diff --git a/app/src/main/java/io/legado/app/ui/book/read/ReadBookBaseActivity.kt b/app/src/main/java/io/legado/app/ui/book/read/ReadBookBaseActivity.kt
index 681435e22..339a535cd 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/ReadBookBaseActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/ReadBookBaseActivity.kt
@@ -43,6 +43,9 @@ import kotlinx.android.synthetic.main.view_read_menu.*
 import org.jetbrains.anko.sdk27.listeners.onClick
 import org.jetbrains.anko.startActivityForResult
 
+/**
+ * 阅读界面
+ */
 abstract class ReadBookBaseActivity :
     VMBaseActivity<ReadBookViewModel>(R.layout.activity_book_read) {