Cannot set dark app theme Android Studio

Question

I was trying to set dark background in theme like this -

    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
    <!-- Customize your theme here. -->
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/colorAccent</item>
    <item name="android:colorBackground">@color/background_material_dark</item>
    <item name="android:textColorPrimary">@color/abc_primary_text_material_dark</item>
</style>

It is working on Android Lollipop, Marshmallow and Nougat, but on KitKat and older systems, the background is white. Could someone help me? (I want to keep ActionBar too)

Answer 1

What you're using is android:colorBackground , to change the Window Background you must also add android:windowBackground to the same value.