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POContent view not yet created in refreshing a list fragment
 

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  1. POContent view not yet created in refreshing a list fragment
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    <p><strong>SOLUTION:</strong> It was a case of having 2 different instances of WinnersFragment which caused the lv = getListView() to be null on the refresh. </p> <p>My fragment list view works fine on load. However when I call public static void InitTask(String searchState). I get Content view not yet created at lv = getListView().</p> <p>My goal is to just refresh the listview with new json. </p> <p>I have tried calling getlistView in pre execute and I have tried using a new inittask.<br> I believe it has something to do with creating a new instance of the WinnersFragment but I am not sure. </p> <p>I found this <a href="https://stackoverflow.com/questions/12228842/content-view-not-yet-created-on-android-fragments">&quot;Content view not yet Created&quot; on Android Fragments</a> but while I understand it hitting the main thread I do not understand how to implement the solution to see if that is my issue.</p> <pre><code> public class WinnersFragment extends ListFragment { private static String URL = "http://www.xxx.com/RichardsTesting/winners.json"; Context context; Winners_List_Adapter adapter; static View v; ListView lv; ArrayList&lt;String&gt; alFName; private ProgressDialog pd; private static final String TAG_ID = "id"; private static final String TAG_FNAME = "fname"; private static final String TAG_STATE = "state"; private static final String TAG_CODE = "code"; private static final String TAG_AMOUNT = "amount"; ArrayList&lt;HashMap&lt;String, String&gt;&gt; winnersList; JSONArray winners = null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { v = inflater.inflate(R.layout.winners_list, container, false); context = getActivity().getApplicationContext(); new InitTask().execute(); return v; } @Override public void onDestroy() { lv.setAdapter(null); super.onDestroy(); } protected class InitTask extends AsyncTask&lt;Context, Integer, String&gt; { @Override protected void onPreExecute() { pd = new ProgressDialog(v.getContext()); pd.setTitle("Updating..."); pd.setMessage("Please wait."); pd.setCancelable(false); pd.setIndeterminate(true); pd.show(); } @Override protected String doInBackground(Context... params) { // Hashmap for ListView winnersList = new ArrayList&lt;HashMap&lt;String, String&gt;&gt;(); // Creating JSON Parser instance JSONParser jParser = new JSONParser(); // getting JSON string from URL String json = jParser.getJSONFromUrl(URL); try { JSONArray json1 = new JSONArray(json); // looping through All Contacts for (int i = 0; i &lt; json.length(); i++) { JSONObject c = json1.getJSONObject(i); // Storing each json item in variable String id = c.getString(TAG_ID); String fName = c.getString(TAG_FNAME); String state = c.getString(TAG_STATE); String code = c.getString(TAG_CODE); String amount = c.getString(TAG_AMOUNT); // creating new HashMap HashMap&lt;String, String&gt; map = new HashMap&lt;String, String&gt;(); // adding each child node to HashMap key =&gt; value map.put(TAG_ID, id); map.put(TAG_FNAME, fName); map.put(TAG_STATE, state); map.put(TAG_CODE, code); map.put(TAG_AMOUNT, amount); // adding HashList to ArrayList winnersList.add(map); } } catch (JSONException e) { e.printStackTrace(); } return "COMPLETE!"; } @Override protected void onProgressUpdate(Integer... values) { super.onProgressUpdate(values); } @Override protected void onPostExecute(String result) { super.onPostExecute(result); // selecting single ListView item lv = getListView(); if (pd != null) { pd.dismiss(); } setListWinners(); } } public void setListWinners() { adapter = new Winners_List_Adapter(this.getActivity(), winnersList); lv.setAdapter(adapter); } public static void InitTask(String searchState) { if (searchState !=null) { URL = URL+"?state="+searchState; WinnersFragment search = new WinnersFragment(); search.new InitTask().execute(); } } } </code></pre> <p>LOG</p> <pre><code>12-04 13:01:48.156: E/AndroidRuntime(1367): FATAL EXCEPTION: main 12-04 13:01:48.156: E/AndroidRuntime(1367): java.lang.IllegalStateException: Content view not yet created 12-04 13:01:48.156: E/AndroidRuntime(1367): at android.support.v4.app.ListFragment.ensureList(ListFragment.java:328) 12-04 13:01:48.156: E/AndroidRuntime(1367): at android.support.v4.app.ListFragment.getListView(ListFragment.java:222) 12-04 13:01:48.156: E/AndroidRuntime(1367): at com.xxx.xxx.WinnersFragment$InitTask.onPostExecute(WinnersFragment.java:123) 12-04 13:01:48.156: E/AndroidRuntime(1367): at com.xxx.xxx.WinnersFragment$InitTask.onPostExecute(WinnersFragment.java:1) 12-04 13:01:48.156: E/AndroidRuntime(1367): at android.os.AsyncTask.finish(AsyncTask.java:631) 12-04 13:01:48.156: E/AndroidRuntime(1367): at android.os.AsyncTask.access$600(AsyncTask.java:177) 12-04 13:01:48.156: E/AndroidRuntime(1367): at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:644) 12-04 13:01:48.156: E/AndroidRuntime(1367): at android.os.Handler.dispatchMessage(Handler.java:99) 12-04 13:01:48.156: E/AndroidRuntime(1367): at android.os.Looper.loop(Looper.java:137) 12-04 13:01:48.156: E/AndroidRuntime(1367): at android.app.ActivityThread.main(ActivityThread.java:4898) 12-04 13:01:48.156: E/AndroidRuntime(1367): at java.lang.reflect.Method.invokeNative(Native Method) 12-04 13:01:48.156: E/AndroidRuntime(1367): at java.lang.reflect.Method.invoke(Method.java:511) 12-04 13:01:48.156: E/AndroidRuntime(1367): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1008) 12-04 13:01:48.156: E/AndroidRuntime(1367): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:775) 12-04 13:01:48.156: E/AndroidRuntime(1367): at dalvik.system.NativeStart.main(Native Method) </code></pre> <p>xml</p> <pre><code> &lt;ListView android:id="@id/android:list" android:layout_width="match_parent" android:layout_height="0dip" android:layout_weight="1" android:drawSelectorOnTop="false" /&gt; </code></pre> <p>Calling Fragment code</p> <pre><code>public class TabsFragmentActivity extends FragmentActivity implements FragmentTabHost.OnTabChangeListener, OnClickListener { blablabla } @Override public void onClick(View v) { switch (v.getId()) { case R.id.btnDismiss: getSupportFragmentManager().popBackStackImmediate(); break; case R.id.ibSearch: LayoutInflater inflater = LayoutInflater.from(this); final View textenter = inflater.inflate(R.layout.winners_list, null); final EditText userinput = (EditText) textenter .findViewById(R.id.etSearchState); String searchState = userinput.toString(); WinnersFragment.InitTask(searchState); break; } } </code></pre>
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