From 0623f77ed41a311aa73574c294a3e54ce5537f49 Mon Sep 17 00:00:00 2001
From: kunfei <gekunfei@live.com>
Date: Mon, 27 Feb 2023 12:23:41 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BC=98=E5=8C=96?=
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---
 .../legado/app/ui/main/bookshelf/style1/BookshelfFragment1.kt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/app/src/main/java/io/legado/app/ui/main/bookshelf/style1/BookshelfFragment1.kt b/app/src/main/java/io/legado/app/ui/main/bookshelf/style1/BookshelfFragment1.kt
index 4a420e30c..e4c73c1a7 100644
--- a/app/src/main/java/io/legado/app/ui/main/bookshelf/style1/BookshelfFragment1.kt
+++ b/app/src/main/java/io/legado/app/ui/main/bookshelf/style1/BookshelfFragment1.kt
@@ -137,8 +137,8 @@ class BookshelfFragment1 : BaseBookshelfFragment(R.layout.fragment_bookshelf),
         override fun getItemPosition(`object`: Any): Int {
             val fragment = `object` as BooksFragment
             val position = fragment.position
-            val group = bookGroups[position]
-            if (fragment.groupId != group.groupId) {
+            val group = bookGroups.getOrNull(position)
+            if (fragment.groupId != group?.groupId) {
                 return POSITION_NONE
             }
             return POSITION_UNCHANGED