Restructure app info page

When the collapsing toolbar is applied in the Settings app, some pages
they used manage_applications_apps will have the collapsing toolbar not
work properly. This was caused by using multiple CoordinatorLayout and
AppBarLayout in these pages.

Bug: 177375909
Test: visual verified
Change-Id: Ibfeeab9cf907a23d18ee1ec2c450c523316cfc92
diff --git a/res/layout/manage_applications_apps_v2.xml b/res/layout/manage_applications_apps_v2.xml
new file mode 100644
index 0000000..ecc764a
--- /dev/null
+++ b/res/layout/manage_applications_apps_v2.xml
@@ -0,0 +1,63 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2021 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.
+-->
+
+<FrameLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:settings="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <FrameLayout
+        android:id="@+id/pinned_header"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:elevation="2dp"/>
+
+    <FrameLayout
+        android:id="@+id/list_container"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:visibility="gone">
+
+        <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/apps_list"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:clipToPadding="false"
+            android:scrollbars="none"
+            settings:fastScrollEnabled="true"
+            settings:fastScrollHorizontalThumbDrawable="@drawable/thumb_drawable"
+            settings:fastScrollHorizontalTrackDrawable="@drawable/line_drawable"
+            settings:fastScrollVerticalThumbDrawable="@drawable/thumb_drawable"
+            settings:fastScrollVerticalTrackDrawable="@drawable/line_drawable"/>
+
+        <TextView
+            android:id="@android:id/empty"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:gravity="center"
+            android:layout_gravity="center"
+            android:text="@string/no_applications"
+            android:textAppearance="?android:attr/textAppearanceLarge"
+            android:visibility="invisible"/>
+
+    </FrameLayout>
+
+    <include layout="@layout/loading_container"/>
+
+</FrameLayout>
+
+
diff --git a/src/com/android/settings/applications/manageapplications/ManageApplications.java b/src/com/android/settings/applications/manageapplications/ManageApplications.java
index c699425..707e6f4 100644
--- a/src/com/android/settings/applications/manageapplications/ManageApplications.java
+++ b/src/com/android/settings/applications/manageapplications/ManageApplications.java
@@ -398,7 +398,11 @@
             return mRootView;
         }
 
-        mRootView = inflater.inflate(R.layout.manage_applications_apps, null);
+        if (FeatureFlagUtils.isEnabled(getContext(), FeatureFlags.SILKY_HOME)) {
+            mRootView = inflater.inflate(R.layout.manage_applications_apps_v2, null);
+        } else {
+            mRootView = inflater.inflate(R.layout.manage_applications_apps, null);
+        }
         mLoadingContainer = mRootView.findViewById(R.id.loading_container);
         mListContainer = mRootView.findViewById(R.id.list_container);
         if (mListContainer != null) {