I wanted my button to shift below the content when the keyboard opens or there is no space on the screen, and when there is more space it should stick to the bottom of the screen. For that, I use a CustomScrollView but now the jittery effect is there. How can I make this transition smooth?
Here is the video of the screen:
Rendered Screen
In order to align my button on the bottom of the screen, So I used a CustomScrollView with two sliver widgets SliverToBoxAdapter and SliverFillRemaining with hasScrollBody: false and aligned the button by wrapping in a Align and set alignment: Alignment.bottomCenter.
Widget Tree
