For API level 11 or greater
1. Add an Action Bar to your project.
2. Open the activity file you'd like to hide the Action Bar. We will use the MainActivity.java file for our example. Add the below import to the imports section.
import android.app.ActionBar; //Added in API level 11
3. While in the MainActivity.java file, add the below code to the onCreate method.
ActionBar bar = getActionBar();
bar.hide();
4. Compile and run!
Resources:
http://www.informit.com/articles/article.aspx?p=1743642&seqNum=5
Other Resources