在指定时间内运行Broadcastreceiver

Question

I am new to android, I want to run a task only for a specific duration, how can I do this? I tried using broadcast receiver and AlarmManager but the broadcastreceiver continuously runs even after specified time.

long timetorun= calendarcurrent.getTimeInMillis() - calendar.getTimeInMillis();
Intent c = new Intent(getApplicationContext(),
Phonecallreceiver.class); 
pintent = PendingIntent.getBroadcast(getApplicationContext(), 0, c, 0);
AlarmManager alarm = (AlarmManager) getSystemService(ALARM_SERVICE);
alarm.set(AlarmManager.RTC_WAKEUP, timetorun, pintent);

Answer 1

You can stop it by canceling the alarm, using the same PendingIntent like the below:

Intent c = new Intent(getApplicationContext(), Phonecallreceiver.class); 
pintent = PendingIntent.getBroadcast(getApplicationContext(), 0, c, 0);
AlarmManager alarm = (AlarmManager) getSystemService(ALARM_SERVICE); 
alarm .cancel(pintent);

Do not forget to make sure that the PendingIntent is not NULL. Hope that I helped you.