Android - Check if a certain applications if installed and get it's version
<blockquote>
  <p><strong>Possible Duplicate:</strong><br>
  <a href="http://stackoverflow.com/questions/2695746/how-to-get-a-list-of-installed-android-applications-and-pick-one-to-run">How to get a list of installed android applications and pick one to run</a>  </p>
</blockquote>



<p>I need to check if a certain applications (I know what it is by its package name "com.domain.appname"), and if it's not installed show a toast message, if it's installed, get its version, and show a toast message with its version.
Is it possible?
Thanks in advanced.</p>
