Swift UIButton和UIView之间的约束

我是快速发展的新手，从我试图解决我面临的这个问题到现在已经有几个小时了。错误与约束有关。下面是我的代码：

---

//我的约束代码

skipButtonAnchor = skipButton.anchor(view.safeAreaLayoutGuide.topAnchor, left: view.leadingAnchor, bottom: nil, right: view.trailingAnchor, topConstant: 0, leftConstant: 0, bottomConstant: 0, rightConstant: 0, widthConstant: 0, heightConstant: 50)
    
bottomStackAnchor = bottomStack.anchor(nil, left: view.leadingAnchor, bottom: view.safeAreaLayoutGuide.bottomAnchor, right: view.trailingAnchor, topConstant: 0, leftConstant: 125, bottomConstant: 0, rightConstant: 0, widthConstant: 0, heightConstant: 50)

---

//我为.anchor创建了如下函数：

func anchor(_ top: NSLayoutYAxisAnchor? = nil, left: NSLayoutXAxisAnchor? = nil, bottom: NSLayoutYAxisAnchor? = nil, right: NSLayoutXAxisAnchor? = nil, topConstant: CGFloat = 0, leftConstant: CGFloat = 0, bottomConstant: CGFloat = 0, rightConstant: CGFloat = 0, widthConstant: CGFloat = 0, heightConstant: CGFloat = 0) -> [NSLayoutConstraint] {
        translatesAutoresizingMaskIntoConstraints = false
}

override func viewDidLoad() {
    super.viewDidLoad()
    
    // setup properties for skipButton and bottomStack
    // ...
    // add subviews to bottomStack
    // ...
    
    view.addSubview(skipButton)
    view.addSubview(bottomStack)
    
    skipButton.translatesAutoresizingMaskIntoConstraints = false
    bottomStack.translatesAutoresizingMaskIntoConstraints = false
    
    // respect safe area
    let g = view.safeAreaLayoutGuide
    
    NSLayoutConstraint.activate([
        
        // constrain skipButton Top / Leading / Trailing (to safe area)
        skipButton.topAnchor.constraint(equalTo: g.topAnchor, constant: 0.0),
        skipButton.leadingAnchor.constraint(equalTo: g.leadingAnchor, constant: 0.0),
        skipButton.trailingAnchor.constraint(equalTo: g.trailingAnchor, constant: 0.0),
        
        // constrain skipButton Height = 50
        skipButton.heightAnchor.constraint(equalToConstant: 50.0),
        
        // constrain bottomStack Leading to Leading (safe-area) + 125
        bottomStack.leadingAnchor.constraint(equalTo: g.leadingAnchor, constant: 125.0),

        // constrain bottomStack Trailing / Bottom (to safe-area)
        bottomStack.trailingAnchor.constraint(equalTo: g.trailingAnchor, constant: 0.0),
        bottomStack.bottomAnchor.constraint(equalTo: g.bottomAnchor, constant: 0.0),

        // constrain bottomStack Height = 50
        bottomStack.widthAnchor.constraint(equalToConstant: 50.0),
        
    ])

}

我期待着寻求帮助。提前感谢

“我对Swift development还不熟悉”——因为您是新手，我强烈建议您使用标准约束语法，直到您了解了约束和自动布局的工作原理然后如果您觉得有帮助，请使用“助手函数”

试着这样做：

func anchor(_ top: NSLayoutYAxisAnchor? = nil, left: NSLayoutXAxisAnchor? = nil, bottom: NSLayoutYAxisAnchor? = nil, right: NSLayoutXAxisAnchor? = nil, topConstant: CGFloat = 0, leftConstant: CGFloat = 0, bottomConstant: CGFloat = 0, rightConstant: CGFloat = 0, widthConstant: CGFloat = 0, heightConstant: CGFloat = 0) -> [NSLayoutConstraint] {
        translatesAutoresizingMaskIntoConstraints = false
}

override func viewDidLoad() {
    super.viewDidLoad()
    
    // setup properties for skipButton and bottomStack
    // ...
    // add subviews to bottomStack
    // ...
    
    view.addSubview(skipButton)
    view.addSubview(bottomStack)
    
    skipButton.translatesAutoresizingMaskIntoConstraints = false
    bottomStack.translatesAutoresizingMaskIntoConstraints = false
    
    // respect safe area
    let g = view.safeAreaLayoutGuide
    
    NSLayoutConstraint.activate([
        
        // constrain skipButton Top / Leading / Trailing (to safe area)
        skipButton.topAnchor.constraint(equalTo: g.topAnchor, constant: 0.0),
        skipButton.leadingAnchor.constraint(equalTo: g.leadingAnchor, constant: 0.0),
        skipButton.trailingAnchor.constraint(equalTo: g.trailingAnchor, constant: 0.0),
        
        // constrain skipButton Height = 50
        skipButton.heightAnchor.constraint(equalToConstant: 50.0),
        
        // constrain bottomStack Leading to Leading (safe-area) + 125
        bottomStack.leadingAnchor.constraint(equalTo: g.leadingAnchor, constant: 125.0),

        // constrain bottomStack Trailing / Bottom (to safe-area)
        bottomStack.trailingAnchor.constraint(equalTo: g.trailingAnchor, constant: 0.0),
        bottomStack.bottomAnchor.constraint(equalTo: g.bottomAnchor, constant: 0.0),

        // constrain bottomStack Height = 50
        bottomStack.widthAnchor.constraint(equalToConstant: 50.0),
        
    ])

}

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“我面临的问题”是什么？谢谢你的帮助！：）