diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 930ad6737..3d869cd61 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (C) 2014 Hippo Seven
+<!--
+     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.
@@ -12,65 +13,66 @@
      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.
- -->
+-->
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.hippo.ehviewer"
     android:versionCode="19"
     android:versionName="0.5.4" >
-    
+
     <uses-sdk
         android:minSdkVersion="14"
         android:targetSdkVersion="19" />
-    
+
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
-    
+
     <application
         android:name=".AppContext"
         android:allowBackup="true"
-        android:largeHeap="false"
         android:hardwareAccelerated="true"
         android:icon="@drawable/ic_launcher"
         android:label="@string/app_name"
+        android:largeHeap="false"
         android:theme="@style/AppTheme.Normal" >
-        
         <activity
             android:name=".StartActivity"
             android:label="@string/app_name"
-            android:theme="@style/AppTheme.NoActionBar.Transparent"
-            android:screenOrientation="portrait" >
+            android:screenOrientation="portrait"
+            android:theme="@style/AppTheme.NoActionBar.Transparent" >
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
+
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
-        
         <activity
             android:name="com.hippo.ehviewer.ui.MangaListActivity"
-            android:label="@string/app_name"
-            android:screenOrientation="portrait"
             android:configChanges="orientation|screenSize"
-            android:theme="@style/AppTheme.Main.ListActivity"
-            android:launchMode="singleTask" >
+            android:label="@string/app_name"
+            android:launchMode="singleTask"
+            android:screenOrientation="behind"
+            android:theme="@style/AppTheme.Main.ListActivity" >
             <intent-filter>
                 <action android:name="android.intent.action.SEARCH" />
             </intent-filter>
+
             <meta-data
                 android:name="android.app.searchable"
                 android:resource="@xml/searchable" />
         </activity>
-        
         <activity
             android:name="com.hippo.ehviewer.ui.MangaDetailActivity"
-            android:screenOrientation="portrait"
-            android:windowSoftInputMode="adjustPan|adjustUnspecified|stateHidden"
             android:configChanges="orientation|screenSize"
-            android:launchMode="singleTask" >
+            android:launchMode="singleTask"
+            android:screenOrientation="behind"
+            android:windowSoftInputMode="adjustPan|adjustUnspecified|stateHidden" >
             <intent-filter>
                 <action android:name="android.intent.action.VIEW" />
+
                 <category android:name="android.intent.category.DEFAULT" />
                 <category android:name="android.intent.category.BROWSABLE" />
+
                 <data android:scheme="http" />
                 <data android:host="exhentai.org" />
                 <data android:host="g.e-hentai.org" />
@@ -78,57 +80,49 @@
                 <data android:pathPrefix="/g/" />
             </intent-filter>
         </activity>
-        
         <activity
             android:name="com.hippo.ehviewer.ui.MangaActivity"
-            android:screenOrientation="portrait"
-            android:configChanges="orientation|screenSize" >
+            android:configChanges="orientation|screenSize"
+            android:screenOrientation="behind" >
         </activity>
-        
         <activity
             android:name="com.hippo.ehviewer.ui.SettingsActivity"
-            android:label="@string/preference_settings_title"
+            android:configChanges="orientation|screenSize"
             android:icon="@drawable/ic_action_settings"
-            android:screenOrientation="portrait"
-            android:configChanges="orientation|screenSize" >
+            android:label="@string/preference_settings_title"
+            android:screenOrientation="behind" >
         </activity>
-        
         <activity
             android:name="com.hippo.ehviewer.ui.FavouriteActivity"
-            android:label="@string/favourite"
-            android:icon="@drawable/ic_action_favorite"
-            android:screenOrientation="portrait"
             android:configChanges="orientation|screenSize"
+            android:icon="@drawable/ic_action_favorite"
+            android:label="@string/favourite"
+            android:screenOrientation="behind"
             android:theme="@style/AppTheme.ListActivity" >
         </activity>
-        
         <activity
             android:name="com.hippo.ehviewer.ui.DownloadActivity"
-            android:label="@string/download"
-            android:icon="@drawable/ic_action_download"
-            android:screenOrientation="portrait"
             android:configChanges="orientation|screenSize"
+            android:icon="@drawable/ic_action_download"
+            android:label="@string/download"
             android:launchMode="singleTask"
-            android:parentActivityName="com.hippo.ehviewer.ui.MangaListActivity"
+            android:screenOrientation="behind"
             android:theme="@style/AppTheme.ListActivity" >
-            
             <meta-data
                 android:name="android.support.PARENT_ACTIVITY"
                 android:value="com.hippo.ehviewer.activity.MangaListActivity" />
         </activity>
-        
         <activity
             android:name="com.hippo.ehviewer.ui.MangaDownloadActivity"
-            android:label="@string/download"
+            android:configChanges="orientation|screenSize"
             android:icon="@drawable/ic_action_download"
-            android:screenOrientation="portrait"
-            android:configChanges="orientation|screenSize" >
+            android:label="@string/download"
+            android:screenOrientation="behind" >
         </activity>
-        
-        <service 
+
+        <service
             android:name=".service.DownloadService"
             android:label="DownloadService" />
-        
     </application>
 
-</manifest>
+</manifest>
\ No newline at end of file
diff --git a/src/com/hippo/ehviewer/ui/AbstractActivity.java b/src/com/hippo/ehviewer/ui/AbstractActivity.java
index aa2ad6c87..e355ee799 100644
--- a/src/com/hippo/ehviewer/ui/AbstractActivity.java
+++ b/src/com/hippo/ehviewer/ui/AbstractActivity.java
@@ -16,41 +16,35 @@
 
 package com.hippo.ehviewer.ui;
 
+import android.app.Activity;
+
 import com.google.analytics.tracking.android.EasyTracker;
 import com.hippo.ehviewer.util.Config;
-
-import android.app.Activity;
-import android.os.Bundle;
+import com.hippo.ehviewer.util.Ui;
 
 public abstract class AbstractActivity extends Activity {
-    
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        
-        int screenOri = Config.getScreenOriMode();
-        if (screenOri != getRequestedOrientation())
-            setRequestedOrientation(screenOri);
-    }
-    
+
     @Override
     protected void onResume() {
         super.onResume();
-        int screenOri = Config.getScreenOriMode();
-        if (screenOri != getRequestedOrientation())
-            setRequestedOrientation(screenOri);
+
+        Ui.adjustOrientation(this);
     }
-    
+
     @Override
     public void onStart() {
       super.onStart();
+
       if (Config.getAllowAnalyics())
           EasyTracker.getInstance(this).activityStart(this);
+
+      Ui.adjustOrientation(this);
     }
-    
+
     @Override
     public void onStop() {
       super.onStop();
+
       if (Config.getAllowAnalyics())
           EasyTracker.getInstance(this).activityStop(this);
     }
diff --git a/src/com/hippo/ehviewer/ui/AbstractFragmentActivity.java b/src/com/hippo/ehviewer/ui/AbstractFragmentActivity.java
index 5ad7ea3c1..c840bde79 100644
--- a/src/com/hippo/ehviewer/ui/AbstractFragmentActivity.java
+++ b/src/com/hippo/ehviewer/ui/AbstractFragmentActivity.java
@@ -16,45 +16,39 @@
 
 package com.hippo.ehviewer.ui;
 
-import android.os.Bundle;
 import android.support.v4.app.FragmentActivity;
 
 import com.google.analytics.tracking.android.EasyTracker;
 import com.hippo.ehviewer.cache.ImageCache;
 import com.hippo.ehviewer.util.Config;
+import com.hippo.ehviewer.util.Ui;
 
 public abstract class AbstractFragmentActivity extends FragmentActivity {
-    
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        
-        int screenOri = Config.getScreenOriMode();
-        if (screenOri != getRequestedOrientation())
-            setRequestedOrientation(screenOri);
-    }
-    
+
     @Override
     protected void onResume() {
         super.onResume();
-        int screenOri = Config.getScreenOriMode();
-        if (screenOri != getRequestedOrientation())
-            setRequestedOrientation(screenOri);
+
+        Ui.adjustOrientation(this);
     }
-    
+
     @Override
     public void onStart() {
       super.onStart();
+
       if (Config.getAllowAnalyics())
           EasyTracker.getInstance(this).activityStart(this);
+
+      Ui.adjustOrientation(this);
     }
-    
+
     @Override
     public void onStop() {
       super.onStop();
+
       if (Config.getAllowAnalyics())
           EasyTracker.getInstance(this).activityStop(this);
-      
+
       ImageCache.getInstance(this).flush();
     }
 }
diff --git a/src/com/hippo/ehviewer/ui/AbstractPreferenceActivity.java b/src/com/hippo/ehviewer/ui/AbstractPreferenceActivity.java
index 7b5bc9f59..8d07fe737 100644
--- a/src/com/hippo/ehviewer/ui/AbstractPreferenceActivity.java
+++ b/src/com/hippo/ehviewer/ui/AbstractPreferenceActivity.java
@@ -16,41 +16,35 @@
 
 package com.hippo.ehviewer.ui;
 
-import com.google.analytics.tracking.android.EasyTracker;
-import com.hippo.ehviewer.util.Config;
-
-import android.os.Bundle;
 import android.preference.PreferenceActivity;
 
+import com.google.analytics.tracking.android.EasyTracker;
+import com.hippo.ehviewer.util.Config;
+import com.hippo.ehviewer.util.Ui;
+
 public class AbstractPreferenceActivity extends PreferenceActivity {
-    
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        
-        int screenOri = Config.getScreenOriMode();
-        if (screenOri != getRequestedOrientation())
-            setRequestedOrientation(screenOri);
-    }
-    
+
     @Override
     protected void onResume() {
         super.onResume();
-        int screenOri = Config.getScreenOriMode();
-        if (screenOri != getRequestedOrientation())
-            setRequestedOrientation(screenOri);
+
+        Ui.adjustOrientation(this);
     }
-    
+
     @Override
     public void onStart() {
       super.onStart();
+
       if (Config.getAllowAnalyics())
           EasyTracker.getInstance(this).activityStart(this);
+
+      Ui.adjustOrientation(this);
     }
-    
+
     @Override
     public void onStop() {
       super.onStop();
+
       if (Config.getAllowAnalyics())
           EasyTracker.getInstance(this).activityStop(this);
     }
diff --git a/src/com/hippo/ehviewer/ui/AbstractSlidingActivity.java b/src/com/hippo/ehviewer/ui/AbstractSlidingActivity.java
index 8ad06a9b1..e2d042e67 100644
--- a/src/com/hippo/ehviewer/ui/AbstractSlidingActivity.java
+++ b/src/com/hippo/ehviewer/ui/AbstractSlidingActivity.java
@@ -16,45 +16,38 @@
 
 package com.hippo.ehviewer.ui;
 
-import android.os.Bundle;
-
 import com.google.analytics.tracking.android.EasyTracker;
 import com.hippo.ehviewer.cache.ImageCache;
 import com.hippo.ehviewer.util.Config;
+import com.hippo.ehviewer.util.Ui;
 import com.jeremyfeinstein.slidingmenu.lib.app.SlidingActivity;
 
 public class AbstractSlidingActivity extends SlidingActivity {
-    
-    @Override
-    public void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        
-        int screenOri = Config.getScreenOriMode();
-        if (screenOri != getRequestedOrientation())
-            setRequestedOrientation(screenOri);
-    }
-    
+
     @Override
     protected void onResume() {
         super.onResume();
-        int screenOri = Config.getScreenOriMode();
-        if (screenOri != getRequestedOrientation())
-            setRequestedOrientation(screenOri);
+
+        Ui.adjustOrientation(this);
     }
-    
+
     @Override
     public void onStart() {
       super.onStart();
+
       if (Config.getAllowAnalyics())
           EasyTracker.getInstance(this).activityStart(this);
+
+      Ui.adjustOrientation(this);
     }
-    
+
     @Override
     public void onStop() {
       super.onStop();
+
       if (Config.getAllowAnalyics())
           EasyTracker.getInstance(this).activityStop(this);
-      
+
       ImageCache.getInstance(this).flush();
     }
 }
diff --git a/src/com/hippo/ehviewer/util/Ui.java b/src/com/hippo/ehviewer/util/Ui.java
index fece02a8f..f75ec2862 100644
--- a/src/com/hippo/ehviewer/util/Ui.java
+++ b/src/com/hippo/ehviewer/util/Ui.java
@@ -16,33 +16,26 @@
 
 package com.hippo.ehviewer.util;
 
-import com.hippo.ehviewer.ListUrls;
-import com.hippo.ehviewer.R;
-import com.readystatesoftware.systembartint.SystemBarTintManager;
-import com.readystatesoftware.systembartint.SystemBarTintManager.SystemBarConfig;
-
-import android.annotation.SuppressLint;
-import android.annotation.TargetApi;
 import android.app.Activity;
 import android.content.Context;
 import android.content.res.Resources;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.graphics.Color;
-import android.graphics.Movie;
 import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
-import android.os.Build;
 import android.util.DisplayMetrics;
 import android.view.KeyCharacterMap;
 import android.view.KeyEvent;
 import android.view.View;
+import android.view.View.MeasureSpec;
 import android.view.ViewConfiguration;
 import android.view.ViewGroup;
-import android.view.Window;
-import android.view.WindowManager;
-import android.view.View.MeasureSpec;
-import android.widget.ImageView;
+
+import com.hippo.ehviewer.ListUrls;
+import com.hippo.ehviewer.R;
+import com.readystatesoftware.systembartint.SystemBarTintManager;
+import com.readystatesoftware.systembartint.SystemBarTintManager.SystemBarConfig;
 
 public class Ui {
     @SuppressWarnings("unused")
@@ -50,12 +43,12 @@ public class Ui {
     private static Context mContext;
     private static Resources mResources;
     private static final BitmapFactory.Options opt = new BitmapFactory.Options();
-    
+
     private static float mDensity;
-    
+
     public static int HOLO_BLUE_DARK;
     public static int LIST_MAIN_BG;
-    
+
     public static int DOUJINSHI_BG_COLOR;
     public static int MANGA_BG_COLOR;
     public static int ARTIST_CG_BG_COLOR;
@@ -67,35 +60,35 @@ public class Ui {
     public static int ASIAN_PORN_BG_COLOR;
     public static int MISC_BG_COLOR;
     public static int UNKNOWN_BG_COLOR;
-    
+
     public static Drawable transparentDrawable;
-    
+
     private static boolean mInit = false;
-    
+
     /**
      * Init Crash
-     * 
+     *
      * @param context Application context
      */
     public static void init(Context context) {
         if (mInit)
             return;
         mInit = true;
-        
+
         mContext = context;
-        
+
         opt.inPreferredConfig = Bitmap.Config.RGB_565;
         opt.inPurgeable = true;
         opt.inInputShareable = true;
-        
+
         mResources = mContext.getResources();
-        
+
         mDensity = mResources.getDisplayMetrics().density;
-        
+
         // init color
         HOLO_BLUE_DARK = mResources.getColor(android.R.color.holo_blue_dark);
         LIST_MAIN_BG = mResources.getColor(R.color.list_main_bg);
-        
+
         DOUJINSHI_BG_COLOR = mResources.getColor(R.color.doujinshi_bg);
         MANGA_BG_COLOR = mResources.getColor(R.color.manga_bg);
         ARTIST_CG_BG_COLOR = mResources.getColor(R.color.artist_cg_bg);
@@ -107,11 +100,11 @@ public class Ui {
         ASIAN_PORN_BG_COLOR = mResources.getColor(R.color.asian_porn_bg);
         MISC_BG_COLOR = mResources.getColor(R.color.misc_bg);
         UNKNOWN_BG_COLOR = mResources.getColor(R.color.unknown_bg);
-        
+
         // init drawable
         transparentDrawable = new ColorDrawable(Color.TRANSPARENT);
     }
-    
+
     /**
      * Is init
      * @return True if init
@@ -119,7 +112,7 @@ public class Ui {
     public static boolean isInit() {
         return mInit;
     }
-    
+
     public static String getCategoryText(int category) {
         switch (category) {
         case ListUrls.DOUJINSHI:
@@ -146,7 +139,7 @@ public class Ui {
             return mResources.getString(R.string.unknown);
         }
     }
-    
+
     public static int getCategoryColor(int category) {
         switch (category) {
         case ListUrls.DOUJINSHI:
@@ -173,30 +166,30 @@ public class Ui {
             return UNKNOWN_BG_COLOR;
         }
     }
-    
+
     /**
      * dp conversion to pix
-     * 
+     *
      * @param dp The value you want to conversion
      * @return value in pix
      */
     public static int dp2pix(float dp) {
         return (int) (mDensity * dp + 0.5f);
     }
-    
+
     public static float pix2dp(int pix) {
         return pix/mDensity;
     }
-    
+
     /**
      * Get default BitmapFactory.Options
-     * 
+     *
      * @return
      */
     public static BitmapFactory.Options getBitmapOpt() {
         return opt;
     }
-    
+
     /**
      * Check has navigation bar or not
      * @return
@@ -205,12 +198,12 @@ public class Ui {
         boolean hasNavigationBar = false;
         boolean hasMenuKey = ViewConfiguration.get(mContext).hasPermanentMenuKey();
         boolean hasBackKey = KeyCharacterMap.deviceHasKey(KeyEvent.KEYCODE_BACK);
-        
+
         if(!hasMenuKey && !hasBackKey)
             hasNavigationBar = true;
         return hasNavigationBar;
     }
-    
+
     /**
      * Get height of status bar
      * @return
@@ -223,7 +216,7 @@ public class Ui {
             return resources.getDimensionPixelSize(sbhResourceId);
         else return 0;
     }
-    
+
     /**
      * Get height of navigation bar
      * @param force If false, alway return 0 if the device has no navigation bar
@@ -239,7 +232,7 @@ public class Ui {
         else
             return 0;
     }
-    
+
     public static void measureView(View child) {
         ViewGroup.LayoutParams p = child.getLayoutParams();
         if (p == null) {
@@ -258,10 +251,10 @@ public class Ui {
         }
         child.measure(childWidthSpec, childHeightSpec);
     }
-    
+
     public static final int ORIENTATION_PORTRAIT = 0x0;
     public static final int ORIENTATION_LANDSCAPE = 0x1;
-    
+
     public static int getOrientation(Activity activity) {
         DisplayMetrics dm = new DisplayMetrics();
         activity.getWindowManager().getDefaultDisplay().getMetrics(dm);
@@ -271,18 +264,24 @@ public class Ui {
             return ORIENTATION_LANDSCAPE;
         }
     }
-    
+
+    public static void adjustOrientation(Activity activity) {
+        int screenOri = Config.getScreenOriMode();
+        if (screenOri != activity.getRequestedOrientation())
+            activity.setRequestedOrientation(screenOri);
+    }
+
     public static SystemBarConfig translucent(
             Activity activity) {
         return translucentColor(activity,
                 mResources.getColor(android.R.color.holo_blue_dark));
     }
-    
+
     public static SystemBarConfig translucentColor(
             Activity activity, int color) {
         return translucent(activity, color);
     }
-    
+
     public static SystemBarConfig translucent(
             Activity activity, int color) {
         SystemBarTintManager tintManager = new SystemBarTintManager(activity);