Question

我需要我的responseString的值，因为它包含我将发送给下一个ViewController的数据，我已经在completionHandlers上读过，我还发现某处我的responseString数据只能存在于变量中，是否有任何变通方法因为我从没想过这会成为一个重大问题。

    func GenerateData
    var responseString = "baddata"

    let request = NSURL(string: postString)

    // NSLog("We are getting" + "this :" + postString )
    //request.HTTPMethod = "POST"
    let session = NSURLSession.sharedSession()
    let task = session.dataTaskWithURL((request)!, completionHandler: { (data: NSData?, response:NSURLResponse?,
        error: NSError?) -> Void in
        //do something
        if let httpStatus = response as? NSHTTPURLResponse where httpStatus.statusCode != 200 {           // check for http errors
            print("statusCode should be 200, but is \(httpStatus.statusCode)")
            print("response = \(response)")
        }

         responseString = NSString(data: data! , encoding: NSUTF8StringEncoding) as! String
         print("responseString = \(responseString)")
     })
    task.resume()


    return responseString

     }

Answer 1

像这样使用Session。

添加此控制器顶部

let prefs:NSUserDefaults = NSUserDefaults.standardUserDefaults()

查找

print("responseString = \(responseString)")

稍后添加

prefs.setObject(responseString, forKey: "responseString")
prefs.synchronize()

现在你的responseString准备好了。打开另一个控制器视图控制器并执行此操作。

并像这样使用

    let yourString:NSString = "\( prefs.valueForKey("responseString") as! String!)"
  self.responseText.text = yourString as String

从闭包设置变量

1 个答案: