Updating launcher settings so that they become split-screen

Following this guide:
https://developer.android.com/guide/topics/large-screens/activity-embedding#extract_an_activity_from_a_split_to_full_window

Bug: 204463748
Test: Open the settings app and open multiple settings, for now
only the options inside of the launcher3 package work
Flag: ACONFIG com.android.launcher3.Flags.enableTwoPaneLauncherSettings DEVELOPMENT

Change-Id: Ie6a9eb3760171da92d94cf06376127b02afff8df
diff --git a/res/values/config.xml b/res/values/config.xml
index 2a8ec28..5bdd7ebb 100644
--- a/res/values/config.xml
+++ b/res/values/config.xml
@@ -252,6 +252,9 @@
     <!--  Used for custom widgets  -->
     <array name="custom_widget_providers"/>
 
+    <!-- Embed parameters -->
+    <dimen name="activity_split_ratio"  format="float">0.5</dimen>
+    <integer name="min_width_split">720</integer>
 
     <!-- Skip "Install to private" long-press shortcut packages name -->
     <string-array name="skip_private_profile_shortcut_packages" translatable="false">
diff --git a/res/xml/split_configuration.xml b/res/xml/split_configuration.xml
new file mode 100644
index 0000000..531fef8
--- /dev/null
+++ b/res/xml/split_configuration.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources
+    xmlns:window="http://schemas.android.com/apk/res-auto">
+    <!-- Automatically split the following activity pairs. -->
+    <SplitPairRule
+        window:splitRatio="@dimen/activity_split_ratio"
+        window:splitLayoutDirection="locale"
+        window:splitMinWidthDp="@integer/min_width_split"
+        window:splitMaxAspectRatioInPortrait="alwaysAllow"
+        window:finishPrimaryWithSecondary="never"
+        window:finishSecondaryWithPrimary="always"
+        window:clearTop="false">
+        <SplitPairFilter
+            window:primaryActivityName="com.android.launcher3.settings.SettingsActivity"
+            window:secondaryActivityName="com.android.launcher3.settings.SettingsActivity"/>
+
+    </SplitPairRule>
+</resources>
\ No newline at end of file