如何获取自定义滚动scrollingStackView的高度

// 假设你使用的是Swift语言和UIKit框架

// 创建自定义滚动StackView
let scrollingStackView = UIStackView()
scrollingStackView.axis = .vertical
scrollingStackView.alignment = .fill
scrollingStackView.distribution = .fill
scrollingStackView.spacing = 8

// 添加子视图到滚动StackView中
let view1 = UIView()
let view2 = UIView()
scrollingStackView.addArrangedSubview(view1)
scrollingStackView.addArrangedSubview(view2)

// 设置约束和布局
scrollingStackView.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([
    scrollingStackView.leadingAnchor.constraint(equalTo: view.leadingAnchor),
    scrollingStackView.trailingAnchor.constraint(equalTo: view.trailingAnchor),
    scrollingStackView.topAnchor.constraint(equalTo: view.topAnchor),
    scrollingStackView.bottomAnchor.constraint(equalTo: view.bottomAnchor)
])

// 获取滚动StackView的高度
let scrollingStackViewHeight = scrollingStackView.frame.size.height
print("滚动StackView的高度是：\(scrollingStackViewHeight)")