我有一个scaffold，当我在不同的手机上测试时，它一直给我溢出错误。我在代码中只使用了mediaquery.of(context).size.height一次，我得到了溢出错误0f 40.392，这没有意义，因为我在声明高度时从未使用小数

Scaffold(
      backgroundColor: Colors.black,
      appBar: PreferredSize(
        preferredSize: const Size.fromHeight(50),
        child: AppBar(
          elevation: 0,
          iconTheme: const IconThemeData(color: Colors.blue),
          backgroundColor: mode.background1,
          actions: actionList(),
        ),
      ),
      body: Container(
        height: MediaQuery.of(context).size.height - 104,
        child: Column(
          children: [
            Container(
                //overflow error exists right here
                height: MediaQuery.of(context).size.height - 107,
                child: getWid(_selectedindex)),
            Container(
              height: 3,
              child: Row(
                children: [
                  mydivider(0),
                  mydivider(1),
                  mydivider(2),
                  mydivider(3),
                ],
              ),
            )
          ],
        ),
      ),
      bottomNavigationBar: Theme(
        data: Theme.of(context).copyWith(
            brightness: Brightness.dark,
            canvasColor: mode.canvasColor,
            primaryColor: const Color.fromARGB(255, 45, 124, 243),
            textTheme: Theme.of(context)
                .textTheme
                .copyWith(bodySmall: const TextStyle(color: Colors.grey))),
        child: SizedBox(
          height: 54,
          child: BottomNavigationBar(
              onTap: (int index) {
                setState(() {
                  _selectedindex = index;
                });
              },
              currentIndex: _selectedindex,
              type: BottomNavigationBarType.fixed,
              selectedItemColor: Colors.blue,
              unselectedItemColor: Colors.grey,
              items: const [
                BottomNavigationBarItem(
                  icon: Icon(Icons.list),
                  label: 'List',
                ),
                BottomNavigationBarItem(
                  icon: Icon(Icons.local_grocery_store),
                  label: 'Checkout',
                ),
                BottomNavigationBarItem(
                  icon: Icon(Icons.history),
                  label: 'Transactions',
                ),
                BottomNavigationBarItem(
                  icon: Icon(Icons.settings_outlined),
                  label: 'Settings',
                )
              ]),
        ),
      ),
    )

很明显，我给了所有部件的高度。我认为唯一合乎逻辑的解释是从建立在这个特定的手机上的部件错误，但我不知道如何去做。加上我已经测试了许多应用程序说手机之前。我很感激你的帮助