ios - 将数据从 plist 加载到两个 TableView

Question

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

我想展示所有这些，就在 Main.storyboard 上:

但是键 Position e Name 将出现在第一个 TableViewController 和键 Functionary, ImageFace 和 Phone 必须出现在第二个 TableViewController 上。

为此，我做了这个:

1. 向 AppDelegate 添加以下内容:

   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
   

2. 像这样创建了一个结构:

   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] = []
   }
   

3. 我的第一个 TableViewController 是这样的:

   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)
           }
       }
   }
   

4. 我的第二个 TableViewController，在这里:

   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 完全是空的!调试区显示:

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

Answer 1

根据你的plist结构:

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

details 是字典数组。您将其视为字典。

编辑:最初的问题是正确的...解决它的多种方法(如您所见/所做)。另一种选择，可能有帮助也可能没有帮助:

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)

    })

仅举个例子。

参见 https://github.com/DonMag/SWPListData一个工作示例。