Question

I m试图书写我的第一台手法,而Im则使用日子标,供用户进入出生日期。我的部分评估要求一年采用固定格式。我在前面添加了以下法典。奇怪的是,这个月获得了正确的价值。但白天和年似乎被MAX在“INT”号上(2147483647)。谁能告诉我我我我我什么是错的?

-(IBAction)dateOfBirthChanged:(id)sender {
    NSCalendar* calender = [NSCalendar currentCalendar];
    NSDateComponents* dateComponents = [calender components:NSMonthCalendarUnit fromDate:[datepicker date]];
    NSInteger day = [dateComponents day];
    NSInteger month = [dateComponents month];
    NSInteger year = [dateComponents year];
    label.text = [NSString stringWithFormat:@"Your year of birth is %d", year];
}

Answer 1

相反:

NSDateComponents *dateComponents = [calender components:(NSYearCalendarUnit | NSMonthCalendarUnit |  NSDayCalendarUnit) fromDate:[datepicker date]];

Ref: -components:Date:

友情链接