What happens with unarchived objects?

Posted by Dane Man on Stack Overflow See other posts from Stack Overflow or by Dane Man
Published on 2010-06-17T01:31:55Z Indexed on 2010/06/17 1:42 UTC
Read the original article Hit count: 320

Filed under:

objective-c

|

ipad

|

crash

|

nskeyedarchiver

After I've unarchived an object with NSKeyedUnarchiver, I am able to use it like usual, but I am unable to re-archive it. When I try, it crashes.

[NSKeyedArchiver archiveRootObject:unarchivedObject toFile:fileName];

I tried looking in the developer resources in apple but I haven't seen a thorough explination of proper usage of NSKeyedArchiver. Please Help.

© Stack Overflow or respective owner

Related posts about objective-c

Blocking access to websites with objective-C / root privileges in objective-C

as seen on Stack Overflow - Search for 'Stack Overflow'
I am writing a program in Objective-C (XCode 3.2, on Snow Leopard) that is capable of either selectively blocking certain sites for a duration or only allow certain sites (and thus block all others) for a duration. The reasoning behind this program is rather simple. I tend to get distracted when I… >>> More
Objective-C with some Objective-C++, calling a normal c++ method "referenced from" problem

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I made an Objective-C project for the iPhone. I had only one cpp class, the soundEngine taken from some Apple demo. Now I'm trying to merge OpenFeint which is coded in Objective-C++. As soon as I drop in the code without even referring to it from my code, when I hit Build, my Objective-C code… >>> More
Add an objective @property attribute in objective-c

as seen on Stack Overflow - Search for 'Stack Overflow'
Does anyone know of a way to add additional attribute types to the @property keyword without modifying the compiler? Or can anyone think of another way to genericize getter/setter creation? Basically, I have a lot of cases in a recent project where it's handy for objects to lazily instantiate their… >>> More
ObjectiveC Syntax for Specifying Protocol Name in Method Argument

as seen on Stack Overflow - Search for 'Stack Overflow'
What's the ObjectiveC syntax for specifying a protocol as an argument in a method? Say I have 2 protocols, MyProtocol and MyProtocolCB: @protocol MyProtocolCB <NSObject> - (void) func; @end @protocol MyProtocol <NSObject> - (void) register:(MyProtocolCB*) cb; @end I'm receiving this… >>> More
ObjectiveC builtin template system ?

as seen on Stack Overflow - Search for 'Stack Overflow'
I am developing an iPhone application and I use HTML to display formatted text. I often display the same webpage, but with a different content. I would like to use a template HTML file, and then fill it with my diffent values. I wonder if ObjectiveC has a template system similar to ERB in Ruby. That… >>> More

Related posts about ipad

The Complete List of iPad Tips, Tricks, and Tutorials

as seen on How to geek - Search for 'How to geek'
The Apple iPad is the latest new toy, and we’ve put together a comprehensive list of every tip, trick, and tutorial that we could find to help you get the most out of it—and we’re even giving one away to one lucky reader. So read on! Note: We’ll be keeping this page updated as… >>> More
5 reason why you should upgrade to new iPad (3rd generation)

as seen on Tech Dreams - Search for 'Tech Dreams'
Apple released the new iPad, 3rd generation, couple of days ago and they will be available in stores from March 16 onwards. It’s the best tablet available in the market and for first time buyers it’s a no brainer to choose it. What about the iPad owners? Should they upgrade their iPad 2 to the… >>> More
iPad:Study basics for iPad development?

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello friends, sorry if this question is being repeated. May i know from where i can learn entire iPad development practice? Thank you. >>> More
iPad Implentation: the path from iPhone to iPad development

as seen on Stack Overflow - Search for 'Stack Overflow'
I am an iphone appplication developer. But i dont know anything about ipad applications. Please give me advice on how to transition. >>> More
Coolest iPad Apps: Top 71 Free iPad Apps

as seen on Internet.com - Search for 'Internet.com'
The best free iPad apps in news, entertainment, shopping and games. Plus: cool free iPad apps for office productivity and social networking. >>> More