title: Listing all extras of an Intent
body: <p>For debugging reasons I want to list all extras (and their values) of an Intent. Now, getting the keys isn't a problem</p>
  
  <pre><code>Set&lt;String&gt; keys = intent.getExtras().keySet();
  </code></pre>
  
  <p>but getting the values of the keys is one for me, because some values are strings, some are boolean... How could I get the values in a loop (looping through the keys) and write the values to a logfile? Thanks for any hint!</p>