From 224c81c6daa1f4fabebf42085b36bf8b83240034 Mon Sep 17 00:00:00 2001
From: Julia Kawano <jkawano@google.com>
Date: Mon, 17 Aug 2020 23:24:16 +0000
Subject: [PATCH] Add username to status bar and update layout

Update the status bar with the new UX designs:
- Remove driver and passenger HVAC views
- Add driver icon (placeholder) and username aligned to start of bar
- Move system icons aligned to end of bar (previously next to clock)
- Add AM/PM to clock

HVAC will be moved into the navigation bar in a separate change.

Test: manual - change to guest, change username, change to long username (truncates before clock view)
Test: atest :carsysui-presubmit
Bug: 162598687
Change-Id: I5b9095adce7fee0970e8b15d307f01eb4adf2b40
---
 .../res/drawable/car_ic_user_icon.xml         |  25 +++
 .../res/layout/car_top_navigation_bar.xml     | 100 ++++-------
 packages/CarSystemUI/res/values/colors.xml    |   2 +
 packages/CarSystemUI/res/values/dimens.xml    |   5 +-
 packages/CarSystemUI/res/values/styles.xml    |  15 +-
 .../CarNavigationBarController.java           |   6 +
 .../car/statusbar/UserNameViewController.java | 132 +++++++++++++++
 .../CarNavigationBarControllerTest.java       |   5 +-
 .../statusbar/UserNameViewControllerTest.java | 155 ++++++++++++++++++
 9 files changed, 371 insertions(+), 74 deletions(-)
 create mode 100644 packages/CarSystemUI/res/drawable/car_ic_user_icon.xml
 create mode 100644 packages/CarSystemUI/src/com/android/systemui/car/statusbar/UserNameViewController.java
 create mode 100644 packages/CarSystemUI/tests/src/com/android/systemui/car/statusbar/UserNameViewControllerTest.java

diff --git a/packages/CarSystemUI/res/drawable/car_ic_user_icon.xml b/packages/CarSystemUI/res/drawable/car_ic_user_icon.xml
new file mode 100644
index 0000000000000..1195d05da2286
--- /dev/null
+++ b/packages/CarSystemUI/res/drawable/car_ic_user_icon.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2020 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.
+  -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="@dimen/system_bar_icon_drawing_size"
+    android:height="@dimen/system_bar_icon_drawing_size"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+  <path
+      android:pathData="M12,12c2.21,0 4,-1.79 4,-4s-1.79,-4 -4,-4 -4,1.79 -4,4 1.79,4 4,4zM12,14c-2.67,0 -8,1.34 -8,4v2h16v-2c0,-2.66 -5.33,-4 -8,-4z"
+      android:fillColor="@color/system_bar_user_icon_color"/>
+</vector>
\ No newline at end of file
diff --git a/packages/CarSystemUI/res/layout/car_top_navigation_bar.xml b/packages/CarSystemUI/res/layout/car_top_navigation_bar.xml
index cdc29eec21cde..af8482a8c6a51 100644
--- a/packages/CarSystemUI/res/layout/car_top_navigation_bar.xml
+++ b/packages/CarSystemUI/res/layout/car_top_navigation_bar.xml
@@ -31,39 +31,44 @@
         android:layoutDirection="ltr">
 
         <FrameLayout
-            android:id="@+id/left_hvac_container"
+            android:id="@+id/user_name_container"
             android:layout_width="wrap_content"
             android:layout_height="match_parent"
             android:layout_alignParentStart="true"
+            android:layout_toStartOf="@+id/clock_container"
         >
 
             <com.android.systemui.car.navigationbar.CarNavigationButton
-                android:id="@+id/hvacleft"
+                android:id="@+id/user_name"
                 android:layout_width="match_parent"
                 android:layout_height="match_parent"
-                android:background="@null"
-                systemui:broadcast="true"
-                systemui:intent="intent:#Intent;action=android.car.intent.action.TOGGLE_HVAC_CONTROLS;end"
-            />
-
-            <com.android.systemui.car.hvac.AnimatedTemperatureView
-                android:id="@+id/lefttext"
-                android:layout_width="wrap_content"
-                android:layout_height="match_parent"
-                android:paddingStart="@*android:dimen/car_padding_4"
-                android:paddingEnd="16dp"
-                android:gravity="center_vertical|start"
-                android:minEms="4"
-                android:textAppearance="@style/TextAppearance.CarStatus"
-                systemui:hvacAreaId="49"
-                systemui:hvacMaxText="@string/hvac_max_text"
-                systemui:hvacMaxValue="@dimen/hvac_max_value"
-                systemui:hvacMinText="@string/hvac_min_text"
-                systemui:hvacMinValue="@dimen/hvac_min_value"
-                systemui:hvacPivotOffset="60dp"
-                systemui:hvacPropertyId="358614275"
-                systemui:hvacTempFormat="%.0f\u00B0"
-            />
+                systemui:icon="@null"
+                systemui:intent="intent:#Intent;component=com.android.car.settings/.users.UserSwitcherActivity;launchFlags=0x24000000;end"
+            >
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="match_parent"
+                    android:orientation="horizontal"
+                    android:gravity="center_vertical"
+                >
+                    <ImageView
+                        android:id="@+id/user_avatar"
+                        android:layout_width="wrap_content"
+                        android:layout_height="match_parent"
+                        android:src="@drawable/car_ic_user_icon"
+                        android:paddingLeft="@dimen/system_bar_user_icon_padding"
+                        android:paddingRight="@dimen/system_bar_user_icon_padding"
+                    />
+                    <TextView
+                        android:id="@+id/user_name_text"
+                        android:layout_width="wrap_content"
+                        android:layout_height="match_parent"
+                        android:gravity="center_vertical"
+                        android:textAppearance="@style/TextAppearance.SystemBar.Username"
+                        android:maxLines="1"
+                    />
+                </LinearLayout>
+            </com.android.systemui.car.navigationbar.CarNavigationButton>
         </FrameLayout>
 
         <FrameLayout
@@ -86,7 +91,8 @@
                 android:layout_gravity="center"
                 android:elevation="5dp"
                 android:singleLine="true"
-                android:textAppearance="@style/TextAppearance.StatusBar.Clock"
+                android:textAppearance="@style/TextAppearance.SystemBar.Clock"
+                systemui:amPmStyle="normal"
             />
         </FrameLayout>
 
@@ -94,10 +100,9 @@
             android:id="@+id/system_icon_area"
             android:layout_width="wrap_content"
             android:layout_height="match_parent"
-            android:layout_centerHorizontal="true"
+            android:layout_alignParentEnd="true"
             android:layout_centerVertical="true"
-            android:layout_toEndOf="@+id/clock_container"
-            android:paddingStart="@*android:dimen/car_padding_1"
+            android:paddingEnd="@*android:dimen/car_padding_1"
             android:gravity="center_vertical"
             android:orientation="horizontal"
         >
@@ -107,46 +112,9 @@
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:layout_weight="1"
-                android:paddingStart="4dp"
                 android:gravity="center_vertical"
             />
         </LinearLayout>
-
-        <FrameLayout
-            android:id="@+id/right_hvac_container"
-            android:layout_width="wrap_content"
-            android:layout_height="match_parent"
-            android:layout_alignParentEnd="true"
-        >
-
-            <com.android.systemui.car.navigationbar.CarNavigationButton
-                android:id="@+id/hvacright"
-                android:layout_width="match_parent"
-                android:layout_height="match_parent"
-                android:background="@null"
-                systemui:broadcast="true"
-                systemui:intent="intent:#Intent;action=android.car.intent.action.TOGGLE_HVAC_CONTROLS;end"
-            />
-
-            <com.android.systemui.car.hvac.AnimatedTemperatureView
-                android:id="@+id/righttext"
-                android:layout_width="wrap_content"
-                android:layout_height="match_parent"
-                android:paddingStart="16dp"
-                android:paddingEnd="@*android:dimen/car_padding_4"
-                android:gravity="center_vertical|end"
-                android:minEms="4"
-                android:textAppearance="@style/TextAppearance.CarStatus"
-                systemui:hvacAreaId="68"
-                systemui:hvacMaxText="@string/hvac_max_text"
-                systemui:hvacMaxValue="@dimen/hvac_max_value"
-                systemui:hvacMinText="@string/hvac_min_text"
-                systemui:hvacMinValue="@dimen/hvac_min_value"
-                systemui:hvacPivotOffset="60dp"
-                systemui:hvacPropertyId="358614275"
-                systemui:hvacTempFormat="%.0f\u00B0"
-            />
-        </FrameLayout>
     </RelativeLayout>
 
 </com.android.systemui.car.navigationbar.CarNavigationBarView>
diff --git a/packages/CarSystemUI/res/values/colors.xml b/packages/CarSystemUI/res/values/colors.xml
index ab94265935359..98e31b31551ee 100644
--- a/packages/CarSystemUI/res/values/colors.xml
+++ b/packages/CarSystemUI/res/values/colors.xml
@@ -31,6 +31,8 @@
     <color name="docked_divider_background">@*android:color/car_grey_50</color>
     <color name="system_bar_background_opaque">#ff172026</color>
 
+    <!-- colors for status bar -->
+    <color name="system_bar_user_icon_color">#ffffff</color>
     <color name="status_bar_background_color">#33000000</color>
     <drawable name="system_bar_background">@color/status_bar_background_color</drawable>
 
diff --git a/packages/CarSystemUI/res/values/dimens.xml b/packages/CarSystemUI/res/values/dimens.xml
index 8359dac6a30fe..5fb32aff27e82 100644
--- a/packages/CarSystemUI/res/values/dimens.xml
+++ b/packages/CarSystemUI/res/values/dimens.xml
@@ -46,8 +46,9 @@
        in frameworks/base/core package and thus will have no effect if
        set here. See car_product overlay for car specific defaults-->
 
-    <dimen name="status_bar_icon_drawing_size_dark">36dp</dimen>
-    <dimen name="status_bar_icon_drawing_size">36dp</dimen>
+    <dimen name="system_bar_user_icon_padding">16dp</dimen>
+    <dimen name="system_bar_icon_drawing_size_dark">36dp</dimen>
+    <dimen name="system_bar_icon_drawing_size">36dp</dimen>
     <!-- The amount by which to scale up the status bar icons. -->
     <item name="status_bar_icon_scale_factor" format="float" type="dimen">1.75</item>
 
diff --git a/packages/CarSystemUI/res/values/styles.xml b/packages/CarSystemUI/res/values/styles.xml
index e76373d4a4f7b..5b042a4b83ec6 100644
--- a/packages/CarSystemUI/res/values/styles.xml
+++ b/packages/CarSystemUI/res/values/styles.xml
@@ -25,11 +25,16 @@
         <item name="android:padding">22dp</item>
     </style>
 
-    <style name="TextAppearance.StatusBar.Clock"
-        parent="@*android:style/TextAppearance.StatusBar.Icon">
-        <item name="android:textSize">42sp</item>
-        <item name="android:fontFamily">sans-serif-regular</item>
-        <item name="android:textColor">@*android:color/car_grey_50</item>
+    <style name="TextAppearance.SystemBar.Clock"
+           parent="@*android:style/TextAppearance.StatusBar.Icon">
+        <item name="android:textSize">@dimen/car_body1_size</item>
+        <item name="android:textColor">@*android:color/car_headline3</item>
+    </style>
+
+    <style name="TextAppearance.SystemBar.Username"
+           parent="@android:style/TextAppearance.DeviceDefault">
+        <item name="android:textSize">@dimen/car_body3_size</item>
+        <item name="android:textColor">@*android:color/car_headline3</item>
     </style>
 
     <style name="TextAppearance.CarStatus" parent="@android:style/TextAppearance.DeviceDefault">
diff --git a/packages/CarSystemUI/src/com/android/systemui/car/navigationbar/CarNavigationBarController.java b/packages/CarSystemUI/src/com/android/systemui/car/navigationbar/CarNavigationBarController.java
index 51a883809aabf..529083f4bab69 100644
--- a/packages/CarSystemUI/src/com/android/systemui/car/navigationbar/CarNavigationBarController.java
+++ b/packages/CarSystemUI/src/com/android/systemui/car/navigationbar/CarNavigationBarController.java
@@ -23,6 +23,7 @@ import android.view.ViewGroup;
 import androidx.annotation.Nullable;
 
 import com.android.systemui.car.hvac.HvacController;
+import com.android.systemui.car.statusbar.UserNameViewController;
 import com.android.systemui.dagger.SysUISingleton;
 
 import javax.inject.Inject;
@@ -38,6 +39,7 @@ public class CarNavigationBarController {
     private final ButtonSelectionStateController mButtonSelectionStateController;
     private final ButtonRoleHolderController mButtonRoleHolderController;
     private final Lazy<HvacController> mHvacControllerLazy;
+    private final Lazy<UserNameViewController> mUserNameViewControllerLazy;
 
     private boolean mShowTop;
     private boolean mShowBottom;
@@ -60,12 +62,14 @@ public class CarNavigationBarController {
             NavigationBarViewFactory navigationBarViewFactory,
             ButtonSelectionStateController buttonSelectionStateController,
             Lazy<HvacController> hvacControllerLazy,
+            Lazy<UserNameViewController> userNameViewControllerLazy,
             ButtonRoleHolderController buttonRoleHolderController,
             SystemBarConfigs systemBarConfigs) {
         mContext = context;
         mNavigationBarViewFactory = navigationBarViewFactory;
         mButtonSelectionStateController = buttonSelectionStateController;
         mHvacControllerLazy = hvacControllerLazy;
+        mUserNameViewControllerLazy = userNameViewControllerLazy;
         mButtonRoleHolderController = buttonRoleHolderController;
 
         // Read configuration.
@@ -109,6 +113,7 @@ public class CarNavigationBarController {
         mHvacControllerLazy.get().removeAllComponents();
         mButtonSelectionStateController.removeAll();
         mButtonRoleHolderController.removeAll();
+        mUserNameViewControllerLazy.get().removeAll();
     }
 
     /** Gets the top window if configured to do so. */
@@ -218,6 +223,7 @@ public class CarNavigationBarController {
         mButtonSelectionStateController.addAllButtonsWithSelectionState(view);
         mButtonRoleHolderController.addAllButtonsWithRoleName(view);
         mHvacControllerLazy.get().addTemperatureViewToController(view);
+        mUserNameViewControllerLazy.get().addUserNameView(view);
     }
 
     /** Sets a touch listener for the top navigation bar. */
diff --git a/packages/CarSystemUI/src/com/android/systemui/car/statusbar/UserNameViewController.java b/packages/CarSystemUI/src/com/android/systemui/car/statusbar/UserNameViewController.java
new file mode 100644
index 0000000000000..5ef8aa19b1829
--- /dev/null
+++ b/packages/CarSystemUI/src/com/android/systemui/car/statusbar/UserNameViewController.java
@@ -0,0 +1,132 @@
+/*
+ * Copyright (C) 2020 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.
+ */
+
+package com.android.systemui.car.statusbar;
+
+import android.car.Car;
+import android.car.user.CarUserManager;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.pm.UserInfo;
+import android.os.UserHandle;
+import android.os.UserManager;
+import android.util.Log;
+import android.view.View;
+import android.widget.TextView;
+
+import com.android.systemui.R;
+import com.android.systemui.broadcast.BroadcastDispatcher;
+import com.android.systemui.car.CarDeviceProvisionedController;
+import com.android.systemui.car.CarServiceProvider;
+import com.android.systemui.dagger.SysUISingleton;
+
+import javax.inject.Inject;
+
+/**
+ * Controls a TextView with the current driver's username
+ */
+@SysUISingleton
+public class UserNameViewController {
+    private static final String TAG = "UserNameViewController";
+
+    private Context mContext;
+    private UserManager mUserManager;
+    private CarUserManager mCarUserManager;
+    private CarServiceProvider mCarServiceProvider;
+    private CarDeviceProvisionedController mCarDeviceProvisionedController;
+    private BroadcastDispatcher mBroadcastDispatcher;
+    private TextView mUserNameView;
+
+    private final BroadcastReceiver mUserUpdateReceiver = new BroadcastReceiver() {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            updateUser(mCarDeviceProvisionedController.getCurrentUser());
+        }
+    };
+
+    private final CarUserManager.UserLifecycleListener mUserLifecycleListener =
+            new CarUserManager.UserLifecycleListener() {
+                @Override
+                public void onEvent(CarUserManager.UserLifecycleEvent event) {
+                    if (event.getEventType()
+                            == CarUserManager.USER_LIFECYCLE_EVENT_TYPE_SWITCHING) {
+                        updateUser(event.getUserId());
+                    }
+                }
+            };
+
+    @Inject
+    public UserNameViewController(Context context, CarServiceProvider carServiceProvider,
+            UserManager userManager, BroadcastDispatcher broadcastDispatcher,
+            CarDeviceProvisionedController carDeviceProvisionedController) {
+        mContext = context;
+        mCarServiceProvider = carServiceProvider;
+        mUserManager = userManager;
+        mBroadcastDispatcher = broadcastDispatcher;
+        mCarDeviceProvisionedController = carDeviceProvisionedController;
+    }
+
+    /**
+     * Find the {@link TextView} for the driver's user name from a view and if found set it with the
+     * current driver's user name.
+     */
+    public void addUserNameView(View v) {
+        TextView userNameView = v.findViewById(R.id.user_name_text);
+        if (userNameView != null) {
+            if (mUserNameView == null) {
+                registerForUserChangeEvents();
+            }
+            mUserNameView = userNameView;
+            updateUser(mCarDeviceProvisionedController.getCurrentUser());
+        }
+    }
+
+    /**
+     * Clean up the controller and unregister receiver.
+     */
+    public void removeAll() {
+        mBroadcastDispatcher.unregisterReceiver(mUserUpdateReceiver);
+        if (mCarUserManager != null) {
+            mCarUserManager.removeListener(mUserLifecycleListener);
+        }
+    }
+
+    private void registerForUserChangeEvents() {
+        // Register for user switching
+        mCarServiceProvider.addListener(car -> {
+            mCarUserManager = (CarUserManager) car.getCarManager(Car.CAR_USER_SERVICE);
+            if (mCarUserManager != null) {
+                mCarUserManager.addListener(Runnable::run, mUserLifecycleListener);
+            } else {
+                Log.e(TAG, "CarUserManager could not be obtained.");
+            }
+        });
+        // Also register for user info changing
+        IntentFilter filter = new IntentFilter();
+        filter.addAction(Intent.ACTION_USER_INFO_CHANGED);
+        mBroadcastDispatcher.registerReceiver(mUserUpdateReceiver, filter, /* executor= */ null,
+                UserHandle.ALL);
+    }
+
+    private void updateUser(int userId) {
+        if (mUserNameView != null) {
+            UserInfo currentUserInfo = mUserManager.getUserInfo(userId);
+            mUserNameView.setText(currentUserInfo.name);
+        }
+    }
+}
diff --git a/packages/CarSystemUI/tests/src/com/android/systemui/car/navigationbar/CarNavigationBarControllerTest.java b/packages/CarSystemUI/tests/src/com/android/systemui/car/navigationbar/CarNavigationBarControllerTest.java
index 0b164a2e1a51d..5ca6b9bba2e44 100644
--- a/packages/CarSystemUI/tests/src/com/android/systemui/car/navigationbar/CarNavigationBarControllerTest.java
+++ b/packages/CarSystemUI/tests/src/com/android/systemui/car/navigationbar/CarNavigationBarControllerTest.java
@@ -33,6 +33,7 @@ import com.android.systemui.R;
 import com.android.systemui.SysuiTestCase;
 import com.android.systemui.car.CarSystemUiTest;
 import com.android.systemui.car.hvac.HvacController;
+import com.android.systemui.car.statusbar.UserNameViewController;
 import com.android.systemui.plugins.DarkIconDispatcher;
 import com.android.systemui.statusbar.phone.StatusBarIconController;
 
@@ -58,6 +59,8 @@ public class CarNavigationBarControllerTest extends SysuiTestCase {
     private ButtonRoleHolderController mButtonRoleHolderController;
     @Mock
     private HvacController mHvacController;
+    @Mock
+    private UserNameViewController mUserNameViewController;
 
     @Before
     public void setUp() throws Exception {
@@ -73,7 +76,7 @@ public class CarNavigationBarControllerTest extends SysuiTestCase {
     private CarNavigationBarController createNavigationBarController() {
         return new CarNavigationBarController(mContext, mNavigationBarViewFactory,
                 mButtonSelectionStateController, () -> mHvacController,
-                mButtonRoleHolderController,
+                () -> mUserNameViewController, mButtonRoleHolderController,
                 new SystemBarConfigs(mTestableResources.getResources()));
     }
 
diff --git a/packages/CarSystemUI/tests/src/com/android/systemui/car/statusbar/UserNameViewControllerTest.java b/packages/CarSystemUI/tests/src/com/android/systemui/car/statusbar/UserNameViewControllerTest.java
new file mode 100644
index 0000000000000..8f9e56edf4198
--- /dev/null
+++ b/packages/CarSystemUI/tests/src/com/android/systemui/car/statusbar/UserNameViewControllerTest.java
@@ -0,0 +1,155 @@
+/*
+ * Copyright (C) 2020 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.
+ */
+
+package com.android.systemui.car.statusbar;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.reset;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.verifyZeroInteractions;
+import static org.mockito.Mockito.when;
+
+import android.car.Car;
+import android.car.user.CarUserManager;
+import android.content.BroadcastReceiver;
+import android.content.Intent;
+import android.content.pm.UserInfo;
+import android.os.UserManager;
+import android.testing.AndroidTestingRunner;
+import android.testing.TestableLooper;
+import android.view.View;
+import android.widget.TextView;
+
+import androidx.test.filters.SmallTest;
+
+import com.android.systemui.R;
+import com.android.systemui.SysuiTestCase;
+import com.android.systemui.broadcast.BroadcastDispatcher;
+import com.android.systemui.car.CarDeviceProvisionedController;
+import com.android.systemui.car.CarServiceProvider;
+import com.android.systemui.car.CarSystemUiTest;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+
+@CarSystemUiTest
+@RunWith(AndroidTestingRunner.class)
+@TestableLooper.RunWithLooper
+@SmallTest
+public class UserNameViewControllerTest extends SysuiTestCase {
+
+    private final UserInfo mUserInfo1 = new UserInfo(/* id= */ 0, "Test User Name", /* flags= */ 0);
+    private final UserInfo mUserInfo2 = new UserInfo(/* id= */ 1, "Another User", /* flags= */ 0);
+    private TextView mTextView;
+    private UserNameViewController mUserNameViewController;
+
+    @Mock
+    private Car mCar;
+    @Mock
+    private CarUserManager mCarUserManager;
+    @Mock
+    private UserManager mUserManager;
+    @Mock
+    private CarDeviceProvisionedController mCarDeviceProvisionedController;
+    @Mock
+    private BroadcastDispatcher mBroadcastDispatcher;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        when(mUserManager.getUserInfo(mUserInfo1.id)).thenReturn(mUserInfo1);
+        when(mUserManager.getUserInfo(mUserInfo2.id)).thenReturn(mUserInfo2);
+        when(mCar.isConnected()).thenReturn(true);
+        when(mCar.getCarManager(Car.CAR_USER_SERVICE)).thenReturn(mCarUserManager);
+
+        CarServiceProvider carServiceProvider = new CarServiceProvider(mContext, mCar);
+        mUserNameViewController = new UserNameViewController(getContext(), carServiceProvider,
+                mUserManager, mBroadcastDispatcher, mCarDeviceProvisionedController);
+
+        mTextView = new TextView(getContext());
+        mTextView.setId(R.id.user_name_text);
+    }
+
+    @Test
+    public void addUserNameViewToController_updatesUserNameView() {
+        when(mCarDeviceProvisionedController.getCurrentUser()).thenReturn(mUserInfo1.id);
+
+        mUserNameViewController.addUserNameView(mTextView);
+
+        assertEquals(mTextView.getText(), mUserInfo1.name);
+    }
+
+    @Test
+    public void addUserNameViewToController_withNoTextView_doesNotUpdate() {
+        View nullView = new View(getContext());
+        mUserNameViewController.addUserNameView(nullView);
+
+        assertEquals(mTextView.getText(), "");
+        verifyZeroInteractions(mCarDeviceProvisionedController);
+        verifyZeroInteractions(mCarUserManager);
+        verifyZeroInteractions(mUserManager);
+    }
+
+    @Test
+    public void userLifecycleListener_onUserSwitchLifecycleEvent_updatesUserNameView() {
+        ArgumentCaptor<CarUserManager.UserLifecycleListener> userLifecycleListenerArgumentCaptor =
+                ArgumentCaptor.forClass(CarUserManager.UserLifecycleListener.class);
+        when(mCarDeviceProvisionedController.getCurrentUser()).thenReturn(mUserInfo1.id);
+        // Add the initial TextView, which registers the UserLifecycleListener
+        mUserNameViewController.addUserNameView(mTextView);
+        assertEquals(mTextView.getText(), mUserInfo1.name);
+        verify(mCarUserManager).addListener(any(), userLifecycleListenerArgumentCaptor.capture());
+
+        CarUserManager.UserLifecycleEvent event = new CarUserManager.UserLifecycleEvent(
+                CarUserManager.USER_LIFECYCLE_EVENT_TYPE_SWITCHING, /* from= */ mUserInfo1.id,
+                /* to= */ mUserInfo2.id);
+        userLifecycleListenerArgumentCaptor.getValue().onEvent(event);
+
+        assertEquals(mTextView.getText(), mUserInfo2.name);
+    }
+
+    @Test
+    public void userInfoChangedBroadcast_withoutInitializingUserNameView_doesNothing() {
+        getContext().sendBroadcast(new Intent(Intent.ACTION_USER_INFO_CHANGED));
+
+        assertEquals(mTextView.getText(), "");
+        verifyZeroInteractions(mCarDeviceProvisionedController);
+    }
+
+    @Test
+    public void userInfoChangedBroadcast_withUserNameViewInitialized_updatesUserNameView() {
+        ArgumentCaptor<BroadcastReceiver> broadcastReceiverArgumentCaptor = ArgumentCaptor.forClass(
+                BroadcastReceiver.class);
+        when(mCarDeviceProvisionedController.getCurrentUser()).thenReturn(mUserInfo1.id);
+        mUserNameViewController.addUserNameView(mTextView);
+        assertEquals(mTextView.getText(), mUserInfo1.name);
+        verify(mBroadcastDispatcher).registerReceiver(broadcastReceiverArgumentCaptor.capture(),
+                any(), any(), any());
+
+        reset(mCarDeviceProvisionedController);
+        when(mCarDeviceProvisionedController.getCurrentUser()).thenReturn(mUserInfo2.id);
+        broadcastReceiverArgumentCaptor.getValue().onReceive(getContext(),
+                new Intent(Intent.ACTION_USER_INFO_CHANGED));
+
+        assertEquals(mTextView.getText(), mUserInfo2.name);
+        verify(mCarDeviceProvisionedController).getCurrentUser();
+    }
+}