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我正在爲我的應用程序使用Android下載管理器,並且工作完美。但是我需要在存儲時下載文件名。我沒有得到文件名,並且出現錯誤。我也嘗試了以前的所有解決方案。請幫我解決這個問題。無法從Android下載管理器獲取下載文件的名稱
DownloadManager mgr = (DownloadManager) this.getSystemService(Context.DOWNLOAD_SERVICE);
boolean isDownloading = false;
DownloadManager.Query query = new DownloadManager.Query();
query.setFilterByStatus(
DownloadManager.STATUS_PAUSED|
DownloadManager.STATUS_PENDING|
DownloadManager.STATUS_RUNNING|
DownloadManager.STATUS_SUCCESSFUL
);
Cursor cur = mgr.query(query);
String filename="";
if (cur.moveToFirst()) {
String filePath = cur.getString(cur.getColumnIndex(DownloadManager.COLUMN_LOCAL_FILENAME));
filename = filePath.substring(filePath.lastIndexOf('/')+1, filePath.length());
}
Uri source = Uri.parse(myWebsites[j]);
DownloadManager.Request request = new DownloadManager.Request(source);
request.setNotificationVisibility(
DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED
);
request.setDestinationInExternalPublicDir("/MyDownloadManager/"+folderName, filename);
request.allowScanningByMediaScanner();
long id = mgr.enqueue(request);
cur.close();