访问嵌套堆栈视图

Question

显然是在监督简单的事情。需要访问另一个堆栈视图中的嵌套堆栈视图。

如果我想为乘客2的所有嵌套stackView设置间距，我该怎么做？

// Select passenger 2
let tag = 2

// Select wrapper stackView for passenger 2
let stackView = self.view.viewWithTag(tag) as! UIStackView!

let nestedStackViews = stackView. <-- WHAT GOES HERE??

for sv in nestedStackViews{
    sv?.spacing = 0 // Set nested stackView spacing to 0 to avoid constraint issues
}

要可视化（需要将firstName_P2，surname_P2和email_P2的间距设置为0）

解决方案：根据Winter的回答

为可能苦苦挣扎的其他人提供更多详细信息，请务必将子视图转换为stackview

// Select passenger 2
let tag = 2

// Select wrapper stackView for passenger 2
let stackView = self.view.viewWithTag(tag) as! UIStackView!

if let nestedStackViews = stackView?.subviews{
    for sv in nestedStackViews{
        let nsv = sv as! UIStackView
        nsv.spacing = 0
    }
}

Answer 1

使用subviews：stackView.subviews