this problem mainly occurs on iOS, because iOS's scrollview is elastic without Android.
personal solution is to return false, instead of blocking when determining whether to intercept pull-up events. In this way, the pull-up is still left to scrollview to handle on its own. I hope it can solve the problem, if not, it can provide an idea to help you solve the problem.

use the new version of flatlist or Scrollview
pull-up and drop-down without white space

Open the mode menu, toggle Inspector and take a look at the rendering layer. The ListView I used the other day doesn't have this problem with you

< ListView automaticallyAdjustContentInsets= {false}. / >

refer to the attribute for ios in ScrollView, the