iPhone：将来的当前日期定为60天

Question

我使用以下代码从当前日期+时间到30天未来。它工作正常。但是，我现在希望结束日期应该是60天，而不是30天。如何将以下代码更改为最多60天？我尝试将结束日期更改为[currentDateComponents month] +1，但它不起作用。有什么帮助吗？

NSDate *date = [NSDate date];

NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar]; 
NSDateComponents *currentDateComponents = [gregorian components:( NSWeekdayCalendarUnit | NSYearCalendarUnit | NSMonthCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit | NSWeekCalendarUnit) fromDate:date];
NSLog(@"- current components year = %d , month = %d , week = % d, weekday = %d", [currentDateComponents year], [currentDateComponents month], [currentDateComponents week], [currentDateComponents weekday]);

NSArray* calendars = [[CalCalendarStore defaultCalendarStore] calendars];
NSLog(@"calendars.count: %ld", [calendars count]);

debug(@"LogMsg:%@ Date:%@", @"Start looking for new events for pushing iCal to OfferSlot", [NSDate date]);

// 30 days any new or modified calendar (iCal) events will be pushed here to OfferSlot
NSInteger year = [[NSCalendarDate date]yearOfCommonEra];
NSDate *startdate = [NSCalendarDate dateWithYear:year month:[currentDateComponents month] day:1 hour:0 minute:0 second:0 timeZone:nil];
NSDate *enddate = [NSCalendarDate dateWithYear:year month:[currentDateComponents month] day:31 hour:23 minute:59 second:59 timeZone:nil];

Answer 1

您的代码并不总是按照您在文本中描述的那样执行。它会创建两个日期，一个在当月的开头，一个在月末（如果月份有31天，如果它少于31天，则endDate将在下个月）。如果您在每个月的第1天运行代码，它将创建一个未来30天的NSDate，但仅限于每个月的第1天。

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如果你真的想要获得60天后的NSDate，请使用以下代码：

NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *sixtyDaysOffset = [[NSDateComponents alloc] init];
sixtyDaysOffset.day = 60;
NSDate *sixtyDaysFromNow = [calendar dateByAddingComponents:sixtyDaysOffset toDate:[NSDate date] options:0];