title: Get original ArrayList from ArrayAdapter
body: <p>How can I retrieve the underlying ArrayList from an ArrayAdapter in Android?</p>
  
  <p>Is this possible or do I need to keep track of them seperately?</p>
  
  <pre><code>ArrayAdapter&lt;String&gt; adapter = new ArrayAdapter&lt;String&gt;(this, android.R.layout.simple_list_item_1, new ArrayList&lt;String&gt;());
  ArrayList&lt;String&gt; underlying = 
  </code></pre>