView.backgroundColor = UIColor(red: 226/255, green: 226/255, blue: 226/255, alpha: 1)

    codeStackView.centerXAnchor.constraint(equalTo: codingScrollView.centerXAnchor)
    codeStackView.centerYAnchor.constraint(equalTo: codingScrollView.centerYAnchor)

    codeStackView.translatesAutoresizingMaskIntoConstraints = false

    codeStackView.spacing = 10

    codeStackView.axis = .horizontal
    codeStackView.alignment = .center

    for i in 0...codeViews.count - 1 {
        codeStackView.addSubview(codeViews[i])
        codeStackView.addArrangedSubview(codeViews[i])
    }

但如果我运行该应用程序，它不会显示第二个视图，它只会显示其中一个。

非常感谢，我真的很感谢任何帮助

Answer 1

尝试先将 codeView{1,2} 添加到堆栈视图，然后将 codeStackView 添加到 codingScrollView。

另外，请务必在进行任何约束之前设置codeStackView.translatesAutoresizingMaskIntoConstraints = false。

codeViews.append(codeView1)
codeViews.append(codeView2)

for i in 0...codeViews.count - 1 {
    codeStackView.addSubview(codeViews[i])
    codeStackView.addArrangedSubview(codeViews[i])
}

codeStackView.translatesAutoresizingMaskIntoConstraints = false

codeStackView.centerXAnchor.constraint(equalTo: codingScrollView.centerXAnchor)
codeStackView.centerYAnchor.constraint(equalTo: codingScrollView.centerYAnchor)

codeStackView.spacing = 10

codeStackView.axis = .horizontal
codeStackView.alignment = .center

codingScrollView.addSubview(codeStackView)
codingScrollView.backgroundColor = UIColor(red: 226/255, green: 226/255, blue: 226/255, alpha: 1)