On Sep 22, 2009, at 3:03 AM, Rob Keniger wrote:
On 22/09/2009, at 2:31 AM, Michael Thon wrote:
NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
[nc addObserver:self
selector:@selector(sendNotification:)
name:@"NSMetadataQueryDidFinishGatheringNotification"
object:nil];
[myThread start];
In the sendNotification: method I send the notification to the
other thread using performSelector: onThread: however
sendNotification: is never even called. Either the notifications
are not, in fact being sent to the main thread or I'm doing
something else wrong. There is probably something basic about
threads or notifications that I don't understand but I have run out
of ideas about what to try next.
NSMetadataQueryDidFinishGatheringNotification is a string constant,
so you should use it directly and not put it inside the @"" string
literal container:
NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
[nc addObserver:self
selector:@selector(sendNotification:)
name:NSMetadataQueryDidFinishGatheringNotification
object:nil];
@Rob - thanks for pointing that out
I did find the problem - my thread needs a runloop in order to process
notifications. Following this fellow's blog post:
http://confuseddevelopment.blogspot.com/2006_10_01_archive.html
I added CFRunLoopRun(); after starting the metadataquery. Inside the
method that gets called to process the notification I added:
CFRunLoopStop(CFRunLoopGetCurrent ()); to stop the runloop.
_______________________________________________
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
