How do I remove the title bar in android studio?

Question

In my app there is this title bar at the top where the overflow menu would be, but I don\'t need settings and only have one screen. When I change the theme like described in

Answer 1

In AndroidManifest.xml of your application you'll find the android:theme for example set to @style/AppTheme

Now go to styles.xml, find the style tag, make sure that name is set to AppTheme the same as in manifest and set parent to android:Theme.Holo.Light.NoActionBar (also do this in styles(v21) if you have it in your project)