On Aug 22, 2011, at 5:05 PM, Ian was here wrote: > I have a suite of apps that send distributed notifications to each other. I > have two apps in particular: > > 1) App A will launch app B. > 2) App B will then send a distributed notification to app A when it has > finished with its initialization. > 3) App A can then proceed. > > > In Mac OS X 10.4, 10.5, and 10.6, this behavior is as expected. However, in > OS X 10.7.1 it is not. The following scenario occurs: > > 1) App A will launch app B. > 2) App B will then send a distributed notification to app A when it has > finished with its initialization. > 3) App A will do nothing until it comes into focus. Only then will the method > receiving the notification be called. > > I read the 10.7 documentation and there are permission differences, but the > permission settings on the apps themselves are still the same as on the 10.6 > Mac. I Googled this as well and no one else seems to have had this issue. > > Does anyone know what's going on here? Why can't an app receive a distributed > notification if it does not have focus?
See the documentation for -[NSDistributedNotificationCenter setSuspended:] about the fact that NSApplication automatically suspends notification delivery and this note in the Lion Foundation release notes <http://developer.apple.com/library/mac/#releasenotes/Cocoa/Foundation.html>: > Distributed notification delivery > > If you want a posted distributed notification to be received immediately, be > sure you are passing the NSNotificationSuspensionBehaviorDeliverImmediately > suspension behavior flag when registering for the notification, or using the > NSNotificationDeliverImmediately flag when posting. Bugs in Mac OS X releases > prior to 10.7 meant that sometimes a distributed notification would get > delivered through to suspended observers, and not be properly queued, even > when those flags weren't used. Regards, Ken _______________________________________________ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
