获取具体日期 - Objective c iphone

Question

我想在今天的45天内获得目标C-iphone的日期.我是客观C的新人:)

我知道我可以这样做:

NSString *dateStr = @"Tue, 16 April 2013 13:00:00 +0000";
NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];
[dateFormat setDateFormat:@"EE, d LLLL yyyy HH:mm:ss Z"];
NSDate *date = [dateFormat dateFromString:dateStr]; 
[dateFormat release];

但是,我不想要静态分配...它应该是动态的.每天我需要*date从今天开始变换45天的日期.

Answer 1

试试这种方式:

NSDate *today=[NSDate date];
NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier: NSGregorianCalendar];
NSDateComponents *components=[[NSDateComponents alloc] init];
components.day=45;
NSDate *targetDate =[calendar dateByAddingComponents:components toDate:today options: 0];