如何在Xamarin iOS中下载背景中的多个视频

Question

我是Xamarin iOS的新用户，我需要同时下载多个视频。我该怎么做到这一点？是否有任何类可以帮助我下载类似于Android中的DownloadManager。

Answer 1

您可以尝试这种方法

public void getData(List<String> urls) {
    // define the HttpClient
    var handler = new HttpClientHandler { AllowAutoRedirect=false };
    var client = new HttpClient(handler);

    // define file path
    var path=Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);

    // start download
    System.Threading.Tasks.Parallel.ForEach(urls, async (url) => {
        var uri = new Uri(url);
        var fileName = System.IO.Path.GetFileName(uri.LocalPath);

        // download the file
        var data = await client.GetByteArrayAsync(uri);

        // save file on disk
        System.IO.File.WriteAllBytes(System.IO.Path.Combine(path, fileName), data);
    });
}