Display image in UIimageView without interrupt main thread

Image display from URL

Some times we need to draw the UIView and also images due to that reason it will take some time to load from url and interrupt main thread .

due to that reason we need to make separate queue and store the images , and it will effect after the successfully loaded.

Need some steps to follow:

1: Define this method

var queue = OperationQueue()

1	var queue = OperationQueue()

2: Now define the operation count (size of queue)

var queue = OperationQueue()

1	var queue = OperationQueue()

3: Now its time to load the images from URL and set to image View.

 DispatchQueue.global(qos: .background).async {
    let operation1 = BlockOperation(block: {
        let data = try? Data(contentsOf: url)
        if data != nil{
        let img = UIImage(data: data!)
        OperationQueue.main.addOperation({
            banner.image = img
        })
        }
    })
    self.queue.addOperation(operation1)
    }

DispatchQueue.global(qos: .background).async {

let operation1 = BlockOperation(block: {

let data = try? Data(contentsOf: url)

if data != nil{

let img = UIImage(data: data!)

OperationQueue.main.addOperation({

banner.image = img

})

}

})

self.queue.addOperation(operation1)

}

note: here banner is UIimageView.

Kunal Prasad

I love to explore new things within and outside my field.

26 Oct, 2021
Updated by - Kushal Varshney
17 Feb, 2017
Updated by - Kunal Prasad

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Display image in UIimageView without interrupt main thread

Image display from URL

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