CKRecord在NSData中的转换

Question

我正试图在我的NSUserDefaults上存储一个NSUserDefaults。但据我所知，默认设置不会采用CKRecords，而是会使用NSData。

我正在寻找关于如何将我的CKRecord转换为NSData的帮助。有可能做到吗？

To NSData

func set_activeLinkRequest(record: CKRecord) {
        print("PublicUsers - set_activeLinkRequest \(record)")

        var data = NSData()

        // convert the record into NSData

        NSUserDefaults.standardUserDefaults().setObject(data, forKey: "activeLinkRequest")
        NSUserDefaults.standardUserDefaults().synchronize()
    }

回到CKRecord

func get_activeLinkRequest() -> CKRecord {
    let record = NSUserDefaults.standardUserDefaults().objectForKey("activeLinkRequest") as! NSData

    // convert NSDate into CKRecord

    print("PublicUsers = get_activeLinkRequest \(value)")
    return record
}

Answer 1

这是解决办法，希望它能帮助到别人。

CKRecord to NSData to NSUserDefaults

func set_activeLinkRequest(record: CKRecord) {
    print("PublicUsers - set_activeLinkRequest \(record)")

    let data = NSKeyedArchiver.archivedDataWithRootObject(record)

    NSUserDefaults.standardUserDefaults().setObject(data, forKey: "activeLinkRequest")
    NSUserDefaults.standardUserDefaults().synchronize()
}

NSUserDefaults to NSData to CKRecord

func get_activeLinkRequest() -> CKRecord {

     let data = NSUserDefaults.standardUserDefaults().objectForKey("activeLinkRequest") as! NSData      
     let record = NSKeyedUnarchiver.unarchiveObjectWithData(data) as! CKRecord

     print("PublicUsers = get_activeLinkRequest \(record)")
     return record
}

Answer 2

Swift 5

func setActiveLinkRequest(record: CKRecord) {
    do {
        let data = try NSKeyedArchiver.archivedData(withRootObject: record, requiringSecureCoding: false)

        UserDefaults.standard.set(data, forKey: "activeLinkRequest")
    } catch {
        print(error)
    }
}

func getActiveLinkRequest() -> CKRecord? {

    guard let data = UserDefaults.standard.object(forKey: "activeLinkRequest") as? Data else {
        return nil
    }
    do {
        let record = try NSKeyedUnarchiver.unarchivedObject(ofClass: CKRecord.self, from: data)
        return record
    } catch {
        print(error)
        return nil
    }
}