flutter - flutter 抽屉:删除空白区域

Question

我在抽屉里装了一个粘头。但是现在我在 header 和第一个ListTile项之间有一个空格。
如何删除此空间/将项目设置在标题的末尾？

谢谢你的帮助!
(我必须删除一些ListTiles，因为它对于stackoverflow来说是很多代码)

drawer: Drawer(
  child: Column(
      children: [
        Expanded(
          flex: 1,
          child: Container(
            width: MediaQuery.of(context).size.width * 0.85,
            child: DrawerHeader(
          decoration: BoxDecoration(
          gradient: LinearGradient(
          begin: Alignment.topRight,
          end: Alignment.bottomLeft,
          colors: [Colors.blue, Colors.red])
        ),
        child: Center (child:  Text('Title', style: TextStyle(color: Colors.white, fontWeight: FontWeight.w700, fontSize: 30.0)),),

            ),
          ),
        ),
        Expanded(
          flex: 2,
          child: ListView(children: [
           ListTile(
        leading: Icon(Icons.wb_sunny),
        title: Text('Menu 1'),
        trailing: Icon(Icons.keyboard_arrow_right),
        onTap: () {print("Hallo");},
        ),
        Divider(height: 1, thickness: 0.5, color: Colors.grey,),
        ListTile(
        leading: Icon(Icons.wb_sunny),
        title: Text('Menu 2'),
        trailing: Icon(Icons.keyboard_arrow_right),
        onTap: () {print("Hallo");},
        ),
        Divider(height: 1, thickness: 0.5, color: Colors.grey,),
        ListTile(
        leading: Icon(Icons.wb_sunny),
        title: Text('Menu 3'),
        trailing: Icon(Icons.keyboard_arrow_right),
        onTap: () {print("Hallo");},
        ),
        Divider(height: 1, thickness: 0.5, color: Colors.grey,),
          ]),
        )
      ],
    ),
    ),        

Answer 1

ListView具有默认的填充。
将listview的padding属性设置为0，空格消失了:

drawer: Drawer(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.start,
          children: [
            Expanded(
              flex: 1,
              child: Container(
                width: MediaQuery.of(context).size.width * 0.85,
                child: DrawerHeader(
                  decoration: BoxDecoration(
                      gradient: LinearGradient(
                          begin: Alignment.topRight,
                          end: Alignment.bottomLeft,
                          colors: [Colors.blue, Colors.red])),
                  child: Center(
                    child: Text('Title',
                        style: TextStyle(
                            color: Colors.white,
                            fontWeight: FontWeight.w700,
                            fontSize: 30.0)),
                  ),
                ),
              ),
            ),
            Expanded(
              flex: 2,
              child: ListView(
                children: [
                  ListTile(
                    leading: Icon(Icons.wb_sunny),
                    title: Text('Menu 1'),
                    trailing: Icon(Icons.keyboard_arrow_right),
                    onTap: () {
                      print("Hallo");
                    },
                  ),
                  Divider(
                    height: 1,
                    thickness: 0.5,
                    color: Colors.grey,
                  ),
                  ListTile(
                    leading: Icon(Icons.wb_sunny),
                    title: Text('Menu 2'),
                    trailing: Icon(Icons.keyboard_arrow_right),
                    onTap: () {
                      print("Hallo");
                    },
                  ),
                  Divider(
                    height: 1,
                    thickness: 0.5,
                    color: Colors.grey,
                  ),
                  ListTile(
                    leading: Icon(Icons.wb_sunny),
                    title: Text('Menu 3'),
                    trailing: Icon(Icons.keyboard_arrow_right),
                    onTap: () {
                      print("Hallo");
                    },
                  ),
                  Divider(
                    height: 1,
                    thickness: 0.5,
                    color: Colors.grey,
                  ),
                ],
                padding: EdgeInsets.only(top: 0),
              ),
            )
          ],
        ),
      ),