Question

我有Employee.swift，其中包含以下代码：

import Foundation

struct Employee {
    var name: String
    var favoriteLinks: [String]
    var links: [String]

    init(name: String, favoriteLinks: [String], links: [String]) {
        self.name = name
        self.favoriteLinks = favoriteLinks
        self.links = links
    }
}

我有使用TableView的ViewController.swift，代码如下：

import UIKit

class ViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {

    var lists: [Employee] = [People(name: "Employee 1",
                                  favoriteLinks: ["Facebook","Twitter"], 
                                  links: ["www.facebook.com","www.twitter.com"])
                            ]

    @IBOutlet weak var tableView: UITableView!

    override func viewDidLoad() {
        super.viewDidLoad()
        tableView.dataSource = self
        tableView.delegate = self
    }

    func numberOfSections(in tableView: UITableView) -> Int {
        return 1
    }

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

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

        cell.textLabel?.text = lists[indexPath.row].name
        return cell
    }


override func prepare(for segue: UIStoryboardSegue, sender: Any?) {

    if segue.identifier == "showLinks" {
        if let indexPath = self.tableView.indexPathForSelectedRow {
            let destination = segue.destination as? SecondTableViewController
            destination?.talks = lists[indexPath.row].talk
            destination?.links = lists[indexPath.row].link

        }
    }
}

}

另一个包含以下代码的TableViewController：

import UIKit

class SecondTableViewController: UITableViewController {

var favoriteLinks: [String] = []
var links: [String] = []

override func viewDidLoad() {
    super.viewDidLoad()

}

// MARK: - Table view data source

override func numberOfSections(in tableView: UITableView) -> Int {
    return 1
}

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


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

    cell.textLabel?.text = favoriteLinks[indexPath.row]

    return cell
}
 }

我创建了一个属性，其中包含员工姓名以及他最喜欢的链接和链接的列表。 ViewController包含一个只应包含员工姓名的tableview，如果单击该员工，您将被重定向到另一个带有他最喜欢的列表列表的tableview。

这就是问题所在。因为tableview只显示文本而不显示链接。我希望文本也包含链接，如果单击该链接将指向您连接的链接。例如，如果点击Facebook，它会显示给www.facebook.com。实现这一目标的最佳方法是什么？

我尝试创建两个单独的数组来包含信息，但我不知道如何调用包含该链接的数组。任何帮助，将不胜感激。谢谢！

Answer 1

您必须在didSelectRowAt中添加SecondTableViewController，如下所示：

如果您的lists如下所示：

var lists: [Employee] = [Employee(name: "Employee 1",
                                favoriteLinks: ["Facebook","Twitter"],
                                links: ["http://www.facebook.com","http://www.twitter.com"])
]
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
    UIApplication.shared.open(URL(string: links[indexPath.row])!, options: [:])
}

如果您的lists如下所示：

var lists: [Employee] = [Employee(name: "Employee 1",
                                favoriteLinks: ["Facebook","Twitter"],
                                links: ["www.facebook.com","www.twitter.com"])
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
    var urlStr: String = links[indexPath.row]
    if !urlStr.hasPrefix("http") && !urlStr.hasPrefix("https") {
        urlStr = "http://\(urlStr)"
    }
    UIApplication.shared.open(URL(string: urlStr)!, options: [:])
}

Answer 2

更好的是，将整个Employee记录传递给第二个视图控制器：

class ViewController: UITableViewController {
    // Add the https protocol for the link
    var lists: [Employee] = [
        Employee(name: "Employee 1",
                favoriteLinks: ["Facebook","Twitter"],
                links: ["https://www.facebook.com","https://www.twitter.com"])
    ]

    ...

    func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        if segue.identifier == "showLinks" {
            if let indexPath = self.tableView.indexPathForSelectedRow {
                let destination = segue.destination as! SecondTableViewController
                // Pass the whole employee record to the second view controller
                destination.employee = lists[indexPath.row]
            }
        }
    }
}

第二个视图控制器：

class SecondTableViewController: UITableViewController {
    var employee: Employee!

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

    // MARK: - Table view data source
    override func numberOfSections(in tableView: UITableView) -> Int {
        return 1
    }

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

    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        // Select the prototype cell in IB and change its style to Subtitle if you want a 2-line label
        // Alternatively you can hide the link altogether, it doesn't affect the outcome
        let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)

        // For the first line, we display the name of the link
        cell.textLabel?.text = employee.favoriteLinks[indexPath.row]

        // For the second line, we display the address of the link
        cell.detailTextLabel?.text = employee.links[indexPath.row]
        cell.detailTextLabel?.textColor = .blue
        return cell
    }

    override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        let href = employee.links[indexPath.row]
        let url = URL(string: href)!

        // Open the URL in whatever app that registered to open it. That could be
        // the Facebook app or the Twitter app instead of Safari. After it has been
        // opened, de-highlight the cell
        UIApplication.shared.open(url, options: [:], completionHandler: { _ in tableView.selectRow(at: nil, animated: false, scrollPosition: .none) })
    }
}

TableView包含两个信息数组

2 个答案: