This works:
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0),
^{});
On 2012-01-27, at 3:14 PM, Jens Alfke wrote:
> I'm really used to using -performSelector:withObject:afterDelay: to make
> something happen later. But I'd much rather use a block than a target/action.
> I can't find any API for this, however. Am I missing something? What I want
> is basically like
> PerformBlockAfterDelay(^{ …code here…}, 5.0);
>
> It looks like I should just call dispatch_async, but I'm unsure which
> dispatch queue to use. dispatch_get_main_queue only works for the main
> thread. Can I use dispatch_get_current_queue? I'm unsure of what this does
> when called on a background thread. The API docs say "If the call is made
> from any other thread, this function returns the default concurrent queue" …
> is that a queue associated with the thread's runloop, that's guaranteed to
> execute tasks on that thread?
>
> —Jens
>
>
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