acheKey</h4>
<pre>void&nbsp;updateDiskCacheKey(<a href="http://d.android.com/reference/java/security/MessageDigest.html?is-external=true" title="class or interface in java.security">MessageDigest</a>&nbsp;messageDigest)</pre>
<div class="block">Adds all uniquely identifying information to the given digest.

 <p> Note - Using <a href="http://d.android.com/reference/java/security/MessageDigest.html?is-external=true#reset--" title="class or interface in java.security"><code>MessageDigest.reset()</code></a> ins