An image loading and caching framework for iOS clients

by iOS Example

ImagePipeline

Folio Image Pipeline is an image loading and caching framework for iOS clients.

Usage

let imagePipeline = ImagePipeline()
imagePipeline.shared.load(/* image URL */, into: /* image view */, transition: .fadeIn /* default is `.none`*/,
                          defaultImage: ..., failureImage: ...)

Example

override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath) as! Cell

    ImagePipeline.shared.load(urls[indexPath.row % 200],
                              into: cell.imageView,
                              transition: .fadeIn,
                              defaultImage: UIImage(named: "loading")!,
                              failureImage: UIImage(named: "failed")!)
    
    return cell
}

Resize

Aspect Fit (Default)

let resizer = ImageResizer(targetSize: CGSize(width: 400, height: 400))
ImagePipeline.shared.load(/* imageURL */, into: /* image view */, processors: [resizer])
Original Resized

Aspect Fill

let resizer = ImageResizer(targetSize: CGSize(width: 400, height: 400), contentMode: .aspectFill)
ImagePipeline.shared.load(/* imageURL */, into: /* image view */, processors: [resizer])
Original Resized

Resize & Blur

let scale: CGFloat = 2
let size = CGSize(width: 375 * scale, height: 232 * scale)
let resizer = ImageResizer(targetSize: size, contentMode: .aspectFill)
let filter = BlurFilter(style: .light)

ImagePipeline.shared.load(/* imageURL */, into: /* image view */, processors: [resizer, filter])
Original Blurred

TTL

ImagePipeline respects the max-age value of Cache-Control response header, and sets independent TTL for each image.

Supported content types

✅ PNG
✅ JPEG
✅ GIF
✅ WebP

GitHub