Question

我在从属性列表中加载一些数据时遇到了一些麻烦。看一看… 这是我的directory.plist：

我想在Main.storyboard上显示所有这些内容：

但键Position e Name将显示在第一个 TableViewController 和键Functionary，ImageFace和Phone上必须出现在第二个 TableViewController 。

为此，我做了这个：

添加到 AppDelegate 以下内容：

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
    if let url = Bundle.main.url(forResource: "directory", withExtension: "plist"), let array = NSArray(contentsOf: url) as? [[String:Any]] {
        Shared.instance.employees = array.map{Employee(dictionary: $0)}
}
return true

像这样创建Struct：

struct EmployeeDetails {
    let functionary: String
    let imageFace: String
    let phone: String

    init(dictionary: [String: Any]) {
        self.functionary = (dictionary["Functionary"] as? String) ?? ""
        self.imageFace = (dictionary["ImageFace"] as? String) ?? ""
        self.phone = (dictionary["Phone"] as? String) ?? ""
    }
}

struct Employee {
    let position: String
    let name: String
    let details: [EmployeeDetails] // [String:Any]

    init(dictionary: [String: Any]) {
    self.position = (dictionary["Position"] as? String) ?? ""
    self.name = (dictionary["Name"] as? String) ?? ""

    let t = (dictionary["Details"] as? [Any]) ?? []
    self.details = t.map({EmployeeDetails(dictionary: $0 as! [String : Any])})
    }
}

struct Shared {
    static var instance = Shared()
    var employees: [Employee] = []
}

我的第一个TableViewController ，如下所示：

class Page1: UITableViewController {

override func viewDidLoad() {
    super.viewDidLoad()

    let anEmployee = Shared.instance.employees[1]

    print("Name:", anEmployee.name)
    print("Position:", anEmployee.position)

    anEmployee.details.forEach({

        print("Functionary:", $0.functionary)
        print("ImageFace:", $0.imageFace)
        print("Phone:", $0.phone)
    })
}

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

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

override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! TableViewCell1

        cell.nameLabel.text = Shared.instance.employees[indexPath.row].name
        cell.positionLabel.text = Shared.instance.employees[indexPath.row].position

        return cell
    }

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    if let destination = segue.destination as? Page2,
        let indexPath = tableView.indexPathForSelectedRow {
        destination.newPage = Shared.instance.employees[indexPath.row].details[indexPath.row]
        tableView .deselectRow(at: indexPath, animated: true)
        }
    }
}

我的第二个TableViewController ，这里：

var newPage: EmployeeDetails! //recently added

class Page2: UITableViewController {

var newPage: EmployeeDetails!

override func viewDidLoad() {
    super.viewDidLoad()

    if let theEmployee = newPage {
        self.title = theEmployee.name
    }
}

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

override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    if let theEmployee = newPage {
        return theEmployee.details.count
    }
return 0
}

override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! TableViewCell2

    if let theEmployee = newPage {

        cell.faceImage.image = theEmployee.details[indexPath.row].imageFace as? UIImage // did not work
        cell.functionary.text = theEmployee.details[indexPath.row].functionary
        cell.phoneLabel.text = theEmployee.details[indexPath.row].phone
    }
    return cell
    }
}

当我触摸第一个TableViewController的任何项目时，我看到第二个TableViewController完全空了！调试区域显示它：

2017-03-28 17:16:28.456 plist sample[7138:425253] Unknown class Page2 in Interface Builder file.

Answer 1

根据您的plist结构：

Shared.instance.employees[indexPath.row].details

details是一个字典数组。您将其视为字典。

编辑：最初的问题是正确的......解决问题的方法多种多样（如您所见/已完成）。另一种选择，可能有用也可能没有用：

struct EmployeeDetails {
    let functionary: String
    let imageFace: String
    let phone: String

    init(dictionary: [String: Any]) {
        self.functionary = (dictionary["Functionary"] as? String) ?? ""
        self.imageFace = (dictionary["ImageFace"] as? String) ?? ""
        self.phone = (dictionary["Phone"] as? String) ?? ""
    }
}
struct Employee {
    let position: String
    let name: String
    let details: [EmployeeDetails] // [String:Any]

    init(dictionary: [String: Any]) {
        self.position = (dictionary["Position"] as? String) ?? ""
        self.name = (dictionary["Name"] as? String) ?? ""

        let t = (dictionary["Details"] as? [Any]) ?? []
        self.details = t.map({EmployeeDetails(dictionary: $0 as! [String : Any])})
    }
}

struct Shared {
    static var instance = Shared()
    var employees: [Employee] = []
}

然后你可以做你的原创：

    if let url = Bundle.main.url(forResource: "directory", withExtension: "plist"), let array = NSArray(contentsOf: url) as? [[String:Any]] {

        Shared.instance.employees = array.map{Employee(dictionary: $0)}

    }

然后通过以下方式访问数据：

    let anEmployee = Shared.instance.employees[0]

    print("Name:", anEmployee.name)
    print("Position:", anEmployee.position)

    print("Detail 0 Functionary:", anEmployee.details[0].functionary)
    print("Detail 0 ImageFace:", anEmployee.details[0].imageFace)
    print("Detail 0 Phone:", anEmployee.details[0].phone)

    // or

    anEmployee.details.forEach({

        print("Functionary:", $0.functionary)
        print("ImageFace:", $0.imageFace)
        print("Phone:", $0.phone)

    })

仅举例。

有关工作示例，请参阅https://github.com/DonMag/SWPListData。

将数据从plist加载到两个TableView

1 个答案: