问题
With the new ListView add two or more children.
Scroll down the list to the point where the first child is entirely off the screen.
Scroll all the way back up to the initial position. The ListView shows nothing on screen (just white empty space).
Currently I'm facing this problem after upgrading the flutter to the latest version. Please help me fixing this issue.
https://github.com/flutter/flutter/issues/8155
My error and issue is exactly same as provided in this case.
来源：https://stackoverflow.com/questions/63322644/listview-scroll-offset-issue-in-flutter