splash-screen-styles-2.xml

// styles.xml

<resources>
    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
        <!-- Customize your theme here. -->
    <item name="colorPrimaryDark">@color/primaryDark</item>
    <item name="android:windowBackground">@color/background</item>
    </style>

    <style name="SplashTheme" parent="AppTheme">
        <item name="android:windowBackground">@drawable/splash_screen</item>
    </style>

</resources>