Значки панели уведомлений движутся

Question

Я использую 3 приложения в моем приложении. Каждый из них действует как счетчик и появляется в панели уведомлений. Когда я запускаю их все одновременно, значки на панели уведомлений меняются. Я генерирую уведомления с классом обслуживания каждую секунду. Как мне обновить уведомление вместо того, чтобы создавать его заново? Что я делаю не так при создании уведомления.

Пример видео здесь.

public class aktiviteService extends Service {

    final static String channelid = "aktivite_notify";
    final static int notifyid = 3;
    final static String prefe_sure_adi = "aktivite_sure";
    private Chronometer mChronometer;
    MyServiceReceiver_aktivite myServiceReceiveraktivite;
    MyServiceThread_aktivite myServiceThread_aktivite;
    String sayac_txt = "-";
    int cnt;
    long kronometre;
    SharedPreferences preferences;

    @Override
    public void onCreate() {
        myServiceReceiveraktivite = new MyServiceReceiver_aktivite();
        myServiceThread_aktivite = new MyServiceThread_aktivite();
        preferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext().getApplicationContext());
        super.onCreate();
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        IntentFilter intentFilter = new IntentFilter();
        intentFilter.addAction(ACTION_MSG_TO_SERVICE_aktivite);
        intentFilter.addAction(ACTION_DURAKLAT_aktivite);
        intentFilter.addAction(ACTION_BASLAT_aktivite);
        registerReceiver(myServiceReceiveraktivite, intentFilter);
        mChronometer = new Chronometer(this);
        //mChronometer.setBase(SystemClock.elapsedRealtime());
        mChronometer.setBase( SystemClock.elapsedRealtime() - Long.parseLong(preferences.getString("aktivite_fark", "")));
        myServiceThread_aktivite = new MyServiceThread_aktivite();
        myServiceThread_aktivite.start();
        showNotification(getApplicationContext());
        return super.onStartCommand(intent, flags, startId);
    }

    @Override
    public void onDestroy() {
        //Toast.makeText(getApplicationContext(),"onDestroy", Toast.LENGTH_SHORT).show();
        myServiceThread_aktivite.setRunning(false);
        unregisterReceiver(myServiceReceiveraktivite);
        super.onDestroy();
    }

    public class MyServiceReceiver_aktivite extends BroadcastReceiver {

        @Override
        public void onReceive(Context context, Intent intent) {

            String action = intent.getAction();
            if (action.equals(ACTION_MSG_TO_SERVICE_aktivite)) {
                String msg = intent.getStringExtra(KEY_MSG_TO_SERVICE_aktivite);
                //Toast.makeText(getApplicationContext(), "Mesaj geldi", Toast.LENGTH_LONG).show();
                msg = new StringBuilder(msg).reverse().toString();
                myServiceThread_aktivite.setRunning(false);
                myServiceThread_aktivite.running = false;
                Intent i = new Intent();
                i.setAction(ACTION_UPDATE_MSG_aktivite);
                i.putExtra(KEY_STRING_FROM_SERVICE_aktivite, msg);
                sendBroadcast(i);
            } else if (action.equals(ACTION_BASLAT_aktivite)) {
                mChronometer.setBase(SystemClock.elapsedRealtime() - Long.parseLong(preferences.getString(prefe_sure_adi, "")));
                myServiceThread_aktivite = new MyServiceThread_aktivite();
                myServiceThread_aktivite.setRunning(false);
                myServiceThread_aktivite.running = false;
                myServiceThread_aktivite.setRunning(true);
                myServiceThread_aktivite.running = true;
                myServiceThread_aktivite.start();

            }
        }
    }
    private class MyServiceThread_aktivite extends Thread {

        private boolean running;

        public void setRunning(boolean running) {
            this.running = running;
        }

        @Override
        public void run() {
            cnt = 0;
            running = true;
            while (running) {
                try {
                    Thread.sleep(1000);
                    String saat = "";
                    long elapsedMillis = SystemClock.elapsedRealtime()
                            - mChronometer.getBase();
                    int hours = (int) (elapsedMillis / 3600000);
                    int minutes = (int) (elapsedMillis - hours * 3600000) / 60000;
                    int seconds = (int) (elapsedMillis - hours * 3600000 - minutes * 60000) / 1000;
                    if (hours == 0) {
                        saat = "";
                    } else {
                        saat = checkDigit(hours) + ":";
                    }
                    sayac_txt = saat + checkDigit(minutes) + ":" + checkDigit(seconds);
                    Intent intent = new Intent();
                    intent.setAction(ACTION_UPDATE_CR_aktivite);
                    //intent.putExtra(KEY_INT_FROM_SERVICE_aktivite, String.valueOf(sayac_txt));
                    intent.putExtra(KEY_INT_FROM_SERVICE_aktivite, String.valueOf(elapsedMillis));
                    sendBroadcast(intent);
                    showNotification(getApplicationContext());
                    cnt++;
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        }
    }

    public String checkDigit(int number) {
        return number <= 9 ? "0" + number : String.valueOf(number);
    }

    private NotificationManager notifManager;
    public void showNotification(Context mContext)    {

        NotificationCompat.Builder mBuilder =
                new NotificationCompat.Builder(mContext.getApplicationContext(), channelid);
        Intent ii = new Intent(mContext.getApplicationContext(), aktivite.class);
        PendingIntent pendingIntent = PendingIntent.getActivity(mContext, 0, ii, 0);

        NotificationCompat.BigTextStyle bigText = new NotificationCompat.BigTextStyle();
        bigText.bigText(sayac_txt);
        bigText.setBigContentTitle(getString(R.string.yapilanaktivite)+preferences.getString("aktivite_alttur_isim", ""));
        bigText.setSummaryText(getString(R.string.aktivite));

        mBuilder.setContentIntent(pendingIntent);
        mBuilder.setSmallIcon(getNotificationIcon());
        mBuilder.setContentTitle(sayac_txt);
        mBuilder.setContentText(getString(R.string.yapilanaktivite)+preferences.getString("aktivite_alttur_isim", ""));
        //mBuilder.setPriority(Notification.DEFAULT_ALL);
        mBuilder.setStyle(bigText);
        mBuilder.setOnlyAlertOnce(true);  //güncelleme için kullanıldı
        mBuilder.setVisibility(1);  //kilit ekranı için kullanıldı

        NotificationManager mNotificationManager =
                (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);


        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            NotificationChannel channel = new NotificationChannel(channelid,
                    "Channel human readable title",
                    NotificationManager.IMPORTANCE_DEFAULT);
            channel.setSound(null, null);
            mNotificationManager.createNotificationChannel(channel);
        }

        startForeground(notifyid, mBuilder.build());

    }

    private int getNotificationIcon() {
        DAO db = new DAO(getApplicationContext());        db.open();
        final int imageResID = getResources().getIdentifier(db.tur_idden_arac_ismini_getir(preferences.getInt("aktivite_alttur", 1),"resim"), "drawable",
                getApplicationContext().getPackageName());

        boolean useWhiteIcon = (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP);
        return useWhiteIcon ? imageResID : imageResID;
    }

}