How to add Action Bar from support library into PreferenceActivity?

Question

Action Bar compatibility has been added into support library, revision 18. It now has ActionBarActivity class for creating activities with Action Bar on older versions of An

Answer 1

Now the official answer for this problem has been released. It is the v7/v14 Preference Support library.

See How to use the v7/v14 Preference Support library? for the discussion how to use it.