Add Event into iphone Calendar

//Add Event kit framework

EventKit.framework

//import 

#import <EventKit/EventKit.h>

//Copy below code and enjoy

-(IBAction)AddEvent:(id)sender

{

    NSString *dateString = @"Jul 09,2014 00:00";

    

    //Create a formater

    NSDateFormatter *formater =[[NSDateFormatter alloc] init];

    [formater setDateFormat:@"MMM dd,yyyy HH:mm"];

    NSDate *startDate =[formater dateFromString:dateString];

    

    NSLog(@"current date %@",[NSDate date]);

    EKEventStore *store = [[EKEventStore alloc] init];

    [store requestAccessToEntityType:EKEntityTypeEvent completion:^(BOOL granted, NSError *error) {

        if (!granted) { return; }

        EKEvent *event = [EKEvent eventWithEventStore:store];

        event.title = @"My Birthday";

        event.startDate = startDate;//[NSDate date]; //today

        event.endDate = [event.startDate dateByAddingTimeInterval:60*60];  //set 1 hour meeting

        [event setCalendar:[store defaultCalendarForNewEvents]];

        NSError *err = nil;

        [store saveEvent:event span:EKSpanThisEvent commit:YES error:&err];

        NSString *savedEventId = event.eventIdentifier;  //this is so you can access this event later

    }];

    

}