Rect argument contained a NaN value

`
StickyHeader(
          header: YyTips(
            msg: "xiangyu_gps_false".tr,
            btnTitle: "btn_go_setting".tr,
            onPressed: () {},
          ),
          content: ws)
`

当切换到其他pageview页面的时候,会出现异常Rect argument contained a NaN value

When switching to other pageview pages, an exception will appear " **Rect argument contained a NaN value** "