diff --git a/app/build.gradle b/app/build.gradle
index 8a5b3fa..f34f8ff 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -4,7 +4,7 @@
     compileSdkVersion 28
     defaultConfig {
         applicationId "com.example.cosmosclient"
-        minSdkVersion 15
+        minSdkVersion 26
         targetSdkVersion 28
         versionCode 1
         versionName "1.0"
diff --git a/app/src/main/java/com/example/cosmosclient/app/Cosmos.java b/app/src/main/java/com/example/cosmosclient/app/Cosmos.java
index c467f5f..08f8cc6 100644
--- a/app/src/main/java/com/example/cosmosclient/app/Cosmos.java
+++ b/app/src/main/java/com/example/cosmosclient/app/Cosmos.java
@@ -4,10 +4,10 @@
 import android.app.Activity;
 import android.app.Application;
 import android.content.ComponentCallbacks;
-import android.content.res.Configuration;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.PackageManager;
+import android.content.res.Configuration;
 import android.os.Build;
 import android.os.Bundle;
 import android.support.annotation.RequiresApi;
@@ -195,8 +195,8 @@
 
     //currentGroup処理
     public void setCurrentGroup(Group g){
-        setGroup(g);
-        curGroup = groups.get(g.getgId());
+            setGroup(g);
+            curGroup = groups.get(g.getgId());
     }
 
     public Group getCurentGroup(){
diff --git a/app/src/main/java/com/example/cosmosclient/services/CosmosBackgroundService.java b/app/src/main/java/com/example/cosmosclient/services/CosmosBackgroundService.java
index 6565442..74be9d2 100644
--- a/app/src/main/java/com/example/cosmosclient/services/CosmosBackgroundService.java
+++ b/app/src/main/java/com/example/cosmosclient/services/CosmosBackgroundService.java
@@ -63,6 +63,7 @@
     private CosmosLocation LOC = new CosmosLocation();
     private double leftLat,leftLon,rightLat,rightLon; //ここに計算予定
     private int count = 0;
+    private NotificationManager notificationManager;
 
     public CosmosBackgroundService() {
         super("CosmosBackgroundService");
@@ -82,6 +83,10 @@
         context = getApplicationContext();
         // LocationManager インスタンス生成
         locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
+        notificationManager = (NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);
+        int importance = NotificationManager.IMPORTANCE_HIGH;
+        NotificationChannel mChannel = new NotificationChannel("cosmos", "cosmosChannel", importance);
+        notificationManager.createNotificationChannel(mChannel);
     }
 
     @Override
@@ -249,6 +254,28 @@
 
         updateAreaInformation(location);
         this.notifications=searchNotifications(cosmos,location);
+        sendNotifications(this, notifications);
+
+
+    }
+
+    private void sendNotifications(CosmosBackgroundService cosmosBackgroundService, List<Notification> notifications) {
+        int notificationId = 1;
+//      MainActivity→broadcastreseiver(?)に変更
+//        Intent intent = new Intent(cosmosBackgroundService, MainActivity.class);
+//        以下二行はボタンについてだよ
+//        PendingIntent pendingIntent = PendingIntent.getActivity(cosmosBackgroundService, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
+//        android.app.Notification.Action action = new android.app.Notification.Action(R.drawable.notification_icon, "ボタンだよ", pendingIntent);
+
+        android.app.Notification notification = new android.app.Notification.Builder(cosmosBackgroundService)
+                .setContentTitle("通知タイトル")
+                .setContentText("通知ないよう")
+                .setSmallIcon(R.drawable.icon_no)
+                .setChannelId("cosmos")
+//                .setGroup("")
+//                .addAction(action)
+                .build();
+        notificationManager.notify(notificationId, notification);
     }
 
     @Override
@@ -441,7 +468,7 @@
                     //notificationを作成
                     Notification notification = new Notification(groups.get(i).getRequestList().getRequests().get(j),groups.get(i),null);
                     //指定したkey(業番)を持っているHashMapがなければ作成する。
-                    if(codeToNotification.get(groups.get(i).getRequestList().getRequests().get(j))==null){
+                    if(codeToNotification.get(groups.get(i).getRequestList().getRequests().get(j).getLocation())==null){
                         notifications.add(notification);
                         codeToNotification.put(groups.get(i).getRequestList().getRequests().get(j).getLocation(),notifications);
                     }else{
@@ -452,8 +479,12 @@
             }
         }
         //cosmosから区画情報から取得
-        int areaInfoId =(int)((NowLat+90)/0.1)+(int)((NowLon/0.1)*1800);
-        codeToFeature =cosmos.getAreaInfo(areaInfoId).getFeature();
+
+        CosmosLocation cosmosLocation = new CosmosLocation();
+        cosmosLocation.setLatitude(NowLat);
+        cosmosLocation.setLongitude(NowLon);
+        int areaInfoId = cosmosLocation.hashCode();
+        codeToFeature=cosmos.getAreaInfo(areaInfoId).getFeature();
         //codeToFeatureの中の50m圏外Featureを削除していく。
         //HashMapを順番に実行
         for(HashMap.Entry<Integer, ArrayList<Feature>> e : codeToFeature.entrySet()) {
diff --git a/app/src/main/res/drawable/icon_no.png b/app/src/main/res/drawable/icon_no.png
new file mode 100644
index 0000000..807f3e4
--- /dev/null
+++ b/app/src/main/res/drawable/icon_no.png
Binary files differ