private long CreateSystemDownloadTask(string url, Java.IO.File saveFile, string Referer, string title = "")
{
try
{
DownloadManager downloadManager = (DownloadManager)Forms.Context.GetSystemService(Context.DownloadService);
DownloadManager.Request request = new DownloadManager.Request(Android.Net.Uri.Parse(url));
if (title.Length != 0)
{
request.SetTitle(title);
}
//从360云盘返回的地址不能加Referer下载
if (!url.Contains("360.cn"))
{
request.AddRequestHeader("Referer", Referer);
}
request.AddRequestHeader("User-Agent", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36");
request.SetDestinationUri(Android.Net.Uri.FromFile(saveFile));
request.SetNotificationVisibility(DownloadVisibility.VisibleNotifyCompleted);
long downloadId = downloadManager.Enqueue(request);
return(downloadId);
}
catch (Exception ex)
{
return(0);
}
}
/// <summary>
/// Starts download of given URL
/// </summary>
/// <param name="url">URL of file to download</param>
/// <param name="filename">filename of file to download</param>
private void StartDownload(string url, string filename)
{
var uri = global::Android.Net.Uri.Parse(url);
var request = new DownloadManager.Request(uri);
request.SetTitle(filename);
request.SetDescription("Downloading file...");
var cookie = CookieManager.Instance.GetCookie(url);
request.AddRequestHeader("Cookie", cookie);
if (global::Android.OS.Build.VERSION.SdkInt < global::Android.OS.BuildVersionCodes.Q)
{
#pragma warning disable CS0618 // Type or member is obsolete
request.AllowScanningByMediaScanner();
#pragma warning restore CS0618 // Type or member is obsolete
}
else
{
request.SetDestinationInExternalPublicDir(
global::Android.OS.Environment.DirectoryDownloads,
filename);
}
request.SetNotificationVisibility(DownloadVisibility.VisibleNotifyCompleted);
var downloadManager = (DownloadManager)this.Context.GetSystemService(Context.DownloadService);
downloadManager.Enqueue(request);
Toast.MakeText(this.Context, "Image download started...", ToastLength.Short).Show();
}
