How can I save files downloaded from Download Manager in Android to app internal(filesDir) as now its not easy to access files in Android

Here is the code i am tring to do the same when i am downloading anything from webView in android.

 webview.setDownloadListener { url, userAgent, contentDisposition, mimetype, l ->
                val request = DownloadManager.Request(Uri.parse(url))
                request.setTitle(URLUtil.guessFileName(url, contentDisposition, mimetype))
                request.setDescription("Downloading file...")
                request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED)
                        var newuri=FileProvider.getUriForFile(context, "com.shyptsolution.classproject"+ ".provider", File(context.filesDir,"fileName"))
//                request.setDestinationUri(newuri)
                request.setDestinationInExternalPublicDir(
                   context.filesDir.absolutePath,
                    URLUtil.guessFileName(url, contentDisposition, mimetype)
                )
                val dm =context.applicationContext.getSystemService(DOWNLOAD_SERVICE) as DownloadManager
                dm!!.enqueue(request)
            }

But I am getting error in this that it is not a standard directory. How can I save the files in cache or filesdir??

I just want to see my files in the files folder shown in the pic below.

DownloadManager cannot download to internal storage, as it has no access to that location.

DownloadManager is very limited in modern versions of Android, due to scoped storage restrictions. I recommend that you use something else, such as OkHttp, to download the content within your app to a file that you control, including onto internal storage.