Countdown timer with pause and resume

Question

I want to do countdown timer with pause and restart.Now i am displaying countdown timer By implenting ontick() and onfinish().please help me out.HEre is th code for countdown timer

final CountDownTimer Counter1 = new CountDownTimer(timervalue1 , 1000)

     {
 public void onTick(long millisUntilFinished)

  {
            System.out.println("onTick method!"(String.valueOf(millisUntilFinished/1000)));long s1=millisUntilFinished;
  }

public void onFinish() 

{
            System.out.println("Finished!");
}

}

Answer 1

in onTick method..save the milliseconds left

   long s1=millisUntilFinished;

when you want to pause the timer use..

   Counter.cancel();

when you want to resume create a new countdowntimer with left milliseconds..

 timervalue=s1
  counter= new Counter1();
   counter.start();

See this link

Answer 2

I would add something to the onTick handler to save the progress of the timer in your class (number of milliseconds left).

In the onPause() method for the activity call cancel() on the timer.

In the onResume() method for the activity create a new timer with the saved number of milliseconds left.

Refer the below links

LINK

LINK

Answer 3

My first answer on stackOverFlow, hope it should help :) ... This is how I solved the problem, control timer from Fragment, Bottomsheet, Service, Dialog as per your requirement, keep a static boolean variable to control.

declare in your Activity:

long presetTime, runningTime;    
Handler mHandler =new Handler();    
Runnable countDownRunnable;
Toast toastObj;
public static boolean shouldTimerRun = true;
TextView counterTv;

In onCreate:

presetTime =60000L;
runningTime= presetTime;
//setting up Timer
countDownRunnable=new Runnable() {
       @Override
         public void run() {
          if (shouldTimerRun) //if false, it runs but skips counting
          {
                counterTv.setText(simplifyTimeInMillis(runningTime));
             if (runningTime==0) {
                 deployToast("Task Completed"); //show toast on task completion 
                }
             runningTime -= 1000;
             presetTime = runningTime; //to resume the timer from last position
          }
          mHandler.postDelayed(countDownRunnable,1000); //simulating on-tick
         }
    };
mHandler.post(countDownRunnable); // Start our CountdownTimer

Now, whenever you want to pause the timer change the value of shouldTimerRun false and to resume make it true.

@Override
    public void onResume() {
        super.onResume();
        shouldTimerRun=true;
    }

    @Override
    public void onPause() {
        super.onPause();
        shouldTimerRun=false;
        deployToast("Timer is paused !!");
    }

Helping methods: (can be skipped)

public static String simplifyTimeInMillis(long time) {

        String result="";
        long difference = time;
        long secondsInMilli = 1000;
        long minutesInMilli = secondsInMilli * 60;
        long hoursInMilli = minutesInMilli * 60;

        if (difference<1000){
            return "0";
        }

        if (difference>=3600000) {
            result = result + String.valueOf(difference / hoursInMilli) + "hr ";
            difference = difference % hoursInMilli;
        }
        if (difference>=60000) {
            result = result + String.valueOf(difference / minutesInMilli) + "m ";
            difference = difference % minutesInMilli;
        }
        if (difference>=1000){
            result = result + String.valueOf(difference / secondsInMilli) + "s";
        }

        return result;
    }

public void deployToast(String msg){
        if (toastObj!=null)
            toastObj.cancel();
        toastObj = Toast.makeText(mContext,msg,Toast.LENGTH_SHORT);
        toastObj.show();
    }