How do I implement a onscroll Listener to my listview?

class LoadRestaurants extends AsyncTask<String, String, String> {

        //Show Progress Dialog
        @Override
        protected void onPreExecute() {
            super.onPreExecute();
            pDialog = new ProgressDialog(SearchAll.this);
            pDialog.setMessage("Loading All Restaurants...");
            pDialog.setIndeterminate(false);
            pDialog.setCancelable(false);
            pDialog.show();
        }

        protected String doInBackground(String... arg) {
            //building parameters
            List<NameValuePair> params = new ArrayList<NameValuePair>();

            //Getting JSON from URL
            String json = jsonParser.makeHttpRequest(URL_RESTAURANT_LIST, "GET", params);

            //Log Cat Response Check
            Log.d("Areas JSON: ", "> " + json);

            try {
                restaurants = new JSONArray(json);

                if (restaurants != null) {
                    //loop through all restaurants
                    for (int i = 0; i < restaurants.length(); i++) {
                        JSONObject c = restaurants.getJSONObject(i);

                        //Storing each json  object in the variable.
                        String id = c.getString(TAG_ID);
                        String name = c.getString(TAG_NAME);
                        String location = c.getString(TAG_LOCATION);
                        String rating = c.getString(TAG_RATING);

                        //Creating New Hashmap
                        HashMap<String, String>  map = new HashMap<String, String>();

                        //adding each child node to Hashmap key
                        map.put(TAG_ID, id);
                        map.put(TAG_NAME, name);
                        map.put(TAG_LOCATION, location);
                        map.put(TAG_RATING, rating);

                        //adding HashList to ArrayList
                        restaurant_list.add(map);
                    }

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

            return null;
        }

        protected void onPostExecute(String file_url) {

            //dismiss the dialog
            pDialog.dismiss();

            //Updating UI from the Background Thread
            runOnUiThread(new Runnable() {
                @Override
                public void run() {

                    ListAdapter adapter = new SimpleAdapter(
                            SearchAll.this, restaurant_list,
                            R.layout.listview_restaurants, new String[]{
                            TAG_ID, TAG_NAME, TAG_LOCATION, TAG_RATING}, new int[]{
                            R.id.login_id, R.id.restaurant_name, R.id.address, R.id.rating});

                    setListAdapter(adapter);
                    ListView lv = getListView();


                    lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
                        @Override
                        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

                          //  Bundle bundle = new Bundle();
                             Intent intent = new Intent(SearchAll.this, RestaurantProfile.class);
                                String loginId = ((TextView) view.findViewById(R.id.login_id)).getText().toString();

                                intent.putExtra("login_id", loginId);

                            startActivity(intent);



                        }
                    });

                }
            });


        }
    }
}