Swift - 如何让所有照片的相册都包含 iCloud Library？

Posted 2023-03-07

【中文标题】Swift - 如何让所有照片的相册都包含 iCloud Library？

【英文标题】：Swift - How get photo albums with all photos include iCloud Library?

【发布时间】：2017-03-24 09:47:13

【问题描述】：

我需要从设备中获取所有相册。我使用此代码获取专辑：

func fetchAlbums() 
       // Get all user albums 
        let userAlbumsOptions = PHFetchOptions()
        userAlbumsOptions.predicate = NSPredicate(format: "estimatedAssetCount > 0")


        let userAlbums = PHAssetCollection.fetchAssetCollections(with: PHAssetCollectionType.album, subtype: PHAssetCollectionSubtype.any, options: userAlbumsOptions)

        userAlbums.enumerateObjects( 
            if let collection = $0.0 as? PHAssetCollection 
                print("album title: \(collection.localizedTitle)")

                let onlyImagesOptions = PHFetchOptions()
                onlyImagesOptions.predicate = NSPredicate(format: "mediaType = %i", PHAssetMediaType.image.rawValue)

                if let result = PHAsset.fetchKeyAssets(in: collection, options: onlyImagesOptions) 
                    print("Images count: \(result.count)")
                    if result.count > 0  
                        //Add album titie
                        self.albumsTitles.append(collection.localizedTitle!)
                        //Add album
                        self.albumsArray.append(result as! PHFetchResult<AnyObject>)
                  
                
            
         )


    

但我无法获取所有照片。所有没有来自 iCloud 库的照片的相册，只有本地照片。 我使用收藏视图预览照片。示例我从选定相册中获取照片的代码：

    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell 

        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: String(describing: AlbumPhotoCollectionViewCell.self), 
                                  for: indexPath as IndexPath) as! AlbumPhotoCollectionViewCell

                    //Array with albums
                    let asset = self.albumsArray[indexSelectedAlbum]

                    let album = asset[indexPath.item]

                    let options = PHImageRequestOptions()

                    options.isNetworkAccessAllowed = true


               PHImageManager.default().requestImage(for: album as! PHAsset , 
                               targetSize: self.assetThumbnailSize,
                               contentMode: .aspectFill,
                               options: options, 
                               resultHandler: (result, info)in
                                     if result != nil 

                                       cell.albumPhoto.image = result
                              
                    )


                    return cell
        

【参考方案1】：

我改变了 fetch 和所有工作。 旧代码：

if let result = PHAsset.fetchKeyAssets(in: collection, options: onlyImagesOptions)
 //Code

新代码

let result = PHAsset.fetchAssets(in: collection, options: onlyImagesOptions)