diff --git a/app/build.gradle b/app/build.gradle
index f62f141..14b2299 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -26,6 +26,7 @@
 dependencies {
     implementation fileTree(include: ['*.jar'], dir: 'libs')
     implementation 'com.android.support:appcompat-v7:27.1.1'
+    implementation 'com.android.support.constraint:constraint-layout:1.1.0'
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'com.android.support.test:runner:1.0.2'
     androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 0a17463..6ec599f 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -1,6 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="org.ntlab.radishforandroidstudio">
 
+    <uses-permission android:name="android.permission.CAMERA" />
+
+    <uses-feature
+        android:name="android.hardware.camera"
+        android:required="false" />
+    <uses-feature
+        android:name="android.hardware.camera.autofocus"
+        android:required="false" />
+
     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
@@ -9,21 +19,31 @@
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
 
-
+        <!--無効化の際に<activity></activity>コメントアウトすればいい-->
+        <!--start-->
         <activity
-            android:name="org.ntlab.radishforandroidstudio.sample.SampleGameActivity"
+            android:name=".sample.SampleGameActivity"
             android:label="@string/app_name"
             android:screenOrientation="landscape">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
 
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <!--end-->
+
+        <!--start-->
+        <activity android:name=".cactusClient.MainActivity"
+            android:label="@string/app_name"
+            android:screenOrientation="landscape">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <!--end-->
 
     </application>
-    <uses-permission android:name="android.permission.CAMERA"/>
-    <uses-feature android:name="android.hardware.camera" android:required="false"/>
-    <uses-feature android:name="android.hardware.camera.autofocus" android:required="false"/>
 
-</manifest>
+</manifest>
\ No newline at end of file
diff --git a/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/MainActivity.java b/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/MainActivity.java
new file mode 100644
index 0000000..909b56b
--- /dev/null
+++ b/app/src/main/java/org/ntlab/radishforandroidstudio/cactusClient/MainActivity.java
@@ -0,0 +1,15 @@
+package org.ntlab.radishforandroidstudio.cactusClient;
+
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+
+import org.ntlab.radishforandroidstudio.R;
+
+public class MainActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+    }
+}
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
new file mode 100644
index 0000000..b012c16
--- /dev/null
+++ b/app/src/main/res/layout/activity_main.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".cactusClient.MainActivity">
+
+</android.support.constraint.ConstraintLayout>
\ No newline at end of file