> Le 18 déc. 2019 à 20:10, Carl Hoefs via Cocoa-dev <cocoa-dev@lists.apple.com>
> a écrit :
>
>
>
>> On Dec 18, 2019, at 11:35 AM, James Walker via Cocoa-dev
>> <cocoa-dev@lists.apple.com> wrote:
>>
>> On 12/18/19 9:55 AM, Carl Hoefs via Cocoa-dev wrote:
>>
>>> However, I cannot get this notification to fire on system time changes. My
>>> other notifications (such as sleep wake, etc) do fire.
>>> -Carl
>>> [[[NSWorkspace sharedWorkspace] notificationCenter] addObserver: self
>>> selector: @selector(systemTimeChanged:)
>>> name: NSSystemClockDidChangeNotification object: NULL];
>>> -(void) systemTimeChanged: (NSNotification *) notification
>>> {
>>> NSLog(@"-systemTimeChanged: %@", [notification name]);
>>> }
>>
>> I'm not sure what that workspace notification center is for. Maybe try
>> [NSNotificationCenter defaultCenter].
>
>
> Thanks for the suggestion. Apple docs have [[[NSWorkspace sharedWorkspace]
> notificationCenter] in their code snippets. But [NSNotificationCenter
> defaultCenter] doesn't work either. Very odd. Might there be some way in
> Xcode or Console to see what notifications are being fired?
>
Workspace Notification Center is only for workspace specific notifications. All
other notifications are send on the default Notification Center only.
I just did test, and I properly receive notifications on each time change in
the System preferences.
> -Carl
>
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