Handling dynamic hight changes (Re-Sizing) using snapList and SliverPersistentHeader

[PavieOlivier]

Hello Sir
I have been trying to use your package for a while now and I am not able to Re-size your widget dynamically
(actually i can, but the current snapped object goes off the view) and I am not able to maintain the current object in view(it goes off left).
HERE is a link to a small video showcasing the issue :
and here is the code of the SliverPersistentHeaderDelegate I attempted to do :
CodePile code.
I also mailed you on your email ID
Ps: SizeConfig is nothing more than just
((MeDiaQuery.of(context).size.[widthORheight])/100) = percentage of the screen in blocs