diff --git a/GaiaXAnalyze/GXAnalyzeAndroid/.classpath b/GaiaXAnalyze/GXAnalyzeAndroid/.classpath
index 4a04201ca..eb19361b5 100644
--- a/GaiaXAnalyze/GXAnalyzeAndroid/.classpath
+++ b/GaiaXAnalyze/GXAnalyzeAndroid/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11/"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8/"/>
 	<classpathentry kind="con" path="org.eclipse.buildship.core.gradleclasspathcontainer"/>
 	<classpathentry kind="output" path="bin/default"/>
 </classpath>
diff --git a/GaiaXAndroidClientToStudio/src/main/java/com/alibaba/gaiax/studio/GXClientToStudio.kt b/GaiaXAndroidClientToStudio/src/main/java/com/alibaba/gaiax/studio/GXClientToStudio.kt
index 51a0d6005..505cd58c5 100644
--- a/GaiaXAndroidClientToStudio/src/main/java/com/alibaba/gaiax/studio/GXClientToStudio.kt
+++ b/GaiaXAndroidClientToStudio/src/main/java/com/alibaba/gaiax/studio/GXClientToStudio.kt
@@ -57,11 +57,14 @@ class GXClientToStudio {
 
     fun init(context: Context) {
         applicationContext = context.applicationContext
-        socketHelper = GXSocket()
+        if (socketHelper == null) {
+            socketHelper = GXSocket()
+        }
     }
 
     fun destroy() {
         socketHelper?.disconnectToServer()
+        socketHelper = null
     }
 
     fun manualConnect(context: Context, params: JSONObject) {
diff --git a/GaiaXAndroidDemo/app/src/main/kotlin/com/alibaba/gaiax/demo/MainActivity.kt b/GaiaXAndroidDemo/app/src/main/kotlin/com/alibaba/gaiax/demo/MainActivity.kt
index 7a6e367c4..c9002bb1e 100644
--- a/GaiaXAndroidDemo/app/src/main/kotlin/com/alibaba/gaiax/demo/MainActivity.kt
+++ b/GaiaXAndroidDemo/app/src/main/kotlin/com/alibaba/gaiax/demo/MainActivity.kt
@@ -44,31 +44,27 @@ class MainActivity : AppCompatActivity() {
 
         GXClientToStudio.instance.init(applicationContext)
 
-        GXRegisterCenter.instance
-            .registerExtensionExpression(GXExtensionMultiVersionExpression())
-
-        GXRegisterCenter.instance
-            .registerExtensionException(object :
-                GXRegisterCenter.GXIExtensionException {
-                override fun exception(exception: Exception) {
-                    exception.printStackTrace()
-                }
-            })
+        GXRegisterCenter.instance.registerExtensionExpression(GXExtensionMultiVersionExpression())
+
+        GXRegisterCenter.instance.registerExtensionException(object :
+            GXRegisterCenter.GXIExtensionException {
+            override fun exception(exception: Exception) {
+                exception.printStackTrace()
+            }
+        })
 
-        GXRegisterCenter.instance
-            .registerExtensionTemplateSource(GXManualPushSource.instance, 101)
+        GXRegisterCenter.instance.registerExtensionTemplateSource(GXManualPushSource.instance, 101)
             .registerExtensionTemplateSource(GXFastPreviewSource.instance, 102)
 
-        GXRegisterCenter.instance
-            .registerExtensionFontFamily(object :
-                GXRegisterCenter.GXIExtensionFontFamily {
-                override fun fontFamily(fontFamilyName: String): Typeface? {
-                    if (fontFamilyName == "iconfont") {
-                        return Typeface.createFromAsset(assets, "$fontFamilyName.ttf")
-                    }
-                    return null
+        GXRegisterCenter.instance.registerExtensionFontFamily(object :
+            GXRegisterCenter.GXIExtensionFontFamily {
+            override fun fontFamily(fontFamilyName: String): Typeface? {
+                if (fontFamilyName == "iconfont") {
+                    return Typeface.createFromAsset(assets, "$fontFamilyName.ttf")
                 }
-            })
+                return null
+            }
+        })
 
         findViewById<AppCompatButton>(R.id.fastpreview)?.setOnClickListener {
             val intent = Intent(MainActivity@ this, GXQRCodeActivity::class.java)