Change background color in launch screen when using DayNight theme

Question

I am using DayNight theme with launch screen.

Launch screen is a layer-list with white background.

So when its day, white launch screen shows followed by white activity. But at night, white launch screen shows follwed by dark activity.

How can i change the background color in the launch screen according to the theme.

Cannot use custom color attrs because there is only a DayNight theme.

themes.xml

<resources> <!-- Base application theme. --> <style name="AppTheme" parent="Theme.AppCompat.DayNight.NoActionBar">     <item name="colorPrimary">@color/colorPrimary</item>     <item name="colorPrimaryDark">@color/colorPrimaryDark</item>     <item name="colorAccent">@color/colorAccent</item>     <item name="android:colorControlNormal">@color/colorAccent</item> </style>  <style name="LaunchTheme" parent="AppTheme">     <item name="android:windowBackground">@drawable/launch_screen</item> </style> 

launch_screen.xml

<layer-list xmlns:android="http://schemas.android.com/apk/res/android"> <item>     <color android:color="@color/material_white"/> </item> <item>     <bitmap        android:gravity="center"        android:src="@drawable/launch_logo"        android:tileMode="disabled"/> </item> 

Answer 1

In addition to your default launch theme provide its night variant in appropriate resource directory.

res/values-night/themes.xml

<style name="LaunchTheme" parent="AppTheme">     <item name="android:windowBackground">@drawable/launch_screen_night</item> </style> 

res/drawable/launch_screen_night.xml

<layer-list xmlns:android="http://schemas.android.com/apk/res/android"> <item>     <color android:color="@color/material_black"/> </item> <item>     <bitmap        android:gravity="center"        android:src="@drawable/launch_logo"        android:tileMode="disabled"/> </item>