From 23d3eccfa38d8457a4486781f9997ac2ac0f5119 Mon Sep 17 00:00:00 2001
From: Mill Chen <millchen@google.com>
Date: Tue, 23 Mar 2021 23:09:47 +0800
Subject: [PATCH] Integrate new version of MDC-android release

1. Add color fill on scroll
2. Add collapsing title fading

Bug: 183496853
Test: visual verified
Change-Id: I5d0ae0b10d9f0eae843cd4935c075488a960d3f3
---
 .../settings_collapsing_base_layout.xml       | 19 ++++++++++++-------
 res/values-night/themes.xml                   |  5 +++--
 res/values/themes.xml                         |  7 +++++--
 3 files changed, 20 insertions(+), 11 deletions(-)

diff --git a/res/layout/settings_collapsing_base_layout.xml b/res/layout/settings_collapsing_base_layout.xml
index 7ebf4334513..ca9c132af5f 100644
--- a/res/layout/settings_collapsing_base_layout.xml
+++ b/res/layout/settings_collapsing_base_layout.xml
@@ -20,24 +20,29 @@
     android:id="@+id/content_parent"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:transitionGroup="true">
+    android:fitsSystemWindows="true">
 
     <com.google.android.material.appbar.AppBarLayout
         android:id="@+id/app_bar"
         android:layout_width="match_parent"
-        android:layout_height="180dp"
+        android:layout_height="wrap_content"
+        android:fitsSystemWindows="true"
+        android:outlineAmbientShadowColor="@android:color/transparent"
+        android:outlineSpotShadowColor="@android:color/transparent"
+        android:background="?android:attr/colorPrimary"
         android:theme="@style/Theme.CollapsingToolbar.Settings">
 
         <com.google.android.material.appbar.CollapsingToolbarLayout
             android:id="@+id/collapsing_toolbar"
-            android:background="?android:attr/colorPrimary"
             android:layout_width="match_parent"
-            android:layout_height="match_parent"
+            android:layout_height="226dp"
             app:maxLines="3"
-            app:contentScrim="?android:attr/colorPrimary"
+            app:layout_scrollFlags="scroll|exitUntilCollapsed|snap"
+            app:scrimAnimationDuration="150"
+            app:scrimVisibleHeightTrigger="174dp"
+            app:statusBarScrim="@empty"
+            app:titleCollapseMode="fade"
             app:collapsedTitleTextAppearance="@style/ToolbarText.Collapsed"
-            app:statusBarScrim="?android:attr/colorPrimary"
-            app:layout_scrollFlags="scroll|exitUntilCollapsed"
             app:expandedTitleMarginStart="18dp"
             app:expandedTitleMarginEnd="16dp"
             app:toolbarId="@id/action_bar">
diff --git a/res/values-night/themes.xml b/res/values-night/themes.xml
index a4f495a6507..604610d37f0 100644
--- a/res/values-night/themes.xml
+++ b/res/values-night/themes.xml
@@ -45,8 +45,9 @@
         <item name="colorPrimary">@*android:color/edge_effect_device_default_dark</item>
     </style>
 
-    <style name="Theme.CollapsingToolbar.Settings"
-           parent="@style/Theme.MaterialComponents.DayNight">
+    <style name="Theme.CollapsingToolbar.Settings" parent="@style/Theme.MaterialComponents.DayNight">
+        <item name="elevationOverlayEnabled">true</item>
+        <item name="elevationOverlayColor">?attr/colorPrimary</item>
         <item name="colorPrimary">@*android:color/primary_dark_device_default_settings</item>
         <item name="colorAccent">@*android:color/accent_device_default_dark</item>
     </style>
diff --git a/res/values/themes.xml b/res/values/themes.xml
index d7b3257f753..4df4a78f31e 100644
--- a/res/values/themes.xml
+++ b/res/values/themes.xml
@@ -74,6 +74,8 @@
         <item name="android:actionBarStyle">@style/Widget.ActionBar.SubSettings</item>
 
         <item name="switchBarTheme">@style/ThemeOverlay.SwitchBar.Settings</item>
+        <item name="android:navigationBarColor">@android:color/transparent</item>
+        <item name="android:statusBarColor">@android:color/transparent</item>
     </style>
 
     <style name="Theme.SubSettings" parent="Theme.SubSettings.Base"/>
@@ -272,8 +274,9 @@
         <item name="colorPrimary">@*android:color/edge_effect_device_default_light</item>
     </style>
 
-    <style name="Theme.CollapsingToolbar.Settings"
-           parent="@style/Theme.MaterialComponents.DayNight">
+    <style name="Theme.CollapsingToolbar.Settings" parent="@style/Theme.MaterialComponents.DayNight">
+        <item name="elevationOverlayEnabled">true</item>
+        <item name="elevationOverlayColor">?attr/colorPrimary</item>
         <item name="colorPrimary">@*android:color/primary_device_default_settings_light</item>
         <item name="colorAccent">@*android:color/accent_device_default_light</item>
     </style>