PopupMenuButton(
  offset: Offset(100, 100),
  elevation: 5.0,
  child: _menuIcon,
  itemBuilder: (context) => [     
    PopupMenuItem(
      child: StatefulBuilder(
               builder: (_context, _setState) => 
                          CheckBoxListTile(
                             activeColor: kLeadingOrangeColor,
                             value: isShow,
                             onChanged: (value) =>
                                 _setState(() => isShow = value),
                             title: checkboxLabel('Show'),
                          ),
             ),
    ),
  ],
)