Re: When does a Prefs file get created by the NSUserDefaults defaults system?
Re: When does a Prefs file get created by the NSUserDefaults defaults system?
- Subject: Re: When does a Prefs file get created by the NSUserDefaults defaults system?
- From: Fritz Anderson <email@hidden>
- Date: Fri, 29 Nov 2002 15:53:35 -0600
The code shown will not cause a preferences file to be created.
-[NSUserDefaults registerDefaults:] is there so you can provide values
for defaults in the "registration domain," which is the last-resort
place NSUserDefaults looks, if a default is not otherwise specified. In
other words, registerDefaults: specifies your _default_ preferences.
It's only when the user specifies non-default preferences, and you save
them into the application domain with -[NSUserDefaults
setObject:forKey:], that a preference file becomes necessary. It's
created then.
-- F
On Friday, November 29, 2002, at 03:15 PM, Rob Frohne wrote:
I'm having trouble with my application crashing when there has been a
Preferences file created. In trying to understand how things are
working and how they are supposed to work, I find that the following
code doesn't create a Preferences file, even on quitting the
application.
#import "test.h"
@implementation test
+ (void)initialize
{
//This doesn't seem to work.
NSUserDefaults *defaults = [NSUserDefaults
standardUserDefaults];
NSMutableDictionary *appDefs = [NSMutableDictionary
dictionary];
[appDefs setObject:@"NO" forKey:@"First Setting"];
[appDefs setObject:@"YES" forKey:@"Second Setting"];
[appDefs setObject:@"SNR" forKey:@"Third Setting"];
[defaults registerDefaults:appDefs];
}
@end
I had thought that it was supposed to set these values as the default
preferences, but I guess I'm wrong. Later in the program when I write
changes to say the "First Setting" in the defaults database, a
Preferences file is created, and it contains that value, but not the
others.
How is this supposed to work? Any ideas what I'm doing wrong?
--
Fritz Anderson - Consulting Programmer - Chicago, IL
Mail: <email@hidden>
Risumi: <
http://resume.manoverboard.org>
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