我想在两个日期之间生成一个随机日期,例如从今天到今天之间的随机日期.我怎么做?
UPDATE
使用答案中的信息,我想出了这种方法,我经常使用:
// Generate a random date sometime between Now and n days before day. // Also,generate a random time to go with the day while we are at it. - (NSDate *) generaterandomDateWithinDaysBeforetoday:(NSInteger)days { int r1 = arc4random_uniform(days); int r2 = arc4random_uniform(23); int r3 = arc4random_uniform(59); NSDate *today = [NSDate new]; NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar]; NSDateComponents *offsetComponents = [NSDateComponents new]; [offsetComponents setDay:(r1*-1)]; [offsetComponents setHour:r2]; [offsetComponents setMinute:r3]; NSDate *rndDate1 = [gregorian dateByAddingComponents:offsetComponents toDate:today options:0]; return rndDate1; }
解决方法
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