2017-01-24 41 views
0

我在網上搜索了很長時間。但沒用。請幫助或嘗試提供一些想法如何實現這一點。存檔和取消存檔自定義類(有一個屬性作爲對象數組),總是失敗

當解除存檔應用程序崩潰,我得到這個消息:

Terminating app due to uncaught exception 'NSInvalidUnarchiveOperationException', reason: 
'*** -[NSKeyedUnarchiver decodeObjectForKey:]: cannot decode object of class (_TtCC11ArchiveTest8dogHouse3dog) 
for key (NS.objects); the class may be defined in source code or a library that is not linked' 

這是什麼意思? 任何人都可以幫忙?提前致謝。

現在,我認識到終止,因爲其他代碼,就像這樣: enter image description here

,如果我嘗試: enter image description here 它做得很好,買爲何在viewDidLoad中的代碼寫做別的哪種方法聯繫起來?類?

我有一個類:

let ModelPath = "Model.plist".cacheDir() 

class dogHouse: NSObject , NSCoding{ 

var dogs:[Dog]? 

required init(coder aDecoder: NSCoder) 
{ 
    dogs = aDecoder.decodeObject(forKey: "dogs") as? [Dog] 
    super.init() 
} 

func encode(with aCoder: NSCoder) { 
    if dogs != nil{ 
     aCoder.encode(dogs, forKey: "dogs") 
    } 

} 

class Dog: NSObject , NSCoding { 

    var name : String? 

    required init(coder aDecoder: NSCoder) 
    { 
     name = aDecoder.decodeObject(forKey: "name") as! String? 
     super.init() 
    } 

    func encode(with aCoder: NSCoder) { 
     if name != nil{ 
      aCoder.encode(name, forKey: "name") 
     } 

    } 

    //ArchiveModels 
    func saveModel() -> Bool{ 
    return NSKeyedArchiver.archiveRootObject(self, toFile: ICModelPath) 
    } 

    //UnArchiveModels 
    class func loadArchiver() -> [Dog]?{ 
     let obj = NSKeyedUnarchiver.unarchiveObject(withFile: ICModelPath) 
     if obj != nil { 
     print(obj.debugDescription) 
     let model = obj as? dogHouse 
     return model?.dogs 
     } 
    return nil 
    } 

} 

回答

0

也許你錯過了在init函數中的參數?

required init(coder aDecoder: NSCoder) 
{ 
    dogs = aDecoder.decodeObject(forKey: "dogs") as? [Dog] 
    super.init(aDecoder) //HERE 
} 
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