// 默认top为10，点击后修改为100，此时方块会向下移动
padding: EdgeInsets.fromLTRB(left, top, right, bottom),

class _MyHomePageState extends State<MyHomePage> {bool flag = true;@overrideWidget build(BuildContext context) {return Scaffold(appBar: AppBar(title: const Text('标题'),),body: AnimatedPadding(curve: Curves.easeIn, // 动画属性duration: Duration(milliseconds: 500),// 默认padding: EdgeInsets.fromLTRB(10, flag ?10 : 100, 0, 0),child: Container(width: 100,height: 100,color: Colors.red,),),floatingActionButton: FloatingActionButton(onPressed: (){flag = !flag;setState(() {});},child: const Icon(Icons.add),),);}
}