diff --git a/app/src/main/java/io/legado/app/ui/main/bookshelf/GroupManageDialog.kt b/app/src/main/java/io/legado/app/ui/book/group/GroupManageDialog.kt
similarity index 96%
rename from app/src/main/java/io/legado/app/ui/main/bookshelf/GroupManageDialog.kt
rename to app/src/main/java/io/legado/app/ui/book/group/GroupManageDialog.kt
index 1022f4ed9..af3723e11 100644
--- a/app/src/main/java/io/legado/app/ui/main/bookshelf/GroupManageDialog.kt
+++ b/app/src/main/java/io/legado/app/ui/book/group/GroupManageDialog.kt
@@ -1,4 +1,4 @@
-package io.legado.app.ui.main.bookshelf
+package io.legado.app.ui.book.group
 
 import android.annotation.SuppressLint
 import android.content.Context
@@ -25,6 +25,7 @@ import io.legado.app.lib.dialogs.alert
 import io.legado.app.lib.dialogs.customView
 import io.legado.app.lib.dialogs.noButton
 import io.legado.app.lib.dialogs.yesButton
+import io.legado.app.ui.main.bookshelf.BookshelfViewModel
 import io.legado.app.utils.applyTint
 import io.legado.app.utils.getViewModel
 import io.legado.app.utils.requestInputMethod
@@ -77,7 +78,12 @@ class GroupManageDialog : DialogFragment(), Toolbar.OnMenuItemClickListener {
         recycler_view.adapter = adapter
         App.db.bookGroupDao().liveDataAll().observe(viewLifecycleOwner, Observer {
             val diffResult =
-                DiffUtil.calculateDiff(GroupDiffCallBack(adapter.getItems(), it))
+                DiffUtil.calculateDiff(
+                    GroupDiffCallBack(
+                        adapter.getItems(),
+                        it
+                    )
+                )
             adapter.setItems(it, false)
             diffResult.dispatchUpdatesTo(adapter)
         })
diff --git a/app/src/main/java/io/legado/app/ui/book/info/GroupSelectDialog.kt b/app/src/main/java/io/legado/app/ui/book/group/GroupSelectDialog.kt
similarity index 98%
rename from app/src/main/java/io/legado/app/ui/book/info/GroupSelectDialog.kt
rename to app/src/main/java/io/legado/app/ui/book/group/GroupSelectDialog.kt
index 517f9dc9d..6dbdbd17b 100644
--- a/app/src/main/java/io/legado/app/ui/book/info/GroupSelectDialog.kt
+++ b/app/src/main/java/io/legado/app/ui/book/group/GroupSelectDialog.kt
@@ -1,4 +1,4 @@
-package io.legado.app.ui.book.info
+package io.legado.app.ui.book.group
 
 import android.annotation.SuppressLint
 import android.content.Context
@@ -44,7 +44,10 @@ class GroupSelectDialog : DialogFragment(), Toolbar.OnMenuItemClickListener {
 
         fun show(manager: FragmentManager) {
             val fragment = GroupSelectDialog()
-            fragment.show(manager, tag)
+            fragment.show(
+                manager,
+                tag
+            )
         }
     }
 
diff --git a/app/src/main/java/io/legado/app/ui/book/info/BookInfoActivity.kt b/app/src/main/java/io/legado/app/ui/book/info/BookInfoActivity.kt
index 6b0e5433f..cf86b2f04 100644
--- a/app/src/main/java/io/legado/app/ui/book/info/BookInfoActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/info/BookInfoActivity.kt
@@ -21,6 +21,7 @@ import io.legado.app.help.BlurTransformation
 import io.legado.app.help.ImageLoader
 import io.legado.app.help.IntentDataHelp
 import io.legado.app.ui.audio.AudioPlayActivity
+import io.legado.app.ui.book.group.GroupSelectDialog
 import io.legado.app.ui.book.info.edit.BookInfoEditActivity
 import io.legado.app.ui.book.read.ReadBookActivity
 import io.legado.app.ui.book.source.edit.BookSourceEditActivity
diff --git a/app/src/main/java/io/legado/app/ui/main/bookshelf/BookshelfFragment.kt b/app/src/main/java/io/legado/app/ui/main/bookshelf/BookshelfFragment.kt
index e3c68dcaa..c51bd46e2 100644
--- a/app/src/main/java/io/legado/app/ui/main/bookshelf/BookshelfFragment.kt
+++ b/app/src/main/java/io/legado/app/ui/main/bookshelf/BookshelfFragment.kt
@@ -22,6 +22,7 @@ import io.legado.app.lib.theme.ATH
 import io.legado.app.lib.theme.accentColor
 import io.legado.app.lib.theme.view.ATEAutoCompleteTextView
 import io.legado.app.ui.book.arrange.ArrangeBookActivity
+import io.legado.app.ui.book.group.GroupManageDialog
 import io.legado.app.ui.book.search.SearchActivity
 import io.legado.app.ui.download.DownloadActivity
 import io.legado.app.ui.importbook.ImportBookActivity