小编J.A*_*rji的帖子

我熟悉在Android中使用AsyncTask:创建子类,在子类的实例上调用execute,在UI线程或主线程上调用onPostExecute.什么是swift中的等价物？

我有一个(大量)数据,我想用alamofire和siftyJSON发送到Table View

网页请求:

    let postEndPoint :String = "http://jsonplaceholder.typicode.com/posts/"

代码Alamofire和SwiftyJSON:

 override func viewDidLoad() {
    super.viewDidLoad()

    Alamofire.request(.GET, postEndPoint).responseJSON { response in
        // handle json
        guard response.result.error == nil else{
            print("error calling Get on /posts/1")
            print(response.result.error)
            return

        }


        if let value: AnyObject = response.result.value{

            let post = JSON(value)
           // for i in 0...post.count{
            if let title = post["data"].arrayValue as? [JSON]{
                    self.datas = title
                self.tableView.reloadData()
                print("the title is :\(title)" )
            }else{

                print("eror parsing /post/1 ")

            }

          //  }               

         }
        }

}  

代码表视图:

    func tableView(tableView: …

我经历过类似的问题,但仍然不明白为什么我的代码会抛出错误.

let posts = try NSJSONSerialization.JSONObjectWithData(data!, options:NSJSONReadingOptions.MutableContainers) as?[String: AnyObject]
                print(posts)

                for post in posts! {
                    var postObject:Post?
                    if let id = post["ID"] as? Int , let name = post["Country_Name"]as? String{ //Type '(String, AnyObject)' has no subscript members
                        postObject = Post(ID: id, Name: name)
                        self.CountryId.append(id)
                    }
                    self.CountrySelected.append(postObject!)

json数据:

[
  {
    "$id": "1",
    "ID": 1,
    "Country_Name": "sample string 2"
  },
  {
    "$ref": "1"
  }
]

当我使用[[[String:AnyObject]]时

错误: Error Domain=NSCocoaErrorDomain Code=3840 "JSON text did not start with array or object and option to …