1.优化游戏介绍页面退出游戏弹框确认功能

workbenches/src/main/AndroidManifest.xml

@@ -16,7 +16,6 @@
         <activity
             android:name=".freetraining.FreeTrainActivity"
             android:configChanges="keyboardHidden|orientation|screenSize"
-            android:launchMode="singleInstance"
             android:screenOrientation="landscape"
             android:windowSoftInputMode="adjustResize|adjustPan" />
         <activity

workbenches/src/main/manifest/AndroidManifest.xml

@@ -17,7 +17,6 @@
             android:name=".freetraining.FreeTrainActivity"
             android:configChanges="keyboardHidden|orientation|screenSize"
             android:screenOrientation="landscape"
-            android:launchMode="singleInstance"
             android:windowSoftInputMode="adjustResize|adjustPan" />
         <activity
             android:name=".leisurebrain.LeisureBrainActivity"