enter code here


import java.util.ArrayList;
import java.util.HashMap;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;

public class FragmentA extends Fragment {


ListView list;
TextView pm;
TextView sp;
ArrayList<HashMap<String, String>> mlist = new ArrayList<HashMap<String,String>>();
  //URL to get JSON Array
  private static String url = "http://10.0.2.2:80/json/apple.php";
  //JSON Node Names
  private static final String TAG_APPLE = "Apple";
  private static final String TAG_PHONEMODEL = "PhoneModel";
  private static final String TAG_SPECS = "specs";

  JSONArray model = null;
public FragmentA() {
    // Required empty public constructor
}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    // Inflate the layout for this fragment
    View v = inflater.inflate(R.layout.fragment_a, container, false);
    return v;
}
@Override
public void onResume() {
    // TODO Auto-generated method stub
    super.onResume();
    new mparse().execute();
}
public void apple(){

    mlist = new ArrayList<HashMap<String,String>>();
}
private class mparse extends AsyncTask<String, String, JSONObject>{

     private ProgressDialog pDialog;
    @Override
    protected void onPreExecute() {
        // TODO Auto-generated method stub
        super.onPreExecute();
        pm = (TextView)getView().findViewById(R.id.phonemodel);
        sp = (TextView)getView().findViewById(R.id.specification);

        pDialog = new ProgressDialog(getActivity());
        pDialog.setMessage("Getting Data ...");
        pDialog.setIndeterminate(false);
        pDialog.setCancelable(true);
        pDialog.show();
    }
    @Override
    protected JSONObject doInBackground(String... arg0) {
        // TODO Auto-generated method stub
        JSONParser jParser = new JSONParser();
        // Getting JSON from URL
        JSONObject json = jParser.getJSONFromUrl(url);
        return json;

    }
    @Override
    protected void onPostExecute(JSONObject json) {
        // TODO Auto-generated method stub
        pDialog.dismiss();
         try {
            // Getting JSON Array
            model = json.getJSONArray("Apple");

            for(int i = 0 ; i< model.length(); i++){

            JSONObject c = model.getJSONObject(i);

            String phonemodel = c.getString(TAG_PHONEMODEL);
            String specs = c.getString(TAG_SPECS);

            HashMap<String, String> map = new HashMap<String, String>();

            map.put(TAG_PHONEMODEL, phonemodel);
            map.put(TAG_SPECS, specs);

            mlist.add(map);

            list = (ListView)getView().findViewById(R.id.listView1);

            ListAdapter adapter = new SimpleAdapter(getActivity(), mlist, R.layout.list, new  String[] {TAG_PHONEMODEL}, new int[] {R.id.phonemodel});

            list.setAdapter(adapter);
list.setOnItemClickListener(new OnItemClickListener() {


                @Override
                public void onItemClick(AdapterView<?> arg0, View arg1,
                        int position, long arg3) {
                    // TODO Auto-generated method stub

                    getActivity().setContentView(R.layout.specification);

                    try {
                        JSONObject obj = model.getJSONObject(position);
                        String sp = (String) obj.getString(TAG_SPECS);
                        TextView s = (TextView)getView().findViewById(R.id.specification);

                        s.setText(sp);


                    } catch (JSONException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    }


                }

            });
    }
}catch(JSONException e){
    e.printStackTrace();
}
    }
}
}

12-22 18:36:35.286: I/Process(713): Sending signal. PID: 713 SIG: 9
12-22 18:36:38.366: D/gralloc_goldfish(728): Emulator without GPU emulation detected.
12-22 18:36:39.256: D/dalvikvm(728): GC_CONCURRENT freed 188K, 10% free 6001K/6663K, paused 8ms+8ms
12-22 18:36:40.695: D/AndroidRuntime(728): Shutting down VM
12-22 18:36:40.695: W/dalvikvm(728): threadid=1: thread exiting with uncaught exception     (group=0x409961f8)
12-22 18:36:40.715: E/AndroidRuntime(728): FATAL EXCEPTION: main
12-22 18:36:40.715: E/AndroidRuntime(728): java.lang.NullPointerException
12-22 18:36:40.715: E/AndroidRuntime(728):  at  com.ss6.FragmentA$mparse$1.onItemClick(FragmentA.java:132)
12-22 18:36:40.715: E/AndroidRuntime(728):  at android.widget.AdapterView.performItemClick(AdapterView.java:292)
12-22 18:36:40.715: E/AndroidRuntime(728):  at android.widget.AbsListView.performItemClick(AbsListView.java:1058)
12-22 18:36:40.715: E/AndroidRuntime(728):  at android.widget.AbsListView$PerformClick.run(AbsListView.java:2514)
12-22 18:36:40.715: E/AndroidRuntime(728):  at android.widget.AbsListView$1.run(AbsListView.java:3168)
12-22 18:36:40.715: E/AndroidRuntime(728):  at android.os.Handler.handleCallback(Handler.java:605)
12-22 18:36:40.715: E/AndroidRuntime(728):  at android.os.Handler.dispatchMessage(Handler.java:92)
12-22 18:36:40.715: E/AndroidRuntime(728):  at android.os.Looper.loop(Looper.java:137)
12-22 18:36:40.715: E/AndroidRuntime(728):  at android.app.ActivityThread.main(ActivityThread.java:4340)
12-22 18:36:40.715: E/AndroidRuntime(728):  at java.lang.reflect.Method.invokeNative(Native Method)
12-22 18:36:40.715: E/AndroidRuntime(728):  at java.lang.reflect.Method.invoke(Method.java:511)
12-22 18:36:40.715: E/AndroidRuntime(728):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
12-22 18:36:40.715: E/AndroidRuntime(728):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
12-22 18:36:40.715: E/AndroidRuntime(728):  at dalvik.system.NativeStart.main(Native Method)