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我是 Xcode 的初学者，并搜索了以下代码以将事件添加到我的应用程序中的 ical 中。但是该示例仅向我展示了如何使用[[NSDate alloc] init];

我可以获得什么代码来设置我想要的日期，例如 20-12-2012？

谢谢你的时间。

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

EKEvent *myEvent  = [EKEvent eventWithEventStore:eventDB];

myEvent.title     = @"New Event";
myEvent.startDate = [[NSDate alloc]init ];

myEvent.endDate   = [[NSDate alloc]init ];
myEvent.allDay = YES;

[myEvent setCalendar:[eventDB defaultCalendarForNewEvents]];

NSError *err;

[eventDB saveEvent:myEvent span:EKSpanThisEvent error:&err]; 


    UIAlertView *alert = [[UIAlertView alloc]
                          initWithTitle:@"Event Created"
                          message:@"Yay!?"
                          delegate:nil
                          cancelButtonTitle:@"Okay"
                          otherButtonTitles:nil];
    [alert show];
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1 回答 1

2

正如您所发现的，将 NSDate 对象设置为非平凡日期是完全不平凡的。

有几种方法可以做到这一点。

1)

查看. _[NSDateFormatter dateFromString:]

2)

这是设置 2012 年 12 月 20 日的另一种方式。

NSCalendar * gregorian = [NSCalendar currentCalendar];
NSDate *currentDate = [NSDate dateWithTimeIntervalSinceReferenceDate: 0];
NSDateComponents *comps = [[NSDateComponents alloc] init];
[comps setYear: 11]; // 11 years past the reference date of 1-January-2001
[comps setMonth: 11]; // 11 months past January
[comps setDay:19]; // 19 days past the first day of January
NSDate *eventDate = [gregorian dateByAddingComponents:comps toDate:currentDate  options:0];

NSLog( @"event date is %@", [eventDate description] );
[comps release]; // NSDateComponents was explicitly alloc'd & init'd

myEvent.startDate = eventDate;
mtEvent.endDate = eventDate;
于 2011-11-07T14:07:56.110 回答