title: Checking external app version name in android
body: <p>I would like to know how to read installed apk version.
  For example, from my app i would like to know what version of Skype is installed on my phone.</p>
  
  <p>To Read my app version i use:</p>
  
  <pre><code>PackageInfo pinfo = null;
  pinfo = getPackageManager().getPackageInfo(getPackageName(), 0);
  String versionName = pinfo.versionName;
  </code></pre>
  
  <p>Of course with try/catch surrounded.</p>