iOS视图中的MVC设计以编程方式与模型- Swift对话

struct User {
    var name: String
    var age: Int
}

import UIKit

class UserView: UIView {
    let nameLabel = UILabel()
    let ageLabel = UILabel()

    override init(frame: CGRect) {
        super.init(frame: frame)
        setupUI()
    }

    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }

    private func setupUI() {
        nameLabel.text = "Name: "
        ageLabel.text = "Age: "
        addSubview(nameLabel)
        addSubview(ageLabel)

        // Layout constraints
        nameLabel.translatesAutoresizingMaskIntoConstraints = false
        ageLabel.translatesAutoresizingMaskIntoConstraints = false
        NSLayoutConstraint.activate([
            nameLabel.topAnchor.constraint(equalTo: self.topAnchor, constant: 20),
            nameLabel.leadingAnchor.constraint(equalTo: self.leadingAnchor, constant: 20),
            ageLabel.topAnchor.constraint(equalTo: nameLabel.bottomAnchor, constant: 20),
            ageLabel.leadingAnchor.constraint(equalTo: self.leadingAnchor, constant: 20)
        ])
    }

    func update(with user: User) {
        nameLabel.text = "Name: \(user.name)"
        ageLabel.text = "Age: \(user.age)"
    }
}

import UIKit

class UserController: UIViewController {
    var userView: UserView!
    var userModel: User!

    override func viewDidLoad() {
        super.viewDidLoad()
        setupUI()
        updateView()
    }

    private func setupUI() {
        userView = UserView(frame: view.bounds)
        view.addSubview(userView)
    }

    private func updateView() {
        let user = User(name: "John Doe", age: 30)
        userView.update(with: user)
    }
}

deinit {
    // 释放资源
}