Answers for "border radius vs border use now flutter"

flutter border radius

borderRadius: BorderRadius.all(Radius.circular(5.0))

different border radius on container flutter

Container(
              decoration: BoxDecoration(
                  color: gray,
                  borderRadius: BorderRadius.only(
                    bottomLeft: Radius.circular(20),
                    bottomRight: Radius.circular(20),
                  )),
              child: ...,
            ),