diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index b754089..0be2f1f 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -2,27 +2,32 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     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" />
 
-    android:hardwareAccelerated="true"
-    <!--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.FLASHLIGHT"/>-->
-    <!--バーコードリーダーアクセス許可終わり-->
     <application
         android:allowBackup="true"
+        android:hardwareAccelerated="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
         <activity
+            android:name=".views.JoinGroupByIDActivity"
+            android:label="IDでグループに入る"
+            />
+        <activity
+            android:name=".views.JoinGroupActionsActivity"
+            android:label="グループに入る" />
+        <activity
             android:name="com.journeyapps.barcodescanner.CaptureActivity"
             android:screenOrientation="fullSensor"
             tools:replace="screenOrientation" />
-        <activity android:name=".views.QRcodeReadingActivity"
+        <activity
+            android:name=".views.QRcodeReadingActivity"
             android:screenOrientation="portrait"
-            tools:replace="screenOrientation">
-        </activity>
+            tools:replace="screenOrientation" />
         <activity android:name=".views.SigninActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
@@ -31,13 +36,17 @@
             </intent-filter>
         </activity>
         <activity android:name=".views.SignupActivity" />
-        <activity android:name=".MainActivity"></activity>
+        <activity android:name=".MainActivity" />
         <activity
             android:name=".views.RequestListActivity"
             android:label="@string/title_activity_request_list"
-            android:theme="@style/AppTheme.NoActionBar"></activity>
-        <activity android:name=".views.DisplayQRActivity" />
-        <activity android:name=".views.AddMemberActivity" />
+            android:theme="@style/AppTheme.NoActionBar" />
+        <activity
+            android:name=".views.DisplayQRActivity"
+            android:label="メンバー追加" />
+        <activity
+            android:name=".views.AddMemberActivity"
+            android:label="メンバー追加" />
         <activity
             android:name=".views.GroupList"
             android:label="@string/title_activity_group_list"
diff --git a/app/src/main/java/com/example/cosmosclient/views/GroupList.java b/app/src/main/java/com/example/cosmosclient/views/GroupList.java
index f9067e5..a905987 100644
--- a/app/src/main/java/com/example/cosmosclient/views/GroupList.java
+++ b/app/src/main/java/com/example/cosmosclient/views/GroupList.java
@@ -90,7 +90,7 @@
         if ( id == R.id.createNewGroupButton){
 
         } else if (id == R.id.joinGroupButton){
-            Intent intent=new Intent(GroupList.this, com.example.cosmosclient.views.QRcodeReadingActivity.class);
+            Intent intent=new Intent(GroupList.this, com.example.cosmosclient.views.JoinGroupActionsActivity.class);
             startActivity(intent);
         } else if (id == R.id.signOutButton){
             Intent intent=new Intent(GroupList.this, com.example.cosmosclient.views.SigninActivity.class);
diff --git a/app/src/main/java/com/example/cosmosclient/views/JoinGroupActionsActivity.java b/app/src/main/java/com/example/cosmosclient/views/JoinGroupActionsActivity.java
new file mode 100644
index 0000000..321bf48
--- /dev/null
+++ b/app/src/main/java/com/example/cosmosclient/views/JoinGroupActionsActivity.java
@@ -0,0 +1,68 @@
+package com.example.cosmosclient.views;
+
+import android.content.Intent;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.BaseAdapter;
+import android.widget.ListView;
+
+import com.example.cosmosclient.R;
+
+public class JoinGroupActionsActivity extends AppCompatActivity implements AdapterView.OnItemClickListener{
+
+    private static final String[] scenes = {
+            "QRコードでグループに入る",
+            "IDでグループに入る",
+            "メールでグループに入る"
+    };
+
+    // ちょっと冗長的ですが分かり易くするために
+    private static final int[] photos = {
+            R.drawable.camera_image,
+            R.drawable.search_image,
+            R.drawable.mail_image,
+
+    };
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_join_group_actions);
+
+        // ListViewのインスタンスを生成
+        ListView listView = findViewById(R.id.list_view_join);
+
+        // BaseAdapter を継承したadapterのインスタンスを生成
+        // レイアウトファイル list.xml を activity_main.xml に
+        // inflate するためにadapterに引数として渡す
+        BaseAdapter adapter = new ListViewAdapter(this.getApplicationContext(),
+                R.layout.list, scenes, photos);
+
+        // ListViewにadapterをセット
+        listView.setAdapter(adapter);
+
+        // クリックリスナーをセット
+        listView.setOnItemClickListener(this);
+    }
+    @Override
+    public void onItemClick(AdapterView<?> parent, View v,
+                            int position, long id) {
+
+
+        Intent intent = null;
+        // clickされたpositionのtextとphotoのID
+        String selectedText = scenes[position];
+        if(selectedText.contains("QR")==true){
+            intent = new Intent(this.getApplicationContext(), QRcodeReadingActivity.class);
+        }else if(selectedText.contains("ID")==true){
+            intent = new Intent(this.getApplicationContext(), JoinGroupByIDActivity.class);
+        }else{
+            intent = new Intent(this.getApplicationContext(), QRcodeReadingActivity.class);
+        }
+
+//            Intent intent = new Intent(this.getApplicationContext(), DisplayQRActivity.class);
+        // SubActivityへ遷移
+        startActivity(intent);
+    }
+}
diff --git a/app/src/main/java/com/example/cosmosclient/views/JoinGroupByIDActivity.java b/app/src/main/java/com/example/cosmosclient/views/JoinGroupByIDActivity.java
new file mode 100644
index 0000000..b861a8e
--- /dev/null
+++ b/app/src/main/java/com/example/cosmosclient/views/JoinGroupByIDActivity.java
@@ -0,0 +1,32 @@
+package com.example.cosmosclient.views;
+
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.TextView;
+
+import com.example.cosmosclient.R;
+
+public class JoinGroupByIDActivity extends AppCompatActivity {
+    private String GroupID=null;
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_join_group_by_id);
+        //テストでグループIDを出力
+        final TextView result = (TextView)findViewById(R.id.IDresult);
+        //buttonを取得
+        Button btn = (Button)findViewById(R.id.button);
+        btn.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                //ボタンを押されると入力されたグループIDを取得
+                EditText inputGroupID = (EditText)findViewById(R.id.inputGroupID);
+                GroupID = inputGroupID.getText().toString();
+                result.setText(GroupID);
+            }
+        });
+    }
+}
diff --git a/app/src/main/res/layout/activity_add_member.xml b/app/src/main/res/layout/activity_add_member.xml
index 44839a0..7274a61 100644
--- a/app/src/main/res/layout/activity_add_member.xml
+++ b/app/src/main/res/layout/activity_add_member.xml
@@ -7,17 +7,6 @@
     tools:context=".views.AddMemberActivity">
 
     <TextView
-    android:id="@+id/viewName"
-    android:layout_width="match_parent"
-    android:layout_height="42dp"
-    android:layout_weight="1"
-    android:background="#a0d8ef"
-    android:gravity="center"
-    android:text="メンバー追加"
-    app:layout_constraintTop_toTopOf="parent"
-    tools:layout_editor_absoluteX="10dp" />
-
-    <TextView
         android:id="@+id/groupName"
         android:layout_width="match_parent"
         android:layout_height="75dp"
@@ -25,7 +14,7 @@
         android:gravity="center"
         android:text="家族用　グループ"
         android:textSize="24sp"
-        app:layout_constraintTop_toBottomOf="@+id/viewName"
+        app:layout_constraintTop_toTopOf="parent"
         tools:layout_editor_absoluteX="0dp" />
 
     <LinearLayout
diff --git a/app/src/main/res/layout/activity_display_qr.xml b/app/src/main/res/layout/activity_display_qr.xml
index 1b1b99c..32a602e 100644
--- a/app/src/main/res/layout/activity_display_qr.xml
+++ b/app/src/main/res/layout/activity_display_qr.xml
@@ -7,17 +7,6 @@
     tools:context=".views.DisplayQRActivity">
 
     <TextView
-        android:id="@+id/viewName"
-        android:layout_width="match_parent"
-        android:layout_height="42dp"
-        android:layout_weight="1"
-        android:background="#a0d8ef"
-        android:gravity="center"
-        android:text="メンバー追加"
-        app:layout_constraintTop_toTopOf="parent"
-        tools:layout_editor_absoluteX="10dp" />
-
-    <TextView
         android:id="@+id/groupName"
         android:layout_width="match_parent"
         android:layout_height="75dp"
@@ -25,7 +14,7 @@
         android:gravity="center"
         android:text="家族用　グループ"
         android:textSize="24sp"
-        app:layout_constraintTop_toBottomOf="@+id/viewName"
+        app:layout_constraintTop_toTopOf="parent"
         tools:layout_editor_absoluteX="16dp" />
 
     <ImageView
@@ -40,10 +29,10 @@
         android:layout_marginBottom="8dp"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintHorizontal_bias="0.5"
+        app:layout_constraintHorizontal_bias="0.466"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@+id/groupName"
-        app:layout_constraintVertical_bias="0.501" />
+        app:layout_constraintVertical_bias="0.405" />
 
 
 </android.support.constraint.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_join_group_actions.xml b/app/src/main/res/layout/activity_join_group_actions.xml
new file mode 100644
index 0000000..1fb2b70
--- /dev/null
+++ b/app/src/main/res/layout/activity_join_group_actions.xml
@@ -0,0 +1,24 @@
+<?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"
+    app:layout_behavior="@string/appbar_scrolling_view_behavior"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".views.JoinGroupActionsActivity">
+
+    <ListView
+        android:id="@+id/list_view_join"
+        android:layout_width="395dp"
+        android:layout_height="640dp"
+        android:layout_marginTop="24dp"
+        android:layout_marginEnd="8dp"
+        android:layout_marginRight="8dp"
+        app:layout_behavior="@string/appbar_scrolling_view_behavior"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.5"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+</android.support.constraint.ConstraintLayout>
diff --git a/app/src/main/res/layout/activity_join_group_by_id.xml b/app/src/main/res/layout/activity_join_group_by_id.xml
new file mode 100644
index 0000000..0ec48a6
--- /dev/null
+++ b/app/src/main/res/layout/activity_join_group_by_id.xml
@@ -0,0 +1,62 @@
+<?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=".views.JoinGroupByIDActivity">
+
+    <EditText
+        android:id="@+id/inputGroupID"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="8dp"
+        android:layout_marginLeft="8dp"
+        android:layout_marginTop="8dp"
+        android:digits="abcdefghijklmnopqrstuvwxyz1234567890 "
+        android:ems="10"
+        android:gravity="start|top"
+        android:inputType="textEmailAddress"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toStartOf="@+id/button"
+        app:layout_constraintHorizontal_bias="0.785"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/textView7"
+        app:layout_constraintVertical_bias="0.27" />
+
+    <TextView
+        android:id="@+id/textView7"
+        android:layout_width="match_parent"
+        android:layout_height="75dp"
+        android:background="#e6eae3"
+        android:gravity="center"
+        android:text="IDを入力してください"
+        android:textSize="24sp"
+        app:layout_constraintTop_toTopOf="parent"
+        tools:layout_editor_absoluteX="16dp" />
+
+    <Button
+        android:id="@+id/button"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginEnd="32dp"
+        android:layout_marginRight="32dp"
+        android:text="検索"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintTop_toTopOf="@+id/inputGroupID" />
+
+    <TextView
+        android:id="@+id/IDresult"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="8dp"
+        android:layout_marginLeft="8dp"
+        android:layout_marginTop="260dp"
+        android:layout_marginEnd="8dp"
+        android:layout_marginRight="8dp"
+        android:textSize="24sp"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.458"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="@+id/inputGroupID" />
+</android.support.constraint.ConstraintLayout>
\ No newline at end of file