swift 將圖片儲存到自訂相簿中

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import UIKitimport Photos@available(iOS 8.0, *)class CustomAblum: NSObject {    static let sharedInstance = CustomAblum()        var assetCollection: PHAssetCollection!    var albumFound : Bool = false    var photosAsset: PHFetchResult!    var collection: PHAssetCollection!    var assetCollectionPlaceholder: PHObjectPlaceholder!    static let albumName = "掃描圖片"    override init() {        super.init();        self.createAlbum()    }    private func createAlbum() {        let fetchOptions = PHFetchOptions()        fetchOptions.predicate = NSPredicate(format: "title = %@",CustomAblum.albumName);        let collection : PHFetchResult = PHAssetCollection.fetchAssetCollectionsWithType(.Album, subtype: .Any, options: fetchOptions)                if let _: AnyObject = collection.firstObject {            self.albumFound = true            assetCollection = collection.firstObject as! PHAssetCollection        } else {            PHPhotoLibrary.sharedPhotoLibrary().performChanges({                let createAlbumRequest : PHAssetCollectionChangeRequest = PHAssetCollectionChangeRequest.creationRequestForAssetCollectionWithTitle(CustomAblum.albumName);                self.assetCollectionPlaceholder = createAlbumRequest.placeholderForCreatedAssetCollection                }, completionHandler: { success, error in                    self.albumFound = (success ? true: false)                                        if (success) {                        let collectionFetchResult = PHAssetCollection.fetchAssetCollectionsWithLocalIdentifiers([self.assetCollectionPlaceholder.localIdentifier], options: nil)                        print(collectionFetchResult)                        self.assetCollection = collectionFetchResult.firstObject as! PHAssetCollection                    }            })        }    }    func saveImage(image: UIImage) {        if self.assetCollection != nil {            PHPhotoLibrary.sharedPhotoLibrary().performChanges({                let assetChangeRequest = PHAssetChangeRequest.creationRequestForAssetFromImage(image)                let assetPlaceholder = assetChangeRequest.placeholderForCreatedAsset                let albumChangeRequest = PHAssetCollectionChangeRequest(forAssetCollection: self.assetCollection)                albumChangeRequest?.addAssets([assetPlaceholder!])                }, completionHandler: nil)        }    }    }

使用時直接掉saveImage方法。

swift 將圖片儲存到自訂相簿中