swift - 将 Tableview Cell 制作成按钮以允许弹出窗口

Question

我正在尝试为 tableview 单元格制作一个弹出窗口。我想要它，以便当按下任何“单元格”时，屏幕上会显示一个弹出窗口。我似乎无法弄清楚如何将每个单元格变成一个按钮来调用要启动的窗口。

表格 View 方法

import UIKit

class ContactsViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {

private let contacts = ContactAPI.getContacts() // model
let contactsTableView = UITableView() // view

var success = true

lazy var popUpWindow: PopUpWindow = {
    let view = PopUpWindow()
    view.translatesAutoresizingMaskIntoConstraints = false
    view.layer.cornerRadius = 5
    view.delegate = self as! PopUpDelegate
    return view
}()

let visualEffectView: UIVisualEffectView = {
    let blurEffect = UIBlurEffect(style: .light)
    let view = UIVisualEffectView(effect: blurEffect)
    view.translatesAutoresizingMaskIntoConstraints = false
    return view
}()

let button: UIButton = {

    let button = UIButton(type: .system)
    button.backgroundColor = .white
    button.setTitle("one", for: .normal)
    button.setTitleColor(UIColor.blue, for: .normal)
    button.addTarget(self, action: #selector(handleShowPopUp), for: .touchUpInside)
    button.translatesAutoresizingMaskIntoConstraints = false
    button.layer.cornerRadius = 5
    return button
}()

override func viewDidLoad() {
    super.viewDidLoad()

    // Do any additional setup after loading the view.
    view.backgroundColor = .white

    view.addSubview(contactsTableView)

    contactsTableView.translatesAutoresizingMaskIntoConstraints = false

    contactsTableView.topAnchor.constraint(equalTo:view.safeAreaLayoutGuide.topAnchor).isActive = true
    contactsTableView.leftAnchor.constraint(equalTo:view.safeAreaLayoutGuide.leftAnchor).isActive = true
    contactsTableView.rightAnchor.constraint(equalTo:view.safeAreaLayoutGuide.rightAnchor).isActive = true
    contactsTableView.bottomAnchor.constraint(equalTo:view.safeAreaLayoutGuide.bottomAnchor).isActive = true

    contactsTableView.dataSource = self
    contactsTableView.delegate = self

    contactsTableView.register(ContactTableViewCell.self, forCellReuseIdentifier: "contactCell")

    navigationItem.title = "Contacts"
}

func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    return contacts.count
}

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "contactCell", for: indexPath) as! ContactTableViewCell

    cell.contact = contacts[indexPath.row]

    view.addSubview(button)
    button.centerYAnchor.constraint(equalTo: view.centerYAnchor).isActive = true
    button.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true
    button.heightAnchor.constraint(equalToConstant: 50).isActive = true
    button.widthAnchor.constraint(equalToConstant: view.frame.width - 32).isActive = true

    view.addSubview(visualEffectView)
    visualEffectView.leftAnchor.constraint(equalTo: view.leftAnchor).isActive = true
    visualEffectView.bottomAnchor.constraint(equalTo: view.bottomAnchor).isActive = true
    visualEffectView.rightAnchor.constraint(equalTo: view.rightAnchor).isActive = true
    visualEffectView.topAnchor.constraint(equalTo: view.topAnchor).isActive = true

    visualEffectView.alpha = 0

    return cell
}

func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {


}

func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
    return 100
}


// MARK: - Selectors

@objc func handleShowPopUp() {
    view.addSubview(popUpWindow)
    popUpWindow.centerYAnchor.constraint(equalTo: view.centerYAnchor, constant: -40).isActive = true
    popUpWindow.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true
    popUpWindow.heightAnchor.constraint(equalToConstant: view.frame.width - 64).isActive = true
    popUpWindow.widthAnchor.constraint(equalToConstant: view.frame.width - 64).isActive = true

    popUpWindow.showSuccessMessage = success
    success = !success

    popUpWindow.transform = CGAffineTransform(scaleX: 1.3, y: 1.3)
    popUpWindow.alpha = 0

    UIView.animate(withDuration: 0.5) {
        self.visualEffectView.alpha = 1
        self.popUpWindow.alpha = 1
        self.popUpWindow.transform = CGAffineTransform.identity
    }
}

}

弹出委托(delegate)

extension ContactsViewController: PopUpDelegate {

func handleDismissal() {
    UIView.animate(withDuration: 0.5, animations: {
        self.visualEffectView.alpha = 0
        self.popUpWindow.alpha = 0
        self.popUpWindow.transform = CGAffineTransform(scaleX: 1.3, y: 1.3)
    }) { (_) in
        self.popUpWindow.removeFromSuperview()
        print("Did remove pop up window..")
    }
}

}

Answer 1

UITableViewDelegate 的 didSelectRowAt 方法用于此目的。您可以在那里调用您的 handleShowPopUp 方法。您有什么理由不想使用它吗？