Flutter scroll-physics which behaves like
except doesn't let you to over-scroll on top.
If you want over-scroll on bottom only when the content is longer than
max scroll extent, use
return ListView( physics: const TopBlockedBouncingScrollPhysics(), );
If you always want over-scroll on the bottom, use
TopBlockedBouncingScrollPhysics as a parent:
return ListView( physics: const AlwaysScrollableScrollPhysics( parent: TopBlockedBouncingScrollPhysics(), ), );