Nsuserdefaults Custom Object - Property List Invalid for Format: 200 (Property Lists Cannot Contain Objects of Type 'Cftype')

NSUserDefaults Custom object - Property list invalid for format: 200 (property lists cannot contain objects of type 'CFType')

I am going to just copy code from a working project I have:

here is the Game object class with data from a math flash card game:

import Foundation

class GameData: NSObject {

    var sign: String = "+"
    var level: Int = 1
    var problems: Int = 10
    var time: Int = 30
    var skipWrong: Bool = true
    var usedTime: Int = 0
    var correctCount: Int = 0
    var correctTopNumber: [Int] = [Int]()
    var correctBottomNumber: [Int] = [Int]()
    var wrongTopNumber: [Int] = [Int]()
    var wrongBottomNumber: [Int] = [Int]()
    var date: NSDate = NSDate()

    func encodeWithCoder(aCoder: NSCoder!) {
        aCoder.encodeObject(sign, forKey: "sign")
        aCoder.encodeInteger(level, forKey: "level")
        aCoder.encodeInteger(problems, forKey: "problems")
        aCoder.encodeInteger(time, forKey: "time")
        aCoder.encodeBool(skipWrong, forKey: "skipWrong")
        aCoder.encodeInteger(usedTime, forKey: "usedTime")
        aCoder.encodeInteger(correctCount, forKey: "correctCount")
        aCoder.encodeObject(correctTopNumber, forKey: "correctTopNumber")
        aCoder.encodeObject(correctBottomNumber, forKey: "correctBottomNumber")
        aCoder.encodeObject(wrongTopNumber, forKey: "wrongTopNumber")
        aCoder.encodeObject(wrongBottomNumber, forKey: "wrongBottomNumber")
        aCoder.encodeObject(date, forKey: "date")
    }

    init(coder aDecoder: NSCoder!) {
        sign = aDecoder.decodeObjectForKey("sign") as String
        level = aDecoder.decodeIntegerForKey("level")
        problems = aDecoder.decodeIntegerForKey("problems")
        time = aDecoder.decodeIntegerForKey("time")
        skipWrong = aDecoder.decodeBoolForKey("skipWrong")
        usedTime = aDecoder.decodeIntegerForKey("usedTime")
        correctCount = aDecoder.decodeIntegerForKey("correctCount")
        correctTopNumber = aDecoder.decodeObjectForKey("correctTopNumber") as Array
        correctBottomNumber = aDecoder.decodeObjectForKey("correctBottomNumber") as Array
        wrongTopNumber = aDecoder.decodeObjectForKey("wrongTopNumber") as Array
        wrongBottomNumber = aDecoder.decodeObjectForKey("wrongBottomNumber") as Array
        date = aDecoder.decodeObjectForKey("date") as NSDate
    }

    override init() {
    }
}

This part looks about the same as yours, but with more variable types. The archiver and retriever classes differ from you:

import Foundation

class ArchiveGameData:NSObject {

    var documentDirectories:NSArray = []
    var documentDirectory:String = ""
    var path:String = ""

    func ArchiveResults(#dataSet: [GameData]) {
        documentDirectories = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)
        documentDirectory = documentDirectories.objectAtIndex(0) as String
        path = documentDirectory.stringByAppendingPathComponent("results3.archive")

        if NSKeyedArchiver.archiveRootObject(dataSet, toFile: path) {
            //println("Success writing to file!")
        } else {
            println("Unable to write to file!")
        }
    }

    func RetrieveGameData() -> NSObject {
        var dataToRetrieve = [GameData]()
        documentDirectories = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)
        documentDirectory = documentDirectories.objectAtIndex(0) as String
        path = documentDirectory.stringByAppendingPathComponent("results3.archive")
        if let dataToRetrieve2 = NSKeyedUnarchiver.unarchiveObjectWithFile(path) as? [GameData] {
          dataToRetrieve = dataToRetrieve2
        }
        return(dataToRetrieve)
    }
}

Finally, the code for storing and retrieving from within a ViewController:

//retrieveing
    var gameDataArray = ArchiveGameData().RetrieveGameData() as [GameData]

//Archiving
      gameData = GameData() //create local object then append all the new data, then store it
gameData.sign = buttonStates.sign
        gameData.level = buttonStates.level
        gameData.problems = buttonStates.problems
        gameData.time = buttonStates.time
//etc. for all properties

      ArchiveGameData().ArchiveResults(dataSet: gameDataArray)

Can't insert object in the array, that I want add to User Defaults

The answer is in the error message:

Attempt to insert non-property list object ( "cash_app.CPaymentInfo" ) for key paymentData'

You cannot put arbitrary classes into a property list (such as NSUserDefaults). There is a specific list of classes that are acceptable. If you have other classes you want to store, you need to convert them to an acceptable class.

For documentation on saving non-property-list classes to user defaults, see Storing NSColor in UserDefaults. While that article focuses on NSColor, it applies to any object that conforms to NSCoding. See also the Note at Introduction to Property Lists.

Attempt to set a non-property-list object

Implement the <NSCoding> protocol in your entity class which you wanna save

-(void)writeArrayWithCustomObjToUserDefaults:(NSString *)keyName withArray:(NSMutableArray *)myArray {
    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    NSData *data = [NSKeyedArchiver archivedDataWithRootObject:myArray];
    [defaults setObject:data forKey:keyName];
    [defaults synchronize]; }

-(NSArray *)readArrayWithCustomObjFromUserDefaults:(NSString*)keyName {
    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    NSData *data = [defaults objectForKey:keyName];
    NSArray *myArray = [NSKeyedUnarchiver unarchiveObjectWithData:data];
    [defaults synchronize];
    return myArray;  }

Saving custom Swift class with NSCoding to UserDefaults

As @dan-beaulieu suggested I answer my own question:

Here is the working code now:

Note: Demangling of the class name was not necessary for the code to work in Playgrounds.

import Foundation

class Blog : NSObject, NSCoding {

    var blogName: String?

    override init() {}

    required init(coder aDecoder: NSCoder) {
        if let blogName = aDecoder.decodeObjectForKey("blogName") as? String {
            self.blogName = blogName
        }
    }

    func encodeWithCoder(aCoder: NSCoder) {
        if let blogName = self.blogName {
            aCoder.encodeObject(blogName, forKey: "blogName")
        }
    }

}

let ud = NSUserDefaults.standardUserDefaults()

var blog = Blog()
blog.blogName = "My Blog"

ud.setObject(NSKeyedArchiver.archivedDataWithRootObject(blog), forKey: "blog")

if let data = ud.objectForKey("blog") as? NSData {
    let unarc = NSKeyedUnarchiver(forReadingWithData: data)
    let newBlog = unarc.decodeObjectForKey("root") as Blog
}

Saving non-property list items to NSUserDefaults

From what I understand your going to want to do something like this in your MyFavorite class

- (id)initWithCoder:(NSCoder *)aDecoder
{
    _location = [aDecoder decodeObjectForKey:@"location"];
    _isOnNotificationsScreen = [aDecoder decodeObjectForKey:@"notificationScreen"];
}

- (void)encodeWithCoder:(NSCoder *)aCoder
{
[aCoder encodeObject:self.location forKey:@"location"];
[aCoder encodeObject:self.isOnNotificationsScreen forKey:@"notificationScreen"];
}

Passing Multiple Objects To WatchKit In A NSUserDefaults

Your Minion class need to implement the NSCoding. Then in your view controller you need to transfer your Minion object to NSData object.

 class Minion: NSObject, NSCoding  {
    .....
    init(coder aDecoder: NSCoder!) {
      aCoder.encodeObject(name, forKey: "name")
      aCoder.encodeObject(age, forKey: "age")
      aCoder.encodeObject(height, forKey: "height")
      aCoder.encodeObject(weight, forKey: "weight")
    }

    func encodeWithCoder(aCoder: NSCoder) {
       name = aDecoder.decodeObjectForKey("name") as String
       age = aDecoder.decodeObjectForKey("age") as String
       height = aDecoder.decodeObjectForKey("height") as String
       weight = aDecoder.decodeObjectForKey("weight") as String
    }
}

In your ViewController class:

  NSKeyedArchiver.setClassName("Minion", forClass: Minion.self)
  defaults?.setObject(NSKeyedArchiver.archivedDataWithRootObject(minions), forKey: "minions")

If you want to retrieve the data from NSUserDefaults:

if let data = defaults?.objectForKey("minions") as? NSData {
    NSKeyedUnarchiver.setClass(Minion.self, forClassName: "Minion")
    let minions = NSKeyedUnarchiver.unarchiveObjectWithData(data) as! [Minion]
}

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