问是否可以从照片库中保存对照片存储位置的引用，而不是将实际的UIImage本身保存为数据？

EN

import PhotosUI
import SwiftUI

struct PhotoPicker: UIViewControllerRepresentable {
    @Environment(\.dismiss) var dismiss
    @Binding var assetIdentifier: String?

    typealias UIViewControllerType = PHPickerViewController
    func makeUIViewController(context: Context) -> PHPickerViewController {
        var configuration = PHPickerConfiguration(photoLibrary: PHPhotoLibrary.shared())
        configuration.selectionLimit = 1
        configuration.filter = .images

        let picker = PHPickerViewController(configuration: configuration)
        picker.delegate = context.coordinator

        return picker
    }

    func updateUIViewController(_ uiViewController: PHPickerViewController, context: Context) {
        // Do nothing.
    }

    func makeCoordinator() -> Coordinator {
        Coordinator(self)
    }

    class Coordinator: NSObject, UINavigationControllerDelegate, PHPickerViewControllerDelegate {
        let parent: PhotoPicker

        init(_ parent: PhotoPicker) {
            self.parent = parent
        }

        func picker(_ picker: PHPickerViewController, didFinishPicking results: [PHPickerResult]) {
            parent.dismiss()

            // Only 1 image can be selected, so ignore any additional elements.
            guard let result = results.first else {
                return
            }

            parent.assetIdentifier = result.assetIdentifier
        }
    }
}

import Photos
import SwiftUI

struct LoadedImageView: View {
    @State var assetIdentifier: String
    @State private var image: Image? = nil

    var body: some View {
        VStack {
            if let image = image {
                image
                    .resizable()
                    .aspectRatio(contentMode: .fit)
            }
        }
        .onAppear(perform: loadImage)
    }

    func loadImage() {
        let fetchResults: PHFetchResult<PHAsset> =
            PHAsset.fetchAssets(withLocalIdentifiers: [assetIdentifier], options: nil)

        guard let asset: PHAsset = fetchResults.firstObject else {
            return
        }

        let manager = PHImageManager()
        manager.requestImage(for: asset, targetSize: PHImageManagerMaximumSize,
                                contentMode: .aspectFit, options: nil) { (uiImage, _) in
            if let uiImage = uiImage {
                self.image = Image(uiImage: uiImage)
            }
        }
    }
}