> On Oct 12, 2023, at 04:54, Gabriel Zachmann via Cocoa-dev > <cocoa-dev@lists.apple.com> wrote: > > Now, under Sonoma (14.0), I have an issue with the settings (user defaults) > of my screen saver, again. > > I go into System Settings, change some settings of my screen saver, they take > effect immediately in the little Preview window in SysSettings, but when I > click on "Preview" or let the screen saver come on automatically, the new > settings are *not* in effect. > > From one user, I heard that the new settings take effect only after rebooting. > > So, maybe, something has changed in the way macOS 14.0 handles the > NSUserDefaults, and/or maybe I make an error with using the API. Maybe there > is a bug in macOS 14.0 ? > > Below you can find a recap of how I handle the settings using NSUserDefaults. > Interestingly, the same code works fine in a regular app (not screensaver). > > My screensaver stores different settings for different monitors in the > [NSUserDefaults standardUserDefaults]. > To do so, I generate > defaults_ = [NSUserDefaults standardUserDefaults]; > > Then, I create a dictionary containing the default settings and register > them, like this: > > NSDictionary * monitor_defaults = [NSDictionary > dictionaryWithObjectsAndKeys: defaultsForMonitor, displayname, nil ]; > [defaults_ registerDefaults: monitor_defaults]; > NSDictionary * monitor_user_prefs = [defaults_ dictionaryForKey: > displayname]; > > Then, I read the actual values from monitor_user_prefs. > > When the user changes a setting, I do the inverse, like this: > > .. create a new dictionary monitor_user_prefs, containing all the key/value > pairs of the settings .. > [defaults_ setObject: monitor_user_prefs forKey: displayName_]; > bool success = [defaults_ synchronize];
registerDefaults isn't doing what you think it's doing. Read its docs more carefully. And there's no need to call synchronize. The docs clearly point that out: "this method is unnecessary and shouldn't be used." To set a new default, simply use setObject:forKey:. To read them, simply use objectForKey: or dictionaryForKey:, since you're using one. What you haven't shown is how you're coming up with a screen name. Are you sure it's the same every time for each screen? Also, you *are* using the correct NSUserDefaults object, yes? NSUserDefaults* defaults = [ScreenSaverDefaults defaultsForModuleWithName:@"com.yourcompany.yourscreensaver"]; -- Steve Mills Drummer, Mac geek _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
