iOS从当前日期开始一个月。

Question

我想从当前日期开始一个月。

以下是我所拥有的并且它正在返回：4027-09-24 16:59:00 +0000。 currentDate是对的。这是怎么回事？

// Get todays date to set the monthly subscription expiration date
NSDate *currentDate = [NSDate date];
NSLog(@"Current Date = %@", currentDate);
NSDateComponents *dateComponents = [[NSCalendar currentCalendar] components:NSMonthCalendarUnit | NSDayCalendarUnit | NSYearCalendarUnit fromDate:currentDate];
dateComponents.month = dateComponents.month + 1;
NSDate *currentDatePlus1Month = [[NSCalendar currentCalendar] dateByAddingComponents:dateComponents toDate:currentDate options:0];
NSLog(@"Date = %@", currentDatePlus1Month);

Answer 1

请改为尝试：

// Get todays date to set the monthly subscription expiration date
NSDate *currentDate = [NSDate date];
NSLog(@"Current Date = %@", currentDate);

NSDateComponents *dateComponents = [NSDateComponents new];
dateComponents.month = 1;

NSDate *currentDatePlus1Month = [[NSCalendar currentCalendar] dateByAddingComponents:dateComponents toDate:currentDate options:0];
NSLog(@"Date = %@", currentDatePlus1Month);

Answer 2

NSDate *currentDate = [NSDate date];

NSCalendar* calendar = [NSCalendar currentCalendar];

NSDateComponents* components = [calendar components:NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit fromDate:currentDate]; 
  // Get necessary date components

[components month]; //gives you month

[components day]; //gives you day

[components year]; //gives you year