Mailing Lists: Apple Mailing Lists
Image of Mac OS face in stamp
 
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: NSKeyedArchiver -> NSDictionary?

the only way to get the data out in the form of a dictionary, is to ensure that the data you archive is an NSDictionary containing only values that can be stored in a plist.. so you don't really get any win doing it this way.

I'd suggest instead that you simply store your initial defaults as a plist in your application wrapper. You'll need to ensure that everything is able to be coded to a plist anyways for user defaults.

if you have a situation where you want to specify something that isn't easily encoded into defaults as an initial default value you could write a small tool that spits out that value only as an NSData encoded value - and then paste that hexdump into the plist value.. you'll need to decode it when you ask for the object value from NSUserDefaults anyways.


On Mar 24, 2004, at 3:07 AM, David Faden wrote:

Hi,

Is there an elegant way to convert the data encoded by an NSKeyedArchiver into a corresponding NSDictionary suitable for use with NSUserDefaults? I was hoping to be able to use an NSKeyedArchiver in building the default preferences for an app. The methods provided in Foundation seem tantalizingly close to providing what I want. The following code goes part of the way towards what seems to me an inelegant solution (basically "manually" decomposing the property list).

NSMutableData* data = [NSMutableData data];
NSKeyedArchiver* archiver = [[[NSKeyedArchiver alloc] initForWritingWithMutableData:data] autorelease];
NSString* xmlString = nil;
id propertyListDictionary;

[archiver setOutputFormat:NSPropertyListXMLFormat_v1_0];
//archive some stuff ...
[archiver finishEncoding];
xmlString = [[[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding] autorelease];
propertyListDictionary = [xmlString propertyList];
//...

Is there a nice way to go from an NSKeyedArchiver to an NSDictionary in a form suitable for use with NSUserDefaults?

Please CC replies to me as well as sending them to the list. (I have a backlog of around 6400 cocoa-dev messages to sort through currently :-)).

Thanks.

David
AIM: pitulx
_______________________________________________
cocoa-dev mailing list | email@hidden
Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/cocoa-dev
Do not post admin requests to the list. They will be ignored.
_______________________________________________
cocoa-dev mailing list | email@hidden
Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/cocoa-dev
Do not post admin requests to the list. They will be ignored.

References: 
 >NSKeyedArchiver -> NSDictionary? (From: David Faden <email@hidden>)



Visit the Apple Store online or at retail locations.
1-800-MY-APPLE

Contact Apple | Terms of Use | Privacy Policy

Copyright © 2007 Apple Inc. All rights reserved.