CodingForums.com - Sending a string variable from an Activity to a Fragment of that Activity

I'm new at Android and I'm having some trouble with sending a string variable from an Activity to a Fragment of that Activity.

I've set it up using intents, but I get an error that says the Fragment can not be cast to type Activity. So I researched and found some information on FragmentManager. The examples I found showed Fragments communication with other Fragments. This is not the solution I'm looking for. I need to send a string variable to a Fragment. In the onPostExecute() method I want to sent the result to a list fragment. Do you know how to achieve this or any example that I can follow? Please help. Thanks. My code is below:

Code:



package com.leobee;



import java.io.BufferedReader;

import java.io.InputStream;

import java.io.InputStreamReader;



import org.apache.http.HttpResponse;

import org.apache.http.client.methods.HttpGet;

import org.apache.http.impl.client.DefaultHttpClient;

import org.json.JSONArray;

import org.json.JSONException;

import org.json.JSONObject;



import com.google.android.maps.MapActivity;

import android.content.Intent;

import android.os.Bundle;

import android.view.View;



import android.content.Context;

import android.location.Location;

import android.location.LocationListener;

import android.location.LocationManager;

import android.os.AsyncTask;

import android.os.Bundle;

import android.util.Log;

import android.view.View;

import android.widget.TextView;

import android.widget.Toast;



public class AsyncTasksActivity extends MapActivity {



        LocationManager locationManager;



           String stxtLat ;

           String stxtLong;

           double pLong;

           double pLat;



        @Override

        public void onCreate(Bundle savedInstanceState) {



            super.onCreate(savedInstanceState);

            setContentView(R.layout.main);



        // Acquire a reference to the system Location Manager

           locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);



           // Define a listener that responds to location updates

           LocationListener locationListener = new LocationListener() {

               public void onLocationChanged(Location location) {

                   pLong=location.getLongitude();

                   pLat=location.getLatitude();

                   stxtLat=Double.toString(pLat);

                   stxtLong=Double.toString(pLong);

                   Toast.makeText(AsyncTasksActivity.this, stxtLong, Toast.LENGTH_SHORT).show();

                   Toast.makeText(AsyncTasksActivity.this, stxtLat, Toast.LENGTH_SHORT).show();





               }



               public void onStatusChanged(String provider, int status, Bundle extras) {}



               public void onProviderEnabled(String provider) {}



               public void onProviderDisabled(String provider) {}



             };





           // Register the listener with the Location Manager to receive location updates

           locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListener);

           DownloadWebPageTask task = new DownloadWebPageTask();



           double numRand = Math.floor(Math.random()*1000);

             String userLat= stxtLat;

            String userLong= stxtLong;

            task.execute(new String[] { "http://www.leobee.com/otakufinder/scripts/geoloco.php?userLat="+userLat+"&userLong="+userLong+"&randNum="+numRand });



        }



        private class DownloadWebPageTask extends AsyncTask<String, Void, String> {

            @Override

            protected String doInBackground(String... urls) {

                String response = "";

                for (String url : urls) {

                    DefaultHttpClient client = new DefaultHttpClient();

                    //HttpGet myGet = new HttpGet("http://foo.com/someservlet?param1=foo&param2=bar");



                    HttpGet httpGet = new HttpGet(url);

                    try {

                        HttpResponse execute = client.execute(httpGet);

                        InputStream content = execute.getEntity().getContent();



                        BufferedReader buffer = new BufferedReader(

                                new InputStreamReader(content));

                        String s = "";

                        while ((s = buffer.readLine()) != null) {

                            response += s;

                        }



                    } catch (Exception e) {

                        e.printStackTrace();

                    }

                }

                return response;

            }





        @Override

        protected void onPostExecute(String result) {



                String x =result;

                    // send vars thru bundle (basket)

                Bundle basket = new Bundle();

                basket.putString("key", x);

                Intent openClass = new Intent(AsyncTasksActivity.this, ListFragment.class);

                openClass.putExtras(basket);

                startActivity(openClass);



                Log.v("values",x);



            }



        }





        @Override

        protected boolean isRouteDisplayed() {

            // TODO Auto-generated method stub

            return false;

        }

}