不推荐使用NSDate dateFromString？ [英] NSDate dateFromString deprecated?

问题描述

我正在尝试使用NSDate dateFromString方法但是我收到警告并且它正在崩溃应用程序。代码如下所示：

I'm trying to use the NSDate dateFromString method but I'm getting an warning and it's crashing the app. The code looks like:

NSString *pickerDate = [NSString stringWithFormat:@"%@", timeSelector.date];
NSDate *defaultDate = [NSDate dateFromString:pickerDate];

警告是：

'NSDate' may not respond to '+dateFromString'.

看来该方法已被弃用（在从XCode 2升级到3的过程中。

It appears that method is deprecated (in the midst of an upgrade from XCode 2 to 3.

我可以用什么替代方法从字符串创建日期？

What alternate method can I use to create a date from a string?

推荐答案

NSDateFormatter 是从 NSString中获取 NSDate 的预期方式。

NSDateFormatter is the intended way for you to get an NSDate from an NSString.

最基本的用法是这样的：

The most basic usage is something like this:

NSString *dateString = @"3-Aug-10";

NSDateFormatter *dateFormatter = [[[NSDateFormatter alloc] init] autorelease];
dateFormatter.dateFormat = @"d-MMM-yy";

NSDate *date = [dateFormatter dateFromString:dateString];

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