PHAsset无法获取

Question

我试图从iOS应用程序中的照片库中获取照片。我正在使用Photos框架。但是，我在尝试这样做的时候遇到了一个错误，即使我只是在获得授权时才这样做：

核心“从守护进程返回的错误: Domain=com.apple.accounts Code=7 "(null)"”

获取资产的代码如下所示：

    func requestAuthorization() {
        PHPhotoLibrary.requestAuthorization { [weak self] (status) in
            guard let self = self else { return }
            switch status {
            case .authorized:
                self.getAllPhotos()
            case .denied:
                break
            case .notDetermined:
                break
            case .restricted:
                break
            @unknown default:
                break
            }
        }
    }

    private func getAllPhotos() {
        let assets: PHFetchResult = PHAsset.fetchAssets(with: .image, options: nil)
        // rest of the codebase
    }

Answer 1

你好，下面是工作代码的示例：

      public enum FetchResults {
        case success(response: [PHAsset])
        case error(error: Error)
    }

    public static func fetch(_ completion: @escaping (FetchResults) -> Void) {
        guard PHPhotoLibrary.authorizationStatus() == .authorized else {
            let error: NSError = NSError(domain: "PhotoLibrary Error", code: 1, userInfo: [NSLocalizedDescriptionKey: "No PhotoLibrary Access"])
            completion(FetchResults.error(error: error))
            return
        }

        DispatchQueue.global(qos: .userInitiated).async {
            let fetchResult = PHAsset.fetchAssets(with: .image, options: PHFetchOptions())

            if fetchResult.count > 0 {
                var assets = [PHAsset]()
                fetchResult.enumerateObjects { object, _, _ in
                    assets.insert(object, at: 0)
                }

                DispatchQueue.main.async {
                    completion(FetchResults.success(response: assets))
                }
            }
        }