Pass url of image from Local Library - ios

Question

I am trying to display an image from the local library in another view using its url like so...
let myImgObj = messagesFromTheDisk[indexPath.row].images
print(myImgObj)
print(myImgObj[0].url)
Printing myImgObj gives [MyApp.ProductImage(url: assets-library://asset/asset.PNG?id=A636DA16-8C7C-4CC5-ADB3-E944DC24BDA1&ext=PNG)] and printing myImgObj[0].url gives assets-library://asset/asset.PNG?id=A636DA16-8C7C-4CC5-ADB3-E944DC24BDA1&ext=PNG
But when I try to show display this image its showing as null though there seems to be an url. I'm using the library SDWebImage to display the image like so...
cell.productImageView.sd_setImage(with: myImgObj[0].url, placeholderImage:UIImage(named: "sampleImg"))
What am I doing wrong...?

Answer 1

I set the image libary url nil and use the contentsOfFile to not catche the images in the disk so that immediate loading of images will be implemented and it works.However you must put the images not in .xcassettes folder but a separate group folder.
let bundlePath = Bundle.main.path(forResource: myImgObj, ofType: "jpg")
imageView.sd_setImage(with: nil, placeholderImage: UIImage(contentsOfFile: bundlePath!))

Answer 2

This is without SDWebImage as I don't it need for PHAssets. I am fetching assests from library from my custom album like this :
func fetchCustomAlbumPhotos( completion : (_ array : [PHAsset]) -> Void)
{
var assetCollection = PHAssetCollection()
var photoAssets = PHFetchResult<AnyObject>()
var arrayOfPHAsset = [PHAsset]()
let fetchOptions = PHFetchOptions()
fetchOptions.predicate = NSPredicate(format: "title = %#", CustomAlbum.albumName)
let collection:PHFetchResult = PHAssetCollection.fetchAssetCollections(with: .album, subtype: .any, options: fetchOptions)
if let _:AnyObject = collection.firstObject{
assetCollection = collection.firstObject!
}else {
completion([])
}
_ = collection.count
photoAssets = PHAsset.fetchAssets(in: assetCollection, options: nil) as! PHFetchResult<AnyObject>
photoAssets.enumerateObjects({(object: AnyObject!,
count: Int,
stop: UnsafeMutablePointer<ObjCBool>) in
if object is PHAsset{
let asset = object as! PHAsset
arrayOfPHAsset.append(asset)
}
})
completion(arrayOfPHAsset)
}
This is how I call it in my ViewController's viewDidLoad() method:
CustomAlbum().fetchCustomAlbumPhotos { (array) in
self.arrayOfPHAsset = array
self.collectionView.reloadData()
}
From that function i get arrayOfPHAsset and this is how I am displaying them in my collection view cellForItemAt method:
let asset : PHAsset = arrayOfPHAsset[indexPath.item]
Or convert your url to PHAsset
self.imageURL = (info[UIImagePickerControllerReferenceURL] as? NSURL)!
let asset = PHAsset.fetchAssetsWithALAssetURLs([imageUrl], options: nil).firstObject as! PHAsset
And request Image for that PHAsset
if asset.mediaType == .video{
cell.videoIndicatorImage.isHidden = false
}
cell.userImagesStoredInAlbum.alpha = 0
let imageSize = CGSize(width: asset.pixelWidth,height: asset.pixelHeight)
DispatchQueue.main.async {
PHImageManager.default().requestImage(for: asset, targetSize: imageSize, contentMode: .aspectFill, options: nil, resultHandler: {(result, info)in
if result != nil {
cell.userImagesStoredInAlbum.image = result
UIView .animate(withDuration: 0.5, delay: 0, options: .curveEaseIn, animations: {
cell.userImagesStoredInAlbum.alpha = 1
}, completion: { (succes) in
})
}
})
}