Re: NSDateFormatter vs. -setTimeZone: ?
Re: NSDateFormatter vs. -setTimeZone: ?
- Subject: Re: NSDateFormatter vs. -setTimeZone: ?
- From: mmalcolm crawford <email@hidden>
- Date: Wed, 18 Jan 2006 20:21:24 -0800
On Jan 18, 2006, at 7:51 PM, Jim Correia wrote:
Is it expected that -setTimeZone: is ignored for NSDateFormatters
not using the 10.4 behavior?
Yes:
"With Mac OS X version 10.4 and later, NSDateFormatter has two modes
of operation (or behaviors). By default, instances of NSDateFormatter
have the same behavior as they did on Mac OS X versions 10.0 to 10.3.
You can, however, configure instances (or set a default for all
instances) to adopt a new behavior implemented for Mac OS X version
10.4. See Data Formatting Programming Guide for Cocoa(*) for a full
description of the old and new behaviors."
(<http://developer.apple.com/documentation/Cocoa/Reference/Foundation/
ObjC_classic/Classes/NSDateFormatter.html>)
(*) ->
<http://developer.apple.com/documentation/Cocoa/Conceptual/
DataFormatting/Articles/dfDateFormatting10_4.html#//apple_ref/doc/uid/
TP40002369>
"The new methods in 10.4 do not do anything when invoked on a 10.0-
style formatter, and return a generic return value when required to
return something—you should therefore not invoke the new methods on a
10.0-style formatter. On a 10.4-style formatter, the old methods map
approximately to one or more new methods or attributes, but you
should use the new methods directly when possible."
mmalc
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