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POIssue with Parsing through JSON data for error message
 

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  1. POIssue with Parsing through JSON data for error message
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    <p>I have asked a question similar to this a couple a days ago but now I have ran into a problem. In my <code>asynctask</code> below I am parsing through web service data. When my the web service returns this data to my <code>json</code> string </p> <pre><code>08-30 00:36:07.917: D/JSON String(1891): { 08-30 00:36:07.917: D/JSON String(1891): "all" : { 08-30 00:36:07.917: D/JSON String(1891): "count" : 25, 08-30 00:36:07.917: D/JSON String(1891): "questions" : [ { 08-30 00:36:07.917: D/JSON String(1891): "Id" : "20100728112033AAb4hTA", 08-30 00:36:07.917: D/JSON String(1891): "Subject" : "What is the oldest a bitch can more or less safely breed?", 08-30 00:36:07.917: D/JSON String(1891): "Content" : "Don't worry I'm not going to breed - both my bitches are getting neutered in the next year, as is my dog! Just that me and a friend were talking about it after talking to the man who gave me Misty (my border collie) who said she could still breed at 7 - I thought the oldest was 5?\n", 08-30 00:36:07.917: D/JSON String(1891): "Date" : "2010-07-28 18:20:33", 08-30 00:36:07.917: D/JSON String(1891): "Timestamp" : "1280341233", 08-30 00:36:07.917: D/JSON String(1891): "Link" : "http://answers.yahoo.com/question/?qid=20100728112033AAb4hTA", 08-30 00:36:07.917: D/JSON String(1891): "Type" : "Answered", 08-30 00:36:07.917: D/JSON String(1891): "CategoryId" : 396546021, 08-30 00:36:07.917: D/JSON String(1891): "CategoryName" : "Dogs", 08-30 00:36:07.917: D/JSON String(1891): "UserId" : "cP16Ctgxaa", 08-30 00:36:07.917: D/JSON String(1891): "UserNick" : "Kiko", 08-30 00:36:07.917: D/JSON String(1891): "UserPhotoURL" : "http://l.yimg.com/dg/users/1t1USxJpxAAEBQOGZjBMW0-5Wp_EG.medium.jpg", 08-30 00:36:07.917: D/JSON String(1891): "NumAnswers" : 8, 08-30 00:36:07.917: D/JSON String(1891): "NumComments" : 0, 08-30 00:36:07.917: D/JSON String(1891): "ChosenAnswer" : "You just \"imagined\" that ,dear...not \"thought\". &amp; your imagination is WRONG.\r\n\r\n9 or even 10,for a healthy TOP-PRODUCING bitc-h.\r\n\r\n\r\n\r\n*&amp;* bitches are SPAYED &amp; dogs are CASTRATED......big scary correct ADULT words.", 08-30 00:36:07.917: D/JSON String(1891): "ChosenAnswererId" : "clN6YITvaa", 08-30 00:36:07.917: D/JSON String(1891): "ChosenAnswererNick" : "Debunker", 08-30 00:36:07.917: D/JSON String(1891): "ChosenAnswerTimestamp" : "1280317077", 08-30 00:36:07.917: D/JSON String(1891): "ChosenAnswerAwardTimestamp" : "1280835336" 08-30 00:36:07.917: D/JSON String(1891): }, { </code></pre> <p>I parse through it and display it but when it returns this to my <code>json</code> string </p> <pre><code> 09-02 00:25:55.466: D/JSON String(882): { 09-02 00:25:55.466: D/JSON String(882): "all" : { 09-02 00:25:55.466: D/JSON String(882): "count" : 0, 09-02 00:25:55.466: D/JSON String(882): "questions" : [ ] 09-02 00:25:55.466: D/JSON String(882): } 09-02 00:25:55.466: D/JSON String(882): } </code></pre> <p>My code was suppose to display an error message and then return the user back to the main activity. When it does return <code>count 0</code> my application doesn't do anything and what I mean by that is when the <code>doInBackground</code> method is complete it just shows a blank screen because the web service hasn't returned any data. it acts like the code I have been assisted with doesn't even exist. So I was just hoping somebody could assist me with this and you guys can help figure out what is going on.</p> <pre><code> protected String doInBackground(String... args) { try { if (Integer.parseInt(json.getJSONObject("all").getString("count"))&lt;=0){return "0"; }else{ JSONArray questions = json.getJSONObject("all").getJSONArray("questions"); for(int i = 0; i &lt; questions.length(); i++) { JSONObject question = questions.getJSONObject(i); String Subject = question.getString(TAG_QUESTION_SUBJECT); String ChosenAnswer = question.getString(TAG_QUESTION_CHOSENANSWER); String Content = question.getString(TAG_QUESTION_CONTENT); HashMap&lt;String, String&gt; map = new HashMap&lt;String, String&gt;(); map.put(TAG_QUESTION_SUBJECT, Subject); map.put(TAG_QUESTION_CONTENT, Content); map.put(TAG_QUESTION_CHOSENANSWER, ChosenAnswer); questionList.add(map); } }} catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); } } catch (UnsupportedEncodingException e) { // TODO Auto-generated catch block e.printStackTrace(); } return TAG_QUESTION ; } @Override protected void onPostExecute(String file_URL) { if(TAG_COUNT == null || TAG_COUNT.equals("0")){ Toast.makeText(ListView.this, "No data found", Toast.LENGTH_SHORT).show(); finish(); }else{ if (pDialog != null &amp;&amp; pDialog.isShowing()) pDialog.dismiss(); ListAdapter adapter = new SimpleAdapter(getBaseContext(), questionList, R.layout.listelements, new String[] { TAG_QUESTION_SUBJECT }, new int[] { R.id.Subject,}); setListAdapter(adapter); }}} </code></pre>
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