diff --git a/Android/app/build.gradle b/Android/app/build.gradle
index 21194703..95261a33 100644
--- a/Android/app/build.gradle
+++ b/Android/app/build.gradle
@@ -28,4 +28,5 @@ dependencies {
     implementation 'com.android.support:appcompat-v7:28.0.0'
     implementation 'com.android.support.constraint:constraint-layout:1.1.3'
     implementation project(':doric')
+    implementation 'org.nanohttpd:nanohttpd:2.3.1'
 }
diff --git a/Android/app/src/main/AndroidManifest.xml b/Android/app/src/main/AndroidManifest.xml
index b0b496b6..e56409b3 100644
--- a/Android/app/src/main/AndroidManifest.xml
+++ b/Android/app/src/main/AndroidManifest.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.github.penfeizhou.doricdemo">
-
+    <uses-permission android:name="android.permission.INTERNET"/>
     <application
         android:name="com.github.penfeizhou.doricdemo.MyApplication"
         android:allowBackup="true"
diff --git a/Android/app/src/main/java/com/github/penfeizhou/doricdemo/LocalServer.java b/Android/app/src/main/java/com/github/penfeizhou/doricdemo/LocalServer.java
new file mode 100644
index 00000000..56dd53e3
--- /dev/null
+++ b/Android/app/src/main/java/com/github/penfeizhou/doricdemo/LocalServer.java
@@ -0,0 +1,40 @@
+package com.github.penfeizhou.doricdemo;
+
+import android.content.Context;
+import android.content.res.AssetManager;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+import fi.iki.elonen.NanoHTTPD;
+
+/**
+ * @Description: com.github.penfeizhou.doricdemo
+ * @Author: pengfei.zhou
+ * @CreateDate: 2019-08-03
+ */
+public class LocalServer extends NanoHTTPD {
+    private final Context context;
+
+    public LocalServer(Context context, int port) {
+        super(port);
+        this.context = context;
+    }
+
+    @Override
+    public Response serve(IHTTPSession session) {
+        String url = session.getUri();
+        if (url.startsWith("/assets/")) {
+            String fileName = url.substring("/assets/".length());
+            AssetManager assetManager = context.getAssets();
+            try {
+                InputStream inputStream = assetManager.open(fileName);
+                return newFixedLengthResponse(Response.Status.OK, "text/plain", inputStream, inputStream.available());
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+
+        return newFixedLengthResponse(NanoHTTPD.Response.Status.OK, "text/html", "HelloWorld");
+    }
+}
diff --git a/Android/app/src/main/java/com/github/penfeizhou/doricdemo/MainActivity.java b/Android/app/src/main/java/com/github/penfeizhou/doricdemo/MainActivity.java
index cfa240c0..c051824a 100644
--- a/Android/app/src/main/java/com/github/penfeizhou/doricdemo/MainActivity.java
+++ b/Android/app/src/main/java/com/github/penfeizhou/doricdemo/MainActivity.java
@@ -5,10 +5,13 @@ import android.os.Bundle;
 import android.view.ViewGroup;
 import android.widget.FrameLayout;
 
+import com.github.penfeizhou.doric.Doric;
 import com.github.penfeizhou.doric.DoricContext;
 import com.github.penfeizhou.doric.utils.DoricUtils;
 import com.github.pengfeizhou.jscore.JSONBuilder;
 
+import java.io.IOException;
+
 
 public class MainActivity extends AppCompatActivity {
 
@@ -22,6 +25,13 @@ public class MainActivity extends AppCompatActivity {
                 .put("height", ViewGroup.LayoutParams.MATCH_PARENT));
         doricContext.callEntity("log");
         doricContext.getRootNode().setRootView((FrameLayout) findViewById(R.id.root));
+        Doric.connectDevKit("wss://192.168.11.38:7777");
+        LocalServer localServer = new LocalServer(getApplicationContext(), 8910);
+        try {
+            localServer.start();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
     }
 
 }
diff --git a/js-framework/demo.ts b/js-framework/demo.ts
index f1e80a35..e5320b44 100644
--- a/js-framework/demo.ts
+++ b/js-framework/demo.ts
@@ -41,10 +41,10 @@ class CounterView extends ViewHolder {
             offsetY: 10,
         }
         vlayout.shadow = {
-            color: Color.parse("#00ff00"),
+            color: Color.parse("#ffff00"),
             opacity: 0.5,
             radius: 20,
-            offsetX: -10,
+            offsetX: 10,
             offsetY: 10,
         }
         vlayout.corners = 20