我将重复事件(EKEvent)写入日历。如何在特定日期获取和修改其中一个重复事件?
事件是通过以下代码创建的:
+ (void) writeTestEvent{
EKEventStore *eventStore = [[EKEventStore alloc] init];
EKEvent *event = [EKEvent eventWithEventStore:eventStore];
event.calendar = [eventStore defaultCalendarForNewEvents];
event.title = @"Hello World!";
event.startDate = [NSDate date];
event.endDate = [NSDate date];
EKRecurrenceRule *recurrenceRule = [[EKRecurrenceRule alloc] initRecurrenceWithFrequency:EKRecurrenceFrequencyDaily interval:1 end:nil];
[event addRecurrenceRule:recurrenceRule];
[eventStore requestAccessToEntityType:EKEntityTypeEvent completion:^(BOOL granted, NSError *error) {
if (granted) {
BOOL isSaved = [eventStore saveEvent:event span:EKSpanFutureEvents commit:YES error:&error];
NSLog(@"isSaved: (%d) with error: %@", isSaved, error);
} else {
NSLog(@"not granted with error: %@", error);
}
}];
}
使用-predicateForEventsWithStartDate:endDate:calendars:
只会使事件落在日期范围内,而不是特定事件。使用事件标识符只能获得一个事件,但不能获取特定日期。
答案 0 :(得分:3)
重复事件标识符对于所有事件都是相同的。如果您希望区分事件,可能需要使用开始日期。
获取EKEvent特定重现的示例:
EventStore *eventStore = [[EKEventStore alloc] init];
NSPredicate *predicate = [eventStore predicateForEventsWithStartDate:startDate endDate:endDate calendars:calendars];
NSArray *results = [eventStore eventsMatchingPredicate:predicate];
for (int i = 0; i < results.count; i++) {
EKEvent *event = [results objectAtIndex:i]
if ([event. eventIdentifier isEqualToString: eventIdentifier]) {
// Match!!
break;
}
}