diff --git a/app/src/main/java/io/legado/app/service/help/ReadBook.kt b/app/src/main/java/io/legado/app/service/help/ReadBook.kt
index 36e33cb2b..6040c3174 100644
--- a/app/src/main/java/io/legado/app/service/help/ReadBook.kt
+++ b/app/src/main/java/io/legado/app/service/help/ReadBook.kt
@@ -11,7 +11,6 @@ import io.legado.app.help.IntentDataHelp
 import io.legado.app.help.coroutine.Coroutine
 import io.legado.app.model.WebBook
 import io.legado.app.service.BaseReadAloudService
-import io.legado.app.ui.book.read.ReadBookViewModel
 import io.legado.app.ui.widget.page.ChapterProvider
 import io.legado.app.ui.widget.page.TextChapter
 import kotlinx.coroutines.*
@@ -24,7 +23,7 @@ object ReadBook {
     var book: Book? = null
     var inBookshelf = false
     var chapterSize = 0
-    var callBack: ReadBookViewModel.CallBack? = null
+    var callBack: CallBack? = null
     var durChapterIndex = 0
     var durPageIndex = 0
     var isLocalBook = true
@@ -77,7 +76,7 @@ object ReadBook {
                 }
             }
             saveRead()
-            callBack?.curChapterChanged()
+            callBack?.upView()
             curPageChanged()
             return true
         } else {
@@ -107,7 +106,7 @@ object ReadBook {
                 }
             }
             saveRead()
-            callBack?.curChapterChanged()
+            callBack?.upView()
             curPageChanged()
             return true
         } else {
@@ -226,7 +225,7 @@ object ReadBook {
                     durChapterIndex -> withContext(Main) {
                         curTextChapter = ChapterProvider.getTextChapter(chapter, c, chapterSize)
                         callBack?.upContent()
-                        callBack?.curChapterChanged()
+                        callBack?.upView()
                         curPageChanged()
                         callBack?.contentLoadFinish()
                     }
@@ -258,4 +257,11 @@ object ReadBook {
         }
     }
 
+    interface CallBack {
+        fun loadContent()
+        fun upContent(position: Int = 0)
+        fun upView()
+        fun upPageProgress()
+        fun contentLoadFinish()
+    }
 }
\ No newline at end of file
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 6a8167bb2..579de5b2f 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
@@ -55,7 +55,7 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_boo
     ReadMenu.CallBack,
     ReadAloudDialog.CallBack,
     ChangeSourceDialog.CallBack,
-    ReadBookViewModel.CallBack,
+    ReadBook.CallBack,
     ColorPickerDialogListener {
     override val viewModel: ReadBookViewModel
         get() = getViewModel(ReadBookViewModel::class.java)
@@ -274,7 +274,7 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_boo
         page_view.upContent(position)
     }
 
-    override fun curChapterChanged() {
+    override fun upView() {
         ReadBook.curTextChapter?.let {
             tv_chapter_name.text = it.title
             tv_chapter_name.visible()
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 01c73dbd5..2e6f127dc 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
@@ -200,11 +200,4 @@ class ReadBookViewModel(application: Application) : BaseViewModel(application) {
         }
     }
 
-    interface CallBack {
-        fun loadContent()
-        fun upContent(position: Int = 0)
-        fun curChapterChanged()
-        fun upPageProgress()
-        fun contentLoadFinish()
-    }
 }
\ No newline at end of file