如何从 Objective-C 中的 EKEvent 类中获取警报和警报属性？

Question

我已从设备及其属性中获取所有事件，但我无法在EKEvent 中获取警报和警报属性

NSPredicate *fetchCalendarEvents = [store predicateForEventsWithStartDate:currentDate endDate:eventDate calendars:nil];

eventList = [store eventsMatchingPredicate:fetchCalendarEvents];
calanderDict =[[NSMutableDictionary alloc]init];

for(int i=0; i < eventList.count; i++){
   NSLog(@"Event Title:%@", [[eventList objectAtIndex:i] title]);
   NSLog(@"Event StartDate:%@", [[eventList objectAtIndex:i] startDate]);
   NSLog(@"Event EndDate:%@", [[eventList objectAtIndex:i] endDate]);
   NSLog(@"Event Notes:%@", [[eventList objectAtIndex:i]lastModifiedDate]);
   NSLog(@"Event Notes:%@", [[eventList objectAtIndex:i]notes]);
   NSLog(@"Event Alarms:%@", [[eventList objectAtIndex:i]alarms]);
   NSLog(@"Event Alarms Alert:%@", [[eventList objectAtIndex:i]alertTitle]);
}

Answer 1

eventsMatchingPredicate 返回一个EKEvent 的数组。
事件的alarms 属性返回EKAlarm 的数组。

EKEvent / EKCalendarItem 没有属性 alertTitle

为了清楚地表明这是您使用快速枚举的代码

NSPredicate *fetchCalendarEvents = [store predicateForEventsWithStartDate:currentDate endDate:eventDate calendars:nil];

eventList = [store eventsMatchingPredicate:fetchCalendarEvents];
calanderDict = [[NSMutableDictionary alloc] init];

for (EKEvent *event in eventList) {
   NSLog(@"Event Title:%@", event.title);
   NSLog(@"Event StartDate:%@", event.startDate);
   NSLog(@"Event EndDate:%@", event.endDate);
   NSLog(@"Event Last Modified Date:%@", event.lastModifiedDate);
   NSLog(@"Event Notes:%@", event.notes);
   if (event.hasAlarms) {
      for (EKAlarm *alarm in event.alarms) {
          NSLog(@"Alarm AbsoluteDate:%@", alarm.absoluteDate);
          NSLog(@"Alarm Type:%@", alarm.type);
      }
   }
}