給NSUserDefaults的NSArray的與錯誤的斯威夫特

我提高我的技能迅速，但我得到了這是我創建的數組的字典（NSArray中）與NSUserDefaults的給NSUserDefaults的NSArray的與錯誤的斯威夫特

錯誤。然後我想保存那本字典。

錯誤：

2014-11-22 11:50:29.222 __ Property list invalid for format: 200 (property lists cannot contain objects of type 'CFType') 2014-11-22 11:50:29.222 __ *** NSForwarding: warning: object 0x7fc6a3e03900 of class '__.Department' does not implement methodSignatureForSelector: -- trouble ahead Unrecognized selector -[__.Department isNSString__]

這些都是我的課：

請給我建議。我可能會因Array of Dictionary而失敗。

Department.swift

class Department { 
    var facultyMembers = [FacultyMember]() 
    let fullName: String 
    let shortName: String 

    init(fullName: String, shortName: String) { 
     self.fullName = fullName 
     self.shortName = shortName 
    } 

    func addMember(member: FacultyMember) { 
     facultyMembers.append(member) 
    } 
}

University.swift

class University { 
    var departments:[[Department]] 

    init(){ 
     departments = [[Department]]() 

     let userDefaults = NSUserDefaults.standardUserDefaults() 
     if let defaultItems = userDefaults.arrayForKey("departments"){ 
      departments = defaultItems as [[Department]] 
     }else{ 
      departments = [[Department]]() 
      userDefaults.setObject(departments, forKey: "departments") 
     } 
    } 
    func addDepartment(department: [Department]) { 
     departments.append(department) 

     let userDefaults = NSUserDefaults.standardUserDefaults() 
     userDefaults.setObject(departments as NSArray, forKey: "departments") 
    } 
}

如果我添加部門（其中包括一些教師），它給我的錯誤。

最好的問候。

來源

2014-11-22 Ömer ASLAN

給NSUserDefaults的NSArray的與錯誤的斯威夫特

回答

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