CountDownTimer Check every two seconds

Question

I have one CountDownTimer and i want to do an action for every two wasted seconds.

countdowntimer = new CountDownTimer(10000, 1) {

            @Override
            public void onTick(long millisUntilFinished) {


            }

            @Override
            public void onFinish() {




            }
        }.start();

For example when it starts time remaining = 10 seconds

When time remaining = 8 seconds I want to do an action

When time remaining = 6 seconds I want to do an action

and so on......

You could use a Handler. Check Handler @ http://stackoverflow.com/questions/17839419/android-thread-for-a-timer — Raghunandan, Mar 16 '14 at 17:16
@Raghunandan would this be necessary? `onTick()` runs on the `UI Thread` — codeMagic, Mar 16 '14 at 17:25
@codeMagic yes. Just my suggestion. Your suggestion will also work. Yes it runs on the UI thread. — Raghunandan, Mar 16 '14 at 17:27

score 3 · Accepted Answer · edited Jun 20 '20 at 09:12

3

Just check if it is divisible by 2.

@Override
public void onTick(long millisUntilFinished) {
      long seconds = millisUntilFinished/1000;
      if ((seconds % 2) == 0)
      {     // even number--do some action  }
}

This is assuming you are calling the onTick() every second like

countdowntimer = new CountDownTimer(10000, 1000) {

This is probably preferable for you

Setting it up to call every 2 seconds should also work and better but leaving the original answer in case someone needs to call onTick() more often

countdowntimer = new CountDownTimer(10000, 2000) {

then you could just do the action with every call to onTick()

CountDownTimer Docs

edited Jun 20 '20 at 09:12

Community

1
1

answered Mar 16 '14 at 17:24

codeMagic

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@noobProgrammer how do you know he downvoted? It was downvoted a long time back even before codeMagic answered. There is no way you can know who downvoted – Raghunandan Mar 16 '14 at 17:27
@ataulm you are absolutely correct. However, the `onTick()` will be called at certain intervals depending on how the constructor is set up. I am assuming it is being called every second. – codeMagic Mar 16 '14 at 17:35
that's for every 2 seconds? – noobProgrammer Mar 16 '14 at 17:38
See my updated answer. I didn't notice your constructor when I answered. The constructor takes a `long` for millis...not seconds. You are calling it right now every millisecond which probably isn't what you want. – codeMagic Mar 16 '14 at 17:40
1

@codeMagic I prefer the edited answer (+1); 1000ms is still divisible by 2 so the first answer wouldn't work - perhaps edit it to remove that portion (if you agree with my reasoning). – ataulm Mar 16 '14 at 17:40
1

@ataulm I prefer the edited answer also ;) I got a little hasty and the original answer would take more checks. – codeMagic Mar 16 '14 at 17:41
1

@ataulm I have edited to make it correct. I think I'm done screwing up for now :P Thanks for catching that – codeMagic Mar 16 '14 at 17:44

CountDownTimer Check every two seconds

1 Answers1

This is probably preferable for you