Flutter实现抽屉效果

• 效果

  
  

• 代码

return Scaffold(
      appBar: AppBar(
        leading: Builder(
          builder: (context){
            return IconButton(
                icon:Icon( Icons.access_alarm),
                onPressed: (){
                  Scaffold.of(context).openDrawer();
                }
            );
          },
        ),
      ),
      drawer: Container(
        width: 300,
        child: Drawer(),
      ),
    );