如何在flutter中向NavigationRail添加分隔线

Question

我需要在每个之间添加一个分隔线NavigationRailDestination。里面 NavigationRail有我们添加的目的地NavigationRailDestination。

它只接受 type 的孩子NavigationRailDestination。

我尝试以这种方式执行此操作，但这不是我想要的，有不必要的填充，我无法使用它，并且当我单击它时它会执行操作

这是我的代码：

 NavigationRail(
  backgroundColor: customTheme.card,
  leading: IconButton(
      onPressed: () => Navigator.of(context).pop(),
      icon: Icon(
        FeatherIcons.chevronLeft,
        size: 20,
        color: theme.colorScheme.onBackground,
      )),
  selectedIndex: _selectedIndex,
  onDestinationSelected: (int index) {
    setState(() {
      _selectedIndex = index;
      controller.animateToPage(index,
          duration: const Duration(milliseconds: 250),
          curve: Curves.easeInOut);
    });
  },
  labelType: NavigationRailLabelType.selected,
  /*------------- Build Tabs -------------------*/
  destinations: [
    NavigationRailDestination(
      icon: const Icon(Icons.dashboard),
      selectedIcon: const Icon(Icons.dashboard),
      label: FxText.titleSmall('Dashboard',
          fontWeight: 500, color: theme.colorScheme.primary),
    ),
    NavigationRailDestination(
      icon: Divider(color: Colors.black),
      selectedIcon: Divider(color: Colors.black),
      label: FxText.titleSmall('',
          fontWeight: 100, color: theme.colorScheme.primary),
      padding:EdgeInsets.only(top:1,left: 10,right:10,bottom: 1)
    ),

    NavigationRailDestination(
      icon: const Icon(Icons.tour),
      selectedIcon: const Icon(Icons.tour),
      label: FxText.titleSmall('Tours',
          fontWeight: 600, color: theme.colorScheme.primary),
    ),
    NavigationRailDestination(
      icon: const Icon(Icons.flight),
      selectedIcon: const Icon(Icons.flight),
      label: FxText.titleSmall('Flights',
          fontWeight: 600, color: theme.colorScheme.primary),
    ),


    NavigationRailDestination(
      icon: const Icon(Icons.hotel),
      selectedIcon: const Icon(Icons.hotel),
      label: FxText.titleSmall('Hotels',
          fontWeight: 600, color: theme.colorScheme.primary),
    ),

    NavigationRailDestination(
        icon: Divider(color: Colors.black),
        selectedIcon: Divider(color: Colors.black),
        label: FxText.titleSmall('',
            fontWeight: 100, color: theme.colorScheme.primary),
        padding:EdgeInsets.only(top:1,left: 10,right:10,bottom: 1)
    ),
    NavigationRailDestination(
      icon: const Icon(Icons.payment),
      selectedIcon: const Icon(Icons.payment),
      label: FxText.titleSmall('Payments',
          fontWeight: 600, color: theme.colorScheme.primary),
    ),
  ],
),

这是我想要得到的结果，但图标和分隔线之间没有空间：