添加事件到系统日历

20120202153027468.jpg

1.这个是主要的方法添加事件到日历

1.参数一:事件名称
2.参数二:开始时间
3.参数三:结束时间
4.参数四:位置

+ (void)AddEventCalender:(NSString*)aEvent startDate:(NSDate*)startDate endDate:(NSDate*)endDate location:(NSString *)location
{
BOOL addEvent = [self getEventCalenderWithEventTitle:aEvent startDate:startDate];
if (addEvent) {
    return;
}

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

[eventDB requestAccessToEntityType:EKEntityTypeEvent completion:^(BOOL granted,
                                                                  NSError *error) {
    // handle access here
    EKEvent *myEvent  = [EKEvent eventWithEventStore:eventDB];
    myEvent.title     = aEvent;
//这个参数设置为NO,表示不是全天,YES为全天
    myEvent.allDay = NO;

    myEvent.startDate = startDate;
    
    myEvent.endDate   = endDate;
    myEvent.location = location;
    [myEvent setCalendar:[eventDB defaultCalendarForNewEvents]];
    NSError *err;
    [eventDB saveEvent:myEvent span:EKSpanThisEvent error:&err];
}];
}

2.用来判断是否已经添加到日历了

+(BOOL)getEventCalenderWithEventTitle:(NSString *)eventTitle startDate:(NSDate *)startDate{
EKEventStore* eventStore = [[EKEventStore alloc] init];
NSDate* ssdate           = [NSDate dateWithTimeIntervalSinceNow:-3600*24*90];//事件段，开始时间
NSDate* ssend            = [NSDate dateWithTimeIntervalSinceNow:3600*24*90];//结束时间，取中间
NSPredicate* predicate   = [eventStore predicateForEventsWithStartDate:ssdate
                                                             endDate:ssend
                                                           calendars:nil];//谓语获取，一种搜索方法
NSArray* events          = [eventStore eventsMatchingPredicate:predicate];//数组里面就是时间段中的EKEvent事件数组

for (EKEvent *event in events) {


    if ([event.title isEqualToString:eventTitle] && [event.startDate isEqualToDate:startDate]) {
        return YES;
    }
}
return NO;
}