Stackview内的布局约束（以编程方式快速移动）

Question

我正在尝试为我的应用程序创建一个About页面，但我在以编程方式添加的约束中苦苦挣扎。我仍在学习整个概念。

这是我的代码，我已复制到操场上

import UIKit
import PlaygroundSupport

class TestViewController: UIViewController {

    var aboutText:[String] = []
    var fbLinks:[String] = []

    let scrollView = UIScrollView()
    let stackView = UIStackView()

    override func viewDidLoad() {
        super.viewDidLoad()

        //Add and setup scroll view
        self.view.addSubview(self.scrollView)
        self.scrollView.translatesAutoresizingMaskIntoConstraints = false;


        //Constrain scroll view
        self.scrollView.leadingAnchor.constraint(equalTo: self.view.leadingAnchor, constant: 5).isActive = true;
        self.scrollView.topAnchor.constraint(equalTo: self.view.topAnchor, constant: 30).isActive = true;
        self.scrollView.trailingAnchor.constraint(equalTo: self.view.trailingAnchor, constant: 5).isActive = true;
        self.scrollView.bottomAnchor.constraint(equalTo: self.view.bottomAnchor, constant: 0).isActive = true;

        self.scrollView.addSubview(self.stackView)
        self.stackView.translatesAutoresizingMaskIntoConstraints = false
        self.stackView.axis = .vertical
        self.stackView.alignment = UIStackView.Alignment.leading
        self.stackView.spacing = 10;

        //constrain stack view to scroll view
        self.stackView.leadingAnchor.constraint(equalTo: self.scrollView.leadingAnchor).isActive = true;
        self.stackView.topAnchor.constraint(equalTo: self.scrollView.topAnchor).isActive = true;
        self.stackView.trailingAnchor.constraint(equalTo: self.scrollView.trailingAnchor).isActive = true;
        self.stackView.bottomAnchor.constraint(equalTo: self.scrollView.bottomAnchor).isActive = true;

        //constrain width of stack view to width of self.view, NOT scroll view
        self.stackView.widthAnchor.constraint(equalTo: self.view.widthAnchor).isActive = true;

        //Text Label
        aboutText.append("Lorem ipsum dolor sit amet, consectetur adipiscing elit.")
        aboutText.append("Maecenas sed pulvinar est. Integer mattis mollis eleifend. Integer suscipit arcu sit amet erat rhoncus malesuada. Nam feugiat augue id leo maximus dignissim id sed libero. Proin dapibus metus vel nisl ultrices, quis laoreet metus malesuada. Lorem ipsum dolor sit amet, consectetur adipiscing elit. ")
        aboutText.append(" penatibus et magnis dis parturient montes, nascetur ridiculus mus. Sed sit amet dui consectetur, vulputate felis sed, volutpat dui. Quisque eu ex eu nulla facilisis aliquet. Vestibulum vitae lacus non sapien posuere commodo et eget arcu. Sed quis eros condimentum, pharetra ligula non, gravida ex. Cras luctus com")
        aboutText.append(" Praesent luctus nulla eget condimentum volutpat. Nunc metus odio, commodo sit amet placerat non, cursus posuere sem. Mauris lorem felis, elementum vel purus")


        fbLinks.append("Some text")
        fbLinks.append("Some other text but longer")
        fbLinks.append("Some other text but way longer then the previous was")
        fbLinks.append("text again what a surprise")
        fbLinks.append("guess what this is a text too")



        let image = UIImage(systemName: "house")
        let imageView = UIImageView(image: image!)
        imageView.heightAnchor.constraint(equalToConstant: 60).isActive = true
        imageView.widthAnchor.constraint(equalToConstant: 60).isActive = true
        stackView.addArrangedSubview(imageView)

        for text in aboutText
        {
            stackView.addArrangedSubview(generateText(text:text))
        }



        stackView.addArrangedSubview(generateStackedItem(imageName:"bell",text: "contact_us"))
        stackView.addArrangedSubview(generateStackedItem(imageName:"bolt",text: "rate_us_ios"))

        for link in fbLinks
        {
            let sw:UIStackView = generateStackedItem(imageName:"bolt",text: link)
            stackView.addArrangedSubview(sw)
            sw.leadingAnchor.constraint(equalTo: self.stackView.leadingAnchor).isActive = true;
            sw.trailingAnchor.constraint(equalTo: self.stackView.trailingAnchor).isActive = true;
        }



    }

    func generateText(text:String)->UILabel
    {
        let textLabel = UILabel()
        textLabel.widthAnchor.constraint(equalToConstant: self.view.frame.width).isActive = true
        textLabel.text  = NSLocalizedString(text, comment: "")
        textLabel.textAlignment = .left
        textLabel.numberOfLines = 0
        textLabel.lineBreakMode = .byWordWrapping


        return textLabel
    }

    func generateStackedItem(imageName:String,text:String)->UIStackView
    {
        let stackView   = UIStackView()
        stackView.axis  = NSLayoutConstraint.Axis.horizontal
        stackView.distribution  = .fill
        stackView.alignment = UIStackView.Alignment.leading
        stackView.spacing   = 5.0

        let image = UIImage(systemName: imageName)
        let imageView = UIImageView(image: image!)
        imageView.translatesAutoresizingMaskIntoConstraints = false
        imageView.heightAnchor.constraint(equalToConstant: 20).isActive = true
        imageView.widthAnchor.constraint(equalToConstant: 20).isActive = true

        let label = generateText(text: text)

        stackView.addArrangedSubview(imageView)
        stackView.addArrangedSubview(label)

        stackView.translatesAutoresizingMaskIntoConstraints = false

        //stackView.heightAnchor.constraint(equalToConstant: label.frame.height).isActive = true

        stackView.heightAnchor.constraint(equalToConstant: 50).isActive = true



        return stackView
    }

}



let vc = TestViewController()
vc.view.backgroundColor = .white
PlaygroundPage.current.liveView = vc

这是我标记了3样的页面的样子

[

我想将大房子图标放在中间，但我不知道如何，因为我的stackview的对齐方式是领先的。
我将链接之间的间距增大，以便可以看到我的较长文本，所以我的问题是如何根据所包含文本的高度来设置内部stackview的大小。
如何将闪电图标和文本垂直放置在stackview中？
我想向我的stackview中的链接（带有闪电图标的链接）添加敲击手势，如果可能的话，我希望使用闭包操作。如果不能使用闭包，可以请我帮忙，或者建议其他解决方案。我这样尝试过，但对我不起作用link

先谢谢您。