Networkonmainthreadexception On Higher Api

I am having a script force close only when i debug on higher API : 16 , But it is working fine when it come to an API : 10. Could it be my project setup problem? It is a simple re

Solution 1:

You have a NetworkOnMainThreadException which occurs on the new versions of Android (3.0+) if you try to do network operations on the main (UI) Thread (StrictMode),. Use an AsyncTask for your network operations, it's simple to set up, and operates in a logical manner (execute something in background then once you're done, publish to UI Thread).

Solution 2:

Try this, use AsyncTask method it will resolve ur problem..

protectedclassGetTaskextendsAsyncTask<Void, Void, Integer> {

protectedvoidonPreExecute() {
ProgressDialogmProgressDialog= ProgressDialog.show(MainActivity.this,
            "", "Finding cars");
}

@Overrideprotected Integer doInBackground(Void... params) {
    // TODO Auto-generated method stub//Do your stuffreturn0;
}

protectedvoidonPostExecute(Integer result) {
    super.onPostExecute(result);


    if (mProgressDialog.isShowing()) {
        mProgressDialog.dismiss();
    }


}
}

Solution 3:

In case , someone go into this situation . i decided to post my working code

publicclassgalleryextendsFragment {

    JSONArray jArray;
    Stringresult=null;
    InputStreamis=null;
    StringBuildersb=null;
    private ListView storeList;

    @Overridepublic View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        // TODO Auto-generated method stubViewmyFragmentView= inflater.inflate(R.layout.tab_frag1_layout,
                container, false);
        storeList = (ListView) inflater.inflate(R.layout.list, null);
        return myFragmentView;
    }

    @OverridepublicvoidonCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stubsuper.onCreate(savedInstanceState);

    }

    @OverridepublicvoidonActivityCreated(Bundle savedInstanceState) {
        // TODO Auto-generated method stubsuper.onActivityCreated(savedInstanceState);

        newtask().execute();

    }

    classtaskextendsAsyncTask<String, String, Void> {
        privateProgressDialogprogressDialog=newProgressDialog(getActivity());
        InputStreamis=null;
        Stringresult="";

        protectedvoidonPreExecute() {
            progressDialog.setMessage("Download data...");
            progressDialog.show();
        }

        @Overrideprotected Void doInBackground(String... params) {
            Stringurl_select="http://xxxxxxxxxxxx/android_link.php";

            HttpClienthttpClient=newDefaultHttpClient();
            HttpPosthttpPost=newHttpPost(url_select);

            ArrayList<NameValuePair> param = newArrayList<NameValuePair>();

            try {
                httpPost.setEntity(newUrlEncodedFormEntity(param));

                HttpResponsehttpResponse= httpClient.execute(httpPost);
                HttpEntityhttpEntity= httpResponse.getEntity();

                // read content
                is = httpEntity.getContent();

            } catch (Exception e) {

                Log.e("log_tag", "Error in http connection " + e.toString());
            }
            try {
                BufferedReaderbr=newBufferedReader(
                        newInputStreamReader(is));
                StringBuildersb=newStringBuilder();
                Stringline="";
                while ((line = br.readLine()) != null) {
                    sb.append(line + "\n");
                }
                is.close();
                result = sb.toString();

            } catch (Exception e) {
                // TODO: handle exception
                Log.e("log_tag", "Error converting result " + e.toString());
            }

            returnnull;

        }

        protectedvoidonPostExecute(Void v) {

            // ambil data dari Json databasetry {
                JSONArrayJarray=newJSONArray(result);
                for (inti=0; i < Jarray.length(); i++) {
                    JSONObjectJasonobject=null;
                    Jasonobject = Jarray.getJSONObject(i);

                    // get an output on the screenStringbid= Jasonobject.getString("brand_id");
                    Stringsname= Jasonobject.getString("series_name");

                }
                this.progressDialog.dismiss();

            } catch (Exception e) {
                // TODO: handle exception
                Log.e("log_tag", "Error parsing data " + e.toString());
            }
        }
    }
}