Problem in contact listener please help it's urgent!!!

Hi

In this code appClosed comes when we add new contact in phone book, i don't now what is the problem. this exe wait in back ground and any event comes in phonebook, HandleDatabaseEventL function listen, but ptint_int(4) not show 4 but 3 shows when exe invoke. Please help me, my requirement is that if any contact add or change in phone book, i want it contact id.

CContactReader :: CContactReader()
{

}
CContactReader::~CContactReader()
{

}

//==============================================================//
// Create instance of the CContactReader
//==============================================================//
CContactReader* CContactReader::NewLC()
{
CContactReader* self = new (ELeave) CContactReader();
CleanupStack::PushL(self);
self->ConstructL();
return self;
}

void CContactReader:: ConstructL()
{
print_int(1);
CContactDatabase* ContactDatabase = CContactDatabase::OpenL();

// Here iContactDatabaseObserver is a CContactDatabaseObserver pointer //
print_int(2);
CContactChangeNotifier* DatabaseNotifier =
CContactChangeNotifier::NewL(*ContactDatabase , iContactDatabaseObserver);
print_int(3);
}

void CContactReader::HandleDatabaseEventL(TContactDbObserverEvent aEvent)
{
print_int(4);

switch(aEvent.iType)
{
case EContactDbObserverEventContactAdded:
{
print_int(5);
}break;
case EContactDbObserverEventContactDeleted:
{
print_int(6);
}break;
case EContactDbObserverEventContactChanged:
{
print_int(7);
}break;
default:
break;

}
// Do Something
}