尝试获取 2 个视图之一的 frame.height，它们在 stackview 中均等填充

Question

我在垂直堆栈视图中有 2 个视图（bothalf 和 tophalf）。他们的约束依赖于 stackview.I 在 botHalfView 中有一个水平堆栈视图（containerStackView3）。它的前导、尾随和高度约束取决于 botHalfView。在调试 window 时，我还可以在控制台上看到 bothalfview.frame.height=0 的高度，我将其添加为 horizontalstackview 的约束。因此，bothalfview 内的 horizontalstackview 不显示任何维度。我应该将 horizontalstackview 的高度分配给哪个约束？或者任何其他解决方案？

       let containerStackView3 = UIStackView()
        containerStackView3.translatesAutoresizingMaskIntoConstraints = false
        containerStackView3.axis = .vertical
        containerStackView3.distribution = .fillEqually
        containerStackView3.spacing = 1
 //adding views
        containerStackView1.addArrangedSubview(botHalfView2)
        botHalfView2.addSubview(containerStackView3)

//constraints bothalfview 
        botHalfView2.bottomAnchor.constraint(equalTo: 
        containerStackView1.bottomAnchor, constant: 0).isActive = true
        botHalfView2.leadingAnchor.constraint(equalTo: 
        containerStackView1.leadingAnchor, constant: 0).isActive = true
        botHalfView2.trailingAnchor.constraint(equalTo: 
        containerStackView1.trailingAnchor, constant: 0).isActive = true

// Constraints of the stack view inside the bothalfview
        containerStackView3.leadingAnchor.constraint(equalTo: 
        botHalfView2.leadingAnchor, constant: 0).isActive = true
        containerStackView3.trailingAnchor.constraint(equalTo: 
        botHalfView2.trailingAnchor, constant: 0).isActive = true
        containerStackView3.bottomAnchor.constraint(equalTo: 
        botHalfView2.bottomAnchor, constant: 0).isActive = true

  containerStackView3.heightAnchor.constraint(equalToConstant:botHalfView2.frame.height).isActive = true

Answer 1

如果您需要容器高度与 bot half 相同，那么执行此操作 // bothalfview

中堆栈视图的约束

    containerStackView3.leadingAnchor.constraint(equalTo: 
    botHalfView2.leadingAnchor, constant: 0).isActive = true
    containerStackView3.trailingAnchor.constraint(equalTo: 
    botHalfView2.trailingAnchor, constant: 0).isActive = true
    containerStackView3.bottomAnchor.constraint(equalTo: 
    botHalfView2.bottomAnchor, constant: 0).isActive = true
    containerStackView3.topAnchor(equalTo: 
    botHalfView2.topAnchor, constant: 0).isActive = true

尝试获取 2 个视图之一的 frame.height，它们在 stackview 中均等填充

Trying to get frame.height of one of the 2 views, that filled equally inside of a stackview

autolayout

swift

uistackview