Drawer(

child: ListView(

padding: EdgeInsets.zero,

children: [

DrawerHeader(

child: Text('Drawer Header'),

decoration: BoxDecoration(

color: Colors.blue,

),

),

ListTile(

title: Text('Item 1'),

onTap: () {},

style: TextStyle(

color: Colors.black,

),

),

ListTile(

title: Text('Item 2'),

onTap: () {},

style: TextStyle(

color: Colors.black,

),

),

],

),

), 

flutter navigation drawer