diff --git "a/doc/\346\216\250\345\271\277\345\221\230\351\241\271\347\233\256Sdk for android\344\275\277\347\224\250\350\257\264\346\230\216.md" "b/doc/\346\216\250\345\271\277\345\221\230\351\241\271\347\233\256Sdk for android\344\275\277\347\224\250\350\257\264\346\230\216.md"
index cc766bd..a2ee008 100644
--- "a/doc/\346\216\250\345\271\277\345\221\230\351\241\271\347\233\256Sdk for android\344\275\277\347\224\250\350\257\264\346\230\216.md"	
+++ "b/doc/\346\216\250\345\271\277\345\221\230\351\241\271\347\233\256Sdk for android\344\275\277\347\224\250\350\257\264\346\230\216.md"	
@@ -20,12 +20,20 @@ Help==>About Eclips
 ### 3. 代码实现
 #### 1、	修改AndroidManifest.xml文件
 	首先添加必要的权限，如下所示：
- <uses-permission android:name="android.permission.INTERNET" />
-    <uses-permission android:name="android.permission.WRITE_SETTINGS" />
+	
+    <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.READ_PHONE_STATE" />
     <uses-permission android:name="android.permission.BLUETOOTH" />
-<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
-其次注册相应的Activity，具体如下：
+    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
+    <uses-permission android:name="android.permission.WRITE_SETTINGS"/>
+    <uses-permission android:name="android.permission.GET_ACCOUNTS"/>
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
+    <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/>
+    <uses-permission android:name="android.permission.SEND_SMS"/>
+   
+    <!-- VERY IMPORTANT! Don't forget this permission, or in-app billing won't work. -->
+    <uses-permission android:name="com.android.vending.BILLING" />其次注册相应的Activity，具体如下：
   <activity
             android:name="com.gumptech.promoter.activity.PromoterActivity"
             android:label="@string/app_name"