> For what it's worth, the [sharedUserDefaultsController save:]
message is still
returning before performing the save, so if I send any other messages within
my savePrefs method, userDefaults will still contain the old value - I'm
beginning to wonder if this is a bug within NSUserDefaultsController.
As someone else suggested, it appears that the -save method uses a delayed
method call to update NSUserDefaults. Binding is a perfectly acceptable way
to do this. Alternatively, you can get the value directly from the defaults
controller, as it is always immediately changed there:
theValue = [[shared values] valueForKey:@"thevalue"];
You know, I could swear blind that I had already tried that, but I've
just done it now and it works! Maybe that's what comes of coding at
1am!
Some other suggestions: storing the shared defaults and controller is really
just a waste of memory. They won't change across invocations.
With the overhead of Objective C messaging, isn't it more efficient
to obtain once and store the shared defaults and controller for later
use? Admittedly, we're probably splitting hairs here with a very
small number of messages vs very small memory requirement, but I was
always taught that space is cheaper than time. If necessary, space
can be reclaimed whereas (cpu) time can't.
It would also be a good idea to keep your types consistent: a slider
expects to manipulate a numeric value, and as you see it stores its
value as a number in the prefs. Your object property should also be
an NSNumber, not an NSString.
Yes, that was just laziness on my part as I played around with this.
This particular app will never actually do anything, I was simply
trying to see how it will work when I start writing the preferences
routines for my real application. The types will definitely match
when I do it for that one! :)
M
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