Widget _buildBaseSimple(BuildContext context) { /// 获取navBar尺寸 var renderBox = navBarkey.currentContext?.findRenderObject() as RenderBox?; return TDButton( text: '基础抽屉', isBlock: true, type: TDButtonType.outline, theme: TDButtonTheme.primary, size: TDButtonSize.large, onTap: () { TDDrawer( context, visible: true, drawerTop: renderBox?.size.height, items: List.generate(30, (index) => TDDrawerItem(title: '菜单${_nums[index]}')).toList(), onItemClick: (index, item) { print('drawer item被点击,index:$index,title:${item.title}'); }, ); }, ); }