Swift 如何访问用户选定目录下的(只读)文件

SDK:MacOS 14.0

Xcode:15.0

我搜索了很多答案，但都不适用于我的申请.我无法访问文件夹下的文件内容.

首先，我在App SandBox中配置了权限:

然后我在SwiftUI中使用fileImporter来允许用户 Select 文件夹:

Button("open file")
.fileImporter(
    isPresented: $indexModel.openFileImporter,
    allowedContentTypes: [.movie, .avi, .mpeg4Movie, .directory],
    allowsMultipleSelection: true
) { results in
    do {
        let selection = try results.get()
        try self.openSelectedPath(selection)
    } catch let err {
        indexModel.errorMsg = err.localizedDescription
        indexModel.showError = true
    }
}

在openSelectedPath中，我通过FileManager访问文件夹下的内容:

if selection.hasDirectoryPath {
    let files = try FileManager.default.contentsOfDirectory(
        at: selection,
        includingPropertiesForKeys: nil,
        options: [.skipsHiddenFiles]
    )
    files.enumerated().filter { _, file in
        // try grant access here but all fails
        guard file.startAccessingSecurityScopedResource() else {
            print("\(file.lastPathComponent) cannot access")
            return false
        }
        let isMKV = file.pathExtension.compare("mkv", options: .caseInsensitive, range: nil, locale: nil) == .orderedSame
        return file.isFileURL && (isMKV || file.contains(.movie) || file.contains(.avi) || file.contains(.mpeg4Movie))
    }
    return
}

因此，该文件夹中的所有文件都无法访问.(file.startAccessingSecurityScopedResource返回假)