diff --git a/demo/Semi.Avalonia.Demo.Android/Resources/drawable/Icon.png b/demo/Semi.Avalonia.Demo.Android/Icon.png
similarity index 100%
rename from demo/Semi.Avalonia.Demo.Android/Resources/drawable/Icon.png
rename to demo/Semi.Avalonia.Demo.Android/Icon.png
diff --git a/demo/Semi.Avalonia.Demo.Android/Resources/AboutResources.txt b/demo/Semi.Avalonia.Demo.Android/Resources/AboutResources.txt
new file mode 100644
index 0000000..c2bca97
--- /dev/null
+++ b/demo/Semi.Avalonia.Demo.Android/Resources/AboutResources.txt
@@ -0,0 +1,44 @@
+Images, layout descriptions, binary blobs and string dictionaries can be included 
+in your application as resource files.  Various Android APIs are designed to 
+operate on the resource IDs instead of dealing with images, strings or binary blobs 
+directly.
+
+For example, a sample Android app that contains a user interface layout (main.axml),
+an internationalization string table (strings.xml) and some icons (drawable-XXX/icon.png) 
+would keep its resources in the "Resources" directory of the application:
+
+Resources/
+    drawable/
+        icon.png
+
+    layout/
+        main.axml
+
+    values/
+        strings.xml
+
+In order to get the build system to recognize Android resources, set the build action to
+"AndroidResource".  The native Android APIs do not operate directly with filenames, but 
+instead operate on resource IDs.  When you compile an Android application that uses resources, 
+the build system will package the resources for distribution and generate a class called "R" 
+(this is an Android convention) that contains the tokens for each one of the resources 
+included. For example, for the above Resources layout, this is what the R class would expose:
+
+public class R {
+    public class drawable {
+        public const int icon = 0x123;
+    }
+
+    public class layout {
+        public const int main = 0x456;
+    }
+
+    public class strings {
+        public const int first_string = 0xabc;
+        public const int second_string = 0xbcd;
+    }
+}
+
+You would then use R.drawable.icon to reference the drawable/icon.png file, or R.layout.main 
+to reference the layout/main.axml file, or R.strings.first_string to reference the first 
+string in the dictionary file values/strings.xml.
\ No newline at end of file
diff --git a/demo/Semi.Avalonia.Demo.Android/Resources/drawable-night-v31/avalonia_anim.xml b/demo/Semi.Avalonia.Demo.Android/Resources/drawable-night-v31/avalonia_anim.xml
new file mode 100644
index 0000000..dde4b5a
--- /dev/null
+++ b/demo/Semi.Avalonia.Demo.Android/Resources/drawable-night-v31/avalonia_anim.xml
@@ -0,0 +1,66 @@
+<animated-vector
+  xmlns:android="http://schemas.android.com/apk/res/android"
+  xmlns:aapt="http://schemas.android.com/aapt">
+  <aapt:attr name="android:drawable">
+    <vector
+      android:name="vector"
+      android:width="128dp"
+      android:height="128dp"
+      android:viewportWidth="128"
+      android:viewportHeight="128">
+      <group
+        android:name="wrapper"
+        android:translateX="21"
+        android:translateY="21">
+        <group android:name="group">
+          <path
+            android:name="path"
+            android:pathData="M 74.853 85.823 L 75.368 85.823 C 80.735 85.823 85.144 81.803 85.761 76.602 L 85.836 41.76 C 85.225 18.593 66.254 0 42.939 0 C 19.24 0 0.028 19.212 0.028 42.912 C 0.028 66.357 18.831 85.418 42.18 85.823 L 74.853 85.823 Z"
+            android:strokeWidth="1"/>
+          <path
+            android:name="path_1"
+            android:pathData="M 43.059 14.614 C 29.551 14.614 18.256 24.082 15.445 36.743 C 18.136 37.498 20.109 39.968 20.109 42.899 C 20.109 45.831 18.136 48.301 15.445 49.055 C 18.256 61.716 29.551 71.184 43.059 71.184 C 47.975 71.184 52.599 69.93 56.628 67.723 L 56.628 70.993 L 71.344 70.993 L 71.344 44.072 C 71.357 43.714 71.344 43.26 71.344 42.899 C 71.344 27.278 58.68 14.614 43.059 14.614 Z M 29.51 42.899 C 29.51 35.416 35.576 29.35 43.059 29.35 C 50.541 29.35 56.607 35.416 56.607 42.899 C 56.607 50.382 50.541 56.448 43.059 56.448 C 35.576 56.448 29.51 50.382 29.51 42.899 Z"
+            android:strokeWidth="1"
+            android:fillType="evenOdd"/>
+          <path
+            android:name="path_2"
+            android:pathData="M 18.105 42.88 C 18.105 45.38 16.078 47.407 13.579 47.407 C 11.079 47.407 9.052 45.38 9.052 42.88 C 9.052 40.381 11.079 38.354 13.579 38.354 C 16.078 38.354 18.105 40.381 18.105 42.88 Z"
+            android:strokeWidth="1"/>
+        </group>
+      </group>
+    </vector>
+  </aapt:attr>
+  <target android:name="path">
+    <aapt:attr name="android:animation">
+      <objectAnimator
+        android:propertyName="fillColor"
+        android:duration="1000"
+        android:valueFrom="#00ffffff"
+        android:valueTo="#161c2d"
+        android:valueType="colorType"
+        android:interpolator="@android:interpolator/fast_out_slow_in"/>
+    </aapt:attr>
+  </target>
+  <target android:name="path_1">
+    <aapt:attr name="android:animation">
+      <objectAnimator
+        android:propertyName="fillColor"
+        android:duration="1000"
+        android:valueFrom="#00ffffff"
+        android:valueTo="#f9f9fb"
+        android:valueType="colorType"
+        android:interpolator="@android:interpolator/fast_out_slow_in"/>
+    </aapt:attr>
+  </target>
+  <target android:name="path_2">
+    <aapt:attr name="android:animation">
+      <objectAnimator
+        android:propertyName="fillColor"
+        android:duration="1000"
+        android:valueFrom="#00ffffff"
+        android:valueTo="#f9f9fb"
+        android:valueType="colorType"
+        android:interpolator="@android:interpolator/fast_out_slow_in"/>
+    </aapt:attr>
+  </target>
+</animated-vector>
diff --git a/demo/Semi.Avalonia.Demo.Android/Resources/drawable-v31/avalonia_anim.xml b/demo/Semi.Avalonia.Demo.Android/Resources/drawable-v31/avalonia_anim.xml
new file mode 100644
index 0000000..94f27d9
--- /dev/null
+++ b/demo/Semi.Avalonia.Demo.Android/Resources/drawable-v31/avalonia_anim.xml
@@ -0,0 +1,71 @@
+<animated-vector
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt">
+    <aapt:attr name="android:drawable">
+        <vector
+            android:name="vector"
+            android:width="128dp"
+            android:height="128dp"
+            android:viewportWidth="128"
+            android:viewportHeight="128">
+            <group
+                android:name="wrapper"
+                android:translateX="21"
+                android:translateY="21">
+                <group android:name="group">
+                    <path
+                        android:name="path"
+                        android:pathData="M 74.853 85.823 L 75.368 85.823 C 80.735 85.823 85.144 81.803 85.761 76.602 L 85.836 41.76 C 85.225 18.593 66.254 0 42.939 0 C 19.24 0 0.028 19.212 0.028 42.912 C 0.028 66.357 18.831 85.418 42.18 85.823 L 74.853 85.823 Z"
+                        android:fillColor="#00ffffff"
+                        android:strokeWidth="1"/>
+                    <path
+                        android:name="path_1"
+                        android:pathData="M 43.059 14.614 C 29.551 14.614 18.256 24.082 15.445 36.743 C 18.136 37.498 20.109 39.968 20.109 42.899 C 20.109 45.831 18.136 48.301 15.445 49.055 C 18.256 61.716 29.551 71.184 43.059 71.184 C 47.975 71.184 52.599 69.93 56.628 67.723 L 56.628 70.993 L 71.344 70.993 L 71.344 44.072 C 71.357 43.714 71.344 43.26 71.344 42.899 C 71.344 27.278 58.68 14.614 43.059 14.614 Z M 29.51 42.899 C 29.51 35.416 35.576 29.35 43.059 29.35 C 50.541 29.35 56.607 35.416 56.607 42.899 C 56.607 50.382 50.541 56.448 43.059 56.448 C 35.576 56.448 29.51 50.382 29.51 42.899 Z"
+                        android:fillColor="#00ffffff"
+                        android:strokeWidth="1"
+                        android:fillType="evenOdd"/>
+                    <path
+                        android:name="path_2"
+                        android:pathData="M 18.105 42.88 C 18.105 45.38 16.078 47.407 13.579 47.407 C 11.079 47.407 9.052 45.38 9.052 42.88 C 9.052 40.381 11.079 38.354 13.579 38.354 C 16.078 38.354 18.105 40.381 18.105 42.88 Z"
+                        android:fillColor="#00ffffff"
+                        android:strokeWidth="1"/>
+                </group>
+            </group>
+        </vector>
+    </aapt:attr>
+    <target android:name="path_2">
+        <aapt:attr name="android:animation">
+            <objectAnimator
+                android:propertyName="fillColor"
+                android:startOffset="100"
+                android:duration="900"
+                android:valueFrom="#00ffffff"
+                android:valueTo="#161c2d"
+                android:valueType="colorType"
+                android:interpolator="@android:interpolator/fast_out_slow_in"/>
+        </aapt:attr>
+    </target>
+    <target android:name="path">
+        <aapt:attr name="android:animation">
+            <objectAnimator
+                android:propertyName="fillColor"
+                android:duration="500"
+                android:valueFrom="#00ffffff"
+                android:valueTo="#f9f9fb"
+                android:valueType="colorType"
+                android:interpolator="@android:interpolator/fast_out_slow_in"/>
+        </aapt:attr>
+    </target>
+    <target android:name="path_1">
+        <aapt:attr name="android:animation">
+            <objectAnimator
+                android:propertyName="fillColor"
+                android:startOffset="100"
+                android:duration="900"
+                android:valueFrom="#00ffffff"
+                android:valueTo="#161c2d"
+                android:valueType="colorType"
+                android:interpolator="@android:interpolator/fast_out_slow_in"/>
+        </aapt:attr>
+    </target>
+</animated-vector>
diff --git a/demo/Semi.Avalonia.Demo.Android/Resources/values-night/colors.xml b/demo/Semi.Avalonia.Demo.Android/Resources/values-night/colors.xml
new file mode 100644
index 0000000..3d47b6f
--- /dev/null
+++ b/demo/Semi.Avalonia.Demo.Android/Resources/values-night/colors.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+  <color name="splash_background">#212121</color>
+</resources>
diff --git a/demo/Semi.Avalonia.Demo.Android/Resources/values-v31/styles.xml b/demo/Semi.Avalonia.Demo.Android/Resources/values-v31/styles.xml
new file mode 100644
index 0000000..d5ecec4
--- /dev/null
+++ b/demo/Semi.Avalonia.Demo.Android/Resources/values-v31/styles.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<resources>
+
+  <style name="MyTheme">
+  </style>
+
+  <style name="MyTheme.NoActionBar" parent="@style/Theme.AppCompat.NoActionBar">
+    <item name="android:windowActionBar">false</item>
+    <item name="android:windowBackground">@null</item>
+    <item name="android:windowNoTitle">true</item>
+    <item name="android:windowSplashScreenBackground">@color/splash_background</item>
+    <item name="android:windowSplashScreenAnimatedIcon">@drawable/avalonia_anim</item>
+    <item name="android:windowSplashScreenAnimationDuration">1000</item>
+    <item name="postSplashScreenTheme">@style/MyTheme.Main</item>
+
+  </style>
+  <style name="MyTheme.Main"
+         parent ="MyTheme.NoActionBar">
+    <item name="android:windowIsTranslucent">true</item>
+  </style>
+</resources>
diff --git a/demo/Semi.Avalonia.Demo.Android/Resources/values/styles.xml b/demo/Semi.Avalonia.Demo.Android/Resources/values/styles.xml
index b184ab9..6e534de 100644
--- a/demo/Semi.Avalonia.Demo.Android/Resources/values/styles.xml
+++ b/demo/Semi.Avalonia.Demo.Android/Resources/values/styles.xml
@@ -1,17 +1,12 @@
-<?xml version="1.0" encoding="utf-8" ?>
+<?xml version="1.0" encoding="utf-8" ?>
 <resources>
 
   <style name="MyTheme">
   </style>
 
-  <style name="MyTheme.NoActionBar" parent="@style/Theme.AppCompat.NoActionBar">
+  <style name="MyTheme.NoActionBar" parent="@style/Theme.AppCompat.DayNight.NoActionBar">
     <item name="android:windowActionBar">false</item>
+    <item name="android:windowBackground">@drawable/splash_screen</item>
     <item name="android:windowNoTitle">true</item>
   </style>
-
-  <style name="MyTheme.Splash" parent ="MyTheme.NoActionBar">
-    <item name="android:windowBackground">@drawable/splash_screen</item>
-    <item name="android:windowContentOverlay">@null</item>
-  </style>
-
 </resources>
diff --git a/demo/Semi.Avalonia.Demo.Android/Semi.Avalonia.Demo.Android.csproj b/demo/Semi.Avalonia.Demo.Android/Semi.Avalonia.Demo.Android.csproj
index 2a1b2ad..1c08a69 100644
--- a/demo/Semi.Avalonia.Demo.Android/Semi.Avalonia.Demo.Android.csproj
+++ b/demo/Semi.Avalonia.Demo.Android/Semi.Avalonia.Demo.Android.csproj
@@ -3,23 +3,28 @@
         <OutputType>Exe</OutputType>
         <TargetFramework>net8.0-android</TargetFramework>
         <SupportedOSPlatformVersion>21</SupportedOSPlatformVersion>
+        <Nullable>enable</Nullable>
         <ApplicationId>com.irihitech.Semi.Avalonia</ApplicationId>
         <ApplicationVersion>1</ApplicationVersion>
         <ApplicationDisplayVersion>1.0</ApplicationDisplayVersion>
         <AndroidPackageFormat>apk</AndroidPackageFormat>
-        <AndroidEnableProfiledAot>False</AndroidEnableProfiledAot>
+        <AndroidEnableProfiledAot>false</AndroidEnableProfiledAot>
         <EmbedAssembliesIntoApk>true</EmbedAssembliesIntoApk>
         <RootNamespace>Semi.Avalonia.Demo.Android</RootNamespace>
     </PropertyGroup>
 
-    <Import Project="../Directory.Build.props" />
-
     <ItemGroup>
-      <PackageReference Include="Avalonia.Android" Version="$(AvaloniaVersion)" />
+        <AndroidResource Include="Icon.png">
+            <Link>Resources\drawable\Icon.png</Link>
+        </AndroidResource>
     </ItemGroup>
 
     <ItemGroup>
-      <ProjectReference Include="..\Semi.Avalonia.Demo\Semi.Avalonia.Demo.csproj" />
+        <PackageReference Include="Avalonia.Android" Version="$(AvaloniaVersion)"/>
+        <PackageReference Include="Xamarin.AndroidX.Core.SplashScreen" Version="1.0.1.1"/>
+    </ItemGroup>
+
+    <ItemGroup>
+        <ProjectReference Include="..\Semi.Avalonia.Demo\Semi.Avalonia.Demo.csproj"/>
     </ItemGroup>
-    
 </Project>
\ No newline at end of file