What is the difference between dispatch_queue and NSOperationQueue?

Asked Mar 23 '16 at 12:23

Active Mar 23 '16 at 12:23

Viewed 43 times

I want to understand difference between dispath_queue and NSOperationQueue, when I can to write my code as:

let queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)
    dispatch_async(queue) { () -> Void in

        let img1 = Downloader.downloadImageWithURL(imageURLs[0])
        dispatch_async(dispatch_get_main_queue(), {
            self.imageView1.image = img1
        })

    }

and as:

queue = NSOperationQueue()

queue.addOperationWithBlock { () -> Void in
    let img4 = Downloader.downloadImageWithURL(imageURLs[3])

    NSOperationQueue.mainQueue().addOperationWithBlock({
        self.imageView4.image = img4
    })

}

So, what is the difference between these 2 blocks? If it's possible, describe it for me, please

asked Mar 23 '16 at 12:23

John Doe

1

http://stackoverflow.com/questions/10373331/nsoperation-vs-grand-central-dispatch – Ujjwal Khatri Mar 23 '16 at 12:26
`NSOperationQueue` has extra features that are sometimes useful, such as cancellation and being able to look at the operation count. – Phillip Mills Mar 23 '16 at 12:27
Please search your query before putting a new question. Thanks. – Ujjwal Khatri Mar 23 '16 at 12:31
@PhillipMills so it does not matter what I will use, yes? They have the same effect? – John Doe Mar 23 '16 at 12:32

What is the difference between dispatch_queue and NSOperationQueue?

0 Answers0