SliverList Explained | Flutter for Web Developers

What’s SliverList?

A sliver that places multiple box children in a linear array along the main axis.

Check the official documentation for more.

SliverList explained for Web Developers

SliverList determines its scroll offset by ‘dead reckoning’ because children outside the visible part of the sliver are not materialized, which means SliverList cannot learn their main axis extent. Instead, newly materialized children are placed adjacent to existing children. This behavior can be compared to how frameworks like React, Angular, and Vue manage rendering and state, but SliverList is specifically optimized for Flutter’s rendering pipeline.

Example Code

Here is an example of how to use SliverList:

const SliverList.builder({Key? key, required NullableIndexedWidgetBuilder itemBuilder, ChildIndexGetter? findChildIndexCallback, int? itemCount, bool addAutomaticKeepAlives = true, bool addRepaintBoundaries = true, bool addSemanticIndexes = true})

SliverList Remarks

Using SliverList can enhance performance in Flutter applications by managing child elements efficiently and preserving their state during scrolling.