On Sep 8, 2009, at 4:24 PM, Jens Alfke wrote:
On Sep 8, 2009, at 4:13 PM, Sidney San Martín wrote:
"Because this method is automatically invoked at periodic
intervals, use this method only if you cannot wait for the
automatic synchronization (for example, if your application is
about to exit)"
To my knowledge that's always been incorrect — the only time
NSUserDefaults synchronizes automatically is upon quit. The app can
change a default, stay running for days, then crash; and the default
won't have been written to disk so the change is lost. So I've
always ended up calling -synchronize myself, either immediately or
using a perform-after-delay.
Automatic synchronization of changes to NSUserDefaults was added in
Leopard. CFPreferences may behave differently.
--
Greg Parker gpar...@apple.com Runtime Wrangler
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