Ios 设置堆栈视图的所有属性

将rightImageView.widthAnchor设置为等于rightImageView.heightAnchor.

将内容拥抱优先级设置为viewAllLable，这样它就不会水平伸展.

快速示例:

class ViewController: UIViewController {
    
    let rightImageView: UIImageView = {
        let rightImageView = UIImageView()
        rightImageView.image = UIImage(systemName: "arrow.right")
        rightImageView.tintColor = .purple
        return rightImageView
    }()
    
    let stackview: UIStackView = {
        let v = UIStackView()
        v.translatesAutoresizingMaskIntoConstraints = false
        v.spacing = 8
        return v
    }()
    
    let titleLable: UILabel = {
        let v = UILabel()
        v.font = .systemFont(ofSize: 24.0, weight: .regular)
        v.text = "Similar Movies"
        return v
    }()

    let viewAllLable: UILabel = {
        let v = UILabel()
        v.font = .systemFont(ofSize: 24.0, weight: .regular)
        v.text = "View all"
        return v
    }()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        setUpUI()
    }
    
    private func setUpUI() {
        view.addSubview(stackview)
        stackview.addArrangedSubview(titleLable)
        stackview.addArrangedSubview(viewAllLable)
        stackview.addArrangedSubview(rightImageView)
        
        let safeArea = view.safeAreaLayoutGuide
        NSLayoutConstraint.activate([
            
            // constrain to safeArea, with 8-point "padding" on top/leading/trailing
            stackview.leadingAnchor.constraint(equalTo: safeArea.leadingAnchor, constant: 8.0),
            stackview.trailingAnchor.constraint(equalTo: safeArea.trailingAnchor, constant: -8.0),
            stackview.topAnchor.constraint(equalTo: safeArea.topAnchor, constant: 8.0),
            
            rightImageView.widthAnchor.constraint(equalTo: rightImageView.heightAnchor),
            
        ])
        
        // don't let viewAllLable stretch horizontally
        viewAllLable.setContentHuggingPriority(.required, for: .horizontal)
        
    }
    
    override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
        // toggle colors so we can see the framing
        if titleLable.backgroundColor == .yellow {
            titleLable.backgroundColor = .clear
            viewAllLable.backgroundColor = .clear
            rightImageView.backgroundColor = .clear
            
            stackview.layer.borderWidth = 0
        } else {
            titleLable.backgroundColor = .yellow
            viewAllLable.backgroundColor = .green
            rightImageView.backgroundColor = .cyan
            
            stackview.layer.borderColor = UIColor.red.cgColor
            stackview.layer.borderWidth = 1
        }
    }
}

如下所示:

无论视图宽度如何，元素宽度都保持不变:

当您运行上述代码时，点击任意位置以打开/关闭 colored颜色 ，以便您可以看到边框: