app/src/main/AndroidManifest.xml

@@ -35,7 +35,7 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
-        <service android:name=".SurveillanceService" />
+        <service android:name=".TestService" />
     </application>
 
 </manifest>

app/src/main/java/com/example/childguard/HomeFragment.java

@@ -20,7 +20,7 @@ import androidx.fragment.app.FragmentTransaction;
  * Use the {@link HomeFragment#newInstance} factory method to
  * create an instance of this fragment.
  */
-public class HomeFragment extends Fragment  {
+public class HomeFragment extends Fragment implements OnEventListener {
 
     // TODO: Rename parameter arguments, choose names that match
     // the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
@@ -31,9 +31,6 @@ public class HomeFragment extends Fragment  {
     private String str_key;
     private String mParam2;
 
-    final String GET_ON = "\n乗車状態";
-    final String GET_OFF = "\n降車状態";
-
 
     public HomeFragment() {
         // Required empty public constructor
@@ -82,35 +79,36 @@ public class HomeFragment extends Fragment  {
     public void onResume() {
         super.onResume();
         Log.d("HomeFragment", "onResume: called");
-        Log.d("isIncar", "onResume: " + getIsInCarLocal());
         this.updateUiState(getIsInCarLocal());
-        this.updateBluetoothSituation(isBluetoothConnected());
-    }
-
-    private boolean isBluetoothConnected() {
-        SharedPreferences pref = requireActivity().getSharedPreferences("Bluetooth_situation", requireActivity().MODE_PRIVATE);
-        return pref.getBoolean("status", false);
     }
 
     private boolean getIsInCarLocal() {
         SharedPreferences pref = requireActivity().getSharedPreferences("app_situation", requireActivity().MODE_PRIVATE);
-        Boolean isInCar = pref.getBoolean("isInCarPref", false);
+        return pref.getBoolean("isInCar", false);
-        Log.d("isInCarPref","isInCar"+ isInCar);
+    }
-        return isInCar;
+
+    //画面遷移メソッド
+    private void replaceFragment(Fragment fragment) {
+        // フラグメントマネージャーの取得
+        FragmentManager manager = getParentFragmentManager(); // アクティビティではgetSupportFragmentManager()?
+        // フラグメントトランザクションの開始
+        FragmentTransaction transaction = manager.beginTransaction();
+        // レイアウトをfragmentに置き換え（追加）
+        transaction.replace(R.id.fragmentContainerView, fragment);
+        // 置き換えのトランザクションをバックスタックに保存する
+        transaction.addToBackStack(null);
+        // フラグメントトランザクションをコミット
+        transaction.commit();
     }
 
-    /**
-     * 乗車状態の画面を切り替える
-     */
     private boolean updateUiState(boolean isInCar) {
         Log.d("HomeFragment", "updateUiState: called");
-        Log.d("HomeFragment", "updateUiState:"+isInCar);
         // Init
         TextView tv;
         FrameLayout fl;
         try {
-            tv = requireView().findViewById(R.id.car_situation);
+            tv = requireView().findViewById(R.id.situation);
-            fl = requireView().findViewById(R.id.car_situation_bg);
+            fl = requireView().findViewById(R.id.situation_bg);
         } catch (NullPointerException e) {
             Log.d("HomeFragment", "updateUiState: view is null");
             return false;
@@ -120,31 +118,29 @@ public class HomeFragment extends Fragment  {
             updateUiState(isInCar);
             return false;
         }
-
+        String get_on = "\n乗車状態";
-        if (isInCar) {
+        String get_off = "\n降車状態";
+        if (!isInCar) {
             //乗車状態にする
             fl.setBackground(ResourcesCompat.getDrawable(getResources(), R.drawable.frame_style_orange, null));
-            tv.setText(GET_ON);
+            tv.setText(get_on);
         } else {
             //降車状態にする
             fl.setBackground(ResourcesCompat.getDrawable(getResources(), R.drawable.frame_style, null));
-            tv.setText(GET_OFF);
+            tv.setText(get_off);
         }
 
         return true;
     }
 
-    /**
+    private boolean updateBluetoothSituation(Boolean BluetoothConnect) {
-     * Bluetoothの接続状態の画面を切り替える
-     */
-    boolean updateBluetoothSituation(Boolean BluetoothConnect) {
         FrameLayout frameLayout;
         TextView textView;
         ImageView imageView;
         try {
-            frameLayout = requireView().findViewById(R.id.situation_bg_bluetooth);
+            frameLayout = requireView().findViewById(R.id.situation_bg2);
-            textView = requireView().findViewById(R.id.BluetoothSituation);
+            textView = requireView().findViewById(R.id.Bluetoothsituation);
-            imageView = requireView().findViewById(R.id.BluetoothSituationImage);
+            imageView = requireView().findViewById(R.id.Bluetoothsituationimage);
         } catch (NullPointerException e) {
             Log.d("HomeFragment", "updateUiState: view is null");
             return false;
@@ -154,22 +150,41 @@ public class HomeFragment extends Fragment  {
             updateBluetoothSituation(BluetoothConnect);
             return false;
         }
-        final String CONNECT = "接続中";
+        String connect = "接続中";
-        final String DISCONNECT = "切断中";
+        String disconnect = "切断中";
         if (BluetoothConnect) {
             //接続状態にする
             frameLayout.setBackground(ResourcesCompat.getDrawable(getResources(), R.drawable.frame_style_orange, null));
-            textView.setText(CONNECT);
+            textView.setText(connect);
             imageView.setVisibility(View.GONE);
         } else {
-            //切断状態にする
+            //降車状態にする
             frameLayout.setBackground(ResourcesCompat.getDrawable(getResources(), R.drawable.frame_style, null));
-            textView.setText(DISCONNECT);
+            textView.setText(disconnect);
             imageView.setVisibility(View.VISIBLE);
         }
 
         return true;
     }
 
+
+    @Override
+    public boolean onEvent(boolean isInCar) {//乗車状態と降車状態の変更を受け取ってupdateUiState()に渡す
+        Log.d("HomeFragment", "onEvent: called");
+
+        return updateUiState(isInCar);
+    }
+
+    @Override
+    public void onEvent2(boolean BluetoothConnect) {
+        return;
+    }
+
+
+    @Override
+    public boolean onEvent2(Boolean BluetoothConnect) {//Bluetoothの接続切断を受け取ってupdateBluetoothSituation()に渡す
+        updateBluetoothSituation(BluetoothConnect);
+        return false;
+    }
 }
 

app/src/main/java/com/example/childguard/MainActivity.java

@@ -14,6 +14,7 @@ import android.content.pm.PackageManager;
 import android.graphics.Color;
 import android.os.Build;
 import android.os.Bundle;
+import android.os.Handler;
 import android.os.Vibrator;
 import android.preference.PreferenceManager;
 import android.util.Log;
@@ -25,6 +26,7 @@ import androidx.annotation.NonNull;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.core.app.ActivityCompat;
 import androidx.core.app.NotificationCompat;
+import androidx.fragment.app.Fragment;
 
 import com.google.android.material.bottomnavigation.BottomNavigationView;
 import com.google.firebase.firestore.DocumentReference;
@@ -45,11 +47,12 @@ public class MainActivity extends AppCompatActivity {
 
     DocumentReference mDocRef;
 
-    private HomeFragment homeFragment = HomeFragment.newInstance("test", "test");;
+    private HomeFragment homeFragment;
 
     public static final String TAG = "InspirationQuote";
 
 
+
     private final ActivityResultLauncher<ScanOptions> QrLauncher = registerForActivityResult(
             new ScanContract(),
             result -> {
@@ -71,11 +74,12 @@ public class MainActivity extends AppCompatActivity {
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
-        Log.d(TAG, "onCreate: called");
+
         //Bluetooth接続判定用
-        SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(this);
+        SharedPreferences pref=PreferenceManager.getDefaultSharedPreferences(this);
-        SharedPreferences.Editor e = pref.edit();
+        SharedPreferences.Editor e=pref.edit();
-        e.putBoolean("connection_status", false);
+        e.putBoolean("connection_status",false);
+
 
 
         if (!hasPermissions()) {
@@ -85,26 +89,19 @@ public class MainActivity extends AppCompatActivity {
         BottomNavigationView bottomNavigationView = findViewById(R.id.nav_view);
 
         this.homeFragment = HomeFragment.newInstance("test", "test");
-        if(savedInstanceState == null){
-            getSupportFragmentManager().beginTransaction()
-                    .replace(findViewById(R.id.fragmentContainerView).getId(), this.homeFragment)
-                    .addToBackStack(null)
-                    .commit();
-        }
 
         bottomNavigationView.setOnNavigationItemSelectedListener(v ->
+
         {
             if (v.getItemId() == findViewById(R.id.navigation_home).getId()) {
-                Log.d("MainActivity", "navigation_home: called");
                 findViewById(R.id.fab_scan_qr_code).setVisibility(FrameLayout.VISIBLE);
                 getSupportFragmentManager().beginTransaction()
                         .replace(findViewById(R.id.fragmentContainerView).getId(), this.homeFragment)
                         .addToBackStack(null)
                         .commit();
-                //firebaseLink();
+                firebaseLink();
 
             } else if (v.getItemId() == findViewById(R.id.navigation_settings).getId()) {
-                Log.d("MainActivity", "navigation_settings: called");
                 findViewById(R.id.fab_scan_qr_code).setVisibility(FrameLayout.GONE);
                 getSupportFragmentManager().beginTransaction()
                         .replace(findViewById(R.id.fragmentContainerView).getId(), SettingFragment.newInstance())
@@ -122,6 +119,7 @@ public class MainActivity extends AppCompatActivity {
             ScanOptions options = new ScanOptions();
             options.setPrompt("QRコードを読み取ってください");
             QrLauncher.launch(options);
+
         });
 
         //Bluetooth検知機能
@@ -138,54 +136,58 @@ public class MainActivity extends AppCompatActivity {
         }
         registerReceiver(receiver, intentFilter);
 
-        //startForegroundService(new Intent(this, SurveillanceService.class));
-
     }
 
 
     @Override
     protected void onResume() {
         super.onResume();
-        Log.d("MainActivity onResume", "called");
+        Log.d("onResume", "called");
-//        Log.d("MainActivity onResume", "mDocRef is null");
+        Log.d("onResume", "mDocRef is null");
         firebaseLink();
     }
-    /**
+
-     * 乗車状態の変更
+        private void initNotification(DocumentReference mDocRef) {//サイト上で押されたボタンの管理
-     */
+        // 共有プリファレンス全体の準備
-    public void changeIsInCar() {
+        SharedPreferences sharedPreferences = getSharedPreferences("app_situation", MODE_PRIVATE);
-        //共有プリファレンス全体の準備
+
-        SharedPreferences sharedPreferences = MainActivity.this.getSharedPreferences("app_situation", MODE_PRIVATE);
+        mDocRef.addSnapshotListener(this, (documentSnapshot, e) -> {
-        //共有プリファレンス 書き込みの準備
+
-        SharedPreferences.Editor E = sharedPreferences.edit();
+            Log.d("nt", "イベント開始");
-        SharedPreferences.Editor E2 = sharedPreferences.edit();
+            //共有プリファレンス 書き込みの準備
-        String IdPref = sharedPreferences.getString("ID", null);//アプリに記録されているIDの取得
+            SharedPreferences.Editor E = sharedPreferences.edit();
-        Log.d("MainActivity", "changeIsInCar: ID= " + IdPref);
+            //車の乗り降りを管理するtrue=乗車、false=降車
-        boolean change = sharedPreferences.getBoolean("change", false);
+            if (documentSnapshot.exists()) {//exists()でdocumentSnapshotの中のファイルの存在の確認
-        Log.d("MainActivity", "changeIsInCar: " + change);
+                Fragment fragment = getSupportFragmentManager().findFragmentById(R.id.fragmentContainerView);
-        db = FirebaseFirestore.getInstance();//Firebaseとの紐づけ
+                Boolean isInCar = sharedPreferences.getBoolean("isInCarPref", false);//現在の乗降状態を保存する共有プリファレンス
-        DocumentReference isReported = db.collection("status").document(IdPref);//更新するドキュメントとの紐づけ
+                E.putBoolean("isInCarPref", documentSnapshot.getBoolean("isInCar"));//乗降状態の判定
-        Map<String, Boolean> DEFAULT_ITEM = new HashMap<>();//mapの宣言
+                E.apply();//確定処理
-        if (!change) {
+                Log.d("nt", "レスポンスを検知しました1");
-            //isInCarをtrueに更新
+                //FireBaseで更新された情報の判定
-            Log.d("MainActivity", "change:"+change);
+                if (!documentSnapshot.getBoolean("isReported")) {//isReportedがfalseのとき=サイト上で保護者ボタンが押されたとき
-            E.putBoolean("change", true);
+                    if (fragment instanceof HomeFragment) {//fragmentがHomeFragmentのインスタンスかの判定
-            E.apply();
+//                        changes-situation();//  changes-situation()メソッドを処理→アプリ側の乗降状態を変化
-            Log.d("MainActivity", "change:"+sharedPreferences.getBoolean("change",false));
+                        ((HomeFragment) fragment).onEvent(!isInCar);
-        } else {
+                    }
-            Log.d("MainActivity", "change:"+change);
+                } else if (isInCar) {//第三者ボタンが押されたときにisInCarがtrueのとき＝乗車状態のとき→いたずら防止
-            E.putBoolean("change", false);
+                    int importance = NotificationManager.IMPORTANCE_DEFAULT;
-            E.apply();
+                    NotificationChannel channel = new NotificationChannel("CHANNEL_ID", "通報通知", importance);
-            Log.d("MainActivity", "change:"+sharedPreferences.getBoolean("change",false));
+                    channel.setDescription("第3者からの通報を検知しました");
-        }
+                    NotificationManager notificationManager = getSystemService(NotificationManager.class);
-        Log.d("MainActivity", "changeIsInCar: "+sharedPreferences.getBoolean("change",false));
+                    notificationManager.createNotificationChannel(channel);
-        isReported.update("isInCar", sharedPreferences.getBoolean("change",false)).addOnSuccessListener(unused -> Log.d(TAG, "DocumentSnapshot successfully updated!!")).addOnFailureListener(e -> Log.w(TAG, "Error updating document", e));
+                    Log.d("nt", "レスポンスを検知しました2");
-        E2.putBoolean("isInCarPref", sharedPreferences.getBoolean("change",false));
+                    NotificationSetting();//通知に関する設定のメソッド
-        E2.apply();
+                    Notification(getApplicationContext());//通知を行うメソッド
+                    ResetReported();// ResetReported();メソッドを処理→FireBaseのisReportedをfalseにする
+                } else {//第三者ボタンが押されたときにisInCarがfalseのとき=降車状態のとき
+                    ResetReported();// ResetReported();を処理→FireBaseのisReportedをfalseにする
+                    Log.d("nt", "何もなし");
+                }
+            }
+        });
+
     }
 
-
-
     private boolean hasPermissions() {
         return ActivityCompat.checkSelfPermission(this, Manifest.permission.BLUETOOTH) == PackageManager.PERMISSION_GRANTED &&
                 ActivityCompat.checkSelfPermission(this, Manifest.permission.BLUETOOTH_ADMIN) == PackageManager.PERMISSION_GRANTED &&
@@ -225,22 +227,168 @@ public class MainActivity extends AppCompatActivity {
     }
 
 
-    /**
+
-     * FireBaseのIDの取得
+
-     */
     public void firebaseLink() {//Firebaseのドキュメントの取得
-        Log.d("MainActivity", "firebaseLink: called");
         //共有プリファレンス全体の準備
         SharedPreferences sharedPreferences = getSharedPreferences("app_situation", MODE_PRIVATE);
-        String IdPref = sharedPreferences.getString("ID", null);//アプリに記録されているIDの取得
+        String IdPref = sharedPreferences.getString("ID", null);////アプリに記録されているIDの取得
-        if (IdPref == null) {
+        if (IdPref == null) {//FireBaseのIDがアプリに登録されているとき
             Log.d("onResume", "ID not initialized.");
         } else {
             mDocRef = FirebaseFirestore.getInstance().document("status/" + IdPref);//現在の位置を取得
-            //updateIsInCarPref(mDocRef);//現在の位置を引数に initNotification()を処理
+            initNotification(mDocRef);//現在の位置を引数に initNotification()を処理
+
         }
     }
 
+    public void ResetReported() {//FireBaseのisReportedをfalseに初期化するメソッド
+        //共有プリファレンス全体の準備
+        SharedPreferences sharedPreferences = MainActivity.this.getSharedPreferences("app_situation", MODE_PRIVATE);
+        String IdPref = sharedPreferences.getString("ID", null);//アプリに記録されているIDの取得
+        db = FirebaseFirestore.getInstance();//Firebaseとの紐づけ
+        DocumentReference isReported = db.collection("status").document(IdPref);//更新するドキュメントとの紐づけ
+        Map<String, Boolean> DEFAULT_ITEM = new HashMap<>();//mapの宣言
+        //isReportedをfalseに更新
+        isReported.update("isReported", false).addOnSuccessListener(unused -> Log.d(TAG, "DocumentSnapshot successfully updated!")).addOnFailureListener(e -> Log.w(TAG, "Error updating document", e));
+    }
+
+    public void changeIsInCar() {
+        //共有プリファレンス全体の準備
+        SharedPreferences sharedPreferences = MainActivity.this.getSharedPreferences("app_situation", MODE_PRIVATE);
+        //共有プリファレンス 書き込みの準備
+        SharedPreferences.Editor E = sharedPreferences.edit();
+        String IdPref = sharedPreferences.getString("ID", null);//アプリに記録されているIDの取得
+        Boolean change=sharedPreferences.getBoolean("change",false);
+        db = FirebaseFirestore.getInstance();//Firebaseとの紐づけ
+        DocumentReference isReported = db.collection("status").document(IdPref);//更新するドキュメントとの紐づけ
+        Map<String, Boolean> DEFAULT_ITEM = new HashMap<>();//mapの宣言
+        if (!change) {
+            //isInCarをtrueに更新
+            E.putBoolean("change",true);
+        }else{
+            E.putBoolean("change",false);
+        }
+        isReported.update("isInCar", change).addOnSuccessListener(unused -> Log.d(TAG, "DocumentSnapshot successfully updated!")).addOnFailureListener(e -> Log.w(TAG, "Error updating document", e));
+        E.apply();
+    }
+    public void NotificationSetting() {//通知に関する設定の処理を行うメソッド
+        int importance = NotificationManager.IMPORTANCE_DEFAULT;
+        //通知チャネルの実装
+        NotificationChannel channel = new NotificationChannel("CHANNEL_ID", "通知", importance);
+        channel.setDescription("第三者により置き去りの通報が行われたときに通知します。");
+
+        NotificationManager notificationManager = getSystemService(NotificationManager.class);
+        notificationManager.createNotificationChannel(channel);
+
+    }
+
+    public void Notification(Context context) {//実際に通知を行うメソッド
+        final String CHANNEL_ID = "my_channel_id";
+        // 通知がクリックされたときに送信されるIntent
+        Intent intent = new Intent(context, MainActivity.class);
+        intent.setAction("OPEN_ACTIVITY");
+        // PendingIntentの作成
+        int requestCode = 100;
+        int flags = 0;
+        PendingIntent pendingIntent = PendingIntent.getActivity(context, requestCode, intent, flags | PendingIntent.FLAG_IMMUTABLE);
+
+        ((Vibrator) getSystemService(Context.VIBRATOR_SERVICE)).vibrate(2000);//バイブレーション
+
+        @SuppressLint("NotificationTrampoline") NotificationCompat.Builder builder = new NotificationCompat.Builder(context, "CHANNEL_ID")
+                .setSmallIcon(android.R.drawable.ic_menu_info_details)
+                .setContentTitle("子供の置き去りをしていませんか？")//通知のタイトル
+                .setContentText("第三者からの通報が行われました。")//通知の本文
+                .setContentIntent(pendingIntent)//通知をタップするとActivityへ移動する
+                .setAutoCancel(true)//通知をタップすると削除する
+                .setPriority(NotificationCompat.PRIORITY_HIGH) // プライオリティを高く設定
+                .setVisibility(NotificationCompat.VISIBILITY_PUBLIC); // ロック画面に表示する
+
+        // NotificationChannelの作成（Android 8.0以降）
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            NotificationManager notificationManager = context.getSystemService(NotificationManager.class);
+            if (notificationManager != null) {
+                NotificationChannel channel = new NotificationChannel(
+                        CHANNEL_ID,
+                        "Channel Name",
+                        NotificationManager.IMPORTANCE_HIGH
+                );
+
+                channel.setDescription("Channel Description");
+                channel.enableLights(true);
+                channel.setLightColor(Color.RED);
+                channel.enableVibration(true);
+                notificationManager.createNotificationChannel(channel);
+            }
+        }
+
+
+        NotificationManager notificationManager = (NotificationManager) context.getSystemService(context.NOTIFICATION_SERVICE);
+        if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.POST_NOTIFICATIONS) != PackageManager.PERMISSION_GRANTED) {
+            return;
+        }
+        notificationManager.notify(R.string.app_name, builder.build());//通知の表示
+    }
+
+
+    @Override
+    public void onStop() {//アプリをバックグラウンドにした時のメソッド
+        super.onStop();
+        Intent intent = new Intent(getApplication(), TestService.class);
+        startService(intent);//TestServiceを起動
+    }
+
+    public void NotificationBluetooth(Context context) {//実際に通知を行うメソッド
+        final String CHANNEL_ID = "my_channel_id";
+        // 通知がクリックされたときに送信されるIntent
+        Intent intent = new Intent(context, MainActivity.class);
+        intent.setAction("OPEN_ACTIVITY");
+        // PendingIntentの作成
+        int requestCode = 100;
+        int flags = 0;
+        PendingIntent pendingIntent = PendingIntent.getActivity(context, requestCode, intent, flags | PendingIntent.FLAG_IMMUTABLE);
+
+        ((Vibrator) getSystemService(Context.VIBRATOR_SERVICE)).vibrate(2000);//バイブレーション
+
+        @SuppressLint("NotificationTrampoline") NotificationCompat.Builder builder = new NotificationCompat.Builder(context, "CHANNEL_ID")
+                .setSmallIcon(android.R.drawable.ic_menu_info_details)
+                .setContentTitle("子供の置き去りをしていませんか？")//通知のタイトル
+                .setContentText("Bluetoothと車の切断から5分が経過しました")//通知の本文
+                .setContentIntent(pendingIntent)//通知をタップするとActivityへ移動する
+                .setAutoCancel(true)//通知をタップすると削除する
+                .setPriority(NotificationCompat.PRIORITY_HIGH) // プライオリティを高く設定
+                .setVisibility(NotificationCompat.VISIBILITY_PUBLIC); // ロック画面に表示する
+
+        // NotificationChannelの作成（Android 8.0以降）
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            NotificationManager notificationManager = context.getSystemService(NotificationManager.class);
+            if (notificationManager != null) {
+                NotificationChannel channel = new NotificationChannel(
+                        CHANNEL_ID,
+                        "Channel Name",
+                        NotificationManager.IMPORTANCE_HIGH
+                );
+
+                channel.setDescription("Channel Description");
+                channel.enableLights(true);
+                channel.setLightColor(Color.RED);
+                channel.enableVibration(true);
+                notificationManager.createNotificationChannel(channel);
+            }
+        }
+
+
+        NotificationManager notificationManager = (NotificationManager)context.getSystemService(context.NOTIFICATION_SERVICE);
+        if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.POST_NOTIFICATIONS) != PackageManager.PERMISSION_GRANTED) {
+            return;
+        }
+        notificationManager.notify(R.string.app_name, builder.build());//通知の表示
+    }
+
+
+
+
+
     public void Bluetooth_status() {
         IntentFilter intentFilter = new IntentFilter();
         intentFilter.addAction(BluetoothDevice.ACTION_ACL_CONNECTED);
@@ -257,10 +405,14 @@ public class MainActivity extends AppCompatActivity {
 
 
     private final BroadcastReceiver receiver = new BroadcastReceiver() {
+
+
+        //PreferenceManager.getDefaultSharedPreferences("myPreferences",Context.MODE_PRIVATE);
+
         @Override
         public void onReceive(Context context, Intent intent) {
-            SharedPreferences pref = getSharedPreferences("Bluetooth_situation", MODE_PRIVATE);
+            SharedPreferences pref=getSharedPreferences("Bluetooth_situation",MODE_PRIVATE);
-            SharedPreferences.Editor e = pref.edit();
+            SharedPreferences.Editor e=pref.edit();
             String action = intent.getAction(); // may need to chain this to a recognizing function
             BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
             Boolean isInCar = pref.getBoolean("isInCarPref", false);
@@ -273,7 +425,11 @@ public class MainActivity extends AppCompatActivity {
             String registeredId = PreferenceManager.getDefaultSharedPreferences(getApplicationContext()).getString("bluetooth_device_id", "none");
 
             if (BluetoothDevice.ACTION_ACL_CONNECTED.equals(action)) {
+                //Do something if connected
                 //Bluetoothデバイスが接続されたときの処理
+                e.putBoolean("change", true);
+                e.apply();
+                changeBluetooth();//HomeFragmentの表示を接続にする
                 Log.d("BT", "Device connected");
 
                 Log.d("BT_Judge", "Registered: " + registeredId);
@@ -281,33 +437,46 @@ public class MainActivity extends AppCompatActivity {
                 if (deviceHardwareAddress.equals(registeredId)) {
                     //登録済みのデバイスだったときの処理
                     Log.d("BT_Judge", "登録済み");
-                    changeBluetooth(true);
+                    e.putBoolean("connection_status",true);
-                    e.putBoolean("connection_status", true);
+
-                    if(homeFragment != null && homeFragment.isVisible()){
+                } else{
-                        homeFragment.updateBluetoothSituation(true);
-                    }
-                } else {
                     //登録していないデバイスだったときの処理
                     Log.d("BT_Judge", "未登録");
-                    e.putBoolean("connection_status", false);
+                    e.putBoolean("connection_status",false);
                 }
                 e.apply();
 
-            }else if (BluetoothDevice.ACTION_ACL_DISCONNECTED.equals(action)) {
+            } else if (BluetoothDevice.ACTION_ACL_DISCONNECTED.equals(action)&&!isInCar) {//bluetoothが切断されたときに乗車状態のとき
-                //bluetoothデバイスが切断されたときの処理
+
-                changeBluetooth(false);
+                //Do something if disconnected
-                if(homeFragment != null && homeFragment.isVisible()){
+                //デバイスが切断されたときの処理
-                    homeFragment.updateBluetoothSituation(false);
+                e.putBoolean("change", false);
+                e.apply();
+                changeBluetooth();//HomeFragmentの表示を切断にする
+                if (deviceHardwareAddress.equals(registeredId)) {
+                    // 5分待機する
+                    Handler handler = new Handler();
+                    handler.postDelayed(new Runnable() {
+                        @Override
+                        public void run() {
+                            if (BluetoothDevice.ACTION_ACL_DISCONNECTED.equals(action)&&!isInCar) {//その後bluetoothを再接続したり降車状態になったりしていない＝置き去りが発生した可能性大
+                                NotificationBluetooth(getApplicationContext());//通知を行うメソッド
+                            }}
+
+                    }, 5 *60*1000); // 5分をミリ秒に変換
                 }
+            }else {
+                Log.d("BT", "Device disconnected");
             }
         }
     };
 
-    /**
+    public void changeBluetooth(){
-     * Bluetoothの接続状態を変更するメソッド
+        SharedPreferences pref=getSharedPreferences("Bluetooth_situation",MODE_PRIVATE);
-     */
+        SharedPreferences.Editor e=pref.edit();
-    public void changeBluetooth(boolean actual) {
+        Boolean BluetoothConnect = pref.getBoolean("change", false);
-        getSharedPreferences("Bluetooth_situation", MODE_PRIVATE).edit().putBoolean("status", actual).apply();
+        Fragment fragment = getSupportFragmentManager().findFragmentById(R.id.fragmentContainerView);
+        ((HomeFragment) fragment).onEvent2(BluetoothConnect);
     }
 }
 

app/src/main/java/com/example/childguard/OnEventListener.java

@@ -3,4 +3,8 @@ package com.example.childguard;
 public interface OnEventListener {
 
     boolean onEvent(boolean state);
+
+    void onEvent2(boolean BluetoothConnect);
+
+    boolean onEvent2(Boolean BluetoothConnect);
 }

app/src/main/java/com/example/childguard/RecyclerAdapter.java

@@ -53,15 +53,15 @@ public class RecyclerAdapter extends RecyclerView.Adapter<RecyclerAdapter.ItemVi
                     .setMessage("このデバイスを登録しますか？")
                     .setPositiveButton(android.R.string.ok, (dialog, which) -> {
                         // OK button pressed
-//                        Toast.makeText(v.getContext(), "OK button clicked", Toast.LENGTH_SHORT).show();
+                        Toast.makeText(v.getContext(), "OK button clicked", Toast.LENGTH_SHORT).show();
                         //共有プリファレンスに保存
                         SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this.applicationContext);
                         sharedPreferences.edit().putString("bluetooth_device_id", deviceList.get(position)[1]).apply();
                         sharedPreferences.edit().putString("bluetooth_device_name", deviceList.get(position)[0]).apply();
-//                        Toast.makeText(v.getContext(), PreferenceManager.getDefaultSharedPreferences(this.applicationContext).getString("bluetooth_device_id", "none"), Toast.LENGTH_SHORT).show();
+                        Toast.makeText(v.getContext(), PreferenceManager.getDefaultSharedPreferences(this.applicationContext).getString("bluetooth_device_id", "none"), Toast.LENGTH_SHORT).show();
 
                         TextView textView = this.parentView.findViewById(R.id.registered_device);
-                        textView.setText(PreferenceManager.getDefaultSharedPreferences(this.applicationContext).getString("bluetooth_device_name", "登録されていません"));
+                        textView.setText(PreferenceManager.getDefaultSharedPreferences(this.applicationContext).getString("bluetooth_device_name", "none"));
 
 
                     })

app/src/main/java/com/example/childguard/SettingFragment.java

@@ -3,8 +3,6 @@ package com.example.childguard;
 import static android.content.ContentValues.TAG;
 import static android.content.Context.MODE_PRIVATE;
 
-import android.content.Context;
-import android.content.Intent;
 import android.content.SharedPreferences;
 import android.os.Bundle;
 import android.util.Log;
@@ -97,7 +95,6 @@ public class SettingFragment extends Fragment {
                             SharedPreferences.Editor editor = sharedPreferences1.edit();
                             editor.putString("ID", documentReference.getId());
                             editor.apply();
-                            startTestService();
 
                             Toast.makeText(getActivity(), "初回登録", Toast.LENGTH_SHORT).show();
                             getParentFragmentManager().beginTransaction().addToBackStack(null).replace(R.id.fragmentContainerView, GenerateQrFragment.newInstance(documentReference.getId())).commit();
@@ -109,11 +106,4 @@ public class SettingFragment extends Fragment {
             }
         });
     }
-    private void startTestService() {
-        Context context = getContext();
-        if (context != null) {
-            Intent serviceIntent = new Intent(context, SurveillanceService.class);
-            context.startForegroundService(serviceIntent);
-        }
-    }
 }

app/src/main/java/com/example/childguard/SurveillanceService.java

@@ -1,363 +0,0 @@
-package com.example.childguard;
-
-import android.app.Notification;
-import android.app.NotificationChannel;
-import android.app.NotificationManager;
-import android.app.PendingIntent;
-import android.app.Service;
-import android.bluetooth.BluetoothDevice;
-import android.content.BroadcastReceiver;
-import android.content.Context;
-import android.content.Intent;
-import android.content.IntentFilter;
-import android.content.SharedPreferences;
-import android.content.pm.PackageManager;
-import android.os.Handler;
-import android.os.IBinder;
-import android.os.VibrationEffect;
-import android.os.Vibrator;
-import android.preference.PreferenceManager;
-import android.util.Log;
-
-import androidx.annotation.Nullable;
-import androidx.core.app.ActivityCompat;
-import androidx.core.app.NotificationCompat;
-import androidx.core.app.NotificationManagerCompat;
-
-import com.google.firebase.firestore.DocumentReference;
-import com.google.firebase.firestore.FirebaseFirestore;
-
-public class SurveillanceService extends Service {
-
-    private final Handler handler = new Handler();
-    private Runnable notificationRunnable;
-
-    public static class NotificationContent {
-        private final String title;
-        private final String description;
-        private final String channelId;
-        private final int notificationId;
-
-        public NotificationContent(String title, String description, String channelId, int notificationId) {
-            this.title = title;
-            this.description = description;
-            this.channelId = channelId;
-            this.notificationId = notificationId;
-        }
-
-        public String getTitle() {
-            return title;
-        }
-
-        public String getDescription() {
-            return description;
-        }
-
-        public String getChannelId() {
-            return channelId;
-        }
-
-        public int getNotificationId() {
-            return notificationId;
-        }
-    }
-
-    public static final String TAG = "InspirationQuote";
-    private static final String BT_ALERT_CHANNEL_ID = "child_guard_bt_alert";
-    private static final String REPORTED_CHANNEL_ID = "child_guard_reported";
-    private static final String BACKGROUND_CHANNEL_ID = "child_guard_background";
-    private static final int REQUEST_CODE = 100;
-    private static final int NOTIFICATION_DELAY = 5 * 60 * 1000; // 5 minutes
-
-
-    private static final NotificationContent REPORTED_NOTIFICATION =
-            new NotificationContent("子供の置き去りをしていませんか？", "第三者からの通報が行われました。", REPORTED_CHANNEL_ID, 2);
-    private static final NotificationContent BLUETOOTH_NOTIFICATION =
-            new NotificationContent("子供の置き去りをしていませんか？🐈", "Bluetoothと車の切断から5分が経過しました", BT_ALERT_CHANNEL_ID, 3);
-
-    private String userId = null;
-
-    @Override
-    public int onStartCommand(Intent intent, int flags, int startId) {
-        Log.d(TAG, "onStartCommand: ");
-        this.userId = getSharedPreferences("app_situation", MODE_PRIVATE).getString("ID", null);
-        if (this.userId == null) {
-            Log.d("onResume", "ID not initialized.");
-            return flags; // IDが初期化されていない場合は何もしない
-        }
-
-        if (isNotificationChannelCreated(BACKGROUND_CHANNEL_ID)) {
-            createRunningNotificationChannel();
-        }
-        Intent notificationIntent = new Intent(this, MainActivity.class);
-        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, notificationIntent, PendingIntent.FLAG_IMMUTABLE);
-        Notification notification = new NotificationCompat.Builder(this, BACKGROUND_CHANNEL_ID)
-                .setContentTitle("ChildGuardバックグラウンドサービス")
-                .setContentText("接続/通報監視サービスがバックグラウンドで実行されています")
-                .setSmallIcon(android.R.drawable.ic_menu_info_details)
-                .setContentIntent(pendingIntent)
-                .build();
-        startForeground(1, notification);
-
-        setSnapshotListener(FirebaseFirestore.getInstance().document("status/" + this.userId));
-
-        if (isNotBluetoothGranted()) return flags;
-
-        registerReceiver(receiver);
-        return START_STICKY;
-    }
-
-    @Override
-    public void onCreate() {
-        super.onCreate();
-        if (isNotificationChannelCreated(BT_ALERT_CHANNEL_ID)) createAlertNotificationChannel(BT_ALERT_CHANNEL_ID);
-        if (isNotificationChannelCreated(REPORTED_CHANNEL_ID)) createAlertNotificationChannel(REPORTED_CHANNEL_ID);
-    }
-
-    /**
-     * 通知チャネルが作成されているか確認
-     * @return 通知チャンネルの有無 true: 作成済み false: 未作成
-     */
-    private boolean isNotificationChannelCreated(String channelId) {
-        NotificationManager notificationManager = getSystemService(NotificationManager.class);
-        return notificationManager.getNotificationChannel(channelId) == null;
-    }
-
-    /**
-     * 通知チャネルの作成
-     */
-    private void createAlertNotificationChannel(String channelId) {
-        int importance = NotificationManager.IMPORTANCE_DEFAULT;
-        NotificationChannel channel = new NotificationChannel(channelId, "通知", importance);
-        channel.setDescription("第三者により置き去りの通報が行われたときに通知します。");
-        NotificationManager notificationManager = getSystemService(NotificationManager.class);
-        notificationManager.createNotificationChannel(channel);
-    }
-
-    /**
-     * バックグラウンドで実行中の通知チャネルを作成
-     */
-    private void createRunningNotificationChannel() {
-        NotificationChannel serviceChannel = new NotificationChannel(
-                BACKGROUND_CHANNEL_ID,
-                "Foreground Service Channel",
-                NotificationManager.IMPORTANCE_NONE
-        );
-        NotificationManager manager = getSystemService(NotificationManager.class);
-        if (manager != null) {
-            manager.createNotificationChannel(serviceChannel);
-        }
-    }
-
-    /**
-     * 通知が許可がされているかどうかを確認
-     * @return 通知の許可の有無 true: 許可されていない false: 許可されている
-     */
-    private boolean isNotNotificationEnabled() {
-        NotificationManagerCompat notificationManagerCompat = NotificationManagerCompat.from(this);
-        if (!notificationManagerCompat.areNotificationsEnabled()) {
-            Log.d(TAG, "通知が許可されていません");
-            return true;
-        } else {
-            Log.d(TAG, "通知が許可されています");
-            return false;
-        }
-    }
-
-    /**
-     * Bluetoothの権限が許可されているかどうかを確認
-     * @return Bluetoothの権限の有無 true: 許可されていない false: 許可されている
-     */
-    private boolean isNotBluetoothGranted() {
-        if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.BLUETOOTH_CONNECT) != PackageManager.PERMISSION_GRANTED) {
-            Log.d(TAG, "Bluetoothの権限が許可されていません");
-            return true;
-        } else {
-            Log.d(TAG, "Bluetoothの権限が許可されています");
-            return false;
-        }
-    }
-
-    /**
-     * ブロードキャストレシーバーを登録
-     * @param receiver ブロードキャストレシーバー
-     */
-    private void registerReceiver(BroadcastReceiver receiver) {
-        IntentFilter intentFilter = new IntentFilter();
-        intentFilter.addAction(BluetoothDevice.ACTION_ACL_CONNECTED);
-        intentFilter.addAction(BluetoothDevice.ACTION_ACL_DISCONNECTED);
-
-        registerReceiver(receiver, intentFilter);
-    }
-
-    /**
-     * Firestoreのスナップショットリスナーを設定
-     * @param mDocRef Firestoreのドキュメントリファレンス
-     */
-    private void setSnapshotListener(DocumentReference mDocRef) {
-        // Initialize the PeriodicTaskManager
-        // (Assuming it's done elsewhere as it's not shown in the original code)
-
-        // Prepare SharedPreferences
-        SharedPreferences sharedPreferences = getSharedPreferences("app_situation", MODE_PRIVATE);
-
-        // Add a snapshot listener to the document reference
-        mDocRef.addSnapshotListener((documentSnapshot, e) -> {
-            if (e != null) {
-                Log.w("nt", "Listen failed.", e);
-                return;
-            }
-
-            if (documentSnapshot != null && documentSnapshot.exists()) {
-                Log.d("nt", "イベント開始");
-
-                // Handle document snapshot
-                SharedPreferences.Editor editor = sharedPreferences.edit();
-                boolean isInCar = sharedPreferences.getBoolean("isInCarPref", false);
-                boolean newIsInCarState = Boolean.TRUE.equals(documentSnapshot.getBoolean("isInCar"));
-
-                editor.putBoolean("isInCarPref", newIsInCarState);
-                editor.apply();
-
-                Log.d("nt", "レスポンスを検知しました1");
-                Log.d("SurveillanceService", "Bluetooth: "+sharedPreferences.getBoolean("BluetoothStatusLocal", false));
-
-                if (isInCar&&!sharedPreferences.getBoolean("BluetoothStatusLocal", false)) {
-                    if (Boolean.TRUE.equals(documentSnapshot.getBoolean("isReported"))) {
-                        resetReported();
-                        sendNotification(getApplicationContext(), REPORTED_NOTIFICATION);
-                    }
-                } else {
-                    resetReported();
-                }
-            } else {
-                Log.d("nt", "Current data: null");
-            }
-        });
-    }
-
-    /**
-     * 通報フラグをリセットする
-     */
-    private void resetReported() {
-        FirebaseFirestore db = FirebaseFirestore.getInstance();//Firebaseとの紐づけ
-        DocumentReference isReported = db.collection("status").document(this.userId);
-        //isReportedをfalseに更新
-        isReported.update("isReported", false).addOnSuccessListener(unused ->
-                Log.d(TAG, "DocumentSnapshot successfully updated!")).addOnFailureListener(e -> Log.w(TAG, "Error updating document", e));
-    }
-
-    /**
-     * 通知をタップしたときにアプリを起動するPendingIntentを取得
-     *
-     * @param context コンテキスト
-     * @return PendingIntent
-     */
-    private PendingIntent getPendingIntent(Context context) {
-        Intent intent = new Intent(context, MainActivity.class);
-        intent.setAction("OPEN_ACTIVITY");
-        return PendingIntent.getActivity(context, SurveillanceService.REQUEST_CODE, intent, PendingIntent.FLAG_IMMUTABLE);
-    }
-
-    /**
-     * デバイスをバイブレーションさせる
-     */
-    private void vibrateDevice() {
-        Vibrator vibrator = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
-        if (vibrator.hasVibrator()) {
-            vibrator.vibrate(VibrationEffect.createOneShot(2000, VibrationEffect.DEFAULT_AMPLITUDE));
-        }
-    }
-
-    /**
-     * 通知を送信する
-     * @param context コンテキスト
-     * @param content NotificationContent 通知内容
-     */
-    private void sendNotification(Context context, NotificationContent content) {//通知を行うメソッド
-        // 権限の保有を確認
-        if (isNotNotificationEnabled()) return;
-
-        vibrateDevice();
-
-        NotificationCompat.Builder builder = new NotificationCompat.Builder(context, content.getChannelId())
-                .setSmallIcon(android.R.drawable.ic_menu_info_details)
-                .setContentTitle(content.getTitle())//通知のタイトル
-                .setContentText(content.getDescription())//通知の内容
-                .setContentIntent(getPendingIntent(context))//通知をタップするとActivityへ移動する
-                .setAutoCancel(true)//通知をタップすると削除する
-                .setPriority(NotificationCompat.PRIORITY_HIGH) // プライオリティを高く設定
-                .setVisibility(NotificationCompat.VISIBILITY_PUBLIC); // ロック画面に表示する
-
-        NotificationManager notificationManager = context.getSystemService(NotificationManager.class);
-
-        notificationManager.notify(content.getNotificationId(), builder.build());
-    }
-
-    private final BroadcastReceiver receiver = new BroadcastReceiver() {
-        @Override
-        public void onReceive(Context context, Intent intent) {
-            // 処理対象か確認 ----------------------------------------
-            BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
-            if (device == null) {
-                Log.d("BT", "No device found");
-                return;
-            }
-            String deviceHardwareAddress = device.getAddress(); // MAC address
-            if (deviceHardwareAddress == null) {
-                Log.d("BT", "No device address found");
-                return;
-            }
-            String registeredId = PreferenceManager.getDefaultSharedPreferences(getApplicationContext()).getString("bluetooth_device_id", null);
-            if (registeredId == null) {
-                Log.d("BT_Judge", "No registered device");
-                return;
-            }
-            if (!registeredId.equals(deviceHardwareAddress)) {
-                Log.d("BT_Judge", "Not registered device");
-                return;
-            }
-            boolean isInCar = getSharedPreferences("app_situation", MODE_PRIVATE).getBoolean("change", false);
-//            if (!isInCar) {
-//                Log.d("BT_Judge", "Not in car");
-//                return;
-//            }
-            // -----------------------------------------------------
-
-            // debug log
-            Log.d("BT", "Bluetooth device found: " + deviceHardwareAddress);
-            Log.d("BT", "Registered device: " + registeredId);
-            Log.d("BT", "Is in car: " + isInCar);
-            SharedPreferences sharedPreferences = SurveillanceService.this.getSharedPreferences("app_situation", MODE_PRIVATE);
-            SharedPreferences.Editor E = sharedPreferences.edit();
-            String action = intent.getAction(); // may need to chain this to a recognizing function
-            if (BluetoothDevice.ACTION_ACL_DISCONNECTED.equals(action)) {
-                E.putBoolean("BluetoothStatusLocal", false);
-                // bluetoothが切断されたときに乗車状態のとき
-                if (isInCar) {
-                    notificationRunnable = () -> {
-                        // 5分経過した時点でも車に乗っていない場合
-                        sendNotification(context, BLUETOOTH_NOTIFICATION);
-                    };
-                }
-                handler.postDelayed(notificationRunnable, NOTIFICATION_DELAY);
-            } else if (BluetoothDevice.ACTION_ACL_CONNECTED.equals(action)) {
-                E.putBoolean("BluetoothStatusLocal", true);
-                // 再接続された場合、通知をキャンセルする
-                if (notificationRunnable != null) {
-                    handler.removeCallbacks(notificationRunnable);
-                    notificationRunnable = null;
-                    Log.d("BT", "Notification canceled due to reconnection");
-                }
-            }
-            E.apply();
-            Log.d("SurveillanceService:BT", "Bluetooth status: " + sharedPreferences.getBoolean("BluetoothStatusLocal", false));
-        }
-    };
-
-    @Nullable
-    @Override
-    public IBinder onBind(Intent intent) {
-        return null;
-    }
-}

app/src/main/java/com/example/childguard/TestService.java

@@ -0,0 +1,297 @@
+package com.example.childguard;
+
+import android.annotation.SuppressLint;
+import android.app.NotificationChannel;
+import android.app.NotificationManager;
+import android.app.PendingIntent;
+import android.app.Service;
+import android.bluetooth.BluetoothDevice;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.SharedPreferences;
+import android.content.pm.PackageManager;
+import android.graphics.Color;
+import android.os.Build;
+import android.os.Handler;
+import android.os.IBinder;
+import android.os.Vibrator;
+import android.preference.PreferenceManager;
+import android.util.Log;
+
+import androidx.annotation.Nullable;
+import androidx.core.app.ActivityCompat;
+import androidx.core.app.NotificationCompat;
+
+import com.google.firebase.firestore.DocumentReference;
+import com.google.firebase.firestore.FirebaseFirestore;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class TestService extends Service {
+    FirebaseFirestore db;
+    DocumentReference mDocRef;
+
+    public static final String TAG = "InspirationQuote";
+
+
+    @Override
+    public int onStartCommand(Intent intent, int flags, int startId) {
+
+
+        //共有プリファレンス全体の準備
+        SharedPreferences sharedPreferences = getSharedPreferences("app_situation", MODE_PRIVATE);
+        String IdPref = sharedPreferences.getString("ID", null);//アプリに記録されているIDの取得
+        if (IdPref == null) {//FireBaseのIDがアプリに登録されているとき
+            Log.d("onResume", "ID not initialized.");
+        } else {
+            mDocRef = FirebaseFirestore.getInstance().document("status/" + IdPref);//現在の位置を取得
+            initNotification(mDocRef);//現在の位置を引数に initNotification()を処理
+        }
+
+        Bluetooth_status();
+        return flags;
+
+
+    }
+
+    private void initNotification(DocumentReference mDocRef) {//サイト上で押されたボタンの管理
+        // PeriodicTaskManagerのインスタンス化
+
+        // 共有プリファレンス全体の準備
+        SharedPreferences sharedPreferences = getSharedPreferences("app_situation", MODE_PRIVATE);
+        //車の乗り降りを管理するtrue=乗車、false=降車
+        //exists()でdocumentSnapshotの中のファイルの存在の確認
+        mDocRef.addSnapshotListener((documentSnapshot, e) -> {
+
+            Log.d("nt", "イベント開始");
+            //共有プリファレンス 書き込みの準備
+            SharedPreferences.Editor E = sharedPreferences.edit();
+            //車の乗り降りを管理するtrue=乗車、false=降車
+            if (documentSnapshot.exists()) {//exists()でdocumentSnapshotの中のファイルの存在の確認
+                Boolean isInCar = sharedPreferences.getBoolean("isInCarPref", false);//現在の乗降状態を保存する共有プリファレンス
+                E.putBoolean("isInCarPref", documentSnapshot.getBoolean("isInCar"));//乗降状態の判定
+                E.apply();//確定処理
+                Log.d("nt", "レスポンスを検知しました1");
+                if (isInCar) {//isReportedがtrue=サイト上で乗車状態のとき
+                    if (documentSnapshot.getBoolean("isReported")) {
+                        //ここスタート（リサイクル）
+                        ResetReported();// ResetReported();を処理→FireBaseのisReportedをfalseにする
+                        NotificationSetting();//通知に関する設定のメソッド
+                        Notification(getApplicationContext());//通知を行うメソッド
+                    }
+                } else {//isReportedがfalse=サイト上で降車状態のとき
+                    ResetReported();//ResetReported();を処理→FireBaseのisReportedをfalseにする
+                }
+            }
+
+        });
+    }
+
+    public void ResetReported() {//FireBaseのisReportedをfalseに初期化するメソッド
+        //共有プリファレンス全体の準備
+        SharedPreferences sharedPreferences = getSharedPreferences("app_situation", MODE_PRIVATE);
+        String IdPref = sharedPreferences.getString("ID", null);//アプリに記録されているIDの取得
+        db = FirebaseFirestore.getInstance();//Firebaseとの紐づけ
+        DocumentReference isReported = db.collection("status").document(IdPref);//更新するドキュメントとの紐づけ
+        Map<String, Boolean> DEFAULT_ITEM = new HashMap<>();//mapの宣言
+        DEFAULT_ITEM.put("isReported", false);
+        //isReportedをfalseに更新
+        isReported.update("isReported", false).addOnSuccessListener(unused -> Log.d(TAG, "DocumentSnapshot successfully updated!")).addOnFailureListener(e -> Log.w(TAG, "Error updating document", e));
+    }
+
+    public void NotificationSetting() {//通知に関する設定の処理を行うメソッド
+        int importance = NotificationManager.IMPORTANCE_DEFAULT;
+        //通知チャネルの実装
+        NotificationChannel channel = new NotificationChannel("CHANNEL_ID", "通知", importance);
+        channel.setDescription("第三者により置き去りの通報が行われたときに通知します。");
+
+        NotificationManager notificationManager = getSystemService(NotificationManager.class);
+        notificationManager.createNotificationChannel(channel);
+
+    }
+
+    public void Notification(Context context) {//実際に通知を行うメソッド
+        final String CHANNEL_ID = "my_channel_id";
+        // 通知がクリックされたときに送信されるIntent
+        Intent intent = new Intent(context, MainActivity.class);
+        intent.setAction("OPEN_ACTIVITY");
+        // PendingIntentの作成
+        int requestCode = 100;
+        int flags = 0;
+        PendingIntent pendingIntent = PendingIntent.getActivity(context, requestCode, intent, flags | PendingIntent.FLAG_IMMUTABLE);
+
+        ((Vibrator) getSystemService(Context.VIBRATOR_SERVICE)).vibrate(2000);//バイブレーション
+
+        @SuppressLint("NotificationTrampoline") NotificationCompat.Builder builder = new NotificationCompat.Builder(context, "CHANNEL_ID")
+                .setSmallIcon(android.R.drawable.ic_menu_info_details)
+                .setContentTitle("子供の置き去りをしていませんか？")//通知のタイトル
+                .setContentText("第三者からの通報が行われました。")//通知の本文
+                .setContentIntent(pendingIntent)//通知をタップするとActivityへ移動する
+                .setAutoCancel(true)//通知をタップすると削除する
+                .setPriority(NotificationCompat.PRIORITY_HIGH) // プライオリティを高く設定
+                .setVisibility(NotificationCompat.VISIBILITY_PUBLIC); // ロック画面に表示する
+
+        // NotificationChannelの作成（Android 8.0以降）
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            NotificationManager notificationManager = context.getSystemService(NotificationManager.class);
+            if (notificationManager != null) {
+                NotificationChannel channel = new NotificationChannel(
+                        CHANNEL_ID,
+                        "Channel Name",
+                        NotificationManager.IMPORTANCE_HIGH
+                );
+
+                channel.setDescription("Channel Description");
+                channel.enableLights(true);
+                channel.setLightColor(Color.RED);
+                channel.enableVibration(true);
+                notificationManager.createNotificationChannel(channel);
+            }
+        }
+
+
+        NotificationManager notificationManager = (NotificationManager) context.getSystemService(context.NOTIFICATION_SERVICE);
+        if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.POST_NOTIFICATIONS) != PackageManager.PERMISSION_GRANTED) {
+            return;
+        }
+        notificationManager.notify(R.string.app_name, builder.build());//通知の表示
+    }
+
+    public void NotificationBluetooth(Context context) {//実際に通知を行うメソッド
+        final String CHANNEL_ID = "my_channel_id";
+        // 通知がクリックされたときに送信されるIntent
+        Intent intent = new Intent(context, MainActivity.class);
+        intent.setAction("OPEN_ACTIVITY");
+        // PendingIntentの作成
+        int requestCode = 100;
+        int flags = 0;
+        PendingIntent pendingIntent = PendingIntent.getActivity(context, requestCode, intent, flags | PendingIntent.FLAG_IMMUTABLE);
+
+        ((Vibrator) getSystemService(Context.VIBRATOR_SERVICE)).vibrate(2000);//バイブレーション
+
+        @SuppressLint("NotificationTrampoline") NotificationCompat.Builder builder = new NotificationCompat.Builder(context, "CHANNEL_ID")
+                .setSmallIcon(android.R.drawable.ic_menu_info_details)
+                .setContentTitle("子供の置き去りをしていませんか？")//通知のタイトル
+                .setContentText("Bluetoothと車の切断から5分が経過しました")//通知の本文
+                .setContentIntent(pendingIntent)//通知をタップするとActivityへ移動する
+                .setAutoCancel(true)//通知をタップすると削除する
+                .setPriority(NotificationCompat.PRIORITY_HIGH) // プライオリティを高く設定
+                .setVisibility(NotificationCompat.VISIBILITY_PUBLIC); // ロック画面に表示する
+
+        // NotificationChannelの作成（Android 8.0以降）
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            NotificationManager notificationManager = context.getSystemService(NotificationManager.class);
+            if (notificationManager != null) {
+                NotificationChannel channel = new NotificationChannel(
+                        CHANNEL_ID,
+                        "Channel Name",
+                        NotificationManager.IMPORTANCE_HIGH
+                );
+
+                channel.setDescription("Channel Description");
+                channel.enableLights(true);
+                channel.setLightColor(Color.RED);
+                channel.enableVibration(true);
+                notificationManager.createNotificationChannel(channel);
+            }
+        }
+
+
+        NotificationManager notificationManager = (NotificationManager) context.getSystemService(context.NOTIFICATION_SERVICE);
+        if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.POST_NOTIFICATIONS) != PackageManager.PERMISSION_GRANTED) {
+            return;
+        }
+        notificationManager.notify(R.string.app_name, builder.build());//通知の表示
+    }
+
+
+    public void Bluetooth_status() {
+        IntentFilter intentFilter = new IntentFilter();
+        intentFilter.addAction(BluetoothDevice.ACTION_ACL_CONNECTED);
+        intentFilter.addAction(BluetoothDevice.ACTION_ACL_DISCONNECTED);
+
+        if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.BLUETOOTH_CONNECT) != PackageManager.PERMISSION_GRANTED) {
+            Log.d("BT", "No permission to connect bluetooth devices");
+            return;
+        } else {
+            Log.d("BT", "Permission to connect bluetooth devices granted");
+        }
+        registerReceiver(receiver, intentFilter);
+    }
+
+
+    private final BroadcastReceiver receiver = new BroadcastReceiver() {
+
+
+        //PreferenceManager.getDefaultSharedPreferences("myPreferences",Context.MODE_PRIVATE);
+
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            SharedPreferences pref = getSharedPreferences("Bluetooth_situation", MODE_PRIVATE);
+            SharedPreferences.Editor e = pref.edit();
+            String action = intent.getAction(); // may need to chain this to a recognizing function
+            BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
+            Boolean isInCar = pref.getBoolean("isInCarPref", false);
+
+
+            if (ActivityCompat.checkSelfPermission(context, android.Manifest.permission.BLUETOOTH_CONNECT) != PackageManager.PERMISSION_GRANTED) {
+                Log.d("BT", "No permission to connect bluetooth devices");
+                return;
+            }
+            String deviceHardwareAddress = device.getAddress(); // MAC address
+
+            String registeredId = PreferenceManager.getDefaultSharedPreferences(getApplicationContext()).getString("bluetooth_device_id", "none");
+
+            if (BluetoothDevice.ACTION_ACL_CONNECTED.equals(action)) {
+                //Do something if connected
+                //Bluetoothデバイスが接続されたときの処理
+                Log.d("BT", "Device connected");
+
+
+                Log.d("BT_Judge", "Registered: " + registeredId);
+
+                if (deviceHardwareAddress.equals(registeredId)) {
+                    //登録済みのデバイスだったときの処理
+                    Log.d("BT_Judge", "登録済み");
+                    e.putBoolean("connection_status", true);
+
+                } else {
+                    //登録していないデバイスだったときの処理
+                    Log.d("BT_Judge", "未登録");
+                    e.putBoolean("connection_status", false);
+                }
+                e.apply();
+
+            } else if (BluetoothDevice.ACTION_ACL_DISCONNECTED.equals(action) && !isInCar) {//bluetoothが切断されたときに乗車状態のとき
+
+                //Do something if disconnected
+                //デバイスが切断されたときの処理
+                if (deviceHardwareAddress.equals(registeredId)) {
+                    // 5分待機する
+                    Handler handler = new Handler();
+                    handler.postDelayed(new Runnable() {
+                        @Override
+                        public void run() {
+                            if (BluetoothDevice.ACTION_ACL_DISCONNECTED.equals(action) && !isInCar) {//その後bluetoothを再接続したり降車状態になったりしていない＝置き去りが発生した可能性大
+                                NotificationBluetooth(getApplicationContext());//通知を行うメソッド
+                            }
+                        }
+
+                    }, 5 * 60 * 1000); // 5分をミリ秒に変換
+                }
+            } else {
+                Log.d("BT", "Device disconnected");
+            }
+        }
+    };
+
+
+    @Nullable
+    @Override
+    public IBinder onBind(Intent intent) {
+        return null;
+    }
+}

app/src/main/res/layout/fragment_home.xml

@@ -19,7 +19,7 @@
         app:layout_constraintTop_toTopOf="parent">
 
         <FrameLayout
-            android:id="@+id/car_situation_bg"
+            android:id="@+id/situation_bg"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_marginLeft="20dp"
@@ -37,7 +37,7 @@
                 android:textSize="25dp" />
 
             <TextView
-                android:id="@+id/car_situation"
+                android:id="@+id/situation"
                 android:layout_width="match_parent"
                 android:layout_height="200dp"
                 android:layout_marginTop="10dp"
@@ -49,7 +49,7 @@
         </FrameLayout>
 
         <FrameLayout
-            android:id="@+id/situation_bg_bluetooth"
+            android:id="@+id/situation_bg2"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_marginLeft="20dp"
@@ -58,7 +58,7 @@
             android:background="@drawable/frame_style">
 
             <TextView
-                android:id="@+id/BluetoothSituation"
+                android:id="@+id/Bluetoothsituation"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:layout_marginTop="5dp"
@@ -75,7 +75,7 @@
                 android:textAlignment="center" />
 
             <ImageView
-                android:id="@+id/BluetoothSituationImage"
+                android:id="@+id/Bluetoothsituationimage"
                 android:layout_width="match_parent"
                 android:layout_height="100dp"
                 android:layout_marginTop="50dp"