Listview adapter

public class ReceiptAdapter extends BaseAdapter implements Filterable {

   private final Activity context;
   public ReceiptAdapter(Activity context) {

      this.context = context;

   }

   class ViewHolder {
      protected TextView number;
      protected TextView name;
      protected ImageButton imageButton;
   }

   @Override
   public View getView(final int position, View convertView,
         ViewGroup parent) {
      View view = null;
      try {
         if (convertView == null) {

            LayoutInflater inflator = context.getLayoutInflater();
            view = inflator.inflate(R.layout.receipt_item, null);
            final ViewHolder viewHolder = new ViewHolder();
            viewHolder.number = (TextView) view
                  .findViewById(R.id.tvnumber);

            viewHolder.name = (TextView) view.findViewById(R.id.tvname);

            viewHolder.imageButton = (ImageButton) view
                  .findViewById(R.id.delete_item);

            view.setTag(viewHolder);

         } else {
            view = convertView;

         }
         ViewHolder holder = (ViewHolder) view.getTag();

         

         holder.name.setText(mContactList.get(position).getName());
      } catch (Exception e) {
         // TODO: handle exception         e.printStackTrace();
      }
      return view;
   }

   @Override
   public int getCount() {
      // TODO Auto-generated method stub      return mContactList.size();
   }

   @Override
   public Object getItem(int position) {
      // TODO Auto-generated method stub      return position;
   }

   @Override
   public long getItemId(int position) {
      // TODO Auto-generated method stub      return position;
   }

}