title: Reading images stored in internal storage from another app
body: <p>I have a simple question.</p>
  
  <p>It's possible to access to <code>DCIM</code> folder (internal storage) from an <code>app</code> and retrieve an <code>image</code>? </p>
  
  <p>I've found solutions that use something like <code>Enviroment.getExternalStoragePublicDirectory</code> but I don't understand why. </p>