diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 4c3cd5d..b0b93df 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -3,24 +3,22 @@
     xmlns:tools="http://schemas.android.com/tools"
     package="com.example.cosmosclient">
     <!-- ここからバーコードリーダーのアクセス許可 -->
-    <uses-permission android:name="android.permission.CAMERA"/>
-    <uses-permission android:name="android.permission.INTERNET"/>
-    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
-    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
-
     <application
         android:name=".app.Cosmos"
-        android:networkSecurityConfig="@xml/network_security_config"
         android:allowBackup="true"
         android:hardwareAccelerated="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
+        android:networkSecurityConfig="@xml/network_security_config"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
         <activity
+            android:name=".views.DisplayGroupIDActivity"
+            android:label="グループIDを表示する" />
+        <activity
             android:name=".views.CreateGroupActivity"
-            android:label="グループ作成"></activity>
+            android:label="グループ作成" />
         <activity
             android:name=".views.JoinGroupByIDActivity"
             android:label="IDでグループに入る" />
@@ -34,7 +32,7 @@
         <activity
             android:name=".views.QRcodeReadingActivity"
             android:screenOrientation="portrait"
-            tools:replace="screenOrientation"></activity>
+            tools:replace="screenOrientation" />
         <activity
             android:name=".views.SigninActivity"
             android:theme="@style/AppTheme.NoActionBar">
@@ -49,7 +47,7 @@
             android:theme="@style/AppTheme.NoActionBar" />
         <activity
             android:name="com.theartofdev.edmodo.cropper.CropImageActivity"
-            android:theme="@style/Base.Theme.AppCompat"/>
+            android:theme="@style/Base.Theme.AppCompat" />
         <activity
             android:name=".views.ForgotPasswordActivity"
             android:theme="@style/AppTheme.NoActionBar" />
@@ -70,8 +68,12 @@
         <activity
             android:name=".views.GroupListActivity"
             android:label="@string/title_activity_group_list"
-            android:theme="@style/AppTheme.NoActionBar">
-        </activity>
+            android:theme="@style/AppTheme.NoActionBar"></activity>
     </application>
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+
+    <uses-permission android:name="android.permission.CAMERA" />
 
 </manifest>
\ No newline at end of file