我使用以下两种方法在设备日历中创建事件，事件是我的托管对象类。
+ (void)createCalendarEvents:(NSArray *)eventsArray
{
EKEventStore *eventStore = [[SharedLoader sharedInstance] eventStore];
NSLog(@"eventStore: %@",eventStore);
BOOL needsToRequestAccessToEventStore = NO; // iOS 5 behavior
if ([[EKEventStore class] respondsToSelector:@selector(authorizationStatusForEntityType:)])
needsToRequestAccessToEventStore = ([EKEventStore authorizationStatusForEntityType:EKEntityTypeEvent] == EKAuthorizationStatusNotDetermined);
if (needsToRequestAccessToEventStore) {
[eventStore requestAccessToEntityType:EKEntityTypeEvent completion:^(BOOL granted, NSError *error) {
if (granted) {
dispatch_async(dispatch_get_main_queue(), ^{
for(Events *eventObject in eventsArray)
[self addEventToCalendar:eventObject forEventStoreObject:eventStore];
NSError *commitError;
if([eventStore commit:&commitError])
{
NSLog(@"Events commited to device calendar");
}
else
{
NSLog(@"Events could not be commited to device calendar: %@",[commitError localizedDescription]);
}
});
}
}];
}
else {
dispatch_async(dispatch_get_main_queue(), ^{
for(Events *eventObject in eventsArray)
[self addEventToCalendar:eventObject forEventStoreObject:eventStore];
NSError *commitError;
if([eventStore commit:&commitError])
{
NSLog(@"Events commited to device calendar");
}
else
{
NSLog(@"Events could not be commited to device calendar: %@",[commitError localizedDescription]);
}
});
}
}
+ (BOOL)addEventToCalendar:(Events *)eventObject forEventStoreObject:(EKEventStore *)eventStore
{
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc]init];
[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
[dateFormatter setLocale:[NSLocale currentLocale]];
NSString *date =[NSString stringWithFormat:@"%@", eventObject.eventStartDate];
NSPredicate *predicateForEventsOndate = [eventStore predicateForEventsWithStartDate: eventObject.eventStartDate endDate:[[NSDate alloc] initWithTimeInterval:600 sinceDate:[dateFormatter dateFromString:date]] calendars:nil]; // nil will search through all calendars
NSArray *eventsOnDate = [eventStore eventsMatchingPredicate:predicateForEventsOndate];
BOOL eventExists = NO;
EKEvent *existingEvent = nil;
for (EKEvent *eventToCheck in eventsOnDate) {
if ([eventToCheck.title isEqualToString:eventObject.eventTitle]) {
eventExists = YES;
existingEvent=eventToCheck;
break;
}
}
if (eventExists == NO) {
EKEvent *event = [EKEvent eventWithEventStore:eventStore];
event.title =[NSString stringWithFormat:@"%@",eventObject.eventTitle];
NSLog(@"calendar event: %@", event.title);
NSDateFormatter *tempFormatter = [[NSDateFormatter alloc]init];
[tempFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
[tempFormatter setLocale:[NSLocale currentLocale]];
NSString *dateandtime =[NSString stringWithFormat:@"%@",eventObject.eventStartDate];
NSLog(@"dateandtime: %@",dateandtime);
NSString *dateandtimeend =[NSString stringWithFormat:@"%@",eventObject.eventEndDate];
NSLog(@"dateandtime: %@",dateandtimeend);
event.location = [NSString stringWithFormat:@"%@",eventObject.eventVenue];;
event.startDate =[tempFormatter dateFromString:dateandtime];
event.endDate = [tempFormatter dateFromString:dateandtimeend];
event.notes =eventObject.eventPurpose;
/*[event addAlarm:[EKAlarm alarmWithAbsoluteDate:event.startDate]];
[event addAlarm:[EKAlarm alarmWithRelativeOffset:60.0f * -60.0f * 24]];
[event addAlarm:[EKAlarm alarmWithRelativeOffset:60.0f * -15.0f]];*/
[event setCalendar:[eventStore defaultCalendarForNewEvents]];
NSError *err;
if([eventStore saveEvent:event span:EKSpanThisEvent error:&err])
{
NSLog(@"New Event Saved Successfully");
return YES;
}
else
{
NSLog(@"New Event could not be saved: %@ %@",[err localizedDescription],err);
return NO;
}
}
else
{
existingEvent.title =[NSString stringWithFormat:@"%@",eventObject.eventTitle];
NSLog(@"calendar event: %@", existingEvent.title);
NSDateFormatter *tempFormatter = [[NSDateFormatter alloc]init];
[tempFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
[tempFormatter setLocale:[NSLocale currentLocale]];
NSString *dateandtime =[NSString stringWithFormat:@"%@",eventObject.eventStartDate];
NSLog(@"dateandtime: %@",dateandtime);
NSString *dateandtimeend =[NSString stringWithFormat:@"%@",eventObject.eventEndDate];
NSLog(@"dateandtime: %@",dateandtimeend);
existingEvent.location = [NSString stringWithFormat:@"%@",eventObject.eventVenue];;
existingEvent.startDate =[tempFormatter dateFromString:dateandtime];
existingEvent.endDate = [tempFormatter dateFromString:dateandtimeend];
existingEvent.notes =eventObject.eventPurpose;
/*[existingEvent addAlarm:[EKAlarm alarmWithAbsoluteDate:existingEvent.startDate]];
[existingEvent addAlarm:[EKAlarm alarmWithRelativeOffset:60.0f * -60.0f * 24]];
[existingEvent addAlarm:[EKAlarm alarmWithRelativeOffset:60.0f * -15.0f]];*/
[existingEvent setCalendar:[eventStore defaultCalendarForNewEvents]];
NSError *err;
if([eventStore saveEvent:existingEvent span:EKSpanThisEvent error:&err])
{
NSLog(@"Old Event Updated & Saved Successfully");
return YES;
}
else
{
NSLog(@"Existing Event could not be saved: %@",[err localizedDescription]);
return NO;
}
}
}
我的事件已成功保存，而且我在设备日历上看到了这些事件，但事件发生在2001年，事件列表中的某些事件滚动后事件就消失了。需要帮助。