I’m trying to use performSelector:withObject:afterDelay: in my .mailbundle, but it hasn’t been working correctly. Using performSelector:withObject: works just fine, but once I add a delay, such as [self performSelector:@selector(mySelector) withObject:nil afterDelay:0.5];, the selector does not get called. I thought that maybe it had to do with the modes that are available through performSelector:withObject:afterDelay:inModes: and the fact that I’m running this in a .mailbundle, but after limited testing, that didn’t work either. Does anyone have any suggestions into getting this to work? Thanks!
Well, what is the thread doing after issuing that command? As long as you have a runloop which you are going to return to, this should work.
Is the any NSRunLoop
id currentRunLoop = [NSRunLoop currentRunLoop]; id defaultRunLoopModeArray = [NSArray arrayWithObject:NSDefaultRunLoopMode]; [currentRunLoop performSelector:@selector(mySelector) target:self argument:nil order:0 modes:defaultRunLoopModeArray];
If you just want a delayed perform, NSTimer is a safer way to do it:
[NSTimer scheduledTimerWithTimeInterval:0.5 target:self selector:@selector(myTimerHandler:) userInfo:nil repeats:NO];
As you can see, the only difference here is a dedicated method which is needed to handle timer firings.
What, exactly, is supposed to be the difference between using performSelector:withObject:afterDelay: and the above code snippets? They all accomplish the exact same thing and have the same limitations. – MikeAsh