question: notify the system that the visibility of an action view 's sub-ui such as an anchored popup has changed . this will affect how other system visibility notifications occur . concode_field_sep SubUiVisibilityListener mSubUiVisibilityListener concode_field_sep View onCreateActionView concode_elem_sep void onSubUiVisibilityChanged concode_elem_sep boolean hasSubMenu concode_elem_sep boolean onPerformDefaultAction concode_elem_sep void setSubUiVisibilityListener concode_elem_sep void onPrepareSubMenu
target: void function ( boolean arg0 ) { if ( mSubUiVisibilityListener != null ) { mSubUiVisibilityListener . onSubUiVisibilityChanged ( arg0 ) ; } }