diff --git a/app/src/main/java/com/hippo/widget/CuteSpinner.java b/app/src/main/java/com/hippo/widget/CuteSpinner.java
deleted file mode 100644
index 1df26de89..000000000
--- a/app/src/main/java/com/hippo/widget/CuteSpinner.java
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
- * Copyright 2016 Hippo Seven
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.hippo.widget;
-
-import android.content.Context;
-import android.content.res.Resources;
-import android.content.res.TypedArray;
-import android.util.AttributeSet;
-import android.widget.ArrayAdapter;
-
-import androidx.appcompat.widget.AppCompatSpinner;
-
-import com.hippo.ehviewer.R;
-
-public class CuteSpinner extends AppCompatSpinner {
-
-    public CuteSpinner(Context context) {
-        super(context);
-        init(context, null, androidx.appcompat.R.attr.spinnerStyle);
-    }
-
-    public CuteSpinner(Context context, int mode) {
-        super(context, mode);
-        init(context, null, androidx.appcompat.R.attr.spinnerStyle);
-    }
-
-    public CuteSpinner(Context context, AttributeSet attrs) {
-        super(context, attrs);
-        init(context, attrs, androidx.appcompat.R.attr.spinnerStyle);
-    }
-
-    public CuteSpinner(Context context, AttributeSet attrs, int defStyleAttr) {
-        super(context, attrs, defStyleAttr);
-        init(context, attrs, defStyleAttr);
-    }
-
-    public CuteSpinner(Context context, AttributeSet attrs, int defStyleAttr, int mode) {
-        super(context, attrs, defStyleAttr, mode);
-        init(context, attrs, defStyleAttr);
-    }
-
-    public CuteSpinner(Context context, AttributeSet attrs, int defStyleAttr, int mode, Resources.Theme popupTheme) {
-        super(context, attrs, defStyleAttr, mode, popupTheme);
-        init(context, attrs, defStyleAttr);
-    }
-
-    private void init(Context context, AttributeSet attrs, int defStyleAttr) {
-        TypedArray a = context.obtainStyledAttributes(attrs,
-                androidx.appcompat.R.styleable.Spinner, defStyleAttr, 0);
-        final CharSequence[] entries = a.getTextArray(androidx.appcompat.R.styleable.Spinner_android_entries);
-        if (entries != null) {
-            final ArrayAdapter<CharSequence> adapter = new ArrayAdapter<>(context,
-                    R.layout.item_cute_spinner_item, entries);
-            adapter.setDropDownViewResource(androidx.appcompat.R.layout.support_simple_spinner_dropdown_item);
-            setAdapter(adapter);
-        }
-        a.recycle();
-    }
-}
diff --git a/app/src/main/res/layout/dialog_add_filter.xml b/app/src/main/res/layout/dialog_add_filter.xml
index c1babca74..5231f07e9 100644
--- a/app/src/main/res/layout/dialog_add_filter.xml
+++ b/app/src/main/res/layout/dialog_add_filter.xml
@@ -21,7 +21,7 @@
     android:paddingHorizontal="?attr/dialogPreferredPadding"
     android:paddingTop="@dimen/abc_dialog_padding_top_material">
 
-    <com.hippo.widget.CuteSpinner
+    <androidx.appcompat.widget.AppCompatSpinner
         android:id="@+id/spinner"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
diff --git a/app/src/main/res/layout/dialog_gallery_menu.xml b/app/src/main/res/layout/dialog_gallery_menu.xml
index 8342b2fee..7d2d451ed 100644
--- a/app/src/main/res/layout/dialog_gallery_menu.xml
+++ b/app/src/main/res/layout/dialog_gallery_menu.xml
@@ -39,7 +39,7 @@
                 android:layout_weight="1"
                 android:text="@string/settings_read_screen_rotation" />
 
-            <com.hippo.widget.CuteSpinner
+            <androidx.appcompat.widget.AppCompatSpinner
                 android:id="@+id/screen_rotation"
                 android:layout_width="0dp"
                 android:layout_height="wrap_content"
@@ -61,7 +61,7 @@
                 android:layout_weight="1"
                 android:text="@string/settings_read_reading_direction" />
 
-            <com.hippo.widget.CuteSpinner
+            <androidx.appcompat.widget.AppCompatSpinner
                 android:id="@+id/reading_direction"
                 android:layout_width="0dp"
                 android:layout_height="wrap_content"
@@ -83,7 +83,7 @@
                 android:layout_weight="1"
                 android:text="@string/settings_read_page_scaling" />
 
-            <com.hippo.widget.CuteSpinner
+            <androidx.appcompat.widget.AppCompatSpinner
                 android:id="@+id/page_scaling"
                 android:layout_width="0dp"
                 android:layout_height="wrap_content"
@@ -105,7 +105,7 @@
                 android:layout_weight="1"
                 android:text="@string/settings_read_start_position" />
 
-            <com.hippo.widget.CuteSpinner
+            <androidx.appcompat.widget.AppCompatSpinner
                 android:id="@+id/start_position"
                 android:layout_width="0dp"
                 android:layout_height="wrap_content"
@@ -127,7 +127,7 @@
                 android:layout_weight="1"
                 android:text="@string/read_theme" />
 
-            <com.hippo.widget.CuteSpinner
+            <androidx.appcompat.widget.AppCompatSpinner
                 android:id="@+id/read_theme"
                 android:layout_width="0dp"
                 android:layout_height="wrap_content"
diff --git a/app/src/main/res/layout/preference_dialog_proxy.xml b/app/src/main/res/layout/preference_dialog_proxy.xml
index 4c4c0de38..e8855d807 100644
--- a/app/src/main/res/layout/preference_dialog_proxy.xml
+++ b/app/src/main/res/layout/preference_dialog_proxy.xml
@@ -22,7 +22,7 @@
     android:paddingTop="18dp"
     android:paddingRight="?attr/dialogPreferredPadding">
 
-    <com.hippo.widget.CuteSpinner
+    <androidx.appcompat.widget.AppCompatSpinner
         android:id="@+id/type"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"