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我正在使用EventKit.framework来获取存储在EKEventStore.

我怎样才能只获得今天的事件,即从早上00:00晚上 11:59(00:00 到 23:59)。时区可能是任何东西。

我正在使用下面的代码,但它也在提供第二天的事件。它比今天的日期增加了 24 小时。

-(void) fetchEvents{
    NSDate *startDate = [NSDate date] ;

    //Create the end date components
    NSDateComponents *tomorrowDateComponents = [[NSDateComponents alloc] init];
    tomorrowDateComponents.day = 1;

    NSDate *endDate = [[NSCalendar currentCalendar] dateByAddingComponents:tomorrowDateComponents
                                                                    toDate:startDate
                                                                   options:0];
    // We will only search the default calendar for our events
    NSArray *calendarArray = [NSArray arrayWithObject:self.defaultCalendar];

    // Create the predicate
    NSPredicate *predicate = [self.eventStore predicateForEventsWithStartDate:startDate
                                                                      endDate:endDate
                                                             calendars:calendarArray];

    // Fetch all events that match the predicate
    NSMutableArray *events = [NSMutableArray arrayWithArray:[self.eventStore eventsMatchingPredicate:predicate]];
}

如何更改NSPredicate以上要求?

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1 回答 1

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如果你想要今天的事件,有很多方法可以做到,但你可以得到当前的日期/时间,然后让日历根据适当的小时、分钟和秒来设置开始和结束日期。

NSCalendar *calendar = [NSCalendar currentCalendar];
NSDate *now = [NSDate date];
NSDate *startDate = [calendar dateBySettingHour:0  minute:0  second:0  ofDate:now options:0];
NSDate *endDate   = [calendar dateBySettingHour:23 minute:59 second:59 ofDate:now options:0];

NSPredicate *predicate = [store predicateForEventsWithStartDate:startDate
                                                        endDate:endDate
                                                      calendars:nil];

NSArray *events = [store eventsMatchingPredicate:predicate];

如果你想endDate在第二天凌晨 12:00,你可以这样做:

NSDate *endDate = [calendar dateByAddingUnit:NSCalendarUnitDay value:1 toDate:startDate options:0];
于 2014-08-14T02:27:56.343 回答