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Re: NSUserDefaults from within a bundle

On Jul 2, 2006, at 9:17 AM, Benjamin Einstein wrote:
It seems storing user preferences in an application's bundle is a scary concept to most, if it's even possible. We have an application that's stored on the network, is copied from the server to the local machine via another application, and then launched by that application. The application can also be used offline. We would really prefer to have global, "traveling" preferences that are embedded in the application bundle but can be modified locally (don't worry about rights, you must be a system admin and an application admin to make preferences changes). Is there a way to use NSUserDefaults to do this? Maybe CFPreferences? I can read a pre- compiled plist in the bundle using NSBundle, but I have no idea how to write and load specific key values. Any ideas?

There's one major catch: the application would have to be copied back when the user quits so other users get their updated preferences. Hmmmm. It would be okay unless the write failed.

Writing to the app wrapper isn't a scary concept. It is flat out wrong behavior for many reasons; security, system maintenance, etc...

I would assume your "master application" has some automated mechanism for copying around the embedded application? Why not carry a plist along with that application? Store it in ~/Library/Application Support/YourApplication/.

There isn't anything particularly special about user defaults beyond the ability to persist defaults in a standard location. The actual data is managed through a property list; NSDictionary, NSArray, etc... You could easily create a "settings controller" class that has an API similar to NSUserDefaults and persists to ~/Library/ Application Support/YourApplication/.

b.bum
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 >NSUserDefaults from within a bundle (From: Benjamin Einstein <email@hidden>)



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