All 7 Flutter Slivers & Custom Scroll Effects questions
More in Flutter Slivers & Custom Scroll Effects
What is a sliver in Flutter, and how does using a CustomScrollView built from several individual slivers let you create a genuinely more complex, custom scrolling effect than a simple regular ListView could achieve on its own? What is SliverAppBar, and how does its expandedHeight property together with FlexibleSpaceBar let you create the popular collapsing header effect commonly seen in many modern apps? How does SliverPersistentHeader let you create a genuinely persistent, pinned section header that remains visibly fixed and stuck at the very top of the screen while its own related content continues scrolling normally underneath it? How can you properly implement infinite scrolling or pagination within a sliver based scroll view, automatically loading additional new content as a user actively scrolls further down toward the very bottom of the currently loaded list? How do you properly build a genuinely fully custom sliver by directly extending RenderSliver, for a genuinely very specific custom scroll effect not already covered by any of Flutter's own existing built in sliver widgets? What performance considerations become genuinely important when building a genuinely very complex sliver based scrolling screen containing several different sliver types together, such as multiple grids, lists, and persistent headers all combined?
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Flutter › Flutter Slivers & Custom Scroll Effects

What is the difference between SliverList and SliverGrid, and how do you actually properly combine both of them together within exactly the same single CustomScrollView?

Intermediate

Answer

SliverList displays its own individual children arranged one after another in a single continuous vertical column, while SliverGrid instead arranges its own individual children into a properly organized grid layout with a specifically configurable number of columns, and combining both of these together within exactly the same single CustomScrollView, simply by including both as separate individual items within that scroll view's own overall slivers list, lets you build a genuinely single unified continuous scrolling experience that smoothly transitions from a grid section directly into a completely separate list section, or vice versa, all without ever needing any jarring separate individual scroll containers.
CustomScrollView(
  slivers: [
    SliverGrid(delegate: gridDelegate, gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(crossAxisCount: 2)),
    SliverList(delegate: listDelegate),
  ],
)
Real-world example A shopping app displays a two column SliverGrid showing featured products immediately followed directly by a SliverList showing recently viewed items, both scrolling together seamlessly within exactly one single unified continuous scrolling experience.

Common follow-ups: How do you actually properly control the specific number of columns used within a SliverGrid?;Can you actually mix more than just two different slivers together within exactly the same single CustomScrollView?

Layout Widgets (Row Column Stack Container);Custom Widgets & Reusable Components
All 7 Flutter Slivers & Custom Scroll Effects questions