http://stackoverflow.com/questions/14814714/update-textview-every-second

https://examples.javacodegeeks.com/android/core/activity/android-timertask-example/

https://examples.javacodegeeks.com/android/core/os/handler/android-timer-example/

http://android.okhelp.cz/timer-task-timertask-run-cancel-android-example/

http://android--code.blogspot.fr/2015/10/android-how-to-repeat-task-periodically.html

android - How to repeat a task periodically
http://android-er.blogspot.fr/2011/09/use-handler-and-runnable-to-generate.html   ------------

http://android-er.blogspot.fr/2010/10/simple-example-of-alarm-service-using.html

periodic event


http://www.mkyong.com/java/how-to-run-a-task-periodically-in-java/

http://www.resolvinghere.com/sof/6242268.shtml

thread.sleep(60000)   

Timer timer = new Timer();


http://sriram-iyengar.blogspot.fr/2011/05/android-periodic-tasks.html


http://x-tutorials.blogspot.fr/2011/09/use-handler-and-runnable-to-generate.html    ------------------

http://cyrilmottier.com/2011/07/18/android-et-la-programmation-concurrente-partie-2/

http://blog.oroger.fr/blog/2012/11/06/android-repter-action-timer/

http://d-codepages.com/android-timertask-example/   -------------

http://v4all123.blogspot.fr/2013/01/timer.html  -----------------


public class JavaReminder {
    Timer timer;

    public JavaReminder(int seconds) {
        timer = new Timer();  //At this line a new Thread will be created
        timer.schedule(new RemindTask(), seconds*1000); //delay in milliseconds
    }

    class RemindTask extends TimerTask {

        @Override
        public void run() {
            System.out.println("ReminderTask is completed by Java timer");
            timer.cancel(); //Not necessary because we call System.exit
            //System.exit(0); //Stops the AWT thread (and everything else)
        }
    }

    public static void main(String args[]) {
        System.out.println("Java timer is about to start");
        JavaReminder reminderBeep = new JavaReminder(5);
        System.out.println("Remindertask is scheduled with Java timer.");
    }
}


Read more: http://javarevisited.blogspot.com/2013/02/what-is-timer-and-timertask-in-java-example-tutorial.html#ixzz436qnebn9


http://www.edumobile.org/android/timer-thread-example-in-android-programming/    ---------------------

Performing a Task Repeatedly 


http://blog.ajduke.in/2014/03/31/java-how-to-schedule-a-task-to-run-in-an-interval/    -----------------

http://android.okhelp.cz/timer-task-timertask-run-cancel-android-example/     -----------------

http://android.okhelp.cz/how-update-view-textview-with-timer-android-runnable-example/   ------

http://android-er.blogspot.fr/2011/09/use-handler-and-runnable-to-generate.html  --------

