From cd3f352c9295c75cce44c80500634f8da7fa80fd Mon Sep 17 00:00:00 2001
From: gedoor <gekunfei@live.com>
Date: Tue, 4 May 2021 19:29:44 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BC=98=E5=8C=96?=
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---
 app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt b/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt
index 159cced9d..d8d98c9ed 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt
@@ -80,6 +80,7 @@ class ReadBookActivity : ReadBookBaseActivity(),
         }
     private val sourceEditActivity =
         registerForActivityResult(ActivityResultContracts.StartActivityForResult()) {
+            it ?: return@registerForActivityResult
             if (it.resultCode == RESULT_OK) {
                 viewModel.upBookSource {
                     upView()