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POonPostExecute method never get called in AsyncTask
 

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    <p>I'm trying to fetch some data from db server. I understood I can't excute the network job on UI Main thread. the solution I found is AsyncTask. I override two method(onPostExecute, doInBackground), but after doInBackground, onPostExecute never called, and my android phone(galaxy s2) force my app to stop. where is the wrong place?</p> <pre><code>public class MainActivity extends Activity { EditText mResult; private static final String TAG = "JSON"; String Json; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mResult = (EditText)findViewById(R.id.result); Button btn = (Button)findViewById(R.id.parse); btn.setOnClickListener(new Button.OnClickListener(){ @Override public void onClick(View v){ getHtml("http://192.168.0.12/index.php"); //Json = getHtml("http://192.168.0.12/index.php"); Log.i(TAG, Integer.toString(5)); Log.i(TAG, Json); Log.i(TAG, Integer.toString(6)); try{ String Result = "member list: \n"; JSONArray ja = new JSONArray(Json); for(int j=0; j&lt;ja.length(); j++) { JSONObject order = ja.getJSONObject(j); Result +="ID : " + order.getInt("id") + " " + "number : " + order.getInt("gisoo")+ " " + "name : " + order.getString("name")+ " " + "sex : " + order.getString("sex")+ " " + "age : " + order.getInt("age")+ " " + "school : " + order.getString("university")+ " " + "phone : " + order.getString("phone")+ " " + "no : " + order.getInt("numberOfVolunteer")+ " " + "lastlogin : " + order.getString("lastLogin")+ " " + "lastactivity : " + order.getString("lastVolunteer")+ " " + "message : " + order.getString("message")+ "\n\n"; } mResult.setText(Result); } catch(JSONException e) { Toast.makeText(v.getContext(), e.getMessage(), Toast.LENGTH_LONG).show(); } } }); } private void getHtml(String url) { new ProcessHtmlTask().execute(url); } private class ProcessHtmlTask extends AsyncTask&lt;String, Void, String&gt;{ @Override protected void onPostExecute(String JSON){ Log.i(TAG, Integer.toString(8)); //I couldn't see number 8 in log. Json = JSON; return; } @Override protected String doInBackground(String... addr){ StringBuilder jsonHtml = new StringBuilder(); HttpURLConnection conn; try{ URL url = new URL(addr[0]); conn = (HttpURLConnection)url.openConnection(); if(conn != null) { conn.setConnectTimeout(10000); conn.setUseCaches(true); int n = conn.getResponseCode(); Log.i(TAG, Integer.toString(n)); if(conn.getResponseCode() == HttpURLConnection.HTTP_OK){ BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream(), "EUC-KR")); for(;;){ String line = br.readLine(); if(line == null) break; jsonHtml.append(line + "\n"); } Log.i(TAG, Integer.toString(3)); br.close(); } Log.i(TAG, Integer.toString(4)); conn.disconnect(); } } catch(Exception ex){ Log.i(TAG, ex.getMessage()); } Log.i(TAG, jsonHtml.toString()); Log.i(TAG, Integer.toString(5)); //I checked html string and number 5 showed up in log. return jsonHtml.toString(); } } </code></pre>
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    1. USHoe Hyeon Jeong
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    1. COpossible duplicate of [onPostExecute not called after completion AsyncTask](http://stackoverflow.com/questions/3606505/onpostexecute-not-called-after-completion-asynctask)
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