如何提取Cocoa当前日期的数量？

Question

如何提取可可中当前月份的天数？ 这就是我如何做到这一点，但它返回像309420938420422 .. 谢谢！

-(int)getNumberOfCurrentDay:(NSDate*)date_ 
{ 
    NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar]; 

    NSDateComponents *comps = [gregorian components:NSMonthCalendarUnit fromDate:date_]; 
    NSInteger numberday = [comps day]; 

    NSLog(@"Number of the day %i", numberday); 


    return numberday; 
} 

Answer 1

尝试使用NSDayCalendarUnit而不是NSMonthCalendarUnit。或执行以下操作以获得更多的（日，月，年，时，分，秒等）：

int comp = NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit; 
NSDateComponents *theDateComponents = [gregorian components:comp fromDate:date_]; 
int day = [theDateComponents day]; 

希望它可以帮助

Answer 2

您需要使用：NSDayCalendarUnit

-(int)getNumberOfCurrentDay:(NSDate*)date_ 
{ 
    NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar]; 

    NSDateComponents *comps = [gregorian components:NSDayCalendarUnit fromDate:date_]; 
    NSInteger numberday = [comps day]; 

    NSLog(@"Number of the day %d", numberday); 


    return numberday; 
}