From 734d2a22feef3e5ab8dfcc4ef817aa0c1dea775c Mon Sep 17 00:00:00 2001
From: Chintan Patel <48344023+chihempat@users.noreply.github.com>
Date: Mon, 2 Nov 2020 15:23:02 +0530
Subject: [PATCH] AdoptAWidget: SliverWithKeepAliveWidget (#69470) (#69557)

---
 packages/flutter/lib/src/widgets/sliver.dart | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/packages/flutter/lib/src/widgets/sliver.dart b/packages/flutter/lib/src/widgets/sliver.dart
index e0884b5ee4..2b3bfa3b39 100644
--- a/packages/flutter/lib/src/widgets/sliver.dart
+++ b/packages/flutter/lib/src/widgets/sliver.dart
@@ -746,6 +746,15 @@ class SliverChildListDelegate extends SliverChildDelegate {
 }
 
 /// A base class for sliver that have [KeepAlive] children.
+///
+/// See also:
+///
+/// * [KeepAlive], which marks whether its chlild widget should be kept alive.
+/// * [SliverChildBuilderDelegate] and [SliverChildListDelegate], slivers
+///    which make usr of the keep alive functionality through the
+///    `addAutomaticKeepAlives` property.
+/// * [SliverGrid] and [SliverList], two sliver widgets that are commonly
+///    wrapped with [KeepAlive] widgets to preserve their sliver child subtrees.
 abstract class SliverWithKeepAliveWidget extends RenderObjectWidget {
   /// Initializes fields for subclasses.
   const SliverWithKeepAliveWidget({