From 01eddeace4a78b70287b2844bb62464edcfe6c91 Mon Sep 17 00:00:00 2001
From: Chaohui Wang <chaohuiw@google.com>
Date: Tue, 15 Mar 2022 15:16:46 +0800
Subject: [PATCH] Fix Preference title not grey out when disabled

Before fix: https://screenshot.googleplex.com/38h2CFh2prk39fM
After fix: https://screenshot.googleplex.com/Aq56r2GsMRrcSCm

Bug: 223602527
Test: On Pixel device
Change-Id: Ib5338f7600211d4463032c1303ee280053a7db7c
---
 .../settingslib_text_color_primary.xml        | 22 +++++++++++++++++++
 .../SettingsTheme/res/values-v31/styles.xml   |  2 +-
 2 files changed, 23 insertions(+), 1 deletion(-)
 create mode 100644 packages/SettingsLib/SettingsTheme/res/color-v31/settingslib_text_color_primary.xml

diff --git a/packages/SettingsLib/SettingsTheme/res/color-v31/settingslib_text_color_primary.xml b/packages/SettingsLib/SettingsTheme/res/color-v31/settingslib_text_color_primary.xml
new file mode 100644
index 0000000000000..221d2db00031a
--- /dev/null
+++ b/packages/SettingsLib/SettingsTheme/res/color-v31/settingslib_text_color_primary.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2022 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.
+-->
+
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_enabled="false"
+        android:alpha="?android:attr/disabledAlpha"
+        android:color="@color/settingslib_text_color_primary_device_default"/>
+    <item android:color="@color/settingslib_text_color_primary_device_default"/>
+</selector>
diff --git a/packages/SettingsLib/SettingsTheme/res/values-v31/styles.xml b/packages/SettingsLib/SettingsTheme/res/values-v31/styles.xml
index 9d3991119338c..cba1a9cf0003e 100644
--- a/packages/SettingsLib/SettingsTheme/res/values-v31/styles.xml
+++ b/packages/SettingsLib/SettingsTheme/res/values-v31/styles.xml
@@ -17,7 +17,7 @@
 <resources>
     <style name="TextAppearance.PreferenceTitle.SettingsLib"
            parent="@android:style/TextAppearance.Material.Subhead">
-        <item name="android:textColor">@color/settingslib_text_color_primary_device_default</item>
+        <item name="android:textColor">@color/settingslib_text_color_primary</item>
         <item name="android:fontFamily">@string/settingslib_config_headlineFontFamily</item>
         <item name="android:textSize">20sp</item>
     </style>