I am asking the same question as here I do not understand how to implement to solution. I have tried the following
fileprivate func fetchPhotos(indexSet: IndexSet) {
let allPhotos = PHAsset.fetchAssets(with: .image, options: assetsFetchOptions())
DispatchQueue.global(qos: .background).async {
allPhotos.enumerateObjects(at: indexSet, options: NSEnumerationOptions.concurrent, using: { (asset, count, stop) in
let imageManager = PHImageManager.default()
let targetSize = CGSize(width: 200, height: 200)
let options = PHImageRequestOptions()
options.isSynchronous = true
imageManager.requestImage(for: asset, targetSize: targetSize, contentMode: .aspectFit, options: options, resultHandler: { (image, info) in
if let image = image {
self.images.append(image)
self.assets.append(asset)
if self.selectedImage == nil {
self.selectedImage = image
}
}
DispatchQueue.main.async {
self.collectionView.reloadData()
self.hud.dismiss()
}
})
})
}
}
In cellForItemAt I tried doubling the indexes so the next 10 would load. The result i got was a never ending repetition of the first 10 posts. Can someone please show the proper way to use this.
Refinement and issues Resolved , Now below code Working fine
import Photos import PhotosUI
class PhotoGalleryPaginationViewController: UIViewController,UICollectionViewDataSource,UICollectionViewDelegate {
}
I tried to do what you want. I couldn't encapsulate it inside one function, coz it requires a few public variables, so here is the code for a UIViewController that has a UICollectionView which loads images by a page of 10 and when scrolled to the last cell it loads next 10 images and so on.