使用NSDate的本地化日期（月和日）和時間

Question

我希望能夠根據iPhone配置獲取運行應用程序的本地日期和時間。具體而言，我需要日期格式爲mm/dd或dd/mm（或dd.mm，mm.dd，dd-mm，mm-dd等），具體取決於語言環境，時間爲hh：mm。這可能與一些SDK方法的組合？

謝謝！

Answer 1

好吧，我相信下面的代碼工作爲我所需要的：

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

我已經修改了代碼，以便它只是需要在不改變的日期和時間出的NSDate對象：

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);