From 696c9c002f79d33b4c2cc2a2dcb2972ce9ca2994 Mon Sep 17 00:00:00 2001
From: SpiritCroc <dev@spiritcroc.de>
Date: Wed, 25 May 2022 10:52:14 +0200
Subject: [PATCH] Disable floating headers when we cannot scroll

If recyclerView content is smaller then the recyclerView, we can already
see all headers.

Change-Id: I1b3b1506236701b75777d97a6fe759b2296f5db0
---
 .../de/spiritcroc/recyclerview/StickyHeaderItemDecoration.kt  | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/vector/src/main/java/de/spiritcroc/recyclerview/StickyHeaderItemDecoration.kt b/vector/src/main/java/de/spiritcroc/recyclerview/StickyHeaderItemDecoration.kt
index 4d7e66dbb4..32963a7541 100644
--- a/vector/src/main/java/de/spiritcroc/recyclerview/StickyHeaderItemDecoration.kt
+++ b/vector/src/main/java/de/spiritcroc/recyclerview/StickyHeaderItemDecoration.kt
@@ -52,6 +52,10 @@ abstract class StickyHeaderItemDecoration(
         if (parent.childCount == 0) {
             return
         }
+        if (!parent.canScrollVertically(1) && !parent.canScrollVertically(-1)) {
+            // No floating header needs if we cannot scroll, i.e. all headers are already visible
+            return
+        }
         val topChild = if (reverse) {
             parent.getChildAt(parent.childCount - 1) ?: return
         } else {