Answers for "add border radius to elevated button flutter"

rounded raisedbutton in flutter

RaisedButton(
                onPressed: () {},
                color: Colors.amber,
                shape: RoundedRectangleBorder(
                    borderRadius: BorderRadius.circular(10)),
                child: Text("Click This"),
              )

flutter rounded ElevatedButton

ElevatedButton(
  onPressed: () {},
  style: ElevatedButton.styleFrom(
  	shape: new RoundedRectangleBorder(
    	borderRadius: new BorderRadius.circular(30.0),
  	),
  ),
  child: Text(
    "Click ME!!"
  ),
)