出现这种情况可能是由于Android系统的Doze模式或应用程序被优化导致的。为了解决这个问题，我们可以使用AlarmManager在一定的时间间隔内重新启动服务，并在服务中请求位置更新。

以下是一个示例代码，其中“FOREGROUND_SERVICE_ID”是前台服务的ID，而“LOCATION_REQUEST_INTERVAL”是请求位置更新的时间间隔。

public class LocationService extends Service implements LocationListener {
 
    private static final long LOCATION_REQUEST_INTERVAL = 10000; // 10 seconds
 
    private LocationManager locationManager;
 
    private PendingIntent locationUpdateIntent;
 
    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }
 
    @Override
    public void onCreate() {
        super.onCreate();
 
        locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
    }
 
    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
 
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            NotificationChannel channel = new NotificationChannel(
                    "default",
                    "Location Service",
                    NotificationManager.IMPORTANCE_LOW
            );
 
            NotificationManager notificationManager = getSystemService(NotificationManager.class);
            notificationManager.createNotificationChannel(channel);
 
            Notification notification = new NotificationCompat.Builder(this, "default")
                    .setContentTitle("Location Service")
                    .setContentText("Location service is running")
                    .setSmallIcon(R.mipmap.ic_launcher)
                    .build();
 
            startForeground(FOREGROUND_SERVICE_ID, notification);
        }
 
        requestLocationUpdates();
 
        return START_STICKY;
    }
 
    @Override
    public void onDestroy() {
        super.onDestroy();
 
        locationManager.removeUpdates(this);
    }
 
    private void requestLocationUpdates() {
 
        Intent intent = new Intent(this, LocationService.class);
        locationUpdateIntent = PendingIntent.getService(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
 
        AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
 
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            alarmManager.setAndAllowWhileIdle(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + LOCATION_REQUEST_INTERVAL, locationUpdateIntent);
        } else {
            alarmManager.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + LOCATION_REQUEST_INTERVAL, locationUpdateIntent);
        }
 
        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            return;
        }
 
        locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, LOCATION_REQUEST_INTERVAL, 0, this);
 
    }
 
    @Override