iOS日期格式 [英] iOS Date formatting

问题描述

在美国地区使用该应用程序时，我需要格式化以下日期:1月1日，7月2日，11月28日

I need to have the following date formatted while using the application with an US locale: January 1st, July 2nd, November 28th

我应该怎么做?

用NSDateFormatter搜索，但是我无法设置适当的格式，并且默认格式太长.

Searched with NSDateFormatter, but I'm not able to set an appropriate format and default formats are too long.

推荐答案

NSDateFormatter *format = [[NSDateFormatter alloc] init];
[format setDateFormat:@"MMMM dd'st'"];

NSDate *now = [[NSDate alloc] init];

NSString *dateString = [format stringFromDate:now];
NSLog(@"%@",dateString);

这将为您提供所需的格式，但是您需要添加一些条件以添加适当的'st'，'nd'，'rd'等. 像这样

this will give you the required format but you need to add some condition to add proper 'st','nd','rd' etc. like this

这可能对您有帮助

NSDateFormatter *format = [[NSDateFormatter alloc] init];
[format setDateFormat:@"MMMM dd"];

NSDate *now = [[NSDate alloc] init];

NSString *dateString = [format stringFromDate:[now dateByAddingTimeInterval:(-60*60*24*10)]];
NSMutableString *tempDate = [[NSMutableString alloc]initWithString:dateString];
int day = [[tempDate substringFromIndex:[tempDate length]-2] intValue];
switch (day) {
    case 1:
    **case 21:
    case 31:**
        [tempDate appendString:@"st"];
        break;
    case 2:
    **case 22:**
        [tempDate appendString:@"nd"];
        break;
    case 3:
    **case 23:**
        [tempDate appendString:@"rd"];
        break;
    default:
        [tempDate appendString:@"th"];
        break;
}
NSLog(@"%@",tempDate);

这篇关于iOS日期格式的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！