PHAsset traps — how to get PHAsset file name?

manager.requestImage(for: asset, targetSize: size, contentMode: .aspectFit, options: options, resultHandler: { (uiImage, info) in
info[“ PHImageResultIsDegradedKey”]
let folder = FolderItem(title: title!, thumbnail: uiImage!, assets: album)
self.folders.append(folder)
})

this callback will call not once if the image is too big.

The first time will get you a smaller image. And the second time will give you the larger image.

info[“ PHImageResultIsDegradedKey”]

is the way to recognize duplicate callback.

2.

To get the actual image file name, we should get from

PHAssetResource.assetResources(for: photo)[0].originalFilename

is the better approach.