From 3109357326c65cea12f03676252e4907f905d0dd Mon Sep 17 00:00:00 2001
From: kunfei <gekunfei@live.com>
Date: Sat, 9 Nov 2019 17:38:16 +0800
Subject: [PATCH] up

---
 app/src/main/java/io/legado/app/ui/widget/page/TextChapter.kt | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/app/src/main/java/io/legado/app/ui/widget/page/TextChapter.kt b/app/src/main/java/io/legado/app/ui/widget/page/TextChapter.kt
index 0ab136b42..b6e18a834 100644
--- a/app/src/main/java/io/legado/app/ui/widget/page/TextChapter.kt
+++ b/app/src/main/java/io/legado/app/ui/widget/page/TextChapter.kt
@@ -1,6 +1,7 @@
 package io.legado.app.ui.widget.page
 
 import android.text.SpannableStringBuilder
+import kotlin.math.min
 
 data class TextChapter(
     val position: Int,
@@ -53,7 +54,8 @@ data class TextChapter(
 
     fun getReadLength(pageIndex: Int): Int {
         var length = 0
-        for (index in 0 until pageIndex) {
+        val maxIndex = min(pageIndex, pageLines.lastIndex)
+        for (index in 0 until maxIndex) {
             length += pageLengths[index]
         }
         return length