diff --git a/res/anim/stay_activity_open_enter.xml b/res/anim/stay_activity_open_enter.xml
deleted file mode 100644
index 0326581ce..000000000
--- a/res/anim/stay_activity_open_enter.xml
+++ /dev/null
@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2014 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.
- -->
-<set xmlns:android="http://schemas.android.com/apk/res/android">
-    <alpha
-        android:fromAlpha="1.0"
-        android:toAlpha="1.0"
-        android:duration="200"/>
-</set>
\ No newline at end of file
diff --git a/res/drawable-hdpi/star_small.png b/res/drawable-hdpi/star_small.png
deleted file mode 100644
index ac4b29a35..000000000
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diff --git a/res/drawable-hdpi/star_small_empty.png b/res/drawable-hdpi/star_small_empty.png
deleted file mode 100644
index 3930851f9..000000000
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diff --git a/res/drawable-hdpi/star_small_half.png b/res/drawable-hdpi/star_small_half.png
deleted file mode 100644
index 0c7d09be8..000000000
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diff --git a/res/drawable-mdpi/star_small.png b/res/drawable-mdpi/star_small.png
deleted file mode 100644
index 4f30175d5..000000000
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diff --git a/res/drawable-mdpi/star_small_empty.png b/res/drawable-mdpi/star_small_empty.png
deleted file mode 100644
index 606008e33..000000000
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diff --git a/res/drawable-mdpi/star_small_half.png b/res/drawable-mdpi/star_small_half.png
deleted file mode 100644
index d6c9faa15..000000000
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diff --git a/res/drawable-xhdpi/star_small.png b/res/drawable-xhdpi/star_small.png
deleted file mode 100644
index 7009537aa..000000000
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diff --git a/res/drawable-xhdpi/star_small_empty.png b/res/drawable-xhdpi/star_small_empty.png
deleted file mode 100644
index d894754b8..000000000
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diff --git a/res/drawable-xhdpi/star_small_half.png b/res/drawable-xhdpi/star_small_half.png
deleted file mode 100644
index dd3c6e94b..000000000
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diff --git a/res/drawable-xxhdpi/star_small.png b/res/drawable-xxhdpi/star_small.png
deleted file mode 100644
index 02b343a77..000000000
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diff --git a/res/drawable-xxhdpi/star_small_empty.png b/res/drawable-xxhdpi/star_small_empty.png
deleted file mode 100644
index 8edd71899..000000000
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diff --git a/res/drawable-xxhdpi/star_small_half.png b/res/drawable-xxhdpi/star_small_half.png
deleted file mode 100644
index 4015316b2..000000000
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diff --git a/res/layout/start_activity_layout.xml b/res/layout/start_activity_layout.xml
deleted file mode 100644
index f837780e1..000000000
--- a/res/layout/start_activity_layout.xml
+++ /dev/null
@@ -1,35 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-     Copyright (C) 2014 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.
--->
-<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent" >
-
-    <com.hippo.ehviewer.widget.FitWindowView
-        android:id="@+id/standard"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent" />
-
-    <ImageView
-        android:id="@+id/bg"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent" />
-
-    <include
-        layout="@layout/start_activity"
-        android:visibility="visible" />
-
-</FrameLayout>
diff --git a/res/values/values_cardview.xml b/res/values/values_cardview.xml
deleted file mode 100644
index 0c72259da..000000000
--- a/res/values/values_cardview.xml
+++ /dev/null
@@ -1,23 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-
-    <!-- From: file:/usr/local/google/buildbot/repo_clients/https___googleplex-android.googlesource.com_a_platform_manifest.git/lmp-preview-release/frameworks/support/v7/cardview/res/values/colors.xml -->
-    <eat-comment />
-
-    <color name="cardview_dark_background">#FF202020</color>
-    <color name="cardview_light_background">#FFFAFAFA</color>
-    <color name="cardview_shadow_end_color">#03000000</color>
-    <color name="cardview_shadow_start_color">#37000000</color>
-    <!-- From: file:/usr/local/google/buildbot/repo_clients/https___googleplex-android.googlesource.com_a_platform_manifest.git/lmp-preview-release/frameworks/support/v7/cardview/res/values/attrs.xml -->
-    <eat-comment />
-
-    <!-- From: file:/usr/local/google/buildbot/repo_clients/https___googleplex-android.googlesource.com_a_platform_manifest.git/lmp-preview-release/frameworks/support/v7/cardview/res/values/dimens.xml -->
-    <eat-comment />
-
-    <dimen name="cardview_radius">2dp</dimen>
-    <dimen name="cardview_elevation">2dp</dimen>
-    <dimen name="cardview_shadow_size">2dp</dimen>
-    <!-- From: file:/usr/local/google/buildbot/repo_clients/https___googleplex-android.googlesource.com_a_platform_manifest.git/lmp-preview-release/frameworks/support/v7/cardview/res/values/styles.xml -->
-    <eat-comment />
-
-</resources>
diff --git a/res/values/values_staggeredgridview.xml b/res/values/values_staggeredgridview.xml
deleted file mode 100644
index 6831b25ee..000000000
--- a/res/values/values_staggeredgridview.xml
+++ /dev/null
@@ -1,15 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-
-    <declare-styleable name="StaggeredGridView">
-        <attr name="column_count" format="integer" />
-        <attr name="column_count_portrait" format="integer" />
-        <attr name="column_count_landscape" format="integer" />
-        <attr name="item_margin" format="dimension" />
-        <attr name="grid_paddingLeft" format="dimension" />
-        <attr name="grid_paddingRight" format="dimension" />
-        <attr name="grid_paddingTop" format="dimension" />
-        <attr name="grid_paddingBottom" format="dimension" />
-    </declare-styleable>
-
-</resources>
\ No newline at end of file