title: ListPreference dependency
body: <p>I have a <code>ListPreference</code> which look something like this:</p>
  
  <pre><code>&lt;ListPreference
  android:title="Choose item"
  android:summary="..."
  android:key="itemList"
  android:defaultValue="item1"
  android:entries="@array/items"
  android:entryValues="@array/itemValues" /&gt;
  </code></pre>
  
  <p>Then, I have another preference which should only be enabled if "item3" is selected in the <code>ListPreference</code>.</p>
  
  <p>Can I somehow accomplish this with <code>android:dependency</code>? Something like <code>android:dependency="itemList:item3"</code></p>
  
  <p>Thanks!</p>