hints设置一个 不显示,圆角设置了所有但是左上角的没有圆角

[CoderWeiLee]

FSearch(
                  corner: FSearchCorner(
                      leftTopCorner: 18,
                      leftBottomCorner: 18,
                      rightTopCorner: 18,
                      rightBottomCorner: 18),
                  cornerStyle: FSearchCornerStyle.round,
                  strokeColor: Colors.blue,
                  center: true,
                  hints: ["请输入讲师姓名搜索"],
                  // hintPrefix: Icon(Icons.search),
                  width: width - 80,
                  height: 36,
                  backgroundColor: ColorUtil.fromHex("#F4F5F6"),
                  hintStyle: TextStyle(fontSize: 14),
                )