predicateForEventsWithStartDate:endDate:calendars: EKEventStore doesn't work

问题

i have saved 28 EKEvent in a EKCalendar in this range date: 2012-01-01 and 2013-01-18, the EKEvent are all stored and i can see it in the iOS Calendar on iCloud, then i want retrieve all this EKEvent in the range 2012-01-01 and 2013-01-18 and i use this method of EKEventStore:

predicateForEventsWithStartDate:endDate:calendars:

that is a NSPredicate to fetch event in the calendar, i pass with start date 2012-01-01 and with endDate:2013-01-18 so the array that return me with the EKEvent have only 8 element, so my question is why it doesn't find me all 28 event? what i wrong?

EDIT:

this is the complete code i use:

NSDate* sourceDate2 = [dateFormat dateFromString:@"2012/01/01"];


    NSTimeZone* sourceTimeZone2 = [NSTimeZone timeZoneWithAbbreviation:@"GMT"];
    NSTimeZone* destinationTimeZone2 = [NSTimeZone systemTimeZone];

    NSInteger sourceGMTOffset2 = [sourceTimeZone2 secondsFromGMTForDate:sourceDate2];
    NSInteger destinationGMTOffset2 = [destinationTimeZone2 secondsFromGMTForDate:sourceDate2];
    NSTimeInterval interval2 = destinationGMTOffset2 - sourceGMTOffset2;

    NSDate* destinationDate2 = [[NSDate alloc] initWithTimeInterval:interval2 sinceDate:sourceDate2];

    NSTimeInterval time2 = floor([destinationDate2 timeIntervalSinceReferenceDate] / 86400.0) * 86400.0;

    NSDate *startDate = [NSDate dateWithTimeIntervalSinceReferenceDate:time2];

then i use the same code for create the 2013-01-18 date that is the endDate, then i do this:

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

NSPredicate *predicateEvent = [eventStore predicateForEventsWithStartDate:startDate endDate:endDate calendars:[eventStore calendarsForEntityType:EKEntityTypeEvent]];

NSArray *eventArray = [eventStore eventsMatchingPredicate:predicateEvent];

the eventArray contains only 8 elements...and where are the other 20? please i'm going crazy someone can help me?

回答1:

On your device, go to: Settings > Mail, Contacts, Calendars, and under the Calendars sub-section go to Sync > All Events. Not just events from the past 30, 60 days, etc.

来源：https://stackoverflow.com/questions/13812281/predicateforeventswithstartdateenddatecalendars-ekeventstore-doesnt-work

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ekeventstore