从我们的应用程序管理iPhone日历事件

Question

以下是我的代码。

NSLog(@"%@", thisEvent1.title); 

EKEvent *thisEvent  = [EKEvent eventWithEventStore:eventStore];

eventStore = [[EKEventStore alloc] init];

thisEvent = [EKEvent eventWithEventStore:eventStore];


NSDateFormatter *   dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"yyyy-MM-dd:HH:mm"];


NSDate * date = [[NSDate alloc] init];
date = [dateFormatter dateFromString:[itsStartDate objectAtIndex:indexPath.row]];
[date retain];

thisEvent.startDate = [dateFormatter dateFromString:[itsStartDate objectAtIndex:indexPath.row]];
thisEvent.endDate = [dateFormatter dateFromString:[itsEndDate objectAtIndex:indexPath.row]];
thisEvent.notes = [itsNotes objectAtIndex:indexPath.row];
thisEvent.title = [itsTitle objectAtIndex:indexPath.row];
thisEvent.location = [itsLocation objectAtIndex:indexPath.row];
// thisEvent.allDay = TRUE;
NSMutableArray *myAlarmsArray = [[NSMutableArray alloc] init];

EKAlarm *alarm1 = [EKAlarm alarmWithRelativeOffset:-[[itsAlertOne objectAtIndex:indexPath.row] intValue]]; // 1 Hour
// EKAlarm *alarm2 = [EKAlarm alarmWithRelativeOffset:-86400]; // 1 Day

[myAlarmsArray addObject:alarm1];
//[myAlarmsArray addObject:alarm2];

thisEvent.alarms = myAlarmsArray;
[myAlarmsArray release];

//setting the Reuccurence rule

NSString * test1 = [itsRecurrenceFrequency objectAtIndex:indexPath.row];

    BOOL isRecurrenceFrequencyExists = TRUE;

EKRecurrenceFrequency  recurrenceFrequency;

if ([test1 isEqualToString: @"EKRecurrenceFrequencyDaily"]) {
    recurrenceFrequency = EKRecurrenceFrequencyDaily;
}else if([test1 isEqualToString: @"EKRecurrenceFrequencyWeekly"]){
    recurrenceFrequency = EKRecurrenceFrequencyWeekly;
}else if([test1 isEqualToString: @"EKRecurrenceFrequencyMonthly"]){
    recurrenceFrequency = EKRecurrenceFrequencyMonthly;
}else if([test1 isEqualToString: @"EKRecurrenceFrequencyYearly"]){
    recurrenceFrequency = EKRecurrenceFrequencyYearly;
}else{
    isRecurrenceFrequencyExists = FALSE;
}

    if(isRecurrenceFrequencyExists){
        EKRecurrenceRule * recurrenceRule = [[EKRecurrenceRule alloc] 

                                     initRecurrenceWithFrequency:recurrenceFrequency
                                     interval:[[itsRecurrenceInterval objectAtIndex:indexPath.row]intValue]
                                     end:nil];
        if (thisEvent.endDate != nil) {
            EKRecurrenceEnd * end = [EKRecurrenceEnd recurrenceEndWithEndDate:thisEvent.endDate];
            recurrenceRule.recurrenceEnd = end;
        }else {
            thisEvent.endDate = thisEvent.startDate;
        }

        thisEvent.recurrenceRule = recurrenceRule;
        [recurrenceRule release];

    }
[thisEvent setCalendar:[eventStore defaultCalendarForNewEvents]];
NSError *err;


[eventStore saveEvent:thisEvent span:EKSpanFutureEvents error:&err]; 
NSLog(@"%@", thisEvent.eventIdentifier);
[self.eventsList addObject:thisEvent];

在这段代码中，我有我的日历事件的事件ID。

1. 现在我想用更改更新事件，但它没有更新先前创建的事件。

2. 第二，我需要知道是否可能捕获iPhone日历中所做的日历事件的更改，包括删除事件。

3. 我们可以使用事件ID删除日历事件吗？

如果有人知道答案，请帮助我。谢谢您的帮助。

敬礼， Dilip Rajkumar

- Dilip Rajkumar

Answer 1

可以通过以下方式创建事件：

[eventStore saveEvent:event span:EKSpanThisEvent error:&err]; 
   NSString* str = [[NSString alloc] initWithFormat:@"%@", event.eventIdentifier];
[arrayofCalIDs addObject:str];

您可以使用以下方式删除事件：

EKEventStore* store = [[[EKEventStore alloc] init] autorelease];
   EKEvent* event2 = [store eventWithIdentifier:[arrayofCalIDs objectAtIndex:i]];
if (event2 != nil) {  
  NSError* error = nil;
  [store removeEvent:event2 span:EKSpanThisEvent error:&error];
} 
[myPath release];

For Updating Event you cannot directly access any method as it is not available in iOS. So, you can do one thing for this. 
(1) First remove the event with eventID.
(2) Create new Event using the same information of the last deleted event.

- AppAspect

---

这真是个好主意，非常感谢你的帮助。我还有一个疑问，1. 我是否可以获取我们应用程序创建的事件，2. 如果用户使用 iPhone 日历编辑了我们应用程序创建的事件，当我们打开我们的应用程序时，我们是否可以获取修改后的事件。提前致谢。 - Dilip Rajkumar

你好，我们可以在这里做一件事情来管理活动创建。您可以拥有一个数据库或plist文件用于活动，它可以处理您的应用程序创建的所有活动。至于其他点，我会查看并尽快告诉您。 - AppAspect

是的，它正在运行，但我正在处理另一个任务，将在可能的情况下继续完成任务，也只有那时我才会遇到更多问题，感谢您的回复。一旦我完成，我会让您知道。再次感谢。 - Dilip Rajkumar

AppAspect.. 我又开始处理这个问题了。现在我能够做到一切，唯一的问题是当我删除一个事件时，eventEditViewController中的方法“EKEventEditViewActionDeleted”会被调用三次。请帮帮我。提前感谢您。 - Dilip Rajkumar