diff --git a/GameSDKDemo/build.gradle b/GameSDKDemo/build.gradle
index d479f3f..5be4bb7 100644
--- a/GameSDKDemo/build.gradle
+++ b/GameSDKDemo/build.gradle
@@ -79,5 +79,5 @@ dependencies {
     //VK
     implementation 'com.gumptech:VKsdk:1.5.4'
 //        implementation project(':GameSDK')
-    implementation 'com.gumptech.sdk:GameSDK:4.5.0'
+    implementation 'com.gumptech.sdk:GameSDK:4.5.3'
 }
diff --git a/GameSDKDemo/src/main/AndroidManifest.xml b/GameSDKDemo/src/main/AndroidManifest.xml
index a3dede0..11ab1c7 100644
--- a/GameSDKDemo/src/main/AndroidManifest.xml
+++ b/GameSDKDemo/src/main/AndroidManifest.xml
@@ -24,7 +24,7 @@
             android:name="com.gumptech.sdk.demo.MainActivity"
             android:configChanges="orientation|screenSize|keyboardHidden|keyboard|screenLayout"
             android:label="@string/app_name"
-            android:screenOrientation="portrait">
+            android:screenOrientation="landscape">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
 
@@ -41,8 +41,8 @@
         <activity
             android:name="com.gumptech.sdk.PaymentActivity"
             android:configChanges="orientation|screenSize|keyboardHidden|keyboard|screenLayout"
-            android:theme="@android:style/Theme.Light.NoTitleBar"
-            android:launchMode="singleTask">
+            android:launchMode="singleTask"
+            android:theme="@android:style/Theme.Light.NoTitleBar">
             <intent-filter>
                 <category android:name="android.intent.category.DEFAULT"/>
 
diff --git a/GameSDKDemo/src/main/java/com/gumptech/sdk/demo/MainActivity.java b/GameSDKDemo/src/main/java/com/gumptech/sdk/demo/MainActivity.java
index 65238ba..9f096a6 100644
--- a/GameSDKDemo/src/main/java/com/gumptech/sdk/demo/MainActivity.java
+++ b/GameSDKDemo/src/main/java/com/gumptech/sdk/demo/MainActivity.java
@@ -79,6 +79,7 @@ public class MainActivity extends Activity implements PurchaseCallback {
             }
         });
 
+
         GumpSDK.getSettings().setDebug(false);
         /**
          * 设置否是打印debug日志
@@ -152,7 +153,8 @@ public class MainActivity extends Activity implements PurchaseCallback {
                         userType = "Line登录";
                         break;
                 }
-                userInfo.setText(" Userid:" + user.getUid() + "\n accountType:(" + user.getAccountType() + ") " + userType + "\n sessionKey:" + user.getSessionKey().getToken());
+                userInfo.setText(" Userid:" + user.getUid() + "\n accountType:(" + user.getAccountType() + ") " + userType + "\n sessionKey:" + user.getSessionKey()
+                        .getToken());
                 btnLoginOrLogout.setText("Logout");
                 btnLoginOrLogout.setTag(1);
             }
diff --git a/GameSDKDemo/src/main/res/layout/activity_main.xml b/GameSDKDemo/src/main/res/layout/activity_main.xml
index 71c2a2d..e9ca526 100644
--- a/GameSDKDemo/src/main/res/layout/activity_main.xml
+++ b/GameSDKDemo/src/main/res/layout/activity_main.xml
@@ -40,4 +40,5 @@
         android:backgroundTint="@color/g_color"
         android:text="pay"/>
 
+
 </LinearLayout>
\ No newline at end of file
diff --git a/README.md b/README.md
index 1e36709..d9acf35 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # Gump SDK 4 for Android接入文档
 
-V4.5.1       
-2018年7月13日
+V4.5.3       
+2018年8月21日
 
 ## 版本概述
 
@@ -19,7 +19,7 @@ V4.5.1
     	}
     }
     dependencies {
-        implementation 'com.gumptech.sdk:GameSDK:4.5.1'
+        implementation 'com.gumptech.sdk:GameSDK:4.5.3'
     }
     
      
@@ -215,23 +215,23 @@ InitializeCallback为初始化回调接口,此接口只有一个回调方法init
         
 ## 第二章 常量字段与代码
 ### 1.第三方登录平台(third_plat)
-	|         常量字段               |    说明      |
+	|         常量字段                |    说明       |
 	|--------------------------------|--------------|
-	|SDKSettings.THIRD_SUPPORT_FB    |Facebook登录  |
-	|SDKSettings.THIRD_SUPPORT_GOOGLE|Google登录    |
-	|SDKSettings.THIRD_SUPPORT_LINE  |Line登录      |
-	|SDKSettings.THIRD_SUPPORT_VK    |VK登录        |
-	|SDKSettings.THIRD_SUPPORT_WECHAT|微信登录       |
+	|SDKSettings.THIRD_SUPPORT_FB    | Facebook登录  |
+	|SDKSettings.THIRD_SUPPORT_GOOGLE| Google登录    |
+	|SDKSettings.THIRD_SUPPORT_LINE  | Line登录      |
+	|SDKSettings.THIRD_SUPPORT_VK    | VK登录        |
+	|SDKSettings.THIRD_SUPPORT_WECHAT| 微信登录      |
 ### 2.登录账户类型
-	|               常量字段              |     说明    |
-	|-------------------------------------|-------------|
-	|GumpPreference.ACCOUNT_TYPE_FB       |Facebook用户 |
-	|GumpPreference.ACCOUNT_TYPE_REG      |Gump注册用户 |
-	|GumpPreference.ACCOUNT_TYPE_QUICK_REG|快速注册用户 |
-	|GumpPreference.ACCOUNT_TYPE_GOOGLE   |Google用户   |
-	|GumpPreference.ACCOUNT_TYPE_LINE     |Line用户     |
-	|GumpPreference.ACCOUNT_TYPE_VK       |VK用户       |
-	|GumpPreference.ACCOUNT_TYPE_WECHAT   |微信用户      |
+	|               常量字段               |      说明     |
+	|-------------------------------------|--------------|
+	|GumpPreference.ACCOUNT_TYPE_FB       | Facebook用户  |
+	|GumpPreference.ACCOUNT_TYPE_REG      | Gump注册用户  |
+	|GumpPreference.ACCOUNT_TYPE_QUICK_REG| 快速注册用户   |
+	|GumpPreference.ACCOUNT_TYPE_GOOGLE   | Google用户    |
+	|GumpPreference.ACCOUNT_TYPE_LINE     | Line用户      |
+	|GumpPreference.ACCOUNT_TYPE_VK       | VK用户        |
+	|GumpPreference.ACCOUNT_TYPE_WECHAT   | 微信用户      |
 
 ## 第三章 常见问题      
 ### 问题1： 如何避免混淆对SDK的影响？