我想使用不包含文件类型的 URL 下载任何扩展名的文件。对文件类型进行硬编码在这里不起作用。
Uri downloadUrl = Uri.parse(link);
DownloadManager.Request request = new DownloadManager.Request(downloadUrl);
request.setAllowedNetworkTypes(DownloadManager.Request.NETWORK_WIFI | DownloadManager.Request.NETWORK_MOBILE);
request.setAllowedOverRoaming(true);
request.setTitle(title);
request.setDescription(description);
request.setVisibleInDownloadsUi(true);
request.setMimeType("application/pdf");
request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS, subDirectory);
request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
DownloadManager downloadManager = (DownloadManager) context.getSystemService(DOWNLOAD_SERVICE);
if (downloadManager != null) {
downloadManager.enqueue(request);
}
最佳答案
试试这个:
File file=new File(getExternalFilesDir(null),"Dummy");
/*
Create a DownloadManager.Request with all the information necessary to start the download
*/
DownloadManager.Request request =
new DownloadManager.Request(Uri.parse("YOUR URL"))
.setTitle("Dummy File")// Title of the Download Notification
.setDescription("Downloading")// Description of the Download Notification
.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE)// Visibility of the download Notification
.setDestinationUri(Uri.fromFile(file))// Uri of the destination file
.setRequiresCharging(false)// Set if charging is required to begin the download
.setAllowedOverMetered(true)// Set if download is allowed on Mobile network
.setAllowedOverRoaming(true);// Set if download is allowed on roaming network
然后:
DownloadManager downloadManager=
(DownloadManager) getSystemService(DOWNLOAD_SERVICE);
// enqueue puts the download request in the queue.
downloadID = downloadManager.enqueue(request);
完整示例请参阅link .
关于java - 下载管理器 - 设置文件扩展名而无需硬编码，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/56423406/