使用NSDate的本地化日期（月和日）和时间

Question

我希望能够根据iPhone配置获取运行应用程序的本地日期和时间。具体而言，我需要日期格式为mm/dd或dd/mm（或dd.mm，mm.dd，dd-mm，mm-dd等），具体取决于语言环境，时间为hh：mm。这可能与一些SDK方法的组合？

谢谢！

Answer 1

好吧，我相信下面的代码工作为我所需要的：

NSString *dateComponents = @"yMMd"; 
NSString *dateFormat = [NSDateFormatter dateFormatFromTemplate:dateComponents options:0 locale:[NSLocale currentLocale]]; 
NSArray *tmpSubstrings = [dateFormat componentsSeparatedByString:@"y"]; 
NSString *tmpStr; 
NSRange r; 
if ([[tmpSubstrings objectAtIndex:0] length] == 0) { 
    r.location = 1; 
    r.length = [[tmpSubstrings objectAtIndex:1] length] - 1; 
    tmpStr = [[tmpSubstrings objectAtIndex:1] substringWithRange:r]; 
} else { 
    r.location = 0; 
    r.length = [[tmpSubstrings objectAtIndex:0] length] - 1; 
    tmpStr = [[tmpSubstrings objectAtIndex:0] substringWithRange:r]; 
} 
NSString *newStr = [[NSString alloc] initWithFormat:@"%@ H:mm", tmpStr]; 
NSDateFormatter *formatter = [[NSDateFormatter alloc] init]; 
[formatter setDateFormat:newStr]; 
NSString *formattedDateString = [formatter stringFromDate:[NSDate date]]; 

Answer 2

我已经修改了代码，以便它只是需要在不改变的日期和时间出的NSDate对象：

NSDate* date = [NSDate date]; 
NSString* datePart = [NSDateFormatter localizedStringFromDate: date 
                dateStyle: NSDateFormatterShortStyle 
                timeStyle: NSDateFormatterNoStyle]; 
NSString* timePart = [NSDateFormatter localizedStringFromDate: date 
                dateStyle: NSDateFormatterNoStyle 
                timeStyle: NSDateFormatterShortStyle]; 
NSLog(@"Month Day: %@", datePart); 
NSLog(@"Hours Min: %@", timePart);