Android- Saving File (Input & Output Stream) throws Exception (open failed: EINVAL (Invalid argument)) in Pre-lollipop devices

Question

Android- Saving File (Input & Output Stream) throws Exception (open failed: EINVAL (Invalid argument)) in Pre-lollipop devices

I am downloading a file from URL (www.xyz.in/file/9) and saving in SD CARD.

Folder created code:

try {
    //String folder_name = "NewFolder";
    File f = new File(Environment.getExternalStorageDirectory(), "Venky");
    if (!f.exists()) {
        f.mkdirs();
    }
} catch (Exception e) {
    Log.v("MTV", " createFileDirectory exception" + e);
}

Below I posted a (Download and Saving file) code, In android lollipop, It works fine to download and saved the file in SD Card.

it doesn't works on Pre-lolipop devices. It throws Exception.

protected String doInBackground(String... f_url) {
            int count;
            try {
                URL url = new URL(f_url[0]);
                URLConnection conection = url.openConnection();
                conection.connect();
                // this will be useful so that you can show a tipical 0-100% progress bar
                int lenghtOfFile = conection.getContentLength();

                    String depo = conection.getHeaderField("Content-Disposition");
                    String depoSplit[] = depo.split("filename=");
                    filename = depoSplit[1].replace("filename=", "").replace("\"", "").trim();

                filename=filename.trim();
                String Filetype = conection.getContentType();
                Log.v("fileName", " " + filename + " FileLength " + lenghtOfFile + " Filetype " + Filetype);

                InputStream input = new BufferedInputStream(url.openStream(), 8192);

                OutputStream output = new FileOutputStream(Environment.getExternalStorageDirectory().toString() + "/Venky/" + filename);
                Log.v("", "" + Environment.getExternalStorageDirectory().toString() + "/" + R.string.app_name + "/" + filename);
                byte data[] = new byte[1024];
                long total = 0;
                while ((count = input.read(data)) != -1) {
                    total += count;
                    // publishing the progress....
                    // After this onProgressUpdate will be called
                    publishProgress("" + (int) ((total * 100) / lenghtOfFile));
                    // writing data to file
                    output.write(data, 0, count);
                }
                // flushing output
                output.flush();
                // closing streams
                output.close();
                input.close();
                DownloadSucess = true;
            } catch (Exception e) {
                DownloadSucess = false;
                Log.e("Error: ","Download Exception "+ e);
            }

            return null;
        }

Logcat (Exception):

>E/Error:: Download Exception java.io.FileNotFoundException: /storage/sdcard0/Venky/FileName : smile-please.png: open failed: EINVAL (Invalid argument)

Note: In manifest, Both WRITE_EXTERNAL_STORAGE & READ_EXTERNAL_STORAGE permissions are used.

Answer 1

The value of your variable filename is FileName : smile-please.png and not -what you think- smile-please.png.

Just log the contents of filename before use.