JSON解析是在列表視圖中解析數據和圖像的正確方法

Question

我很困惑如何在另一個數組中使用循環Json響應數組。以下是我jsonresponse如何循環這讓在列表視圖

`{ 
"status": "ok", 

    "posts": [ 
     { 
      "id": 2498, 
      "title": "jigsaw lamp imported from thailand", 
      "content": "<p>Hi. It&#8217;s a invitation to have a look at a unique lamp shade called jigsaw lamp from thailand. Available in multi attractive colours.</p>\n", 
      "date": "2012-12-26 09:48:15", 
      "author": { 
       "name": "Tapas123456", 
          }, 
       "attachments": [ 
       { 
        "description": "", 
        "caption": "", 
        "mime_type": "image/jpeg", 
        "images": { 
        "thumbnail": { 
        "url": "http://site/wp-content/uploads/2012/12/646675-50x47.jpg", 
         } 
        } 
        ] 
       },........ 

下面是我用來循環的代碼是這樣做的正確的方式數據和圖像？

ArrayList<HashMap<String, String>> songsList = new ArrayList<HashMap<String, String>>(); 


    // Creating JSON Parser instance 
      JSONParser jParser = new JSONParser(); 

      // getting JSON string from URL 
      JSONObject json = jParser.getJSONFromUrl(URL); 
      try { 
      posts = json.getJSONArray(KEY_POSTS); 
    // looping through all song nodes <song> 
      for(int i = 0; i < posts.length(); i++){ 
       JSONObject c = posts.getJSONObject(i); 
       // Storing each json item in variable 
       String id = c.getString(KEY_ID); 
       String title = c.getString(KEY_TITLE); 
       String date = c.getString(KEY_DATE); 
       String content = c.getString(KEY_CONTENT); 

       // Phone number is agin JSON Object 
       JSONObject author = c.getJSONObject(KEY_AUTHOR); 
       String name = author.getString(KEY_NAME); 

       JSONArray attachments = json.getJSONArray(KEY_ATTACHMENTS); 

       for(int j = 0; j < attachments.length(); j++){ 
        JSONObject d = attachments.getJSONObject(j); 
        JSONObject images = d.getJSONObject(KEY_IMAGES); 

        JSONObject thumbnail = d.getJSONObject(KEY_THUMB_URL); 
        String url = thumbnail.getString(KEY_URL); 
       } 
     // creating new HashMap 
     HashMap<String, String> map = new HashMap<String, String>(); 

     // adding each child node to HashMap key => value 
     map.put(KEY_ID, id); 
     map.put(KEY_TITLE, title); 
     map.put(KEY_DATE, date); 
     map.put(KEY_NAME, name); 
     map.put(KEY_CONTENT, content); 



     // adding HashList to ArrayList 
     songsList.add(map); 

Answer 1

只需更換下面的代碼

for(int j = 0; j < attachments.length(); j++){ 
        JSONObject d = attachments.getJSONObject(j); 
        JSONObject images = d.getJSONObject(KEY_IMAGES); 

        JSONObject thumbnail = images.getJSONObject(KEY_THUMB_URL); 
        String url = thumbnail.getString(KEY_URL); 
       } 

，而不是舊的代碼。