Ios 如何将文件夹从项目复制到文档目录

这是我的文件夹结构

我想将此标签文件夹复制到文档目录为此，我使用了以下代码

    let fileManager = FileManager.default

    let documentsUrl = fileManager.urls(for: .documentDirectory,
                                        in: .userDomainMask)

    guard documentsUrl.count != 0 else {
        return // Could not find documents URL
    }

    let finalDatabaseURL = documentsUrl.first!.appendingPathComponent("Stickers")

    if !( (try? finalDatabaseURL.checkResourceIsReachable()) ?? false) {
        print("DB does not exist in documents folder")

        let documentsURL = Bundle.main.resourceURL?.appendingPathComponent("Stickers")

        do {
            try fileManager.copyItem(atPath: (documentsURL?.path)!, toPath: finalDatabaseURL.path)
        } catch let error as NSError {
            print("Couldn't copy file to final location! Error:\(error.description)")
        }

    } else {
        print("Database file found at path: \(finalDatabaseURL.path)")
    }

但这行不通。我得到一个错误，因为

注意：如果无法复制文件夹，则我希望将资产.xcsets复制到文档目录。我怎样才能做到这一点呢？

请在下面输入代码。。 我用两个函数更新代码，将所有文件从文件夹复制到文档目录

希望它能起作用

func copyFolders() {
    let fileManager = FileManager.default

    let documentsUrl = fileManager.urls(for: .documentDirectory,
                                        in: .userDomainMask)

    guard documentsUrl.count != 0 else {
        return // Could not find documents URL
    }

    let finalDatabaseURL = documentsUrl.first!.appendingPathComponent("Stickers")

    if !( (try? finalDatabaseURL.checkResourceIsReachable()) ?? false) {
        print("DB does not exist in documents folder")

        let documentsURL = Bundle.main.resourceURL?.appendingPathComponent("Stickers")

        do {
            if !FileManager.default.fileExists(atPath:(finalDatabaseURL?.path)!)
            {
                try FileManager.default.createDirectory(atPath: (finalDatabaseURL.path), withIntermediateDirectories: false, attributes: nil)
            }
            copyFiles(pathFromBundle: (documentsURL?.path)!, pathDestDocs: finalDatabaseURL.path)
        } catch let error as NSError {
            print("Couldn't copy file to final location! Error:\(error.description)")
        }

    } else {
        print("Database file found at path: \(finalDatabaseURL.path)")
    }

}

func copyFiles(pathFromBundle : String, pathDestDocs: String) {
    let fileManagerIs = FileManager.default
    do {
        let filelist = try fileManagerIs.contentsOfDirectory(atPath: pathFromBundle)
        try? fileManagerIs.copyItem(atPath: pathFromBundle, toPath: pathDestDocs)

        for filename in filelist {
            try? fileManagerIs.copyItem(atPath: "\(pathFromBundle)/\(filename)", toPath: "\(pathDestDocs)/\(filename)")
        }
    } catch {
        print("\nError\n")
    }
}

---

嘿，我的文件夹被复制到文档文件夹中，但我也需要文件夹中的数据。请帮助此代码在文档目录中创建文件夹，但它没有复制此文件夹中的标签。您应该从该文件夹中选择一个文件。不要复制文件夹，在目录端必须给出一个文件名，我会更新一个代码…检查并使用它。只需调用-->copyFolders（），很抱歉在-->if中检查了捆绑路径！FileManager.default.fileExists（atPath:（finalDatabaseURL？.path）！）。我更新了…现在试试。希望它能起作用