diff --git a/SampleApp/build.gradle b/SampleApp/build.gradle
index 7ac69fd..208fdd9 100644
--- a/SampleApp/build.gradle
+++ b/SampleApp/build.gradle
@@ -18,12 +18,7 @@ android {
         versionCode 1
         versionName "1.0"
     }
-    buildTypes {
-        release {
-            runProguard false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
-        }
-    }
+    
 }
 
 
diff --git a/ShortcutBadger/build.gradle b/ShortcutBadger/build.gradle
index d7e79db..e8ab75a 100644
--- a/ShortcutBadger/build.gradle
+++ b/ShortcutBadger/build.gradle
@@ -10,17 +10,12 @@ android {
     buildToolsVersion "20.0.0"
 
     defaultConfig {
-        applicationId 'me.leolin.shortcutbadger'
         minSdkVersion 8
         targetSdkVersion 19
         versionCode 1
         versionName "1.0"
     }
-    buildTypes {
-        release {
-            runProguard false
-        }
-    }
+    
 
 }
 
diff --git a/ShortcutBadger/src/main/AndroidManifest.xml b/ShortcutBadger/src/main/AndroidManifest.xml
index 83d723a..f1b48fd 100644
--- a/ShortcutBadger/src/main/AndroidManifest.xml
+++ b/ShortcutBadger/src/main/AndroidManifest.xml
@@ -6,6 +6,8 @@
     <!--for android-->
     <uses-permission android:name="com.android.launcher.permission.READ_SETTINGS"/>
     <uses-permission android:name="com.android.launcher.permission.WRITE_SETTINGS"/>
+    <uses-permission android:name="com.android.launcher.action.INSTALL_SHORTCUT" />
+    <uses-permission android:name="com.android.launcher.permission.UNINSTALL_SHORTCUT" />
 
     <!--for Samsung-->
     <uses-permission android:name="com.sec.android.provider.badge.permission.READ"/>
diff --git a/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/ShortcutBadger.java b/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/ShortcutBadger.java
index 0aa5bf7..c51ad78 100644
--- a/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/ShortcutBadger.java
+++ b/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/ShortcutBadger.java
@@ -5,8 +5,10 @@ import android.content.Context;
 import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
+import android.os.Build;
 import me.leolin.shortcutbadger.impl.*;
 
+
 /**
  * Created with IntelliJ IDEA.
  * User: leolin
@@ -15,15 +17,21 @@ import me.leolin.shortcutbadger.impl.*;
  * To change this template use File | Settings | File Templates.
  */
 public abstract class ShortcutBadger {
-    private static final String HOME_PACKAGE_SONY = "com.sonyericsson.home";
-    private static final String HOME_PACKAGE_SAMSUNG = "com.sec.android.app.launcher";
-    private static final String HOME_PACKAGE_LG = "com.lge.launcher2";
+    private static final String HOME_PACKAGE_SONY1 = "com.sonyericsson.home";
+    private static final String HOME_PACKAGE_SONY2 = "com.anddoes.launcher";
+    private static final String HOME_PACKAGE_SAMSUNG1 = "com.sec.android.app.launcher";
+    private static final String HOME_PACKAGE_SAMSUNG2 = "com.sec.android.app.twlauncher";
+    private static final String HOME_PACKAGE_LG1 = "com.lge.launcher";
+    private static final String HOME_PACKAGE_LG2 = "com.lge.launcher2";
     private static final String HOME_PACKAGE_HTC = "com.htc.launcher";
-    private static final String HOME_PACKAGE_ANDROID = "com.android.launcher";
     private static final String HOME_PACKAGE_APEX = "com.anddoes.launcher";
     private static final String HOME_PACKAGE_ADW = "org.adw.launcher";
     private static final String HOME_PACKAGE_ADW_EX = "org.adwfreak.launcher";
     private static final String HOME_PACKAGE_NOVA = "com.teslacoilsw.launcher";
+    private static final String HOME_PACKAGE_ANDROID1 = "com.android.launcher";
+    private static final String HOME_PACKAGE_ANDROID2 = "com.android.launcher2";
+    private static final String HOME_PACKAGE_ANDROID3 = "com.google.android.googlequicksearchbox";
+
 
     private static final String MESSAGE_NOT_SUPPORT_BADGE_COUNT = "ShortBadger is currently not support the badgeCount \"%d\"";
     private static final String MESSAGE_NOT_SUPPORT_THIS_HOME = "ShortcutBadger is currently not support the home launcher package \"%s\"";
@@ -31,6 +39,8 @@ public abstract class ShortcutBadger {
     private static final int MIN_BADGE_COUNT = 0;
     private static final int MAX_BADGE_COUNT = 99;
 
+    private static ShortcutBadger sShortcutBadger;
+
     private ShortcutBadger() {
     }
 
@@ -55,41 +65,64 @@ public abstract class ShortcutBadger {
         ResolveInfo resolveInfo = context.getPackageManager().resolveActivity(intent, PackageManager.MATCH_DEFAULT_ONLY);
         String currentHomePackage = resolveInfo.activityInfo.packageName;
 
-        //different home launcher packages use different way adding badges
-        ShortcutBadger mShortcutBadger = null;
-        if (HOME_PACKAGE_SONY.equals(currentHomePackage)) {
-            mShortcutBadger = new SonyHomeBadger(context);
-        } else if (HOME_PACKAGE_SAMSUNG.equals(currentHomePackage)) {
-            mShortcutBadger = new SamsungHomeBadger(context);
-        } else if (HOME_PACKAGE_LG.equals(currentHomePackage)) {
-            mShortcutBadger = new LGHomeBadger(context);
-        } else if (HOME_PACKAGE_HTC.equals(currentHomePackage)) {
-//            mShortcutBadger = new hTCHomeBadger(context);
-            mShortcutBadger = new NewHtcHomeBadger(context);
-        } else if (HOME_PACKAGE_ANDROID.equals(currentHomePackage)) {
-            mShortcutBadger = new AndroidHomeBadger(context);
-        } else if (HOME_PACKAGE_APEX.equals(currentHomePackage)) {
-            mShortcutBadger = new ApexHomeBadger(context);
-        } else if (HOME_PACKAGE_ADW.equals(currentHomePackage)
-                || HOME_PACKAGE_ADW_EX.equals(currentHomePackage)) {
-            mShortcutBadger = new AdwHomeBadger(context);
-        } else if (HOME_PACKAGE_NOVA.equals(currentHomePackage)) {
-            mShortcutBadger = new NovaHomeBadger(context);
-        }
+
+        ShortcutBadger shortcutBadger = getShortcutBadger(currentHomePackage, context);
 
         //not support this home launcher package
-        if (mShortcutBadger == null) {
+        if (shortcutBadger == null) {
             String exceptionMessage = String.format(MESSAGE_NOT_SUPPORT_THIS_HOME, currentHomePackage);
             throw new ShortcutBadgeException(exceptionMessage);
         }
         try {
-            mShortcutBadger.executeBadge(badgeCount);
+            shortcutBadger.executeBadge(badgeCount);
         } catch (Throwable e) {
             throw new ShortcutBadgeException("Unable to execute badge:" + e.getMessage());
         }
+        shortcutBadger.executeBadge(badgeCount);
 
     }
 
+    private static ShortcutBadger getShortcutBadger(String currentHomePackage, Context context) {
+        if (sShortcutBadger != null) {
+            return sShortcutBadger;
+        }
+
+        // Workaround for Meizu:
+        // Meizu declare 'com.android.launcher', but hold something else
+        // Icons get duplicated on restart after badge change
+        if (Build.MANUFACTURER.toLowerCase().contains("meizu")) {
+            return null;
+        }
+
+
+        if (HOME_PACKAGE_SONY1.equals(currentHomePackage) ||
+                HOME_PACKAGE_SONY2.equals(currentHomePackage)) {
+            sShortcutBadger = new SonyHomeBadger(context);
+        } else if (HOME_PACKAGE_SAMSUNG1.equals(currentHomePackage) ||
+                HOME_PACKAGE_SAMSUNG2.equals(currentHomePackage)) {
+            sShortcutBadger = new SamsungHomeBadger(context);
+        } else if (HOME_PACKAGE_LG1.equals(currentHomePackage) ||
+                HOME_PACKAGE_LG2.equals(currentHomePackage)) {
+            sShortcutBadger = new LGHomeBadger(context);
+        } else if (HOME_PACKAGE_HTC.equals(currentHomePackage)) {
+            sShortcutBadger = new NewHtcHomeBadger(context);
+        } else if (HOME_PACKAGE_ANDROID1.equals(currentHomePackage) ||
+                HOME_PACKAGE_ANDROID2.equals(currentHomePackage) ||
+                HOME_PACKAGE_ANDROID3.equals(currentHomePackage)) {
+            sShortcutBadger = new AndroidHomeBadger(context);
+        } else if (HOME_PACKAGE_APEX.equals(currentHomePackage)) {
+            sShortcutBadger = new ApexHomeBadger(context);
+        } else if (HOME_PACKAGE_ADW.equals(currentHomePackage)
+                || HOME_PACKAGE_ADW_EX.equals(currentHomePackage)) {
+            sShortcutBadger = new AdwHomeBadger(context);
+        } else if (HOME_PACKAGE_NOVA.equals(currentHomePackage)) {
+            sShortcutBadger = new NovaHomeBadger(context);
+        }
+
+
+        return sShortcutBadger;
+    }
+
     protected String getEntryActivityName() {
         ComponentName componentName = mContext.getPackageManager().getLaunchIntentForPackage(mContext.getPackageName()).getComponent();
         return componentName.getClassName();
diff --git a/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/impl/AndroidHomeBadger.java b/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/impl/AndroidHomeBadger.java
index 171d910..9d0b9e7 100644
--- a/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/impl/AndroidHomeBadger.java
+++ b/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/impl/AndroidHomeBadger.java
@@ -9,11 +9,7 @@ import me.leolin.shortcutbadger.ShortcutBadgeException;
 import me.leolin.shortcutbadger.ShortcutBadger;
 
 /**
- * Created with IntelliJ IDEA.
- * User: leolin
- * Date: 2013/11/14
- * Time: 下午7:15
- * To change this template use File | Settings | File Templates.
+ * @author Leo Lin
  */
 public class AndroidHomeBadger extends ShortcutBadger {
     private static final String CONTENT_URI = "content://com.android.launcher2.settings/favorites?notify=true";
diff --git a/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/impl/LGHomeBadger.java b/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/impl/LGHomeBadger.java
index 4876470..08d65a0 100644
--- a/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/impl/LGHomeBadger.java
+++ b/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/impl/LGHomeBadger.java
@@ -5,11 +5,7 @@ import android.content.Intent;
 import me.leolin.shortcutbadger.ShortcutBadger;
 
 /**
- * Created with IntelliJ IDEA.
- * User: leolin
- * Date: 2013/11/14
- * Time: 下午5:55
- * To change this template use File | Settings | File Templates.
+ * @author Leo Lin
  */
 public class LGHomeBadger extends ShortcutBadger {
 
diff --git a/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/impl/NewHtcHomeBadger.java b/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/impl/NewHtcHomeBadger.java
index e031067..6201b2d 100644
--- a/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/impl/NewHtcHomeBadger.java
+++ b/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/impl/NewHtcHomeBadger.java
@@ -7,7 +7,7 @@ import me.leolin.shortcutbadger.ShortcutBadgeException;
 import me.leolin.shortcutbadger.ShortcutBadger;
 
 /**
- * @author Leolin
+ * @author Leo Lin
  */
 public class NewHtcHomeBadger extends ShortcutBadger {
 
diff --git a/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/impl/SamsungHomeBadger.java b/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/impl/SamsungHomeBadger.java
index daa9f64..ea9f2c5 100644
--- a/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/impl/SamsungHomeBadger.java
+++ b/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/impl/SamsungHomeBadger.java
@@ -7,16 +7,14 @@ import android.database.Cursor;
 import android.net.Uri;
 import me.leolin.shortcutbadger.ShortcutBadgeException;
 import me.leolin.shortcutbadger.ShortcutBadger;
+import me.leolin.shortcutbadger.util.CloseHelper;
 
 /**
- * Created with IntelliJ IDEA.
- * User: leolin
- * Date: 2013/11/14
- * Time: 下午7:15
- * To change this template use File | Settings | File Templates.
+ * @author Leo Lin
  */
 public class SamsungHomeBadger extends ShortcutBadger {
     private static final String CONTENT_URI = "content://com.sec.badge/apps?notify=true";
+    private static final String[] CONTENT_PROJECTION = new String[]{"_id",};
 
     public SamsungHomeBadger(Context context) {
         super(context);
@@ -26,20 +24,29 @@ public class SamsungHomeBadger extends ShortcutBadger {
     protected void executeBadge(int badgeCount) throws ShortcutBadgeException {
         Uri mUri = Uri.parse(CONTENT_URI);
         ContentResolver contentResolver = mContext.getContentResolver();
-        Cursor cursor = contentResolver.query(mUri, new String[]{"_id",}, "package=?", new String[]{getContextPackageName()}, null);
-        if (cursor.moveToNext()) {
-            int id = cursor.getInt(0);
-            ContentValues contentValues = new ContentValues();
-            contentValues.put("badgecount", badgeCount);
-            contentResolver.update(mUri, contentValues, "_id=?", new String[]{String.valueOf(id)});
-        } else {
-            ContentValues contentValues = new ContentValues();
-            contentValues.put("package", getContextPackageName());
-            contentValues.put("class", getEntryActivityName());
-            contentValues.put("badgecount", badgeCount);
-            contentResolver.insert(mUri, contentValues);
+        Cursor cursor = null;
+        try {
+            cursor = contentResolver.query(mUri, CONTENT_PROJECTION, "package=?", new String[]{getContextPackageName()}, null);
+            if (cursor != null) {
+                while (cursor.moveToNext()) {
+                    int id = cursor.getInt(0);
+                    ContentValues contentValues = getContentValues(badgeCount);
+                    contentResolver.update(mUri, contentValues, "_id=?", new String[]{String.valueOf(id)});
+                }
+            } else {
+                ContentValues contentValues = getContentValues(badgeCount);
+                contentResolver.insert(mUri, contentValues);
+            }
+        } finally {
+            CloseHelper.close(cursor);
         }
+    }
 
-
+    private ContentValues getContentValues(int badgeCount) {
+        ContentValues contentValues = new ContentValues();
+        contentValues.put("package", getContextPackageName());
+        contentValues.put("class", getEntryActivityName());
+        contentValues.put("badgecount", badgeCount);
+        return contentValues;
     }
 }
diff --git a/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/impl/SonyHomeBadger.java b/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/impl/SonyHomeBadger.java
index b273e7b..d4da54c 100644
--- a/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/impl/SonyHomeBadger.java
+++ b/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/impl/SonyHomeBadger.java
@@ -5,11 +5,7 @@ import android.content.Intent;
 import me.leolin.shortcutbadger.ShortcutBadger;
 
 /**
- * Created with IntelliJ IDEA.
- * User: leolin
- * Date: 2013/11/14
- * Time: 下午5:55
- * To change this template use File | Settings | File Templates.
+ * @author Leo Lin
  */
 public class SonyHomeBadger extends ShortcutBadger {
 
diff --git a/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/impl/hTCHomeBadger.java b/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/impl/hTCHomeBadger.java
deleted file mode 100644
index bf22710..0000000
--- a/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/impl/hTCHomeBadger.java
+++ /dev/null
@@ -1,58 +0,0 @@
-package me.leolin.shortcutbadger.impl;
-
-import android.content.ContentResolver;
-import android.content.ContentValues;
-import android.content.Context;
-import android.database.Cursor;
-import android.net.Uri;
-import me.leolin.shortcutbadger.ShortcutBadgeException;
-import me.leolin.shortcutbadger.ShortcutBadger;
-import me.leolin.shortcutbadger.util.ImageUtil;
-
-/**
- * Created with IntelliJ IDEA.
- * User: leolin
- * Date: 2013/11/14
- * Time: 下午7:15
- * To change this template use File | Settings | File Templates.
- */
-@Deprecated
-public class hTCHomeBadger extends ShortcutBadger {
-    private static final String CONTENT_URI = "content://com.htc.launcher.settings/favorites?notify=true";
-
-    public hTCHomeBadger(Context context) {
-        super(context);
-    }
-
-    @Override
-    protected void executeBadge(int badgeCount) throws ShortcutBadgeException {
-        ContentResolver contentResolver = mContext.getContentResolver();
-        Uri mUri = Uri.parse(CONTENT_URI);
-        String appName = mContext.getResources().getText(mContext.getResources().getIdentifier("app_name",
-                "string", getContextPackageName())).toString();
-
-        boolean supportNotifyCount = true;
-        try {
-            Cursor cursor = contentResolver.query(mUri, new String[]{"notifyCount"}, "title=?", new String[]{appName}, null);
-        } catch (Throwable e) {
-            supportNotifyCount = false;
-        }
-
-        if (supportNotifyCount) {
-            ContentValues contentValues = new ContentValues();
-            contentValues.put("notifyCount", badgeCount);
-            contentResolver.update(mUri, contentValues, "title=?", new String[]{appName});
-        } else {
-            byte[] bytes = ImageUtil.drawBadgeOnAppIcon(mContext, badgeCount);
-
-
-            ContentValues contentValues = new ContentValues();
-            contentValues.put("iconType", 1);
-            contentValues.put("itemType", 1);
-            contentValues.put("icon", bytes);
-            contentResolver.update(mUri, contentValues, "title=?", new String[]{appName});
-        }
-
-
-    }
-}
diff --git a/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/util/CloseHelper.java b/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/util/CloseHelper.java
new file mode 100644
index 0000000..048eba1
--- /dev/null
+++ b/ShortcutBadger/src/main/java/me/leolin/shortcutbadger/util/CloseHelper.java
@@ -0,0 +1,14 @@
+package me.leolin.shortcutbadger.util;
+
+import android.database.Cursor;
+
+/**
+ * @author leolin
+ */
+public class CloseHelper {
+    public static void close(Cursor cursor) {
+        if (cursor != null && !cursor.isClosed()) {
+            cursor.close();
+        }
+    }
+}
diff --git a/build.gradle b/build.gradle
index 0a444ef..72ffcf7 100644
--- a/build.gradle
+++ b/build.gradle
@@ -4,7 +4,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:0.12.2'
+        classpath 'com.android.tools.build:gradle:1.0.+'
         classpath 'com.jakewharton.sdkmanager:gradle-plugin:0.12.+'
     }
 }
@@ -17,7 +17,7 @@ subprojects{
             jcenter()
         }
         dependencies {
-            classpath 'com.android.tools.build:gradle:0.12.2'
+            classpath 'com.android.tools.build:gradle:1.0.+'
             classpath 'com.jakewharton.sdkmanager:gradle-plugin:0.12.+'
         }
     }
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 0087cd3..2322723 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 7a73d23..65681fa 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,5 @@
-#Fri Oct 10 21:55:32 CST 2014
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-1.12-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.2-bin.zip
diff --git a/proguard-rules.pro b/proguard-rules.pro
new file mode 100644
index 0000000..9f2333c
--- /dev/null
+++ b/proguard-rules.pro
@@ -0,0 +1,19 @@
+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in /home/mik/sdk/android-sdk-linux/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the proguardFiles
+# directive in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+-dontshrink
\ No newline at end of file
diff --git a/src/main/java/com/shortcutBadger/impl/CloseHelper.java b/src/main/java/com/shortcutBadger/impl/CloseHelper.java
new file mode 100644
index 0000000..ca30ab7
--- /dev/null
+++ b/src/main/java/com/shortcutBadger/impl/CloseHelper.java
@@ -0,0 +1,11 @@
+package com.shortcutBadger.impl;
+
+import android.database.Cursor;
+
+public class CloseHelper {
+    public static void close(Cursor cursor) {
+        if (cursor != null && !cursor.isClosed()) {
+            cursor.close();
+        }
+    }
+}