I have this container:
new Container( width: 500.0, padding: new EdgeInsets.fromLTRB(20.0, 40.0, 20.0, 40.0), color: Colors.green, child: new C
The simplest solution is to wrap the Container in a GestureRecognizer, but consider using an InkWell or FlatButton if you are building a Material design app. These widgets will show a visual splash response when touched.
Container
GestureRecognizer
InkWell
FlatButton