title: How to list all the files in a custom Directory
body: <p>I'm trying to list all the files in a directory I have made, when I create the directory I warp a file for each contact into the dir. I then want to be able to list all those files inside/within the directory. I have tried everything including </p>
  
  <pre><code>String a = listFiles().tostring();
  </code></pre>
  
  <p>Yet, nothing happens. To sum it up, I want to list all the files within a custom dir in the SD card.</p>
  
  <p><strong>Here's my updated code</strong></p>
  
  <pre><code>String path = Environment.getExternalStorageDirectory().getAbsolutePath();
  FileInputStream iStream =  new FileInputStream(path);
  String read = path.getbytes().tostring();
  </code></pre>