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POdisplay a listView using Activity(not ListActivity) and asyncTask onPostExecute() android
 

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  1. POdisplay a listView using Activity(not ListActivity) and asyncTask onPostExecute() android
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    <p>When I run my application it crashes. Actually I noticed that the problem appears when I write <code>list.setAdapter(adapter);</code> in <code>PostExecute()</code>. Can anyone help me? Thanks.</p> <p>In <code>Searchbykey</code> activity the user can choose some items from list </p> <pre><code>public class Searchbykey extends SherlockActivity { ActionBar actionbar; ListView listView; ArrayAdapter&lt;String&gt; adapter; double latitude, longitude; public static ArrayList&lt;HashMap&lt;String, String&gt;&gt; xml_results; public ProgressDialog progressDialog; Intent intentResults ; int k=0; //XML node keys static final String KEY_ENV = "environment"; // parent node static final String KEY_TITLE = "title"; static final String KEY_FEED = "feed"; static final String KEY_ID = "id"; static final String KEY_LAT = "lat"; static final String KEY_LON = "lon"; static final String KEY_DIF_LAT = "dif lat"; static final String KEY_DIF_LON = "dif lon"; static final String KEY_NAME = "name"; static final String KEY_DESC = "description"; String[] countries = new String[] { "India", "Pakistan", "Sri Lanka", "China", "Bangladesh", "Nepal", "Afghanistan", "North Korea", "South Korea", "Japan" }; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.keylist); actionbar=getSupportActionBar(); actionbar.setTitle("Search by keyword(s)"); //-------Get the location that calculate from previus acrivity. Before that activity start. Bundle extras = getIntent().getExtras(); if (extras == null) { System.out.println("None"); } //Get data via the key latitude = extras.getDouble("latitude"); longitude = extras.getDouble("longitude"); //----------I have a location service that detect the location and send a broadcast msg. So here I declare a register to listen the broadcast msg for location IntentFilter filter = new IntentFilter("xxx.yyy.intent.action.LOCATION"); this.registerReceiver(new LocationReceiver(), filter); //The checkbox for the each item is specified by the layout android.R.layout.simple_list_item_multiple_choice ArrayAdapter&lt;String&gt; adapter = new ArrayAdapter&lt;String&gt;(this, android.R.layout.simple_list_item_multiple_choice, countries); //Getting the reference to the listview object of the layout listView = (ListView) findViewById(R.id.ListView); //Setting adapter to the listview listView.setAdapter(adapter); } @Override public boolean onCreateOptionsMenu(Menu menu) { getSupportMenuInflater().inflate(R.menu.keywordmenu, menu); (menu.findItem(R.id.search)).setIcon(R.drawable.action_search); (menu.findItem(R.id.clear)).setIcon(R.drawable.abs__ic_clear); //return(true); return super.onCreateOptionsMenu(menu); } public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.search: //-----------Call new activity that appears the search result intentResults = new Intent (this, Keysearch_results.class); startActivity(intentResults); break; case R.id.clear: ClearSelections(); break; } return true; } } //-----The Keysearch_results is the activity that i want to take info from url (xml parser) and appear the result of search public class Keysearch_results extends SherlockActivity { //XML node keys static final String KEY_ENV = "environment"; // parent node static final String KEY_TITLE = "title"; static final String KEY_FEED = "feed"; static final String KEY_ID = "id"; static final String KEY_LAT = "lat"; static final String KEY_LON = "lon"; static final String KEY_DIF_LAT = "dif lat"; static final String KEY_DIF_LON = "dif lon"; static final String KEY_NAME = "name"; static final String KEY_DESC = "description"; public ProgressDialog progressDialog; public ArrayList&lt;HashMap&lt;String, String&gt;&gt; listItems; //Menu Bar ActionBar actionbar; //List ListView listView; ArrayAdapter&lt;String&gt; adapter; //User Location double latitude, longitude; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.results); //Appear action bar actionbar=getSupportActionBar(); actionbar.setTitle("Results"); //Getting the reference to the listview object of the layout listView = (ListView) findViewById(R.id.ResList); ListAdapter adapter = new SimpleAdapter(this, listItems, R.layout.result_row, new String[] { "feed", "dif lat",}, new int[] { R.id.name, R.id.dif}); new YourDownload().execute(); } private class YourDownload extends AsyncTask&lt;Void, Void, Integer&gt; { // private String Content; @Override protected Integer doInBackground(Void... params) { if(isOnline()){ listItems.clear(); int i; HashMap&lt;String, String&gt; map = null; XMLParser parser = new XMLParser(); //getting XML String xml = null ; DefaultHttpClient client = new DefaultHttpClient(); HttpGet request = new HttpGet(); try { request.setURI(new URI("http://api.cosm.com/v2/feeds.xml?&amp;key=Sov51TAorgtao6W_JuNodPN3KMqSAKxuZjFsblR3TUp4TT0g&amp;lat=35.1446170529352&amp;lon=33.3462524414062")); } catch (URISyntaxException e) { e.printStackTrace(); System.out.print("http\n"); } HttpResponse httpResponse = null; try { httpResponse = client.execute(request); } catch (ClientProtocolException e1) { e1.printStackTrace(); } catch (IOException e1) { e1.printStackTrace(); } HttpEntity httpEntity = httpResponse.getEntity(); try { xml = EntityUtils.toString(httpEntity); } catch (ParseException e1) { e1.printStackTrace(); } catch (IOException e1) { e1.printStackTrace(); } //getting DOM element Document doc = parser.getDomElement(xml); NodeList nl = doc.getElementsByTagName(KEY_ENV); //int size=nl.getLength(); // looping through all item nodes &lt;item&gt; for (i = 0; i &lt; nl.getLength(); i++) { // creating new HashMap map = new HashMap&lt;String, String&gt;(); Element e = (Element) nl.item(i); // adding each child node to HashMap key =&gt; value map.put(KEY_FEED, parser.getValue(e, KEY_FEED)); map.put(KEY_DIF_LAT, parser.getValue(e, KEY_LAT)); map.put(KEY_DIF_LON, parser.getValue(e, KEY_LON)); listItems.add(map); } } else{ Toast.makeText(Keysearch_results.this, "No connection..", Toast.LENGTH_LONG).show(); } return 1; } @Override protected void onPostExecute(Integer result) { if(result==1 &amp;&amp; listItems!=null) { listView.setAdapter(adapter); } progressDialog.dismiss(); super.onPostExecute(result); } } } </code></pre> <p>List layout:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" &gt; &lt;TextView android:id="@+id/name" android:layout_width="wrap_content" android:layout_height="wrap_content" android:padding="10dp" android:textAppearance="?android:attr/textAppearanceMedium" android:textStyle="bold" android:textSize="16sp" &gt; &lt;/TextView&gt; &lt;TextView android:id="@+id/dif" android:layout_width="wrap_content" android:layout_height="wrap_content" android:padding="10dp" android:textAppearance="?android:attr/textAppearanceMedium" android:textStyle="bold" android:textSize="16sp" &gt; &lt;/TextView&gt; &lt;TextView android:id="@+id/dd" android:layout_width="wrap_content" android:layout_height="wrap_content" android:padding="10dp" android:textAppearance="?android:attr/textAppearanceMedium" android:textStyle="bold" android:textSize="16sp" &gt; &lt;/TextView&gt; &lt;/LinearLayout&gt; </code></pre> <p>Errors:</p> <pre><code> 04-06 19:50:30.326: E/ActivityThread(795): Activity com.example.ioaaan.Searchbykey has leaked IntentReceiver com.example.ioaaan.Searchbykey$LocationReceiver@40cdb248 that was originally registered here. Are you missing a call to unregisterReceiver()? 04-06 19:50:30.326: E/ActivityThread(795): android.app.IntentReceiverLeaked: Activity com.example.ioaaan.Searchbykey has leaked IntentReceiver com.example.ioaaan.Searchbykey$LocationReceiver@40cdb248 that was originally registered here. Are you missing a call to unregisterReceiver()? 04-06 19:50:30.326: E/ActivityThread(795): at android.app.LoadedApk$ReceiverDispatcher.&lt;init&gt;(LoadedApk.java:795) 04-06 19:50:30.326: E/ActivityThread(795): at android.app.LoadedApk.getReceiverDispatcher(LoadedApk.java:596) 04-06 19:50:30.326: E/ActivityThread(795): at android.app.ContextImpl.registerReceiverInternal(ContextImpl.java:1316) 04-06 19:50:30.326: E/ActivityThread(795): at android.app.ContextImpl.registerReceiver(ContextImpl.java:1296) 04-06 19:50:30.326: E/ActivityThread(795): at android.app.ContextImpl.registerReceiver(ContextImpl.java:1290) 04-06 19:50:30.326: E/ActivityThread(795): at android.content.ContextWrapper.registerReceiver(ContextWrapper.java:423) 04-06 19:50:30.326: E/ActivityThread(795): at com.example.ioaaan.Searchbykey.onCreate(Searchbykey.java:121) 04-06 19:50:30.326: E/ActivityThread(795): at android.app.Activity.performCreate(Activity.java:5104) 04-06 19:50:30.326: E/ActivityThread(795): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080) 04-06 19:50:30.326: E/ActivityThread(795): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144) 04-06 19:50:30.326: E/ActivityThread(795): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230) 04-06 19:50:30.326: E/ActivityThread(795): at android.app.ActivityThread.access$600(ActivityThread.java:141) 04-06 19:50:30.326: E/ActivityThread(795): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234) 04-06 19:50:30.326: E/ActivityThread(795): at android.os.Handler.dispatchMessage(Handler.java:99) 04-06 19:50:30.326: E/ActivityThread(795): at android.os.Looper.loop(Looper.java:137) 04-06 19:50:30.326: E/ActivityThread(795): at android.app.ActivityThread.main(ActivityThread.java:5041) 04-06 19:50:30.326: E/ActivityThread(795): at java.lang.reflect.Method.invokeNative(Native Method) 04-06 19:50:30.326: E/ActivityThread(795): at java.lang.reflect.Method.invoke(Method.java:511) 04-06 19:50:30.326: E/ActivityThread(795): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 04-06 19:50:30.326: E/ActivityThread(795): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 04-06 19:50:30.326: E/ActivityThread(795): at dalvik.system.NativeStart.main(Native Method) </code></pre> <p>Sorry for all that errors but i am new in android application and I can not understand how to fix the errors </p>
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    1. PTQuestion
    1. USGuillaume
    1. USIoanna
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      1. POdisplay a listView using Activity(not ListActivity) and asyncTask onPostExecute() android
      1. This table or related slice is empty.
      1. VTApproveEditSuggestion
    2. VO
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      1. This table or related slice is empty.
      1. VTApproveEditSuggestion
    3. VO
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      1. POdisplay a listView using Activity(not ListActivity) and asyncTask onPostExecute() android
      1. This table or related slice is empty.
      1. VTApproveEditSuggestion
    1. COplz also add logcat results with question to get more help from us.
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      1. POdisplay a listView using Activity(not ListActivity) and asyncTask onPostExecute() android
      1. USρяσѕρєя K
    2. COYou could create a pop up dialog with the listView, is that okay?
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      1. POdisplay a listView using Activity(not ListActivity) and asyncTask onPostExecute() android
      1. USKarthik Balakrishnan
    3. COWhat kind of array list is myList? ArrayList<?>?
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      1. POdisplay a listView using Activity(not ListActivity) and asyncTask onPostExecute() android
      1. USHoan Nguyen
 

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