日期格式更改从 2013-12-30T14:59:00.+0000答案

【问题标题】：Date Format Change From 2013-12-30T14:59:00.+0000日期格式更改从 2013-12-30T14:59:00.+0000
【发布时间】：2014-02-03 18:14:41
【问题描述】：

我有一个来自服务器的日期格式为 2013-12-30T14:59:00.+0000 我想将其转换为格式 MMM dd,yyyy h:mm a

我的做法如下

NSDateFormatter *dateFormatter =[[NSDateFormatter alloc] init];
NSTimeZone *timeZone = [NSTimeZone timeZoneWithAbbreviation:@"UTC"];
[dateFormatter setTimeZone:timeZone];
NSDate *dateFromString = [dateFormatter dateFromString:selectedDate];
if (dateFromString != nil) 
{
       [dateFormatter setDateFormat:@"MMM dd,yyyy h:mm a"];
       stringDateFromDate = [dateFormatter stringFromDate:dateFromString];
}

但“dateFromString”为 nil。

谁能帮帮忙

【问题讨论】：

标签： nsdateformatter

【解决方案1】：

在我看来，现在提出建议为时已晚。但我决定写。

为您查看此示例 selectedDate 字符串并执行以下操作：

NSString *selectedDate = @"2013-12-30T14:59:00.+0000";

// I donno what "T" means, that's just replace it to an empty string
selectedDate = [selectedDate stringByReplacingOccurrencesOfString:@"T" withString:@" "];

// get string without .+0000
NSRange range = [selectedDate rangeOfString:@"."];
selectedDate = [selectedDate substringToIndex:range.location];

NSString *stringDateFromDate;

NSDateFormatter *dateFormatter =[[NSDateFormatter alloc] init];
NSTimeZone *timeZone = [NSTimeZone timeZoneWithAbbreviation:@"UTC"];
[dateFormatter setTimeZone:timeZone];

// necessarily set this date format!
[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
NSDate *dateFromString = [dateFormatter dateFromString:selectedDate];

if (dateFromString != nil)
{
[dateFormatter setDateFormat:@"MMM dd,yyyy h:mm a"];
stringDateFromDate = [dateFormatter stringFromDate:dateFromString];
}

// That's all. Output your string.
NSLog(@"%@", stringDateFromDate);

【讨论】：