Fix crash when dynamic_homepage flag is off.

This partially rolls back ag/5650901. We should revert this change when
dynamic_homepage flag is permanently on.

Change-Id: I5e340421d04bc20c77dd30395fd8522693807954
Fixes: 118444000
Test: manual

AndroidManifest.xml

@@ -114,6 +114,14 @@
         <uses-library android:name="org.apache.http.legacy" />
         <!-- Settings -->
 
+        <!-- TODO(b/118444000): Remove this. -->
+        <activity android:name="SettingsActivity"
+                  android:label="@string/settings_label_launcher"
+                  android:launchMode="singleTask">
+            <meta-data android:name="com.android.settings.PRIMARY_PROFILE_CONTROLLED"
+                       android:value="true" />
+        </activity>
+
         <activity android:name=".homepage.SettingsHomepageActivity"
                   android:label="@string/settings_label_launcher"
                   android:theme="@style/Theme.Settings.Home"

res/layout/settings_main_dashboard.xml

@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2018 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.
+-->
+
+<!-- TODO(118444000): Remove this -->
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <include layout="@layout/search_bar" />
+
+    <FrameLayout
+        android:id="@+id/main_content"
+        android:layout_height="match_parent"
+        android:layout_width="match_parent" />
+</LinearLayout>

res/values/themes.xml

@@ -54,6 +54,10 @@
         <item name="batteryGoodColor">@color/battery_good_color_light</item>
         <item name="batteryMaybeColor">@color/battery_maybe_color_light</item>
         <item name="batteryBadColor">@color/battery_bad_color_light</item>
+
+        <!-- TODO(118444000): Remove colorPrimary and colorPrimaryVariant -->
+        <item name="colorPrimary">@*android:color/primary_device_default_settings_light</item>
+        <item name="colorPrimaryVariant">@android:color/white</item>
     </style>
 
     <!-- Variant of the settings theme with no action bar. -->

src/com/android/settings/SettingsActivity.java

@@ -35,9 +35,9 @@ import android.text.TextUtils;
 import android.transition.TransitionManager;
 import android.util.Log;
 import android.view.View;
-import android.view.View.OnClickListener;
 import android.view.ViewGroup;
 import android.widget.Button;
+import android.widget.Toolbar;
 
 import androidx.annotation.Nullable;
 import androidx.annotation.VisibleForTesting;
@@ -168,6 +168,12 @@ public class SettingsActivity extends SettingsBaseActivity
 
     private Button mNextButton;
 
+    /**
+     * TODO(b/118444000): Remove this and all related code.
+     */
+    @Deprecated
+    private boolean mIsShowingDashboard;
+
     private ViewGroup mContent;
 
     // Categories
@@ -250,7 +256,11 @@ public class SettingsActivity extends SettingsBaseActivity
             setTheme(R.style.Theme_SubSettings);
         }
 
-        setContentView(R.layout.settings_main_prefs);
+        mIsShowingDashboard = TextUtils.equals(
+                SettingsActivity.class.getName(), intent.getComponent().getClassName());
+
+        setContentView(mIsShowingDashboard ?
+                R.layout.settings_main_dashboard : R.layout.settings_main_prefs);
 
         mContent = findViewById(R.id.main_content);
 
@@ -273,12 +283,21 @@ public class SettingsActivity extends SettingsBaseActivity
         }
 
         final boolean deviceProvisioned = Utils.isDeviceProvisioned(this);
+        if (mIsShowingDashboard) {
+            findViewById(R.id.search_bar).setVisibility(
+                    deviceProvisioned ? View.VISIBLE : View.INVISIBLE);
+            findViewById(R.id.action_bar).setVisibility(View.GONE);
+            final Toolbar toolbar = findViewById(R.id.search_action_bar);
+            setActionBar(toolbar);
+            FeatureFactory.getFactory(this).getSearchFeatureProvider()
+                    .initSearchToolbar(this, toolbar);
+        }
 
         ActionBar actionBar = getActionBar();
         if (actionBar != null) {
             actionBar.setDisplayHomeAsUpEnabled(deviceProvisioned);
             actionBar.setHomeButtonEnabled(deviceProvisioned);
-            actionBar.setDisplayShowTitleEnabled(true);
+            actionBar.setDisplayShowTitleEnabled(!mIsShowingDashboard);
         }
         mSwitchBar = findViewById(R.id.switch_bar);
         if (mSwitchBar != null) {
@@ -292,26 +311,20 @@ public class SettingsActivity extends SettingsBaseActivity
             if (buttonBar != null) {
                 buttonBar.setVisibility(View.VISIBLE);
 
-                Button backButton = (Button) findViewById(R.id.back_button);
+                Button backButton = findViewById(R.id.back_button);
-                backButton.setOnClickListener(new OnClickListener() {
+                backButton.setOnClickListener(v -> {
-                    public void onClick(View v) {
+                    setResult(RESULT_CANCELED, null);
-                        setResult(RESULT_CANCELED, null);
+                    finish();
-                        finish();
-                    }
                 });
-                Button skipButton = (Button) findViewById(R.id.skip_button);
+                Button skipButton = findViewById(R.id.skip_button);
-                skipButton.setOnClickListener(new OnClickListener() {
+                skipButton.setOnClickListener(v -> {
-                    public void onClick(View v) {
+                    setResult(RESULT_OK, null);
-                        setResult(RESULT_OK, null);
+                    finish();
-                        finish();
-                    }
                 });
-                mNextButton = (Button) findViewById(R.id.next_button);
+                mNextButton = findViewById(R.id.next_button);
-                mNextButton.setOnClickListener(new OnClickListener() {
+                mNextButton.setOnClickListener(v -> {
-                    public void onClick(View v) {
+                    setResult(RESULT_OK, null);
-                        setResult(RESULT_OK, null);
+                    finish();
-                        finish();
-                    }
                 });
 
                 // set our various button parameters