ios - 我无法将数据发送到下一个 UIViewController

Question

我需要将此数据(id 和状态)发送到下一个 UIViewController

    {"success":true,"id":37,"status":"WAITING"}

但是在输出中发生了这种情况......

    id: nil // Nextview
    status try: nil // nextView

    ID NEXT VIEW 37 // the present view
    status NEXT VIEW WAITING // the present view

    id: Optional(37) // the next view
    status try: Optional("WAITING") // the next view

这是我获取 json 并解析的方法，然后使用方法发送到下一个 View Controller 。

     func sendOrder(jsonOrder: AnyObject){
        let request = NSMutableURLRequest(URL: NSURL(string: "http://192.168.0.21:8080/easy-coffee/get-order/")!)
        request.HTTPMethod = "POST"
        let postString = jsonOrder
        print(postString)
        request.HTTPBody = postString.dataUsingEncoding(NSUTF8StringEncoding)
        let task = NSURLSession.sharedSession().dataTaskWithRequest(request) { data, response, error in
            guard error == nil && data != nil else {
                print("error=\(error)")
                return
            }

            if let httpStatus = response as? NSHTTPURLResponse where httpStatus.statusCode != 200 {                print("statusCode should be 200, but is \(httpStatus.statusCode)")
                print("response = \(response)")
            }
            let responseString = NSString(data: data!, encoding: NSUTF8StringEncoding)!
            print(responseString)
            do{
                let OrderDict = try NSJSONSerialization.JSONObjectWithData(data!, options: NSJSONReadingOptions.AllowFragments) as! NSDictionary
                self.orderId = OrderDict["id"] as? Int
                self.orderStatus = OrderDict["status"] as? String
                self.nextView(self.orderId, orderStatus: self.orderStatus)
            }catch{

            }

        }
        task.resume()
    }

发送数据到下一个UIView Controller的方法

        func nextView(orderId: Int, orderStatus: String){
        if let waitingController = storyboard!.instantiateViewControllerWithIdentifier("waitingOrder") as? WaitingOrderViewController {
            print("ID NEXT VIEW \(orderId)")
            print("status NEXT VIEW \(orderStatus)")
            waitingController.id = orderId
            waitingController.status = orderStatus
            self.presentViewController(waitingController, animated: true, completion: nil)

        }

谢谢大家

Answer 1

将数据作为 NSDictionary 发送，在下一个 View Controller 中创建一个字典栏，并在 segue 属性中设置它。