title: How to add Action Bar from support library into PreferenceActivity?
body: <p>Action Bar compatibility has been added into support library, revision 18. It now has <a href="https://developer.android.com/reference/android/support/v7/app/ActionBarActivity.html" rel="noreferrer"><code>ActionBarActivity</code></a> class for creating activities with Action Bar on older versions of Android.</p>
  
  <p>Is there any way to add Action Bar from support library into <code>PreferenceActivity</code>?</p>
  
  <p><em>Previously I used <a href="http://actionbarsherlock.com/" rel="noreferrer">ActionBarSherlock</a> and it has <code>SherlockPreferenceActivity</code>.</em></p>