如何在swift 3中使用json解析子數組？

-1

在這我需要從兒童數組將獲得在下面提到的網址的元素，我需要從所有11個對象獲得兒童數組任何人都可以幫助我如何實現這個？如何在swift 3中使用json解析子數組？

let url = "http://www.json-generator.com/api/json/get/cwqUAMjKGa?indent=2" 
    var detailsArray :[[String: AnyObject]] = [] 
    var productName = [String]() 
    var childrenArray :[[String: AnyObject]] = [] 

    override func viewDidLoad() { 
     super.viewDidLoad() 
     downloadJsonWithURL() 
     // Do any additional setup after loading the view. 
    } 
    func downloadJsonWithURL() { 
     let url = NSURL(string: self.url) 
     URLSession.shared.dataTask(with: (url as URL?)!, completionHandler: {(data, response, error) -> Void in 
      if let jsonObj = try? JSONSerialization.jsonObject(with: data!, options: .allowFragments) as? NSDictionary { 
       self.detailsArray = (jsonObj!.value(forKey: "data") as? [[String: AnyObject]])! 
       print(self.detailsArray) 
       for item in self.detailsArray{ 
        if let detailDict = item as? NSDictionary { 
         if let name = detailDict.value(forKey: "name"){ 
          self.productName.append(name as! String) 
         } 

        } 
       } 

       OperationQueue.main.addOperation({ 
        print(self.productName) 
        print(self.childrenArray) 
       }) 
      } 
     }).resume() 
    }

來源

2017-07-17 Vamsi S

試試這樣：

func downloadJsonWithURL() { 
      let url = NSURL(string: self.url) 
      URLSession.shared.dataTask(with: (url as URL?)!, completionHandler: {(data, response, error) -> Void in 
       if let jsonObj = try? JSONSerialization.jsonObject(with: data!, options: .allowFragments) as? NSDictionary { 
        self.detailsArray = (jsonObj!.value(forKey: "data") as? [[String: AnyObject]])! 
        print(self.detailsArray) 
        for item in self.detailsArray{ 
         if let detailDict = item as? [String:Any] { 
          if let name = detailDict["name"] as? String { 
           self.productName.append(name as! String) 
          } 

         if let children = detailDict["children 
"] as? [Any] { 
           self.childrenArray.append(children) 
          } 

         } 
        } 

        OperationQueue.main.addOperation({ 
         print(self.productName) 
         print(self.childrenArray) 
        }) 
       } 
      }).resume() 
     }

來源

2017-07-17 07:43:14

其工作，但只得到了11個對象的孩子數組但我需要讓所有的兒童數組 –

已經更新了我的答案，是的，因爲你已經遍歷數組的循環，所以你必須追加每一個數據，否則它只會顯示你最後的數據。當你在swift中編碼時，請檢查我的更新回答 –

，不要使用NSDictionary和NSArray等所有客觀的c語法語法。使用純粹的快速語法。只是我的建議 –

迭代detailsArray和關鍵的「孩子」將數據追加到childrenArray

 for item in self.detailsArray { 
      if let detailDict = item as? [String: Any] { 
       if let child = detailDict["children"] { 
        self. childrenArray.append(child) 
       } 
      } 
     }

來源

2017-07-17 07:47:32

如何在swift 3中使用json解析子數組？

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