Flutter在属性上使用合成. 将所需的小部件包装为可点击的小部件，以实现所需的功能.

Flutter use composition over properties. Wrap the desired widget into a clickable one to achieve what you need.

一些可点击的小部件: GestureDetector ， InkWell ，

Some clickable widgets : GestureDetector, InkWell, InkResponse.

new GestureDetector(
  onTap: ()=> ......,
  child: new Card(...),
);