boolean function ( ) { return true ; }
if #overridesitemvisibility returns true , the return value of this methodwill help determine the visibility of the menuitem this actionprovider is bound to.if the menuitem 's visibility is explicitly set to false by the application , the menuitem will not be shown , even if this method returns true . 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 boolean hasSubMenu concode_elem_sep void setSubUiVisibilityListener concode_elem_sep void onActionProviderVisibilityChanged concode_elem_sep void onSubUiVisibilityChanged concode_elem_sep boolean overridesItemVisibility concode_elem_sep void subUiVisibilityChanged concode_elem_sep boolean onPerformDefaultAction concode_elem_sep void reset concode_elem_sep void setVisibilityListener concode_elem_sep void onPrepareSubMenu concode_elem_sep void refreshVisibility concode_elem_sep Context getContext