Android pool data sending using a service

Question

I have an app which will send 100 data to a web api. right now I am using a service which will run through a scheduler. My problem is that scheduler is starting again before the data sending completes. How can I pause my scheduler till my process completes.

 public class PollReceiver extends BroadcastReceiver {
 private static final int PERIOD=100000;
  @Override
  public void onReceive(Context ctxt, Intent i)
  {
scheduleAlarms(ctxt);
  }
  static void scheduleAlarms(Context ctxt)
   {
AlarmManager mgr=(AlarmManager)ctxt.getSystemService(Context.ALARM_SERVICE);
    Intent i=new Intent(ctxt, ScheduledService.class);
     PendingIntent pi=PendingIntent.getService(ctxt, 0, i, 0);
     mgr.setRepeating(AlarmManager.ELAPSED_REALTIME,SystemClock.elapsedRealtime() +     PERIOD, PERIOD, pi);
   }
     }

Schedule Reciever

    public ScheduledService()
    {
    super("ScheduledService");
}

@Override
protected void onHandleIntent(Intent intent) 
     {
    if (isOnline())
            {
        //Process Starts 
    }
}

Answer 1

Set a new schedule after sending completes. After first scedule is set, the next schedule is set by the service itself:

public class PollReceiver extends BroadcastReceiver {
    private static final int PERIOD=100000;

    @Override
    public void onReceive(Context ctxt, Intent i)
    {
            scheduleNextAlarm(ctxt);
    }

    static void scheduleNextAlarm(Context c)
    {
        AlarmManager mgr=(AlarmManager)c.getSystemService(Context.ALARM_SERVICE);
        Intent i = new Intent(c, ScheduledService.class);
        PendingIntent pi=PendingIntent.getService(c, 0, i, PendingIntent.FLAG_UPDATE_CURRENT);
        mgr.set(AlarmManager.ELAPSED_REALTIME, SystemClock.elapsedRealtime() + PERIOD, pi);
    }

    public static class ScheduledService extends IntentService{

        public ScheduledService() {
            super("scheduled_service");
        }


        @Override
        protected void onHandleIntent(Intent intent) {
            try{
            // do your work
            }catch (Exception e){
                e.printStackTrace();
            }finally {
                scheduleNextAlarm(this);
            }
        }
    }
}