boolean function ( ) { return false ; }
the result of this method determines whether or not #isvisible will be usedby the menuitem this actionprovider is bound to help determine its visibility . concode_field_sep String TAG concode_elem_sep SubUiVisibilityListener mSubUiVisibilityListener concode_elem_sep VisibilityListener mVisibilityListener concode_elem_sep Context mContext concode_field_sep View onCreateActionView concode_elem_sep View onCreateActionView concode_elem_sep void onSubUiVisibilityChanged concode_elem_sep boolean hasSubMenu concode_elem_sep void subUiVisibilityChanged concode_elem_sep void setSubUiVisibilityListener concode_elem_sep boolean onPerformDefaultAction concode_elem_sep void setVisibilityListener concode_elem_sep boolean isVisible concode_elem_sep void onPrepareSubMenu concode_elem_sep void refreshVisibility concode_elem_sep Context getContext concode_elem_sep void onActionProviderVisibilityChanged