/**
  * Retrieve a contact from the list when we already got all its information (except its
  * isFavorite)
  *
  * @param contact the contact we want to retrieve
  * @return
  */
 public IContact getContact(IContact contact) {
   for (IContact iContact : contacts) {
     if (iContact.equals(contact)) {
       return iContact;
     }
   }
   return null;
 }