Android Download file with DownloadManager

Down.java

    @SuppressLint("Range")
    private boolean downloadUpdate() {
        boolean flag = false;
        try {
            final File apk_file_path = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS), fileName);
            if (apk_file_path.exists()) apk_file_path.delete();

            Log.v(TAG, "Downloading request on url :" + BaseUrl);
            DownloadManager.Request request = new DownloadManager.Request(Uri.parse(BaseUrl));
            request.setDescription("Update the App     تحديث التطبيق");
            request.setTitle("Update ");
            //set destination
            final Uri uri = Uri.parse("file://" + apk_file_path);
            request.setDestinationUri(uri);

            // get download service and enqueue file
            final DownloadManager manager = (DownloadManager) getSystemService(Context.DOWNLOAD_SERVICE);

            final long downloadId = manager.enqueue(request);

            //binding.progressBar.setVisibility(View.VISIBLE);

            // new Thread(() -> {
            boolean downloading = true;

            while (downloading) {
                DownloadManager.Query q = new DownloadManager.Query();
                q.setFilterById(downloadId);
                Cursor cursor = manager.query(q);
                if (cursor != null && cursor.moveToFirst()) {
                    cursor.moveToFirst();
                    @SuppressLint("Range") final int bytes_downloaded = cursor.getInt(cursor.getColumnIndex(DownloadManager.COLUMN_BYTES_DOWNLOADED_SO_FAR));
                    int status = cursor.getInt(cursor.getColumnIndex(DownloadManager.COLUMN_STATUS));

                    if (status == DownloadManager.STATUS_SUCCESSFUL) {
                        downloading = false;
                        flag = true;
                        Log.v(TAG, "STATUS_SUCCESSFUL");
                    }

                    if (status == DownloadManager.STATUS_FAILED) {
                        Log.i("FLAG", "Fail");
                        downloading = false;
                        flag = false;

                        break;
                    }

                    @SuppressLint("Range") int bytes_total = cursor.getInt(cursor.getColumnIndex(DownloadManager.COLUMN_BYTES_DOWNLOADED_SO_FAR));
                    Log.v(TAG, "COLUMN_TOTAL_SIZE_BYTES " + bytes_total);
                    if (bytes_total != 0) {
                        final int dl_progress = (int) ((bytes_downloaded * 100l) / bytes_total);
                        runOnUiThread(new Runnable() {
                            @Override
                            public void run() {
                                binding.textView.setText((int) dl_progress + "/" + "100");
                            }
                        });
                    }
                    cursor.close();
                } else {
                    cursor.close();
                    Log.v(TAG, "Downloading Failled");
                    downloading = false;
                    flag = false;
                }
            } // end of while llop


            //  }).start();

            return flag;


        } catch (Exception e) {
            e.printStackTrace();
            flag = false;
            return flag;

        }

    }