Ios NSUserDefaults自定义对象-属性列表对于以下格式无效:200(属性列表不能包含类型为';CFType';的对象)
对于NSUserDefaults,我必须错误地使用自定义对象。错误“属性列表对于格式:200无效(属性列表不能包含'CFType'类型的对象”)。下面是我的代码,目标类特别有趣,因为这就是我采用NSCoding协议的地方 此代码是全局的Ios NSUserDefaults自定义对象-属性列表对于以下格式无效:200(属性列表不能包含类型为';CFType';的对象),ios,objective-c,swift,Ios,Objective C,Swift,对于NSUserDefaults,我必须错误地使用自定义对象。错误“属性列表对于格式:200无效(属性列表不能包含'CFType'类型的对象”)。下面是我的代码,目标类特别有趣,因为这就是我采用NSCoding协议的地方 此代码是全局的 func saveGoals (goals : [Goal]) { var updatedGoals = NSKeyedArchiver.archivedDataWithRootObject(goals) NSUserDefaults.stand
func saveGoals (goals : [Goal]) {
var updatedGoals = NSKeyedArchiver.archivedDataWithRootObject(goals)
NSUserDefaults.standardUserDefaults().setObject(updatedGoals, forKey: "Goals")
NSUserDefaults.standardUserDefaults().synchronize()
}
func loadCustomObjectWithKey() -> [Goal] {
if let encodedObject : NSData = NSUserDefaults.standardUserDefaults().objectForKey("Goals") as? NSData {
var encodedObject : NSData? = NSUserDefaults.standardUserDefaults().objectForKey("Goals") as? NSData
var goal : [Goal] = NSKeyedUnarchiver.unarchiveObjectWithData(encodedObject!) as [Goal]
return goal
} else {
return [Goal]()
}
}
此代码位于GoalsViewController中
class GoalsViewController: MainPageContentViewController, UITableViewDelegate, UITableViewDataSource {
@IBOutlet var tableView: GoalsTableView!
var cell = GoalTableViewCell()
var goalsArray : Array<Goal> = [] //
override func viewDidLoad() {
super.viewDidLoad()
self.tableView.delegate = self
self.tableView.dataSource = self
if var storedGoals: [Goal] = loadCustomObjectWithKey() as [Goal]? {
goalsArray = storedGoals
}
//retrieve data.
var goal = Goal(title: "Walk the Dog")
goalsArray.append(goal)
saveGoals(goalsArray)
self.tableView?.reloadData()
tableView.estimatedRowHeight = 44.0
tableView.rowHeight = UITableViewAutomaticDimension
var notification = NSNotificationCenter.defaultCenter()
notification.addObserver(self, selector: "finishCreatingGoal:", name: "FinishCreatingGoal", object: nil)
}
func finishCreatingGoal(notification : NSNotification) {
if (notification.name == "FinishCreatingGoal") {
var userInfo = notification.userInfo!
var text = userInfo["text"]! as String
var index = userInfo["index"]! as Int
var cell = self.tableView.cellForRowAtIndexPath(NSIndexPath(forRow: index, inSection: 0)) as GoalTableViewCell
goalsArray[index].title = cell.goalTextField.text
saveGoalList(goalsArray)
self.tableView.reloadData()
self.tableView.scrollToRowAtIndexPath(NSIndexPath(forRow: index, inSection: 0), atScrollPosition: UITableViewScrollPosition.Middle, animated: true)
}
}
我将从一个正在工作的项目中复制代码: 下面是一个游戏对象类,其中包含来自数学闪存卡游戏的数据:
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() {
}
}
这部分看起来与您的部分大致相同,但有更多的变量类型。archiver和retriever类与您不同:
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)
}
}
最后,用于在ViewController中存储和检索的代码:
//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)
我猜您的目标对象的
title
之一为零。这一行:goalsArray[index].title=cell.goalTextField.text
保证将其设置为非nil值吗?是的,保证为非nil值。Steve,我认为最好将NSCoding协议添加到类声明数据中
//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)