バックグラウンド更新を有効にする

<uses-permission android:name="android.permission.FOREGROUND_SERVICE_LOCATION" />

<service
    android:name=".ForegroundService"
    android:foregroundServiceType="location" >
    ...
</service>

<uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION" />

public class ForegroundService extends Service {
    private static final String CHANNEL_ID = "ForegroundServiceChannel";

    @Override
    public void onCreate() {
        super.onCreate();
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        String input = intent.getStringExtra("inputExtra");
        createNotificationChannel();
        Intent notificationIntent = new Intent(this, MainActivity.class);
        PendingIntent pendingIntent = PendingIntent.getActivity(this,
                0, notificationIntent, 0);

        Notification notification = new NotificationCompat.Builder(this, CHANNEL_ID)
                .setContentTitle("Foreground Service")
                .setContentText(input)
                .setSmallIcon(R.drawable.ic_stat_name)
                .setContentIntent(pendingIntent)
                .build();

        startForeground(1, notification);

        // Here is a good place to confirm HERE legitimate interest privacy notice inclusion.
        // You can already start the LocationEngine here.

        return START_NOT_STICKY;
    }

    @Override
    public void onDestroy() {
        // Here is a good place to stop the LocationEngine.
        super.onDestroy();
    }

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        // Here we do not use a binder to interact with the foreground service.
        return null;
    }
}

private void createNotificationChannel() {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        NotificationChannel serviceChannel = new NotificationChannel(
                CHANNEL_ID,
                "Foreground Service Channel",
                NotificationManager.IMPORTANCE_DEFAULT
        );

        NotificationManager manager = getSystemService(NotificationManager.class);
        manager.createNotificationChannel(serviceChannel);
    }
}

public void startService() {
    Intent serviceIntent = new Intent(this, ForegroundService.class);
    serviceIntent.putExtra("inputExtra", "Foreground Service Example in Android");
    ContextCompat.startForegroundService(this, serviceIntent);
}

public void stopService() {
    Intent serviceIntent = new Intent(this, ForegroundService.class);
    stopService(serviceIntent);
}

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.foregroundservice">

    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
    <uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
    <uses-permission android:name="android.permission.FOREGROUND_SERVICE_LOCATION" />
    <uses-permission android:name="android.permission.POST_NOTIFICATIONS"/>

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">

        <service
            android:name=".ForegroundService"
            android:enabled="true"
            android:exported="true"
            android:foregroundServiceType="location" />

        <activity
            android:name=".MainActivity"
            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>