diff --git a/GameSDKSample/AndroidManifest.xml b/GameSDKSample/AndroidManifest.xml
index 5e89f12..d1c4481 100644
--- a/GameSDKSample/AndroidManifest.xml
+++ b/GameSDKSample/AndroidManifest.xml
@@ -41,6 +41,7 @@
             android:name="com.gumptech.sdk.ContainerActivity"
             android:configChanges="orientation|screenSize|keyboardHidden|keyboard|screenLayout"
             android:windowSoftInputMode="stateAlwaysHidden|adjustPan"
+            android:launchMode="singleTask"
             android:theme="@style/Theme.TransparentWin" >
         </activity>
         <activity
diff --git a/doc/AndroidDocument.md b/doc/AndroidDocument.md
index e879b06..73bf6ae 100644
--- a/doc/AndroidDocument.md
+++ b/doc/AndroidDocument.md
@@ -78,6 +78,7 @@ Help==>About Eclips点击Android对应的图标就可以查看版本了.
         android:name="com.gumptech.sdk.ContainerActivity"
         android:configChanges="orientation|screenSize|keyboardHidden|keyboard|screenLayout"
         android:windowSoftInputMode="stateAlwaysHidden|adjustPan"
+	android:launchMode="singleTask"
         android:theme="@style/Theme.TransparentWin" >
     </activity>
     <activity