Re: progress bar not updating
Re: progress bar not updating
- Subject: Re: progress bar not updating
- From: Jens Alfke <email@hidden>
- Date: Sat, 08 Oct 2016 11:47:08 -0700
> On Oct 7, 2016, at 6:51 PM, Quincey Morris <email@hidden> wrote:
>
> Looking at the documentation a bit more carefully, though, I think it’s implicit. Each thread, it says, can have a “current” NSProgress object, but there can be parent-child relationships between NSProgress objects across thread boundaries. Thus, it’s perhaps not that any individual NSProgress object trampolines properties across thread boundaries, but that the parent-child communication is thread-safe.
That makes more sense to me. There are several places in the NSProgress docs where it says a method is KVO-compliant, and explicitly points out that this means the observer will be called on the same thread that changed the property.
—Jens
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