Re: Concurrent loading of images?
Re: Concurrent loading of images?
- Subject: Re: Concurrent loading of images?
- From: João Varela via Cocoa-dev <email@hidden>
- Date: Fri, 8 May 2020 22:41:07 +0100
> I also read about the GCD's dispatch queues, but it seems to me that this
would not be the suitable approach since I always only have one task
running concurrently to the main thread.
>
> Why not? Dispatch queues are always available. (The main thread is simply
> a special queue.) You can run the background task by creating a single
> dispatch queue and then using dispatch_async to call a block that does the
> work. The end of the block would call dispatch_async back to the main queue
> and pass the image as a parameter.
I could not agree more with Jens. Great Central Dispatch has been a big
boon. Before GCD, I would not touch multithreaded code with a ten-foot
pole. Now I use it everyday and I can increase responsiveness as never
before. I would definitely take a look at it. You can load images with a
background thread and then when the loading is done you can dispatch it to
the main queue for display. It has never been so easy to do that.
João
>
>
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