How to add CountDownTimer to RecyclerView items?

Question

Android

I need to show CountDown on every element. this is how i do it now

@Override
    public void onBindViewHolder(final MyViewHolder holder, int position) {
        final PromosGS promos = promos_List.get(position);
         
        CountDownTimer timer = new CountDownTimer(total_millis, 1000) {
                @Override
                public void onTick(long millisUntilFinished) {
                    long days = TimeUnit.MILLISECONDS.toDays(millisUntilFinished);
                    millisUntilFinished -= TimeUnit.DAYS.toMillis(days);

                    long hours = TimeUnit.MILLISECONDS.toHours(millisUntilFinished);
                    millisUntilFinished -= TimeUnit.HOURS.toMillis(hours);

                    long minutes = TimeUnit.MILLISECONDS.toMinutes(millisUntilFinished);
                    millisUntilFinished -= TimeUnit.MINUTES.toMillis(minutes);

                    long seconds = TimeUnit.MILLISECONDS.toSeconds(millisUntilFinished);
                    holder.promoDate.setText(days + "д" + " " + hours + "ч" + " " + minutes + "м" + " " + seconds + "с");
                }

                @Override
                public void onFinish() {
                    holder.promoDate.setText("Завершен");
                }
            };
}

Everything shows fine, but when updating or "onPause", the timer does not stop and in each element it doubles (this is only visible in the log).

Answer 1

and why the timer should stop, someone stops it?
and I'm not sure that the CountDownTimer uses the thread pool, I believe that it starts a new thread when it is created. if I were you, I would have one handler that would tick and run only through the visible elements of the list and update the necessary data for them.