diff --git a/app/src/main/java/io/legado/app/ui/book/read/config/PageKeyDialog.kt b/app/src/main/java/io/legado/app/ui/book/read/config/PageKeyDialog.kt
index 092134e77..1d85a5963 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/config/PageKeyDialog.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/config/PageKeyDialog.kt
@@ -10,6 +10,7 @@ import io.legado.app.lib.theme.backgroundColor
 import io.legado.app.utils.getPrefString
 import io.legado.app.utils.hideSoftInput
 import io.legado.app.utils.putPrefString
+import splitties.views.onClick
 
 
 class PageKeyDialog(context: Context) : Dialog(context, R.style.AppTheme_AlertDialog) {
@@ -18,13 +19,19 @@ class PageKeyDialog(context: Context) : Dialog(context, R.style.AppTheme_AlertDi
 
     init {
         setContentView(binding.root)
-        binding.contentView.setBackgroundColor(context.backgroundColor)
-        binding.etPrev.setText(context.getPrefString(PreferKey.prevKeys))
-        binding.etNext.setText(context.getPrefString(PreferKey.nextKeys))
-        binding.tvOk.setOnClickListener {
-            context.putPrefString(PreferKey.prevKeys, binding.etPrev.text?.toString())
-            context.putPrefString(PreferKey.nextKeys, binding.etNext.text?.toString())
-            dismiss()
+        binding.run {
+            contentView.setBackgroundColor(context.backgroundColor)
+            etPrev.setText(context.getPrefString(PreferKey.prevKeys))
+            etNext.setText(context.getPrefString(PreferKey.nextKeys))
+            tvReset.onClick {
+                etPrev.setText("")
+                etNext.setText("")
+            }
+            tvOk.setOnClickListener {
+                context.putPrefString(PreferKey.prevKeys, etPrev.text?.toString())
+                context.putPrefString(PreferKey.nextKeys, etNext.text?.toString())
+                dismiss()
+            }
         }
     }
 
diff --git a/app/src/main/java/io/legado/app/ui/main/bookshelf/style2/BookshelfFragment2.kt b/app/src/main/java/io/legado/app/ui/main/bookshelf/style2/BookshelfFragment2.kt
index 6b81eafb7..1676710eb 100644
--- a/app/src/main/java/io/legado/app/ui/main/bookshelf/style2/BookshelfFragment2.kt
+++ b/app/src/main/java/io/legado/app/ui/main/bookshelf/style2/BookshelfFragment2.kt
@@ -121,11 +121,9 @@ class BookshelfFragment2 : BaseBookshelfFragment(R.layout.fragment_bookshelf1),
         bookGroupLiveData?.removeObservers(this)
         bookGroupLiveData = appDb.bookGroupDao.liveDataShow().apply {
             observe(viewLifecycleOwner) {
-                if (it.size != bookGroups.size) {
+                if (it != bookGroups) {
                     bookGroups = it
                     booksAdapter.notifyDataSetChanged()
-                } else {
-
                 }
             }
         }
@@ -183,7 +181,8 @@ class BookshelfFragment2 : BaseBookshelfFragment(R.layout.fragment_bookshelf1),
     override fun onItemClick(position: Int) {
         if (position < bookGroups.size) {
             val bookGroup = bookGroups[position]
-
+            groupId = bookGroup.groupId
+            initBooksData()
         } else {
             val book = books[position - bookGroups.size]
             when (book.type) {
@@ -200,6 +199,7 @@ class BookshelfFragment2 : BaseBookshelfFragment(R.layout.fragment_bookshelf1),
 
     override fun onItemLongClick(position: Int) {
         if (position < bookGroups.size) {
+            val bookGroup = bookGroups[position]
 
         } else {
             val book = books[position - bookGroups.size]
diff --git a/app/src/main/res/layout/dialog_page_key.xml b/app/src/main/res/layout/dialog_page_key.xml
index 8c5b7a1fa..bca82ea91 100644
--- a/app/src/main/res/layout/dialog_page_key.xml
+++ b/app/src/main/res/layout/dialog_page_key.xml
@@ -51,17 +51,44 @@
         android:textColor="@color/secondaryText"
         android:text="@string/page_key_set_help" />
 
-    <TextView
-        android:id="@+id/tv_ok"
+    <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_margin="5dp"
-        android:background="@drawable/selector_fillet_btn_bg"
-        android:clickable="true"
-        android:focusable="true"
-        android:gravity="center"
-        android:paddingTop="5dp"
-        android:paddingBottom="5dp"
-        android:text="@string/ok"
-        android:textColor="@color/primaryText" />
+        android:orientation="horizontal">
+
+        <TextView
+            android:id="@+id/tv_reset"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:background="@drawable/selector_fillet_btn_bg"
+            android:clickable="true"
+            android:focusable="true"
+            android:gravity="center"
+            android:paddingTop="5dp"
+            android:paddingBottom="5dp"
+            android:text="@string/reset"
+            android:textColor="@color/primaryText" />
+
+        <Space
+            android:layout_width="3dp"
+            android:layout_height="wrap_content" />
+
+        <TextView
+            android:id="@+id/tv_ok"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:background="@drawable/selector_fillet_btn_bg"
+            android:clickable="true"
+            android:focusable="true"
+            android:gravity="center"
+            android:paddingTop="5dp"
+            android:paddingBottom="5dp"
+            android:text="@string/ok"
+            android:textColor="@color/primaryText" />
+
+    </LinearLayout>
+
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values-ja-rJP/strings.xml b/app/src/main/res/values-ja-rJP/strings.xml
index 0b7147b23..5a1faaab2 100644
--- a/app/src/main/res/values-ja-rJP/strings.xml
+++ b/app/src/main/res/values-ja-rJP/strings.xml
@@ -844,4 +844,5 @@
     <string name="style">样式</string>
     <string name="group_style">分组样式</string>
     <string name="export_file_name">导出文件名</string>
+    <string name="reset">重置</string>
 </resources>
diff --git a/app/src/main/res/values-pt-rBR/strings.xml b/app/src/main/res/values-pt-rBR/strings.xml
index af54188db..b63473b0c 100644
--- a/app/src/main/res/values-pt-rBR/strings.xml
+++ b/app/src/main/res/values-pt-rBR/strings.xml
@@ -844,4 +844,5 @@
     <string name="style">Formato</string>
     <string name="group_style">Formato de grupo</string>
     <string name="export_file_name">Exportar o nome do arquivo</string>
+    <string name="reset">重置</string>
 </resources>
diff --git a/app/src/main/res/values-zh-rHK/strings.xml b/app/src/main/res/values-zh-rHK/strings.xml
index 6114e1dfc..c9541a334 100644
--- a/app/src/main/res/values-zh-rHK/strings.xml
+++ b/app/src/main/res/values-zh-rHK/strings.xml
@@ -842,5 +842,6 @@
     <string name="style">样式</string>
     <string name="group_style">分组样式</string>
     <string name="export_file_name">导出文件名</string>
+    <string name="reset">重置</string>
 
 </resources>
diff --git a/app/src/main/res/values-zh-rTW/strings.xml b/app/src/main/res/values-zh-rTW/strings.xml
index 27608165e..66690b74c 100644
--- a/app/src/main/res/values-zh-rTW/strings.xml
+++ b/app/src/main/res/values-zh-rTW/strings.xml
@@ -843,5 +843,6 @@
     <string name="style">样式</string>
     <string name="group_style">分组样式</string>
     <string name="export_file_name">导出文件名</string>
+    <string name="reset">重置</string>
 
 </resources>
diff --git a/app/src/main/res/values-zh/strings.xml b/app/src/main/res/values-zh/strings.xml
index 5d74d9a46..011f56181 100644
--- a/app/src/main/res/values-zh/strings.xml
+++ b/app/src/main/res/values-zh/strings.xml
@@ -843,5 +843,6 @@
     <string name="style">样式</string>
     <string name="group_style">分组样式</string>
     <string name="export_file_name">导出文件名</string>
+    <string name="reset">重置</string>
 
 </resources>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 3070fd2c8..959b1b77c 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -844,5 +844,6 @@
     <string name="style">Style</string>
     <string name="group_style">Group style</string>
     <string name="export_file_name">Export file name</string>
+    <string name="reset">Reset</string>
 
 </resources>