Ios 如何使用我的应用设置提醒？

我已经在MBCalendar kit的帮助下创建了自定义日历，现在我已经添加了一些特定日期的事件，如何使用EKReminder为这些特定日期创建提醒？

- (void)createReminder:(NSDate*) objDate {
    EKReminder *reminder = [EKReminder
                            reminderWithEventStore:objEventStore];

    // objEventStore is the object of EKEventStore if you create that global that will be good

    reminder.title = @"title";
    reminder.notes = @"note";

    reminder.calendar = [objAppDelegate.eventStore defaultCalendarForNewReminders];

    EKAlarm *alarm = [EKAlarm alarmWithAbsoluteDate:objDate];

    [reminder addAlarm:alarm];

    NSError *error = nil;

    BOOL status  = [objAppDelegate.eventStore saveReminder:reminder commit:YES error:&error];
    if (status == NO) {
        _strUDID = nil;
    }
    else  {
        _strUDID = [NSMutableString stringWithFormat:@"%@",reminder.calendarItemIdentifier];
    }

}