public class AdvertisementAdapter extends ArrayAdapter<Advertisement> {

    private Context context;
    private List<Advertisement> advertisementList;

    public AdvertisementAdapter(Context context, int resource, List<Advertisement> objects) {
        super(context, resource, objects);
        this.context = context;
        this.advertisementList = objects;
        }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {

        LayoutInflater inflater =
                (LayoutInflater) context.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);

        View view = inflater.inflate(R.layout.item_advertisement, parent, false);

        Advertisement advertisement = advertisementList.get(position);
        TextView tv = (TextView) view.findViewById(R.id.textView1);
        tv.setText(advertisement.getTitle());

        return view;
    }


}



 public class Home extends ListActivity implements OnScrollListener {
        TextView output;
        List<MyTask> tasks;
        String uri = "http://MyHost.com/x/y/z";
        int pageIndex = 1;
        int pageSize = 10;

        List<Advertisement> advertisementList;
        AdvertisementAdapter adapter;



        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);

            setContentView(R.layout.home);
            getListView().setOnScrollListener(this);
            tasks = new ArrayList<>();

            requestData(uri);

        }

        @Override
        public void onScroll(AbsListView view, int firstVisibleItem,
                int visibleItemCount, int totalItemCount) {
            // empty
        }

        @Override
        public void onScrollStateChanged(AbsListView listView, int scrollState) {

            if (scrollState == SCROLL_STATE_IDLE) {

                if (listView.getLastVisiblePosition() >= listView.getCount() - 1)
                {
                    pageIndex++;
                    getData();
                    }
                }


            private void requestData(String uri) {

                RequestPackage p = new RequestPackage();
                p.setMethod("GET");
                p.setUri(uri);
                p.setParam("pageindex", Integer.toString(pageIndex));
                p.setParam("pagesize", Integer.toString(pageSize));

                MyTask task = new MyTask();
                task.execute(p);
            }

            protected void updateDisplay() {

                if (adapter != null)
            {
                   adapter.notifyDataSetChanged();
                }else
                {
                   adapter = new AdvertisementAdapter(this,R.layout.item_advertisement,     advertisementList);
                }

            setListAdapter(adapter);

            }

            private class MyTask extends
                    AsyncTask<RequestPackage, String, List<Advertisement>> {

                @Override

                protected void onPreExecute() {
                    tasks.add(this);
                }

                @Override
                protected List<Advertisement> doInBackground(RequestPackage... params) {

                    String content = HttpManager.getData(params[0]);

                    if (advertisementList == null)
                    {
                        advertisementList = AdvertisementJSONParser.parseJson(content);
                    } else
                    {
                        advertisementList.addAll(AdvertisementJSONParser.parseJson(content));
                    }

                    return advertisementList;
                }

                @Override
                protected void onPostExecute(List<Advertisement> result) {

                    tasks.remove(this);
                    advertisementList = result;
                    updateDisplay();

                }

            }

        }

protected void updateDisplay() {
if (adapter != null)
   {
    adapter.notifyDataSetChanged();
   } else {
    adapter = new AdvertisementAdapter(this,R.layout.item_advertisement, advertisementList);
    setListAdapter(adapter);
   }
}

if (adapter != null){
   adapter.notifyDataSetChange();
}else{
   adapter = new AdvertisementAdapter(this,R.layout.item_advertisement, advertisementList);
}

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/footer_layout"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@android:color/transparent"
    android:padding="@dimen/case_list_item_padding" >

    <ProgressBar
        android:id="@+id/progressBar1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerVertical="true"
        android:layout_gravity="center_vertical" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerVertical="true"
        android:layout_marginLeft="25dp"
        android:layout_toRightOf="@+id/progressBar1"
        android:text="@string/loading_text" />

</RelativeLayout>

mView = ((LayoutInflater) this
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE)).inflate(
            R.layout.listview_footer, null, false);

mListViewCase.addFooterView(mView, null, false);

package com.example.doctorscare;

import java.util.ArrayList;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

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

import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v4.view.MenuItemCompat;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.widget.SearchView;
import android.support.v7.widget.SearchView.OnQueryTextListener;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AbsListView;
import android.widget.AbsListView.OnScrollListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.Toast;

public class CaseListingActivity extends ActionBarActivity {

    ListView mListViewCase;
    ArrayList<CaseDetails> mArrayList;
    CaseListAdapter mCaseListAdapter;
    View mView;

    CaseListingTask mCaseListingTask;

    int preLast;
    int currentPage = 1;

    public static final String URL = "xxxxxxxx";
    public static final String GET_SUBJECT_RESULT = "GetSubjectResult";
    public static final String ID = "Id";
    public static final String SUB = "Sub";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_case_listing);

        mArrayList = new ArrayList<CaseDetails>();
        mCaseListAdapter = new CaseListAdapter(this, mArrayList);

        mView = ((LayoutInflater) this
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE)).inflate(
                R.layout.listview_footer, null, false);

        mListViewCase = (ListView) findViewById(R.id.listViewCaseListing);
        // mListViewCase.addFooterView(mView);
        mListViewCase.setAdapter(mCaseListAdapter);
        mListViewCase.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
                    long arg3) {
                // TODO Auto-generated method stub
                Toast.makeText(getBaseContext(),
                        arg0.getItemAtPosition(arg2).toString(),
                        Toast.LENGTH_SHORT).show();
            }
        });

        // your AsyncTask code

        // new CaseListingTask().execute(URL + currentPage);

        executeCaseListingTask(currentPage);
    }

    public void setListViewOnScrollListener(){

        mListViewCase.setOnScrollListener(new OnScrollListener() {

            @Override
            public void onScrollStateChanged(AbsListView view, int scrollState) {
                // TODO Auto-generated method stub

            }

            @Override
            public void onScroll(AbsListView view, int firstVisibleItem,
                    int visibleItemCount, int totalItemCount) {
                // TODO Auto-generated method stub
                switch (view.getId()) {

                case R.id.listViewCaseListing:

                    final int lastItem = firstVisibleItem + visibleItemCount;
                    if (lastItem == totalItemCount) {
                        if (preLast != lastItem) {
                            // to avoid multiple calls for last item

                            preLast = lastItem;

                            if (mCaseListingTask.getStatus() == AsyncTask.Status.RUNNING) {
                                // Do Something
                            } else {
                                currentPage++;
                                // load more list items:
                                mCaseListingTask = new CaseListingTask();
                                mCaseListingTask.execute(URL + currentPage);
                            }
                        }
                    }
                    break;
                }
            }
        });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // TODO Auto-generated method stub
        getMenuInflater().inflate(R.menu.menu, menu);

        MenuItem searchItem = menu.findItem(R.id.action_search);
        SearchView searchView = (SearchView) MenuItemCompat
                .getActionView(searchItem);
        searchView.setOnQueryTextListener(new OnQueryTextListener() {

            @Override
            public boolean onQueryTextSubmit(String arg0) {
                // TODO Auto-generated method stub

                Intent mIntent = new Intent(CaseListingActivity.this,
                        SearchResultActivity.class);
                mIntent.putExtra("searchQuery", arg0);
                startActivity(mIntent);

                return false;
            }

            @Override
            public boolean onQueryTextChange(String arg0) {
                // TODO Auto-generated method stub
                return false;
            }
        });

        return super.onCreateOptionsMenu(menu);
    }

    public void executeCaseListingTask(int page) {
        mCaseListingTask = new CaseListingTask();
        try {
            mCaseListingTask.get(10000, TimeUnit.MILLISECONDS);
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (ExecutionException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (TimeoutException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();

            if (currentPage != 1)
                currentPage--;

            showAlert("TimeOut",
                    "Aww. Your internet connection is too slow. Try again ?");
        }
    }

    public void showAlert(String title, String message) {
        AlertDialog.Builder mAlertDialogBuilder = new AlertDialog.Builder(this);
        mAlertDialogBuilder.setTitle(title);
        mAlertDialogBuilder.setMessage(message);
        mAlertDialogBuilder.setPositiveButton("Yes", new OnClickListener() {

            @Override
            public void onClick(DialogInterface dialog, int which) {
                // TODO Auto-generated method stub

                dialog.dismiss();
                executeCaseListingTask(currentPage);
            }
        });
        mAlertDialogBuilder.setNegativeButton("No, thanks",
                new OnClickListener() {

                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        // TODO Auto-generated method stub

                    }
                });
        mAlertDialogBuilder.show();
    }

    public class CaseListingTask extends AsyncTask<String, Void, String> {

        ProgressDialog mProgressDialog;

        @Override
        protected String doInBackground(String... params) {
            // TODO Auto-generated method stub

            String result = "";
            for (String string : params) {
                result = new JSONParser().getJSONFromUrl(string);
            }
            return result;
        }

        /*
         * (non-Javadoc)
         *
         * @see android.os.AsyncTask#onPostExecute(java.lang.Object)
         */
        @Override
        protected void onPostExecute(String result) {
            // TODO Auto-generated method stub
            super.onPostExecute(result);

            try {
                JSONObject mJsonObject = new JSONObject(result);
                JSONArray mJsonArray = mJsonObject
                        .getJSONArray(GET_SUBJECT_RESULT);

                for (int i = 0; i < mJsonArray.length(); i++) {
                    JSONObject mSubJSONObject = mJsonArray.getJSONObject(i);
                    mArrayList.add(new CaseDetails(mSubJSONObject.getInt(ID),
                            mSubJSONObject.getString(SUB)));
                }
                mCaseListAdapter.notifyDataSetChanged();
            } catch (JSONException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

            mProgressDialog.dismiss();
        }

        /*
         * (non-Javadoc)
         *
         * @see android.os.AsyncTask#onPreExecute()
         */
        @Override
        protected void onPreExecute() {
            // TODO Auto-generated method stub
            super.onPreExecute();

            mProgressDialog = ProgressDialog.show(CaseListingActivity.this,
                    "Please Wait...", "Loading...", true, false);

            // mListViewCase.addFooterView(mView, null, false);
        }
    }
}