title: Read data from txt file present in sdcard of an Android device
body: <p>I want to read data from file:</p>
  
  <pre><code>    FileInputStream in = openFileInput(file);
      InputStreamReader inputStreamReader = new InputStreamReader(in);
      BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
  </code></pre>
  
  <p>But I don't know "file". I want that the user tell me where the file is. I want to make him search the file with a filemanager. what should I do?
  I hope I explained myself and sorry for the English. Thanks in advance.</p>