swift - Xcode Swift 在 tableView 中显示来自 CloudKit 的数据

Question

希望有人能帮助我。我试图在带有原型(prototype)单元格的 UITableview 中显示来自 CloudKit 的数据(privateData)，但我的代码确实显示了我存储在 CloudKit 中的数据。存储数据没问题。

我的代码是:

var arrayname = [CKRecord]()
var arraydate = [CKRecord]()

let privateDB = CKContainer.defaultContainer().privateCloudDatabase
let cloudContainer = (CKContainer.defaultContainer().addOperation)

func loadData() {

    arrayname = [CKRecord]()

    let publicData = CKContainer.defaultContainer().publicCloudDatabase
    let query = CKQuery(recordType: "Notes", predicate: NSPredicate(format: "TRUEPREDICATE", argumentArray: nil))
    query.sortDescriptors = [NSSortDescriptor(key: "name", ascending: false)]
    publicData.performQuery(query, inZoneWithID: nil) { (results:[CKRecord]?, error:NSError?) -> Void in
        if let arrayName = results {
            self.arrayname = arrayName
            dispatch_async(dispatch_get_main_queue(), { () -> Void in
                self.tableView.reloadData()
            })
        }
    }   
}

func numberOfSectionsInTableView(tableView: UITableView) -> Int {
    return 1
}

func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    return arrayname.count
}

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as! MainViewCell

    if arrayname.count == 0 {
        return cell
    }

    let name = arrayname[indexPath.row]

    if let nameContent = name["name"] as? String {
        cell.nameLabel?.text = nameContent
    }


    let date = arrayname[indexPath.row]

    if let dateContent = date["date_end"] as? String {
        cell.nameLabel?.text = dateContent
    }

    return cell
}

Answer 1

让它工作 :-) ......首先我必须为我的对象创建一个数组:

var arrayName: Array<CKRecord> = []

然后我查询数据:

 func loadData() {

    let container = CKContainer.defaultContainer()
    let privateDatabase = container.privateCloudDatabase
    let predicate = NSPredicate(value: true)

    let query = CKQuery(recordType: "Notes", predicate: predicate)

    privateDatabase.performQuery(query, inZoneWithID: nil) { (results, error) -> Void in
        if error != nil {
            print(error)
        }
        else {
            print(results)

            for result in results! {
                self.arrayName.append(result)
            }

            NSOperationQueue.mainQueue().addOperationWithBlock({ () -> Void in
                self.tableView.reloadData()
                self.tableView.hidden = false
            })
        }
    }
}

然后我在我的表格 View 中显示数据:

 func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as! MainViewCell

    let noteRecord: CKRecord = arrayName[indexPath.row]

    cell.nameLabel?.text = noteRecord.valueForKey("name") as? String
    cell.dateLabel?.text = noteRecord.valueForKey("date_end") as? String

    return cell
}