Alaram Manager in android

Alaram Manager in android

I'm having code which is to be run daily, for this I'm trying to use Alarm
manager. This is my code for triggering alarm.
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Intent i = new Intent(this, AlarmReciever.class);
PendingIntent pi = PendingIntent.getService(this, 0, i, 0);
AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE);
am.cancel(pi); // cancel any existing alarms
am.setInexactRepeating(AlarmManager.ELAPSED_REALTIME,
SystemClock.elapsedRealtime() + AlarmManager.INTERVAL_DAY,
AlarmManager.INTERVAL_DAY, pi);
}
This part of code is calling AlarmReciever class as expected, but I want
the code in AaramReciever class to be executed once daily. But its being
called multiple times. How do I restrict it?