title: Getting file from device on Android, keeps stating file not found when trying to use it
body: <p>I have an Android app where I am allowing the user to pick a file from the file system, I then get the path and set the path to an EditText and then use this path to open the file contents. </p>
  
  <p>Below is how I am loading the file picker</p>
  
  <pre><code>Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
  intent.setType("*/*");
  intent.addCategory(Intent.CATEGORY_OPENABLE);
  intent.setAction(Intent.ACTION_GET_CONTENT);
  startActivityForResult(Intent.createChooser(intent, "Select your private key"), PRIVATE_KEY_PICKER);
  </code></pre>
  
  <p>Below is my <code>onActivityResult</code></p>
  
  <pre><code>        protected void onActivityResult(int requestCode, int resultCode, Intent data)
              {
                  switch (requestCode)
                  {
                      case PRIVATE_KEY_PICKER:
                          if (resultCode == Activity.RESULT_OK)
                          {
                              Uri uri = data.getData();
  
                              String path = uri.getPath();
  
                              txtPublicKeyPath.setText(path);
                          }
                          break;
                  }
              }
  
      The path that I get back and set to the EditText is:
  
      `/document/primary:Download/my_file.txt` (my_file.txt being the file that was selected in the file picker).
  
      To use the file I do the following:
  
      File file = new File(txtPublicKeyPath.getText().toString());
                  FileInputStream fis = new FileInputStream(file);
  
                  BufferedReader reader = new BufferedReader(new InputStreamReader(fis));
                  StringBuilder sb = new StringBuilder();
                  String line = null;
                  while ((line = reader.readLine()) != null)
                  {
                      sb.append(line + "\n");
                  }
  
                  Intent intent = new Intent();
                  intent.putExtra(PUBLIC_KEY_FILE, sb.toString());
  
                  //If the certiticate passphrease has been provided, add this to the bundle
                  if (txtPassphrase.getText().length() &gt; 0)
                  {
                      intent.putExtra(PUBLIC_KEY_PASSPHRASE, txtPassphrase.getText().toString());
                  }
  
                  setResult(Activity.RESULT_OK, intent);
                  finish();
  }
  </code></pre>
  
  <p>The above code causes the following exception:</p>
  
  <pre><code>04-10 21:46:58.680 28866-28866/com.BoardiesITSolutions.MysqlManager E/SSHKeyManager: java.io.FileNotFoundException: /document/primary:Download/id_rsa (No such file or directory)
  </code></pre>