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Postsdbo
PO
 

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    <p>Try this:</p> <pre><code>private String getExternalSDPath() { File file = new File("/system/etc/vold.fstab"); FileReader fr = null; BufferedReader br = null; try { fr = new FileReader(file); } catch (FileNotFoundException e) { // handle } String path = null; try { if (fr != null) { br = new BufferedReader(fr); String s = br.readLine(); while (s != null) { if (s.startsWith("dev_mount")) { String[] tokens = s.split("\\s"); path = tokens[2]; // mount_point if (Environment.getExternalStorageDirectory() .getAbsolutePath().equals(path)) { break; } } s = br.readLine(); } } } catch (IOException e) { // handle } finally { try { if (fr != null) { fr.close(); } if (br != null) { br.close(); } } catch (IOException e) { // handle } } return path; } </code></pre> <p>The code is made specifically for Samsung Devices with both internal, an internal that acts as external, and SD.</p> <p>I needed to access the SD and came up with the above code, so you can try it and possibly modify it to work on all devices.</p> <p><strong>Edit:</strong> My download AsyncTask</p> <pre><code> private class DownloadFile extends AsyncTask&lt;Void, Void, String&gt; { @Override protected String doInBackground(Void... params) { String filename = "somefile.pdf"; HttpURLConnection c; try { URL url = new URL("http://someurl.com/" + filename); c = (HttpURLConnection) url.openConnection(); c.setRequestMethod("GET"); c.setDoOutput(true); c.connect(); } catch (IOException e1) { return e1.getMessage(); } File myFilesDir = new File(Environment .getExternalStorageDirectory().getAbsolutePath() + "/Download"); File file= new File(myFilesDir, filename); if (file.exists()) { file.delete(); } if ((myFilesDir.mkdirs() || myFilesDir.isDirectory())) { try { InputStream is = c.getInputStream(); FileOutputStream fos = new FileOutputStream(myFilesDir + "/" + filename); byte[] buffer = new byte[1024]; int len1 = 0; while ((len1 = is.read(buffer)) != -1) { fos.write(buffer, 0, len1); } fos.close(); is.close(); } catch (Exception e) { return e.getMessage(); } } else { return "Unable to create folder"; } } @Override protected void onPostExecute(String result) { Toast.makeText(getApplicationContext(), result, Toast.LENGTH_LONG) .show(); super.onPostExecute(result); } } </code></pre>
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    1. PODownload PDF file android
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    1. COWait,.. guess I missed the point that it in fact did start a file, though 0 bytes.
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    2. COit`s Create the File But urlConnection.getContentLength() retutn 0
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    3. COThink there is something wrong with write permissions or something on your device. Just inspected some of the code I use for downloading at it essentially is exactly the same. I will post it as an edit.
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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