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fix iOS11 save image to album bug #141

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fix iOS11 save image to album bug #141

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149 changes: 97 additions & 52 deletions src/ios/PhotoLibraryService.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -513,56 +513,86 @@ final class PhotoLibraryService {
return
}

let assetsLibrary = ALAssetsLibrary()

func saveImage(_ photoAlbum: PHAssetCollection) {
assetsLibrary.writeImageData(toSavedPhotosAlbum: sourceData, metadata: nil) { (assetUrl: URL?, error: Error?) in

if error != nil {
completion(nil, "Could not write image to album: \(String(describing: error))")
return
func fetchAssets(_ photoId: String) {
let fetchResult = PHAsset.fetchAssets(withLocalIdentifiers: [photoId], options: nil)
var libraryItem: NSDictionary? = nil
if fetchResult.count == 1 {
let asset = fetchResult.firstObject
if let asset = asset {
libraryItem = self.assetToLibraryItem(asset: asset, useOriginalFileNames: false, includeAlbumData: true)
}
}
completion(libraryItem, nil)
}

guard let assetUrl = assetUrl else {
completion(nil, "Writing image to album resulted empty asset")
return
func saveImage(_ photoAlbum: PHAssetCollection) {

if #available(iOS 9.0, *) {
var localId: String = String()

PHPhotoLibrary.shared().performChanges({
let image = UIImage(data : sourceData)
let assetRequest = PHAssetChangeRequest.creationRequestForAsset(from: image!)
let albumChangeRequest = PHAssetCollectionChangeRequest(for: photoAlbum)
let placeHolder = assetRequest.placeholderForCreatedAsset
albumChangeRequest?.addAssets([placeHolder!] as NSArray)
localId = placeHolder!.localIdentifier;
}) { (isSuccess, error) in
if isSuccess {
fetchAssets(localId)
} else {
completion(nil,"Could not write video to album: \(String(describing: error))")
}
}

self.putMediaToAlbum(assetsLibrary, url: assetUrl, album: album, completion: { (error) in
} else {
let assetsLibrary = ALAssetsLibrary()

assetsLibrary.writeImageData(toSavedPhotosAlbum: sourceData, metadata: nil) { (assetUrl: URL?, error: Error?) in

if error != nil {
completion(nil, error)
} else {
let fetchResult = PHAsset.fetchAssets(withALAssetURLs: [assetUrl], options: nil)
var libraryItem: NSDictionary? = nil
if fetchResult.count == 1 {
let asset = fetchResult.firstObject
if let asset = asset {
libraryItem = self.assetToLibraryItem(asset: asset, useOriginalFileNames: false, includeAlbumData: true)
completion(nil, "Could not write image to album: \(String(describing: error))")
return
}

guard let assetUrl = assetUrl else {
completion(nil, "Writing image to album resulted empty asset")
return
}

self.putMediaToAlbum(assetsLibrary, url: assetUrl, album: album, completion: { (error) in
if error != nil {
completion(nil, error)
} else {
let fetchResult = PHAsset.fetchAssets(withALAssetURLs: [assetUrl], options: nil)
var libraryItem: NSDictionary? = nil
if fetchResult.count == 1 {
let asset = fetchResult.firstObject
if let asset = asset {
libraryItem = self.assetToLibraryItem(asset: asset, useOriginalFileNames: false, includeAlbumData: true)
}
}
completion(libraryItem, nil)
}
completion(libraryItem, nil)
}
})

})
}
}
}

if let photoAlbum = PhotoLibraryService.getPhotoAlbum(album) {
saveImage(photoAlbum)
return
}

PhotoLibraryService.createPhotoAlbum(album) { (photoAlbum: PHAssetCollection?, error: String?) in

guard let photoAlbum = photoAlbum else {
completion(nil, error)
return
}

saveImage(photoAlbum)

}

}

func saveVideo(_ url: String, album: String, completion: @escaping (_ url: URL?, _ error: String?)->Void) { // TODO: should return library item
Expand All @@ -582,36 +612,51 @@ final class PhotoLibraryService {
// return
// }
// UISaveVideoAtPathToSavedPhotosAlbum(videoURL.relativePath!, nil, nil, nil)

if #available(iOS 9.0, *) {
PHPhotoLibrary.shared().performChanges({
let assetRequest = PHAssetChangeRequest.creationRequestForAssetFromVideo(atFileURL: videoURL)!
let albumChangeRequest = PHAssetCollectionChangeRequest(for: photoAlbum)
let placeHolder = assetRequest.placeholderForCreatedAsset
albumChangeRequest?.addAssets([placeHolder!] as NSArray)
}) { (isSuccess, error) in
if isSuccess {
completion(videoURL, nil)
} else {
completion(nil, "Could not write video to album: \(String(describing: error))")
}
}
} else {
if !assetsLibrary.videoAtPathIs(compatibleWithSavedPhotosAlbum: videoURL) {

if !assetsLibrary.videoAtPathIs(compatibleWithSavedPhotosAlbum: videoURL) {

// TODO: try to convert to MP4 as described here?: http://stackoverflow.com/a/39329155/1691132

completion(nil, "Provided video is not compatible with Saved Photo album")
return
}

assetsLibrary.writeVideoAtPath(toSavedPhotosAlbum: videoURL) { (assetUrl: URL?, error: Error?) in
// TODO: try to convert to MP4 as described here?: http://stackoverflow.com/a/39329155/1691132

if error != nil {
completion(nil, "Could not write video to album: \(String(describing: error))")
completion(nil, "Provided video is not compatible with Saved Photo album")
return
}

guard let assetUrl = assetUrl else {
completion(nil, "Writing video to album resulted empty asset")
return
}
assetsLibrary.writeVideoAtPath(toSavedPhotosAlbum: videoURL) { (assetUrl: URL?, error: Error?) in

self.putMediaToAlbum(assetsLibrary, url: assetUrl, album: album, completion: { (error) in
if error != nil {
completion(nil, error)
} else {
completion(assetUrl, nil)
completion(nil, "Could not write video to album: \(String(describing: error))")
return
}

guard let assetUrl = assetUrl else {
completion(nil, "Writing video to album resulted empty asset")
return
}
})
}

self.putMediaToAlbum(assetsLibrary, url: assetUrl, album: album, completion: { (error) in
if error != nil {
completion(nil, error)
} else {
completion(assetUrl, nil)
}
})
}

}
}

if let photoAlbum = PhotoLibraryService.getPhotoAlbum(album) {
Expand Down