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enter image description here

i wanna shrink [ Description section ] when user scroll down.
like sliver appbar but reversed. i expected to find flutter widget like sliver bottombar and i disappointed. I want to Make Container() shrink when user scroll down the screen and scroll up starting position make Container() expanded as first time. How can i do this??

SILENMUS
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1 Answers1

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You could use AnimatedContainer https://flutter.dev/docs/cookbook/animation/animated-container (doc)

Also, you must use ScrollController https://api.flutter.dev/flutter/widgets/ScrollController-class.html (doc). To listen for the scroll event, and each time when a user scrolls down/up maybe in some cases left/right, you will recalculate the height of your AnimatedContainer, and set a new state.

VasilKanev
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