iPhone：下载 zip 并在运行时解压到主包子目录中

iPhone：下载 zip 并在运行时解压到主包子目录中

swift
func downloadZipFile(completion: @escaping (URL?, Error?) -> Void) {
    let url = URL(string: "https://example.com/file.zip")!
    let task = URLSession.shared.downloadTask(with: url) { (location, response, error) in
        if let error = error {
            completion(nil, error)
            return
        }
        if let location = location {
            completion(location, nil)
        }
    }
    task.resume()
}

swift
func unzipFile(at url: URL, destination: URL, completion: @escaping (Bool, Error?) -> Void) {
    guard let zipFile = OZZipFile(fileName: url.path, mode: .unzip) else {
        completion(false, nil)
        return
    }
    zipFile.open()
    zipFile.extract(to: destination.path, overwrite: true)
    zipFile.close()
    completion(true, nil)
}

swift
func moveFile(at sourceURL: URL, to destinationURL: URL, completion: @escaping (Bool, Error?) -> Void) {
    do {
        try FileManager.default.moveItem(at: sourceURL, to: destinationURL)
        completion(true, nil)
    } catch {
        completion(false, error)
    }
}
func handleDownloadCompletion(url: URL) {
    let unzipDestinationURL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!.appendingPathComponent("unzipDestination")
    unzipFile(at: url, destination: unzipDestinationURL) { (success, error) in
        if success {
            let fileManager = FileManager.default
            let documentsURL = fileManager.urls(for: .documentDirectory, in: .userDomainMask).first!
            let destinationURL = documentsURL.appendingPathComponent("unzippedFile")
            moveFile(at: unzipDestinationURL, to: destinationURL) { (success, error) in
                if success {
                    // 解压并移动文件成功，可以在应用程序中使用了
                } else {
                    // 解压并移动文件失败
                }
            }
        } else {
            // 解压文件失败
        }
    }
}