unregisters a listener to receive events . concode_field_sep List<RosterEventListener> listeners concode_field_sep boolean addingContact concode_elem_sep void contactUpdated concode_elem_sep void contactDeleted concode_elem_sep void rosterLoaded concode_elem_sep void contactAdded concode_elem_sep void addListener
void function ( RosterEventListener arg0 ) { listeners . remove ( arg0 ) ; }