Re: Live updating user defaults from a prefpane to a running app
Re: Live updating user defaults from a prefpane to a running app
- Subject: Re: Live updating user defaults from a prefpane to a running app
- From: Lee Ann Rucker <email@hidden>
- Date: Wed, 14 Jul 2010 12:03:21 -0700
On Jul 14, 2010, at 9:20 AM, Greg Guerin wrote:
Shamyl Zakariya wrote:
If not, what's the best practice here? And if I were to use some
sort of apple event fired from the prefpane or some other technique
to let the app know its defaults have changed, how do I get the
user defaults controller in the headless app to apply the updates?
If I understand the question correctly, then when the signal is
received, your headless app calls -synchronize on the
NSUserDefaults. This assumes you don't have any shared-access
contention issues.
Yes. The app that writes the pref should call synchronize and send its
signal, then the app that reads calls synchronize when it receives it.
I have a pair of apps that do that; I use
NSDistributedNotificationCenter and the CF equivalent
CFNotificationCenterGetDistributedCenter for the signals.
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