CODEWITHSUNDEEP
swiftcachingswift2ios9image-caching
Konstantinos Natsios
Konstantinos Natsios

Reputation: 2924

Swift 2 Parse and KingFisher cache images

I'm using KingFisher https://github.com/onevcat/Kingfisher

library so i can cache the images and if there is anyone familiar with it i want some hints. So i have the following code

let myCache = ImageCache(name: recipesClass.objectId!)
let queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)
let optionInfo: KingfisherOptionsInfo = [
    .DownloadPriority(0.5),
    .CallbackDispatchQueue(queue),
    .Transition(ImageTransition.Fade(1)),
    .TargetCache(myCache)
]
if  let imageFile = recipesClass[RECIPES_COVER] as? PFFile {

let URL = NSURL(string: imageFile.url!)!

cell.coverImage.kf_setImageWithURL(URL, placeholderImage: nil,
    optionsInfo: optionInfo,
    progressBlock: { receivedSize, totalSize in
        print("\(indexPath.row + 1): \(receivedSize)/\(totalSize)")
    },
    completionHandler: { image, error, cacheType, imageURL in
        print("\(indexPath.row + 1): Finished")
})

} else {
     cell.coverImage.image = UIImage(named:"logo")
}

When i first enter the View it loads normally the images with this good anymation. But i also have a refresh button which makes a query to Parse and it checks if there is any new Recipe and then it reloads the data from the collection view and it prints "Finished"

Does this means that it downloads the images again? Or it loads them from Cache??

I'm asking because it appends the images in a different way inside the cells rather than the first time that it loads.

Any idea?

P.S. what i want to do is that in each cell i want to cache the image with the object ID of each recipe so when the cell loads and it has the image cached with this unique object id, to load it from cache and not to download it.

Upvotes: 1

Views: 1227

Answers (1)

Chirag Patel
Chirag Patel

Reputation: 1481

try this code:

var imageView:UIImageView!    
let mCa = ImageCache(name: "my_cache")
    let imagePath = getImagePath("image url")
    imageView.kf_setImageWithURL(NSURL(string: imagePath)!,placeholderImage: UIImage(named: "DefaultImageName"),optionsInfo: [.TargetCache(mCa)])

Upvotes: 3

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