Hide Action Bar without Alloy

Hi,

I'm using Titanium sdk 3.3 and Android sdk tools v.23.

I have an old project that is not made using Alloy.

With this new configuration, when launching the app for android, Titanium add an Action Bar.

Can you please have hints about how can I hide it?

I've found this link http://www.appcelerator.com/blog/2014/08/hiding-the- android-actionbar/

but none of the methods works for me (and most are for Alloy, so not my case).

Thanks

L.