From ed2ab8e2c1b9b4e4475fb93393679dd2e6510cdd Mon Sep 17 00:00:00 2001
From: Horis <8674809+821938089@users.noreply.github.com>
Date: Sun, 25 Aug 2024 22:35:37 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BC=98=E5=8C=96?=
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---
 .../java/io/legado/app/ui/book/read/ReadBookViewModel.kt    | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/app/src/main/java/io/legado/app/ui/book/read/ReadBookViewModel.kt b/app/src/main/java/io/legado/app/ui/book/read/ReadBookViewModel.kt
index 61e990875564..aefd5514cebb 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/ReadBookViewModel.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/ReadBookViewModel.kt
@@ -51,6 +51,7 @@ import java.io.File
 import java.io.FileInputStream
 import java.io.FileNotFoundException
 import java.io.FileOutputStream
+import kotlin.math.max
 
 /**
  * 阅读界面数据处理
@@ -113,8 +114,9 @@ class ReadBookViewModel(application: Application) : BaseViewModel(application) {
             return
         }
         ReadBook.upMsg(null)
-        if (ReadBook.durChapterIndex > ReadBook.simulatedChapterSize - 1) {
-            ReadBook.durChapterIndex = ReadBook.simulatedChapterSize - 1
+        val maxChapterSize = max(0, ReadBook.simulatedChapterSize - 1)
+        if (ReadBook.durChapterIndex > maxChapterSize) {
+            ReadBook.durChapterIndex = maxChapterSize
         }
         if (!isSameBook) {
             ReadBook.loadContent(resetPageOffset = true)