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 6040c3174..229e1650d 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
@@ -114,6 +114,13 @@ object ReadBook {
         }
     }
 
+    fun skipToPage(page: Int) {
+        durPageIndex = page
+        callBack?.upContent()
+        curPageChanged()
+        saveRead()
+    }
+
     fun curPageChanged() {
         callBack?.upPageProgress()
         if (BaseReadAloudService.isRun) {
@@ -140,6 +147,16 @@ object ReadBook {
         }
     }
 
+    fun durChapterPos(): Int {
+        curTextChapter?.let {
+            if (durPageIndex < it.pageSize()) {
+                return durPageIndex
+            }
+            return it.pageSize() - 1
+        }
+        return durPageIndex
+    }
+
     fun loadContent(index: Int) {
         book?.let { book ->
             if (addLoading(index)) {
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 579de5b2f..332c07219 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
@@ -296,10 +296,6 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_boo
         read_menu.runMenuIn()
     }
 
-    override fun chapterSize(): Int {
-        return ReadBook.chapterSize
-    }
-
     override val oldBook: Book?
         get() = ReadBook.book
 
@@ -307,20 +303,6 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_boo
         viewModel.changeTo(book)
     }
 
-    override fun durChapterIndex(): Int {
-        return ReadBook.durChapterIndex
-    }
-
-    override fun durChapterPos(): Int {
-        ReadBook.curTextChapter?.let {
-            if (ReadBook.durPageIndex < it.pageSize()) {
-                return ReadBook.durPageIndex
-            }
-            return it.pageSize() - 1
-        }
-        return ReadBook.durPageIndex
-    }
-
     override fun setPageIndex(pageIndex: Int) {
         ReadBook.durPageIndex = pageIndex
         ReadBook.saveRead()
@@ -355,13 +337,6 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_boo
 
     }
 
-    override fun skipToPage(page: Int) {
-        ReadBook.durPageIndex = page
-        page_view.upContent()
-        ReadBook.curPageChanged()
-        ReadBook.saveRead()
-    }
-
     override fun openReplaceRule() {
         startActivity<ReplaceRuleActivity>()
     }
diff --git a/app/src/main/java/io/legado/app/ui/book/read/ReadMenu.kt b/app/src/main/java/io/legado/app/ui/book/read/ReadMenu.kt
index 7b099a7cf..8915057da 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/ReadMenu.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/ReadMenu.kt
@@ -132,7 +132,7 @@ class ReadMenu : FrameLayout {
             }
 
             override fun onStopTrackingTouch(seekBar: SeekBar) {
-                callBack?.skipToPage(seekBar.progress)
+                ReadBook.skipToPage(seekBar.progress)
             }
         })
 
@@ -245,7 +245,6 @@ class ReadMenu : FrameLayout {
 
     interface CallBack {
         fun autoPage()
-        fun skipToPage(page: Int)
         fun openReplaceRule()
         fun openChapterList()
         fun showReadStyle()
diff --git a/app/src/main/java/io/legado/app/ui/widget/page/PageView.kt b/app/src/main/java/io/legado/app/ui/widget/page/PageView.kt
index 573bc13d7..bb6dd7f20 100644
--- a/app/src/main/java/io/legado/app/ui/widget/page/PageView.kt
+++ b/app/src/main/java/io/legado/app/ui/widget/page/PageView.kt
@@ -7,6 +7,7 @@ import android.util.AttributeSet
 import android.view.MotionEvent
 import android.widget.FrameLayout
 import io.legado.app.help.ReadBookConfig
+import io.legado.app.service.help.ReadBook
 import io.legado.app.ui.widget.page.curl.CurlView
 import io.legado.app.ui.widget.page.delegate.*
 import io.legado.app.utils.activity
@@ -113,7 +114,7 @@ class PageView(context: Context, attrs: AttributeSet) :
                     prevPage?.setContent(it.previousPage())
                     callBack?.let { callback ->
                         if (isScrollDelegate) {
-                            curPage?.scrollTo(callback.textChapter()?.getStartLine(callback.durChapterPos()))
+                            curPage?.scrollTo(callback.textChapter()?.getStartLine(ReadBook.durChapterPos()))
                         }
                     }
                 }
@@ -180,14 +181,14 @@ class PageView(context: Context, attrs: AttributeSet) :
         get() = pageDelegate is ScrollPageDelegate
 
     override val pageIndex: Int
-        get() = callBack?.durChapterPos() ?: 0
+        get() = ReadBook.durChapterPos()
 
     override fun setPageIndex(pageIndex: Int) {
         callBack?.setPageIndex(pageIndex)
     }
 
     override fun getChapterPosition(): Int {
-        return callBack?.durChapterIndex() ?: 0
+        return ReadBook.durChapterIndex
     }
 
     override fun getChapter(position: Int): TextChapter? {
@@ -207,15 +208,12 @@ class PageView(context: Context, attrs: AttributeSet) :
     }
 
     override fun hasNextChapter(): Boolean {
-        callBack?.let {
-            return it.durChapterIndex() < it.chapterSize() - 1
-        }
-        return false
+        return ReadBook.durChapterIndex < ReadBook.chapterSize - 1
     }
 
     override fun hasPrevChapter(): Boolean {
         callBack?.let {
-            return it.durChapterIndex() > 0
+            return ReadBook.durChapterIndex > 0
         }
         return false
     }
@@ -240,9 +238,6 @@ class PageView(context: Context, attrs: AttributeSet) :
     }
 
     interface CallBack {
-        fun chapterSize(): Int
-        fun durChapterIndex(): Int
-        fun durChapterPos(): Int
 
         /**
          * chapterOnDur: 0为当前页,1为下一页,-1为上一页