how can I get the data of cached images SDWebImage

ios swift sdwebimage
Tawfik Bouabid picture Tawfik Bouabid · Dec 28, 2016 · Viewed 12.4k times · Source

I'm using SDWebImage library to cache web images in my UICollectionView:

cell.packItemImage.sd_setImage(with: URL(string: smileImageUrl[indexPath.row]))

but I want to save the cached images locally in a file instead of downloading them again

FileManager.default.createFile(atPath: newPath, contents: Data(contentsOf:  URL(string: snapchildvalue[Constants.smiles.smileImageUrl] as! String)!), attributes: nil)

is there a way to get the data of cached images

Answer

Kaan Dedeoglu picture Kaan Dedeoglu · Dec 28, 2016

SDWebImage caches downloaded images automatically by default. You can use SDImageCache to retrieve images from the cache. There is a memory cache for the current app session, which will be quicker, and there is the disk cache. Example usage:

if let image = SDImageCache.shared().imageFromDiskCache(forKey: imageURL.absoluteString) {
//use image
}

if let image = SDImageCache.shared().imageFromMemoryCache(forKey: imageURL.absoluteString) {
//use image
}

Also make sure you import SDWebImage in your file. (If you're using Swift/Carthage, it will be import WebImage

Related questions

How to clear all cached images loaded from SDWebImage?

I have all images loaded on my app via SDWebImage. The downloading and caching works great, but I wanted to make a button that can clear all cached images in the entire app. I have a "Clear Cache" button as …

Read More
Set placeholder image only if image fails to load SDWebImage

I want to show the imageview's background color till the download is in progress and if the download fails or image is not available then i want to show a placeholder image. How can i achieve this? The main objective …

Read More
How to set default image when imageURL is empty using SDWebImage - Swift

I have the following code at cellForRowAt function: let url = URL(string: myurl!) cell.empPhoto.image? = (cell.empPhoto.image?.circle)! cell.empPhoto.image? = (cell.empPhoto.image?.rounded)! cell.empPhoto.sd_setImage(with: url) I'm using sd_setImage from SDWebImage to …

Read More