[Expressive design] update AlertDialog style

Bug: 394699422
Test: visual
Flag: EXEMPT resource update
Change-Id: Ifa12a937e7678214b32b4db6a38c08bb2d670c23
diff --git a/packages/SettingsLib/SettingsTheme/res/drawable/settingslib_expressive_button_background_filled.xml b/packages/SettingsLib/SettingsTheme/res/drawable/settingslib_expressive_button_background_filled.xml
new file mode 100644
index 0000000..68cc058
--- /dev/null
+++ b/packages/SettingsLib/SettingsTheme/res/drawable/settingslib_expressive_button_background_filled.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright (C) 2025 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <solid android:color="@color/settingslib_materialColorPrimary"/>
+    <corners android:radius="@dimen/settingslib_expressive_radius_full"/>
+</shape>
\ No newline at end of file
diff --git a/packages/SettingsLib/SettingsTheme/res/drawable/settingslib_expressive_button_background_outline.xml b/packages/SettingsLib/SettingsTheme/res/drawable/settingslib_expressive_button_background_outline.xml
new file mode 100644
index 0000000..213289d
--- /dev/null
+++ b/packages/SettingsLib/SettingsTheme/res/drawable/settingslib_expressive_button_background_outline.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  Copyright (C) 2025 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <stroke android:width="1dp"
+        android:color="@color/settingslib_materialColorOutlineVariant"/>
+    <corners android:radius="@dimen/settingslib_expressive_radius_full"/>
+</shape>
\ No newline at end of file
diff --git a/packages/SettingsLib/SettingsTheme/res/values-v36/styles_expressive.xml b/packages/SettingsLib/SettingsTheme/res/values-v36/styles_expressive.xml
index 3af88c4..de48f99 100644
--- a/packages/SettingsLib/SettingsTheme/res/values-v36/styles_expressive.xml
+++ b/packages/SettingsLib/SettingsTheme/res/values-v36/styles_expressive.xml
@@ -90,4 +90,39 @@
         parent="@style/TextAppearance.SettingsLib.BodyMedium">
         <item name="android:textColor">@color/settingslib_text_color_secondary</item>
     </style>
+
+    <style name="Widget.SettingsLib.DialogWindowTitle" parent="">
+        <item name="android:scrollHorizontally">false</item>
+        <item name="android:ellipsize">end</item>
+        <item name="android:textAppearance">@style/TextAppearance.SettingsLib.HeadlineSmall</item>
+    </style>
+
+    <style name="Widget.SettingsLib.ButtonBar" parent="@style/Widget.AppCompat.ButtonBar.AlertDialog">
+        <item name="android:paddingTop">@dimen/settingslib_expressive_space_extrasmall2</item>
+        <item name="android:paddingBottom">@dimen/settingslib_expressive_space_small4</item>
+    </style>
+
+    <style name="Widget.SettingsLib.DialogButton" parent="@style/Widget.AppCompat.Button">
+        <item name="android:layout_height">wrap_content</item>
+        <item name="android:minHeight">0dp</item>
+        <item name="android:minWidth">0dp</item>
+        <item name="android:paddingVertical">@dimen/settingslib_expressive_space_extrasmall5</item>
+        <item name="android:paddingHorizontal">@dimen/settingslib_expressive_space_small1</item>
+        <item name="android:stateListAnimator">@null</item>
+        <item name="textAllCaps">false</item>
+        <item name="android:textAppearance">@style/TextAppearance.SettingsLib.LabelLarge</item>
+        <item name="android:textColor">@color/settingslib_materialColorPrimary</item>
+        <item name="android:background">@android:color/transparent</item>
+    </style>
+
+    <style name="Widget.SettingsLib.DialogButton.Filled">
+        <item name="android:layout_marginEnd">@dimen/settingslib_expressive_space_extrasmall6</item>
+        <item name="android:background">@drawable/settingslib_expressive_button_background_filled</item>
+        <item name="android:textColor">@color/settingslib_materialColorOnPrimary</item>
+    </style>
+
+    <style name="Widget.SettingsLib.DialogButton.Outline">
+        <item name="android:layout_marginEnd">@dimen/settingslib_expressive_space_extrasmall4</item>
+        <item name="android:background">@drawable/settingslib_expressive_button_background_outline</item>
+    </style>
 </resources>
\ No newline at end of file
diff --git a/packages/SettingsLib/SettingsTheme/res/values-v36/themes_expressive.xml b/packages/SettingsLib/SettingsTheme/res/values-v36/themes_expressive.xml
index 14f214a..5173ebe 100644
--- a/packages/SettingsLib/SettingsTheme/res/values-v36/themes_expressive.xml
+++ b/packages/SettingsLib/SettingsTheme/res/values-v36/themes_expressive.xml
@@ -53,6 +53,17 @@
         <item name="colorControlNormal">?android:attr/colorControlNormal</item>
 
         <!-- For AndroidX AlertDialog -->
-        <!--item name="alertDialogTheme">@style/Theme.AlertDialog.SettingsLib</item-->
+        <item name="alertDialogTheme">@style/Theme.AlertDialog.SettingsLib.Expressive</item>
+    </style>
+
+    <style name="Theme.AlertDialog.SettingsLib.Expressive">
+        <item name="colorAccent">@color/settingslib_materialColorPrimary</item>
+        <item name="android:colorBackground">@color/settingslib_materialColorSurfaceContainerHigh</item>
+        <item name="android:windowTitleStyle">@style/Widget.SettingsLib.DialogWindowTitle</item>
+        <item name="dialogPreferredPadding">@dimen/settingslib_expressive_space_small4</item>
+        <item name="buttonBarStyle">@style/Widget.SettingsLib.ButtonBar</item>
+        <item name="buttonBarPositiveButtonStyle">@style/Widget.SettingsLib.DialogButton.Filled</item>
+        <item name="buttonBarNegativeButtonStyle">@style/Widget.SettingsLib.DialogButton.Outline</item>
+        <item name="buttonBarNeutralButtonStyle">@style/Widget.SettingsLib.DialogButton</item>
     </style>
 </resources>
\ No newline at end of file