I'm trying to implement listView dynamic loading, so at Launch i execute an AsyncTask, and then OnScrollListener i call an other asynctask to load more views. But i'm getting an execption.
Here is my code:
public class HomeFragment extends Fragment {
private ListView lv;
private FeedListAdapter adapter;
private List<Reclamation> data;
ProgressDialog pDialog;
View loadMoreView;
// Flag for current page
int current_page = 1;
private String URL = Const.GET_FEEDS_URL + "/?page=1";
public HomeFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.home_fragment, container,
false);
setHasOptionsMenu(true);
lv = (ListView) rootView.findViewById(R.id.list_of_feed);
data = new ArrayList<Reclamation>();
new getFeedsTask().execute();
loadMoreView = ((LayoutInflater) getActivity().getSystemService(
Context.LAYOUT_INFLATER_SERVICE)).inflate(R.layout.loadmore,
null, false);
lv.addFooterView(loadMoreView);
adapter = new FeedListAdapter(getActivity(), data);
lv.setOnScrollListener(new OnScrollListener() {
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
new loadMoreListView().execute();
}
@Override
public void onScroll(AbsListView view, int firstVisibleItem,
int visibleItemCount, int totalItemCount) {
}
});
return rootView;
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.home_fragment, menu);
super.onCreateOptionsMenu(menu, inflater);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
Fragment fragment = null;
// Handle action bar actions click
switch (item.getItemId()) {
case R.id.create_new_delay:
fragment = new ReportDelayFragment();
if (fragment != null) {
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.frame_container, fragment).commit();
}
default:
return super.onOptionsItemSelected(item);
}
}
private class getFeedsTask extends AsyncTask<Void, Void, Void> {
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(getActivity());
pDialog.setMessage("Veuillez patienter!!");
pDialog.setIndeterminate(false);
pDialog.setCancelable(false);
pDialog.show();
}
@Override
protected Void doInBackground(Void... params) {
UserFunctions userFunction = new UserFunctions();
JSONObject json = userFunction.getFeeds(URL);
try {
if (json != null) {
JSONArray feeds = json.getJSONArray("feed");
for (int i = 0; i < feeds.length(); i++) {
JSONObject feedObj = (JSONObject) feeds.get(i);
//adding items
data.add(reclamation);
}
//adapter.notifyDataSetChanged();
} else {
if (BuildConfig.DEBUG) {
Log.e("JSON Data",
"Didn't receive any data from server!");
}
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(Void result) {
pDialog.hide();
lv.setAdapter(adapter);
super.onPostExecute(result);
}
}
private class loadMoreListView extends AsyncTask<Void, Void, Void> {
@Override
protected Void doInBackground(Void... params) {
getActivity().runOnUiThread(new Runnable() {
public void run() {
// increment current page
current_page += 1;
// Next page request
URL = Const.GET_FEEDS_URL + "/?page=" + current_page;
UserFunctions userFunction = new UserFunctions();
JSONObject json = userFunction.getFeeds(URL);
try {
if (json != null) {
JSONArray feeds = json.getJSONArray("feed");
for (int i = 0; i < feeds.length(); i++) {
JSONObject feedObj = (JSONObject) feeds.get(i);
//adding items
data.add(reclamation);
}
} else {
if (BuildConfig.DEBUG) {
Log.e("JSON Data",
"Didn't receive any data from server!");
}
}
} catch (JSONException e) {
e.printStackTrace();
}
// get listview current position - used to maintain scroll
// position
int currentPosition = lv.getFirstVisiblePosition();
adapter = new FeedListAdapter(getActivity(), data);
lv.setAdapter(adapter);
// Setting new scroll position
lv.setSelectionFromTop(currentPosition + 1, 0);
}
});
return null;
}
}
}
onScrollListner i'm gettiong this exception:
10-15 22:45:08.267: E/AndroidRuntime(19252): FATAL EXCEPTION: main 10-15 22:45:08.267: E/AndroidRuntime(19252): Process: com.moroccotd.mtd, PID: 19252 10-15 22:45:08.267: E/AndroidRuntime(19252): android.os.NetworkOnMainThreadException 10-15 22:45:08.267: E/AndroidRuntime(19252): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1156) 10-15 22:45:08.267: E/AndroidRuntime(19252): at java.net.InetAddress.lookupHostByName(InetAddress.java:385) 10-15 22:45:08.267: E/AndroidRuntime(19252): at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236) 10-15 22:45:08.267: E/AndroidRuntime(19252): at java.net.InetAddress.getAllByName(InetAddress.java:214) 10-15 22:45:08.267: E/AndroidRuntime(19252): at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:137) 10-15 22:45:08.267: E/AndroidRuntime(19252): at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164) 10-15 22:45:08.267: E/AndroidRuntime(19252): at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119) 10-15 22:45:08.267: E/AndroidRuntime(19252): at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360) 10-15 22:45:08.267: E/AndroidRuntime(19252): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:670) 10-15 22:45:08.267: E/AndroidRuntime(19252): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:509) 10-15 22:45:08.267: E/AndroidRuntime(19252): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487) 10-15 22:45:08.267: E/AndroidRuntime(19252): at com.moroccotd.mtd.backend.JSONParser.getJSONFromUrl(JSONParser.java:47) 10-15 22:45:08.267: E/AndroidRuntime(19252): at com.moroccotd.mtd.backend.UserFunctions.getFeeds(UserFunctions.java:173) 10-15 22:45:08.267: E/AndroidRuntime(19252): at com.moroccotd.mtd.HomeFragment$loadMoreListView$1.run(HomeFragment.java:248) 10-15 22:45:08.267: E/AndroidRuntime(19252): at android.os.Handler.handleCallback(Handler.java:733) 10-15 22:45:08.267: E/AndroidRuntime(19252): at android.os.Handler.dispatchMessage(Handler.java:95) 10-15 22:45:08.267: E/AndroidRuntime(19252): at android.os.Looper.loop(Looper.java:157) 10-15 22:45:08.267: E/AndroidRuntime(19252): at android.app.ActivityThread.main(ActivityThread.java:5356) 10-15 22:45:08.267: E/AndroidRuntime(19252): at java.lang.reflect.Method.invokeNative(Native Method) 10-15 22:45:08.267: E/AndroidRuntime(19252): at java.lang.reflect.Method.invoke(Method.java:515) 10-15 22:45:08.267: E/AndroidRuntime(19252): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1265) 10-15 22:45:08.267: E/AndroidRuntime(19252): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1081) 10-15 22:45:08.267: E/AndroidRuntime(19252): at dalvik.system.NativeStart.main(Native Method)
