diff --git a/app/src/androidTest/java/com/example/childguard/Bluetooth_device_save.java b/app/src/androidTest/java/com/example/childguard/Bluetooth_device_save.java
deleted file mode 100644
index de0df1c..0000000
--- a/app/src/androidTest/java/com/example/childguard/Bluetooth_device_save.java
+++ /dev/null
@@ -1,21 +0,0 @@
-package com.example.childguard;
-
-import android.content.Context;
-import android.content.SharedPreferences;
-import android.preference.PreferenceManager;
-
-import androidx.appcompat.app.AppCompatActivity;
-
-public class Bluetooth_device_save extends AppCompatActivity {
-    final SharedPreferences pref= PreferenceManager.getDefaultSharedPreferences(this);
-    public Bluetooth_device_save() {
-    }
-    public void device_save(String deviceAddress){
-        SharedPreferences.Editor e=pref.edit();
-        e.putString("bluetooth_device1",deviceAddress);
-        e.apply();
-    }
-    public String device_info(){
-        return pref.getString("bluetooth_device1","not_device");
-    }
-}
diff --git a/app/src/main/java/com/example/childguard/MainActivity.java b/app/src/main/java/com/example/childguard/MainActivity.java
index e6a222c..4cd26ee 100644
--- a/app/src/main/java/com/example/childguard/MainActivity.java
+++ b/app/src/main/java/com/example/childguard/MainActivity.java
@@ -34,9 +34,8 @@ public class MainActivity extends AppCompatActivity {
         //通知のやつ↓
         int importance = NotificationManager.IMPORTANCE_DEFAULT;
 
-        NotificationChannel channel = new NotificationChannel("CHANNEL_ID", "通報通知", importance);
-        //説明・説明　ここに通知の説明を書くことができる↓
-        channel.setDescription("第3者からの通報を検知しました");
+        NotificationChannel channel = new NotificationChannel("CHANNEL_ID", "サンプルアプリ", importance);
+        channel.setDescription("説明・説明　ここに通知の説明を書くことができる");
 
         NotificationManager notificationManager = getSystemService(NotificationManager.class);
         notificationManager.createNotificationChannel(channel);
@@ -66,13 +65,13 @@ public class MainActivity extends AppCompatActivity {
     }
 
     //↓通知のやつ
-    public void notifyMain() {
-        ((Vibrator) getSystemService(Context.VIBRATOR_SERVICE)).vibrate(1000);
+    public void notifyTest() {
+        ((Vibrator)getSystemService(Context.VIBRATOR_SERVICE)).vibrate(1000);
         NotificationCompat.Builder builder = new NotificationCompat
                 .Builder(this, "CHANNEL_ID")
                 .setSmallIcon(android.R.drawable.ic_menu_info_details)
-                .setContentTitle("通報検知")
-                .setContentText("子供の置き去りを検知しました。")
+                .setContentTitle("タイトル")
+                .setContentText("メッセージ・メッセージ")
                 .setPriority(NotificationCompat.PRIORITY_DEFAULT);
 
         NotificationManagerCompat notificationManager = NotificationManagerCompat.from(this);
@@ -91,9 +90,8 @@ public class MainActivity extends AppCompatActivity {
 
 
     }
-
     //Bluetooth_setupの戻るボタン
-    public void setupBackButton(boolean enableBackButton) {
+    public void setupBackButton(boolean enableBackButton){
         ActionBar actionBar = getSupportActionBar();
         actionBar.setDisplayHomeAsUpEnabled(enableBackButton);
     }
diff --git a/app/src/main/res/drawable/a_group_qr_sos.png b/app/src/main/res/drawable/a_group_qr_sos.png
new file mode 100644
index 0000000..467ba5f
Binary files /dev/null and b/app/src/main/res/drawable/a_group_qr_sos.png differ
diff --git a/app/src/main/res/layout/fragment_notification.xml b/app/src/main/res/layout/fragment_notification.xml
index 0d4f90d..1146fca 100644
--- a/app/src/main/res/layout/fragment_notification.xml
+++ b/app/src/main/res/layout/fragment_notification.xml
@@ -6,18 +6,9 @@
     tools:context=".NotificationFragment">
 
     <!-- TODO: Update blank fragment layout -->
-    <LinearLayout
+    <TextView
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_weight="9"
-        >
-
-        <androidx.recyclerview.widget.RecyclerView
-            android:id="@+id/recyclerView1"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:scrollbars="vertical"/>
-
-    </LinearLayout>
+        android:layout_height="match_parent"
+        android:text="@string/hello_blank_fragment" />
 
 </FrameLayout>
\ No newline at end of file