diff --git a/replugin-sample/plugin/plugin-demo1/app/src/main/java/com/qihoo360/replugin/sample/demo1/MainActivity.java b/replugin-sample/plugin/plugin-demo1/app/src/main/java/com/qihoo360/replugin/sample/demo1/MainActivity.java
index f842244..ac473db 100644
--- a/replugin-sample/plugin/plugin-demo1/app/src/main/java/com/qihoo360/replugin/sample/demo1/MainActivity.java
+++ b/replugin-sample/plugin/plugin-demo1/app/src/main/java/com/qihoo360/replugin/sample/demo1/MainActivity.java
@@ -17,8 +17,11 @@
 package com.qihoo360.replugin.sample.demo1;
 
 import android.app.Activity;
+import android.app.Dialog;
 import android.content.ContentValues;
+import android.content.Context;
 import android.content.Intent;
+import android.content.res.Resources;
 import android.net.Uri;
 import android.os.Bundle;
 import android.os.IBinder;
@@ -41,6 +44,8 @@ import com.qihoo360.replugin.sample.demo1.activity.theme.ThemeDialogActivity;
 import com.qihoo360.replugin.sample.demo1.service.PluginDemoService1;
 import com.qihoo360.replugin.sample.demo2.IDemo2;
 
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -179,6 +184,42 @@ public class MainActivity extends Activity {
         // =========
         // Communication
         // =========
+        mItems.add(new TestItem("ClassLoader: Use demo2's class", new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                // TODO 近期会添加RePlugin.fetchClass方法，无需catch一堆
+                ClassLoader cl = RePlugin.fetchClassLoader("demo2");
+                if (cl == null) {
+                    Toast.makeText(v.getContext(), "Not install Demo2", Toast.LENGTH_SHORT).show();
+                    return;
+                }
+
+                try {
+                    Class clz = cl.loadClass("com.qihoo360.replugin.sample.demo2.MainApp");
+                    Method m = clz.getDeclaredMethod("helloFromDemo1", Context.class, String.class);
+                    m.invoke(null, v.getContext(), "Demo1");
+                } catch (ClassNotFoundException e) {
+                    // 有可能Demo2根本没有这个类，直接返回
+                    Toast.makeText(v.getContext(), "MainApp not found", Toast.LENGTH_SHORT).show();
+                    e.printStackTrace();
+                } catch (NoSuchMethodException e) {
+                    // 有可能没有这个方法
+                    Toast.makeText(v.getContext(), "helloFromDemo1() not found", Toast.LENGTH_SHORT).show();
+                    e.printStackTrace();
+                } catch (IllegalAccessException e) {
+                    // 也有可能不允许你访问
+                    e.printStackTrace();
+                } catch (InvocationTargetException e) {
+                    e.printStackTrace();
+                }
+            }
+        }));
+        mItems.add(new TestItem("Fragment: Use demo2", new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                // TODO 志伟请搞定这里，谢谢！
+            }
+        }));
         mItems.add(new TestItem("Binder: Fast-Fetch", new View.OnClickListener() {
             @Override
             public void onClick(View v) {
diff --git a/replugin-sample/plugin/plugin-demo2/app/src/main/java/com/qihoo360/replugin/sample/demo2/MainApp.java b/replugin-sample/plugin/plugin-demo2/app/src/main/java/com/qihoo360/replugin/sample/demo2/MainApp.java
index 7bd3077..670b5d3 100644
--- a/replugin-sample/plugin/plugin-demo2/app/src/main/java/com/qihoo360/replugin/sample/demo2/MainApp.java
+++ b/replugin-sample/plugin/plugin-demo2/app/src/main/java/com/qihoo360/replugin/sample/demo2/MainApp.java
@@ -17,6 +17,8 @@
 package com.qihoo360.replugin.sample.demo2;
 
 import android.app.Application;
+import android.content.Context;
+import android.widget.Toast;
 
 import com.qihoo360.replugin.RePlugin;
 
@@ -31,4 +33,8 @@ public class MainApp extends Application {
 
         RePlugin.registerPluginBinder("demo2test", new Demo2Impl());
     }
+
+    public static void helloFromDemo1(Context c, String text) {
+        Toast.makeText(c, "Demo2: hello! " + text, Toast.LENGTH_SHORT).show();
+    }
 }
diff --git a/replugin-sample/plugin/plugin-demo2/app/src/main/res/layout/from_demo1.xml b/replugin-sample/plugin/plugin-demo2/app/src/main/res/layout/from_demo1.xml
new file mode 100644
index 0000000..dff6661
--- /dev/null
+++ b/replugin-sample/plugin/plugin-demo2/app/src/main/res/layout/from_demo1.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Hello! Demo2" />
+
+</LinearLayout>