id/support/v4/content/CursorLoader.html">CursorLoader</a></code> invokes callbacks defined
    in this interface to communicate with the class; this lesson and the next one
    describe each callback in detail.
</p>
<p>
    For example, this is how you should define a <code><a href="../../reference/android/support/v4/app/FragmentActivity.html">FragmentActivity</a></code>
    that uses the support library version of <code><a href="../../reference/android/support/v4/content/CursorLoader.html">CursorLoader</a>