Don't forget about the difference between android:windowActionBar vs windowActionBar in your theme
What is the difference between this piece of code: <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar"> <item name="windowActionBar">false</item> </style> and this one: <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar"> <item name="android:windowActionBar">false</item> </style>