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Why NestedScrollView in Flutter?
If you’ve ever tried building an app like Twitter, Instagram, or YouTube in Flutter, you’ve probably encountered a common challenge:
How do you make a collapsing app bar while allowing multiple scrollable widgets to scroll seamlessly together?
The answer is NestedScrollView.
In this article, we’ll explore what NestedScrollView is, why it exists, when you should use it, and how to implement it correctly with practical examples.
What is NestedScrollView?
NestedScrollView is a Flutter widget that links the scrolling behavior of multiple scrollable widgets into a single coordinated experience.
Instead of treating each scrollable independently, it synchronizes them so the user experiences one continuous scroll.
It’s particularly useful when your screen contains:
- A collapsing
SliverAppBar TabBarTabBarView- Lists inside each tab
Without NestedScrollView, these components often fight over scroll gestures, resulting in poor user experience.
