public class CustomAdapter extends ArrayAdapter<String> {

    Cursor c;
    String TAG = "CustomAdapter";
    private Context context = null;
    ArrayList<String> elements = null;
    private ArrayList<String> data = null;

    public static String contactName;
    public static int count = 0;

    private ArrayList<Boolean> itemChecked = null;
    public static List<String> messages;
    public static List<String> contactID;

    String body;
    String phoneNumber;

    public CustomAdapter(Context context, int type, ArrayList<String> elements) {
        super(context, type, elements);

        data = elements;
        this.elements = elements;
        this.context = context;
    }

    // THIS IS SIMPLY A CLASS VIEW WILL HOLD DIFFERENT VIEWS OF YOUR ROW.
    static class ViewHolder {
        public ImageView photo;
        public TextView contact;
    }

    @Override
    public View getView(final int position, View convertView, ViewGroup parent) {
        View rowView = convertView;
        final ViewHolder holder;

        if (rowView == null) {
            LayoutInflater inflater = (LayoutInflater) context
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);

            // HERE I AM INFLATING LISTVIEW LAYOUT.
            rowView = inflater.inflate(R.layout.contact_entry, null, false);
            holder = new ViewHolder();
            holder.photo = (ImageView) rowView.findViewById(R.id.iv_contactPic);
            holder.contact = (TextView) rowView
                    .findViewById(R.id.contactEntryText);
            rowView.setTag(holder);

            // RETRIEVE LATEST CONTACTS WHO SENT SMS (for visual)
            contactID = new ArrayList<String>();
            contactID = elements;

            String folder = "content://sms/inbox/";
            Uri mSmsQueryUri = Uri.parse(folder);
            contactID = new ArrayList<String>();

            try {
                c = context.getContentResolver().query(
                        mSmsQueryUri,
                        new String[] { "_id", "thread_id", "address", "date",
                                "body" }, null, null, null);
                if (c == null) {
                    Log.i(TAG, "cursor is null. uri: " + mSmsQueryUri);
                }

                c.moveToFirst();
                while (c.moveToNext()) {
                    phoneNumber = c.getString(0);
                    contactID.add(phoneNumber);
                }

            } catch (Exception e) {
                // Log.e(TAG, e.getMessage());
            } finally {
                c.close();
            }

        } else {
            holder = (ViewHolder) rowView.getTag();
        }

        if (holder != null) {

            // bind the data to the row views
            holder.contact.setText(data.get(position));
            holder.photo.setImageBitmap(getByteContactPhoto(contactID
                    .get(position)));

        // SHOW CONTACT PHOTO IF IT EXISTS. IF NOT, DEFAULT (***NOT WORKING***)
        Long l = Long.parseLong(contactID.get(position));
            contactPhoto = loadContactPhoto(context.getContentResolver(), l);
            if(contactPhoto == null){
                holder.photo.setImageResource(R.drawable.ic_intel);
            } else{
                holder.photo.setImageBitmap(contactPhoto);
            }

        return rowView;
    } // end if

        // GET CONTACT PHOTO
    private static Bitmap loadContactPhoto(ContentResolver cr, long  id) {
    Uri uri = ContentUris.withAppendedId(ContactsContract.Contacts.CONTENT_URI, id);
    InputStream input = ContactsContract.Contacts.openContactPhotoInputStream(cr, uri);
    if (input == null) {
        return null;
    }
    return BitmapFactory.decodeStream(input);
}


} // end class