可灵活自定义的flutter底部模态弹出框,代码如下:

 showModalBottomSheet(
                    shape: RoundedRectangleBorder(
                        borderRadius: BorderRadiusDirectional.circular(10)),
                    context: context,
                    builder: (_) {
                      return Container(
                        height: 400,
                        decoration: BoxDecoration(
                          color: Colors.red,
                          borderRadius: BorderRadius.only(
                              topLeft: Radius.circular(10),
                              topRight: Radius.circular(10)),
                        ),
                        child: Container(),
                      );
                    });