diff --git a/build.gradle b/build.gradle
index 1e7ed07..0a57a8c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,6 +5,6 @@ buildscript {
     dependencies {
         // Android plugin for gradle
         // http://google.github.io/android-gradle-dsl
-        classpath 'com.android.tools.build:gradle:1.5.0'
+        classpath 'com.android.tools.build:gradle:2.1.0'
     }
 }
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 04e72a6..14f20b1 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Thu Jul 06 10:31:50 CST 2017
+#Tue Dec 05 15:39:40 CST 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.11-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.10-all.zip
diff --git a/keyboardservice/build.gradle b/keyboardservice/build.gradle
index e1e8f09..30c7165 100644
--- a/keyboardservice/build.gradle
+++ b/keyboardservice/build.gradle
@@ -8,8 +8,8 @@ android {
         applicationId 'com.android.adbkeyboard'
         minSdkVersion 15
         targetSdkVersion 22
-        versionCode 1
-        versionName "1.1"
+        versionCode 3
+        versionName "2.1"
     }
 }
 
diff --git a/keyboardservice/src/main/AndroidManifest.xml b/keyboardservice/src/main/AndroidManifest.xml
index 90723ee..6e1b9c3 100644
--- a/keyboardservice/src/main/AndroidManifest.xml
+++ b/keyboardservice/src/main/AndroidManifest.xml
@@ -1,7 +1,7 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.android.adbkeyboard"
-    android:versionCode="1"
-    android:versionName="1.0" >
+    android:versionCode="2"
+    android:versionName="2.0" >
 
     <uses-sdk
         android:minSdkVersion="8"
@@ -29,7 +29,16 @@
                 <action android:name="android.view.InputMethod" />
             </intent-filter>
             <meta-data android:name="android.view.im" android:resource="@xml/methods" />
-        </service>    
+        </service>
+
+        <service
+            android:name=".ProcessInfoService"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="com.android.adbkeyboard.ProcessInfo"/>
+            </intent-filter>
+        </service>
+
     </application>
 
 </manifest>
\ No newline at end of file
diff --git a/keyboardservice/src/main/java/com/android/adbkeyboard/ProcessInfoService.java b/keyboardservice/src/main/java/com/android/adbkeyboard/ProcessInfoService.java
new file mode 100644
index 0000000..80976c8
--- /dev/null
+++ b/keyboardservice/src/main/java/com/android/adbkeyboard/ProcessInfoService.java
@@ -0,0 +1,75 @@
+package com.android.adbkeyboard;
+
+/**
+ * Created by andrewleo on 2017/11/1.
+ */
+
+import java.io.BufferedWriter;
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.util.List;
+
+import android.app.IntentService;
+import android.content.Intent;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManager;
+import android.os.Bundle;
+import android.util.Log;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+public class ProcessInfoService extends IntentService {
+
+    private static final String PROCESS_INFO_ACTION = "com.android.adbkeyboard.ProcessInfo";
+    private static final String DEFAULT_FILE_PATH = "/data/local/tmp/appinfos";
+
+    public ProcessInfoService() {
+        super("ProcessInfoService");
+    }
+
+    @Override
+    protected void onHandleIntent(Intent intent) {
+        if (intent != null) {
+            Bundle bundle = intent.getExtras();
+            String fileToSaved = (bundle != null) ? bundle.getString("fileToSave",
+                    DEFAULT_FILE_PATH) : DEFAULT_FILE_PATH;
+            try {
+                switch (intent.getAction()) {
+                    case PROCESS_INFO_ACTION:
+                        JSONArray jsonArray = new JSONArray();
+                        PackageManager pm = this.getPackageManager();
+                        for (ApplicationInfo appinfo : getAppInfos()) {
+                            JSONObject jsonObject = new JSONObject();
+                            jsonObject.put(appinfo.loadLabel(pm).toString(), appinfo.processName);
+                            jsonArray.put(jsonObject);
+                        }
+                        saveToFile(fileToSaved, jsonArray.toString());
+                }
+            } catch (Exception e) {
+                Log.e("adbKeyBoard", e.getMessage());
+                e.printStackTrace();
+            }
+        }
+
+    }
+
+    private void saveToFile(String filePath, String content) throws IOException {
+        File file = new File(filePath);
+        if (!file.exists()) {
+            file.createNewFile();
+        }
+        FileWriter fw = new FileWriter(file);
+        BufferedWriter bw = new BufferedWriter(fw);
+        bw.write(content);
+        bw.close();
+    }
+
+    private List<ApplicationInfo> getAppInfos() {
+        PackageManager pm = getApplicationContext().getPackageManager();
+        List<ApplicationInfo> appList = pm
+                .getInstalledApplications(PackageManager.GET_UNINSTALLED_PACKAGES);
+        return appList;
+    }
+}
diff --git a/keyboardservice/src/main/res/layout/keyboard.xml b/keyboardservice/src/main/res/layout/keyboard.xml
index 71fc64a..56e995b 100644
--- a/keyboardservice/src/main/res/layout/keyboard.xml
+++ b/keyboardservice/src/main/res/layout/keyboard.xml
@@ -7,31 +7,11 @@
     <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        android:orientation="vertical">
-        <Button
-            android:id="@+id/button1"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="Android从入门到放弃"
-            android:textSize="12sp"/>
-
-        <Button
-            android:id="@+id/button2"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="Java从入门到放弃" />
-
-        <Button
-            android:id="@+id/button3"
+        android:orientation="vertical"
+        android:background="#808080">
+        <View
             android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="C#从入门到怀疑人生" />
-
-        <Button
-            android:id="@+id/button4"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="OC从入门到怀疑人生" />
+            android:layout_height="200dp"/>
 
         <Button
             android:id="@+id/button5"