alarmMgr = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(this, StepsReceiver.class);

boolean alarmUp = (PendingIntent.getBroadcast(this, 231, intent, PendingIntent.FLAG_NO_CREATE) != null);
if(!alarmUp) {
    alarmIntent = PendingIntent.getBroadcast(this, 231, intent, PendingIntent.FLAG_UPDATE_CURRENT);
    Calendar calendar = Calendar.getInstance();
    calendar.setTimeInMillis(System.currentTimeMillis());
    alarmMgr.setInexactRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_DAY, alarmIntent);
}