adapter

 public int getCount()

    {

        return mServiceBeans == null ? 0 : mServiceBeans.size();

    }

    /**

     * Get item.

     *

     * @param position

     * @return the item according to the position.

     */

    public Object getItem(int position)

    {

        return mServiceBeans == null ? null : mServiceBeans.get(position);

    }