Timer Android counter

Question

I'm trying to implement a Timer counter, but all that I see is CountDown and I don't want to count down time, I just want start from 00:00 and every second sum one second until 60:00, I've been trying to implement this :

1.-Android timer? How? - Answer

2.- Chronometer

And they didn't help me at all.. can you guide me how to start time from 00:00 and end in 60:00?

Answer here :

As Usama Zafar put his answer, I updated the code to control this CountDownTimer in case you'll need it...

I created

CountDownTimer cdtTimer;

Then the method I have to startTimer() that starts to count the time it's like this :

private void StartTimer(){
    final long EndTime   = 3600;
    cdtTimer = new CountDownTimer(EndTime*1000, 1000) {
        public void onTick(long millisUntilFinished) {
            long secondUntilFinished = (long) (millisUntilFinished/1000);
            long secondsPassed = (EndTime - secondUntilFinished);
            long minutesPassed = (long) (secondsPassed/60);
            secondsPassed = secondsPassed%60;
            tvCounterTimer.setText(String.format("%02d", minutesPassed) + ":" + String.format("%02d", secondsPassed));
        }

        public void onFinish() {
            tvCounterTimer.setText("done!");
        }
    }.start();
}

Then wherever I want to cancel this CountDownTimer I simply do

cdtTimer.cancel();

Do you mean you want to go upto 60 min or 60 sec? I am not sure if 00:00 is sec:milli or min:sec — usamazf, Mar 25 '16 at 11:12
@AndroidWannabe and this is absolute? Like you will always be going upto 60min:00sec? — usamazf, Mar 25 '16 at 11:16

usamazf · Accepted Answer · 2016-03-25T12:00:48.923

4

The simplest way to implement Timer is to obviously use CountDown as stated on Android's official guide:

 new CountDownTimer(30000, 1000) {

      public void onTick(long millisUntilFinished) {
          mTextField.setText("seconds remaining: " + millisUntilFinished / 1000);
      }

      public void onFinish() {
          mTextField.setText("done!");
      }
 }.start();

But as per your requirement you don't want to count down rather you wish to count up until you reach 60min mark. How can we do it is indeed an interesting question. You can try implementing a Runnable and get system time in milliseconds on each tick using: System.currentTimeMillis().

It tends to get complex right? So why not play with the CountDown Timer and make it work to our needs? How can we do it? Observe the below code:

 long StartTime = 0;    //Starting from 00:00
 long EndTime   = 3600;          //End at min:sec converted to seconds

 new CountDownTimer(EndTime*1000, 1000) {

      public void onTick(long millisUntilFinished) {
          long secondUntilFinished = (long) (millisUntilFinished/1000);
          long secondsPassed = (EndTime - secondUntilFinished);
          long minutesPassed = (long) (secondsPassed/60);
          secondsPassed = secondsPassed%60;
          // So now at this point your time will be: minutesPassed:secondsPassed
          mytextView.setText(String.format("%02d", minutesPassed) + ":" + String.format("%02d", secondsPassed));
      }

      public void onFinish() {
          mTextField.setText("done!");
      }
 }.start();

The code is very easy to understand. If you still have any queries comment them and I will address them. Hope this is helpful.

edited Mar 25 '16 at 12:00

answered Mar 25 '16 at 11:33

usamazf

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Thanks for the answer, if I want to show the progress I cna setText on onTick? I mean to show on a Textview something like 00:001 00:002 etc?... – StuartDTO Mar 25 '16 at 11:44
Yes that is why I put the comment there inside onTick(). You can put it to your textView by simply using the two variables minutesPassed and secondsPassed... If you find it helpful do mark it as an answer for others to benefit from it as well. – usamazf Mar 25 '16 at 11:49
no way to put 00:00 ? I mean with your code starts 0:0... 0:1 – StuartDTO Mar 25 '16 at 11:50
I mean I can't put the numbers like 00 01 02, 03? – StuartDTO Mar 25 '16 at 11:57
It's possible to make this CountdownTimer don't stop I mean forget the end at 60:00 just keep counting? – StuartDTO Mar 25 '16 at 11:59
Post it as a separate question as it is an answer to one specific query. – usamazf Mar 25 '16 at 12:00
Ok I give you the link? – StuartDTO Mar 25 '16 at 12:01
I faced with the problem that I have to stop the timer, and restart again, how do I save the values from the TextView and then Start agian the CountDownTimer with those values? – StuartDTO Apr 12 '16 at 16:10
@AndroidWannabe Ask a sperate question and let me know when you do. Its a different question. – usamazf Apr 12 '16 at 16:13
Posted it feel free to answer :) – StuartDTO Apr 12 '16 at 16:41

Timer Android counter

Answer here :

1 Answers1