setListAdapter不能在Android中使用Sherlock Fragment

Question

我做了一个列表视图来显示来自url的解析的JSON数据！相同的代码工作正常没有片段，但与片段setListAdapter不工作！我也尝试过getActivity（）。setListAdapter！请检查我的代码！

public class Uploads extends SherlockFragment { 

    // Progress Dialog 
    private ProgressDialog pDialog; 

    // Creating JSON Parser object 
    JSONParser jsonParser = new JSONParser(); 

    ArrayList<HashMap<String, String>> uploadsList; 

    // products JSONArray 
    JSONArray uploads = null; 

    // Inbox JSON url 
    private static final String UPLOADS_URL = "http://my_url"; 

    // ALL JSON node names 
    private static final String TAG_UPLOADS = "uploads"; 
    private static final String TAG_ID = "id"; 
    private static final String TAG_NAME = "name"; 
    private static final String TAG_DATE = "date"; 

    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
      Bundle savedInstanceState) { 
     View rootView = inflater.inflate(R.layout.fragmenttab2, container, 
       false); 


     // Hashmap for ListView 
     uploadsList = new ArrayList<HashMap<String, String>>(); 

     // Loading INBOX in Background Thread 
     new LoadInbox().execute(); 

     return rootView; 
    } 

    /** 
    * Background Async Task to Load all INBOX messages by making HTTP Request 
    * */ 
    class LoadInbox extends AsyncTask<String, String, String> { 

     /** 
     * Before starting background thread Show Progress Dialog 
     * */ 
     @Override 
     protected void onPreExecute() { 
      super.onPreExecute(); 
      pDialog = new ProgressDialog(getActivity()); 
      pDialog.setMessage("Loading Content..."); 
      pDialog.setIndeterminate(false); 
      pDialog.setCancelable(false); 
      pDialog.show(); 
     } 

     /** 
     * getting Inbox JSON 
     * */ 
     protected String doInBackground(String... args) { 
      // Building Parameters 
      List<NameValuePair> params = new ArrayList<NameValuePair>(); 

      // getting JSON string from URL 
      JSONObject json = jsonParser.makeHttpRequest(UPLOADS_URL, "GET", 
        params); 

      // Check your log cat for JSON reponse 
      Log.d("Inbox JSON: ", json.toString()); 

      try { 
       uploads = json.getJSONArray(TAG_UPLOADS); 
       for (int i = 0; i < uploads.length(); i++) { 
        JSONObject c = uploads.getJSONObject(i); 

        // Storing each json item in variable 
        String id = c.getString(TAG_ID); 
        String name = c.getString(TAG_NAME); 
        String date = c.getString(TAG_DATE); 

        // creating new HashMap 
        HashMap<String, String> map = new HashMap<String, String>(); 

        // adding each child node to HashMap key => value 
        map.put(TAG_ID, id); 
        map.put(TAG_NAME, name); 
        map.put(TAG_DATE, "Date: " + date); 

        // adding HashList to ArrayList 
        uploadsList.add(map); 
       } 

      } catch (JSONException e) { 
       e.printStackTrace(); 
      } 

      return null; 
     } 

     /** 
     * After completing background task Dismiss the progress dialog 
     * **/ 
     protected void onPostExecute(String file_url) { 
      // dismiss the dialog after getting all products 
      pDialog.dismiss(); 
      Toast.makeText(getActivity(), "Content Loaded!", Toast.LENGTH_LONG) 
        .show(); 
      // updating UI from Background Thread 
      getActivity().runOnUiThread(new Runnable() { 
       public void run() { 
        /** 
        * Updating parsed JSON data into ListView 
        * */ 
        ListAdapter adapter = new SimpleAdapter(getActivity(), 
          uploadsList, R.layout.list_items, new String[] { 
            TAG_NAME, TAG_DATE }, new int[] { 
            R.id.tvUploadTitle, R.id.tvUploadDate }); 
        // updating listview 
        setListAdapter(adapter); 
       } 
      }); 

     } 

    } 

} 

Answer 1

您需要更改

public class Uploads extends SherlockFragment 

要

public class Uploads extends SherlockListFragment 

或者你需要有一个列表视图中R.layout.fragmenttab2初始化，然后将适配器列表视图。