From a98cd38767ecf60f18dcddd00e918533db94ceb2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mustafa=20Ali=20Dikc=CC=A7=C4=B1nar?=
 <mustafa.dikcinar@parasut.com>
Date: Fri, 26 Jul 2024 15:36:13 +0300
Subject: [PATCH] fix: fixed group header now literally fixed to top of list

---
 lib/grouped_list.dart | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/lib/grouped_list.dart b/lib/grouped_list.dart
index 182947a..47ba033 100644
--- a/lib/grouped_list.dart
+++ b/lib/grouped_list.dart
@@ -386,7 +386,19 @@ class _GroupedListViewState<T, E> extends State<GroupedListView<T, E>> {
             initialData: _topElementIndex,
             builder: (context, snapshot) {
               if (snapshot.hasData) {
-                return _showFixedGroupHeader(snapshot.data!);
+                return ListenableBuilder(
+                  listenable: _controller,
+                  builder: (context, child) {
+                    final offset = _controller.offset;
+
+                    return Padding(
+                      padding:
+                          EdgeInsets.only(top: offset < 0 ? offset.abs() : 0),
+                      child: child,
+                    );
+                  },
+                  child: _showFixedGroupHeader(snapshot.data!),
+                );
               }
               return const SizedBox.shrink();
             }),