diff --git a/packages/SystemUI/src/com/android/systemui/ConfigurationChangedReceiver.java b/packages/SystemUI/src/com/android/systemui/ConfigurationChangedReceiver.java
deleted file mode 100644
index 4fba640..0000000
--- a/packages/SystemUI/src/com/android/systemui/ConfigurationChangedReceiver.java
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * Copyright (C) 2017 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;
-
-import android.content.res.Configuration;
-
-public interface ConfigurationChangedReceiver {
-    void onConfigurationChanged(Configuration newConfiguration);
-}
diff --git a/packages/SystemUI/src/com/android/systemui/Dependency.java b/packages/SystemUI/src/com/android/systemui/Dependency.java
index a616484..c55b0d9 100644
--- a/packages/SystemUI/src/com/android/systemui/Dependency.java
+++ b/packages/SystemUI/src/com/android/systemui/Dependency.java
@@ -18,7 +18,6 @@
 import android.app.AlarmManager;
 import android.app.INotificationManager;
 import android.app.IWallpaperManager;
-import android.content.res.Configuration;
 import android.hardware.SensorPrivacyManager;
 import android.hardware.display.NightDisplayListener;
 import android.os.Handler;
@@ -555,15 +554,6 @@
                 .forEach(o -> ((Dumpable) o).dump(fd, pw, args));
     }
 
-    protected static void staticOnConfigurationChanged(Configuration newConfig) {
-        sDependency.onConfigurationChanged(newConfig);
-    }
-
-    protected synchronized void onConfigurationChanged(Configuration newConfig) {
-        mDependencies.values().stream().filter(obj -> obj instanceof ConfigurationChangedReceiver)
-                .forEach(o -> ((ConfigurationChangedReceiver) o).onConfigurationChanged(newConfig));
-    }
-
     protected final <T> T getDependency(Class<T> cls) {
         return getDependencyInner(cls);
     }
diff --git a/packages/SystemUI/src/com/android/systemui/SystemUIApplication.java b/packages/SystemUI/src/com/android/systemui/SystemUIApplication.java
index f0317b4..1b264e5 100644
--- a/packages/SystemUI/src/com/android/systemui/SystemUIApplication.java
+++ b/packages/SystemUI/src/com/android/systemui/SystemUIApplication.java
@@ -218,7 +218,11 @@
     @Override
     public void onConfigurationChanged(Configuration newConfig) {
         if (mServicesStarted) {
-            Dependency.staticOnConfigurationChanged(newConfig);
+            SystemUIFactory
+                    .getInstance()
+                    .getRootComponent()
+                    .getConfigurationController()
+                    .onConfigurationChanged(newConfig);
             int len = mServices.length;
             for (int i = 0; i < len; i++) {
                 if (mServices[i] != null) {
diff --git a/packages/SystemUI/src/com/android/systemui/assist/AssistManager.java b/packages/SystemUI/src/com/android/systemui/assist/AssistManager.java
index dd00eee..256c5d5 100644
--- a/packages/SystemUI/src/com/android/systemui/assist/AssistManager.java
+++ b/packages/SystemUI/src/com/android/systemui/assist/AssistManager.java
@@ -41,11 +41,11 @@
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
 import com.android.keyguard.KeyguardUpdateMonitor;
 import com.android.settingslib.applications.InterestingConfigChanges;
-import com.android.systemui.ConfigurationChangedReceiver;
 import com.android.systemui.R;
 import com.android.systemui.assist.ui.DefaultUiController;
 import com.android.systemui.recents.OverviewProxyService;
 import com.android.systemui.statusbar.CommandQueue;
+import com.android.systemui.statusbar.policy.ConfigurationController;
 import com.android.systemui.statusbar.policy.DeviceProvisionedController;
 
 import javax.inject.Inject;
@@ -55,7 +55,7 @@
  * Class to manage everything related to assist in SystemUI.
  */
 @Singleton
-public class AssistManager implements ConfigurationChangedReceiver {
+public class AssistManager {
 
     /**
      * Controls the UI for showing Assistant invocation progress.
@@ -154,6 +154,33 @@
         }
     };
 
+    private ConfigurationController.ConfigurationListener mConfigurationListener =
+            new ConfigurationController.ConfigurationListener() {
+                @Override
+                public void onConfigChanged(Configuration newConfig) {
+                    if (!mInterestingConfigChanges.applyNewConfig(mContext.getResources())) {
+                        return;
+                    }
+                    boolean visible = false;
+                    if (mView != null) {
+                        visible = mView.isShowing();
+                        mWindowManager.removeView(mView);
+                    }
+
+                    mView = (AssistOrbContainer) LayoutInflater.from(mContext).inflate(
+                            R.layout.assist_orb, null);
+                    mView.setVisibility(View.GONE);
+                    mView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
+                            | View.SYSTEM_UI_FLAG_LAYOUT_STABLE
+                            | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
+                    WindowManager.LayoutParams lp = getLayoutParams();
+                    mWindowManager.addView(mView, lp);
+                    if (visible) {
+                        mView.show(true /* show */, false /* animate */);
+                    }
+                }
+            };
+
     @Inject
     public AssistManager(
             DeviceProvisionedController controller,
@@ -162,7 +189,8 @@
             AssistHandleBehaviorController handleController,
             CommandQueue commandQueue,
             PhoneStateMonitor phoneStateMonitor,
-            OverviewProxyService overviewProxyService) {
+            OverviewProxyService overviewProxyService,
+            ConfigurationController configurationController) {
         mContext = context;
         mDeviceProvisionedController = controller;
         mCommandQueue = commandQueue;
@@ -172,11 +200,13 @@
         mPhoneStateMonitor = phoneStateMonitor;
         mHandleController = handleController;
 
+        configurationController.addCallback(mConfigurationListener);
+
         registerVoiceInteractionSessionListener();
         mInterestingConfigChanges = new InterestingConfigChanges(ActivityInfo.CONFIG_ORIENTATION
                 | ActivityInfo.CONFIG_LOCALE | ActivityInfo.CONFIG_UI_MODE
                 | ActivityInfo.CONFIG_SCREEN_LAYOUT | ActivityInfo.CONFIG_ASSETS_PATHS);
-        onConfigurationChanged(context.getResources().getConfiguration());
+        mConfigurationListener.onConfigChanged(context.getResources().getConfiguration());
         mShouldEnableOrb = !ActivityManager.isLowRamDeviceStatic();
 
         mUiController = new DefaultUiController(mContext);
@@ -225,29 +255,6 @@
                 });
     }
 
-    public void onConfigurationChanged(Configuration newConfiguration) {
-        if (!mInterestingConfigChanges.applyNewConfig(mContext.getResources())) {
-            return;
-        }
-        boolean visible = false;
-        if (mView != null) {
-            visible = mView.isShowing();
-            mWindowManager.removeView(mView);
-        }
-
-        mView = (AssistOrbContainer) LayoutInflater.from(mContext).inflate(
-                R.layout.assist_orb, null);
-        mView.setVisibility(View.GONE);
-        mView.setSystemUiVisibility(
-                View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_LAYOUT_STABLE
-                        | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
-        WindowManager.LayoutParams lp = getLayoutParams();
-        mWindowManager.addView(mView, lp);
-        if (visible) {
-            mView.show(true /* show */, false /* animate */);
-        }
-    }
-
     protected boolean shouldShowOrb() {
         return false;
     }
diff --git a/packages/SystemUI/src/com/android/systemui/dagger/SystemUIRootComponent.java b/packages/SystemUI/src/com/android/systemui/dagger/SystemUIRootComponent.java
index 83d956c..3f00f41 100644
--- a/packages/SystemUI/src/com/android/systemui/dagger/SystemUIRootComponent.java
+++ b/packages/SystemUI/src/com/android/systemui/dagger/SystemUIRootComponent.java
@@ -25,6 +25,7 @@
 import com.android.systemui.SystemUIFactory;
 import com.android.systemui.fragments.FragmentService;
 import com.android.systemui.statusbar.phone.StatusBar;
+import com.android.systemui.statusbar.policy.ConfigurationController;
 import com.android.systemui.util.InjectionInflationController;
 
 import javax.inject.Named;
@@ -50,6 +51,12 @@
      * Creates a ContextComponentHelper.
      */
     @Singleton
+    ConfigurationController getConfigurationController();
+
+    /**
+     * Creates a ContextComponentHelper.
+     */
+    @Singleton
     ContextComponentHelper getContextComponentHelper();
 
     /**
diff --git a/packages/SystemUI/src/com/android/systemui/fragments/FragmentService.java b/packages/SystemUI/src/com/android/systemui/fragments/FragmentService.java
index 1b4857e..ae20076 100644
--- a/packages/SystemUI/src/com/android/systemui/fragments/FragmentService.java
+++ b/packages/SystemUI/src/com/android/systemui/fragments/FragmentService.java
@@ -20,11 +20,11 @@
 import android.util.ArrayMap;
 import android.view.View;
 
-import com.android.systemui.ConfigurationChangedReceiver;
 import com.android.systemui.Dumpable;
 import com.android.systemui.dagger.SystemUIRootComponent;
 import com.android.systemui.qs.QSFragment;
 import com.android.systemui.statusbar.phone.NavigationBarFragment;
+import com.android.systemui.statusbar.policy.ConfigurationController;
 
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
@@ -41,7 +41,7 @@
  * Also dispatches the configuration changes to all current FragmentHostStates.
  */
 @Singleton
-public class FragmentService implements ConfigurationChangedReceiver, Dumpable {
+public class FragmentService implements Dumpable {
 
     private static final String TAG = "FragmentService";
 
@@ -50,10 +50,22 @@
     private final Handler mHandler = new Handler();
     private final FragmentCreator mFragmentCreator;
 
+    private ConfigurationController.ConfigurationListener mConfigurationListener =
+            new ConfigurationController.ConfigurationListener() {
+                @Override
+                public void onConfigChanged(Configuration newConfig) {
+                    for (FragmentHostState state : mHosts.values()) {
+                        state.sendConfigurationChange(newConfig);
+                    }
+                }
+            };
+
     @Inject
-    public FragmentService(SystemUIRootComponent rootComponent) {
+    public FragmentService(SystemUIRootComponent rootComponent,
+            ConfigurationController configurationController) {
         mFragmentCreator = rootComponent.createFragmentCreator();
         initInjectionMap();
+        configurationController.addCallback(mConfigurationListener);
     }
 
     ArrayMap<String, Method> getInjectionMap() {
@@ -97,13 +109,6 @@
     }
 
     @Override
-    public void onConfigurationChanged(Configuration newConfig) {
-        for (FragmentHostState state : mHosts.values()) {
-            state.sendConfigurationChange(newConfig);
-        }
-    }
-
-    @Override
     public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
         pw.println("Dumping fragments:");
         for (FragmentHostState state : mHosts.values()) {
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/ConfigurationControllerImpl.kt b/packages/SystemUI/src/com/android/systemui/statusbar/phone/ConfigurationControllerImpl.kt
index 424acfd..54ef623 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/ConfigurationControllerImpl.kt
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/ConfigurationControllerImpl.kt
@@ -18,14 +18,11 @@
 import android.content.pm.ActivityInfo
 import android.content.res.Configuration
 import android.os.LocaleList
-
-import com.android.systemui.ConfigurationChangedReceiver
 import com.android.systemui.statusbar.policy.ConfigurationController
 
 import java.util.ArrayList
 
-class ConfigurationControllerImpl(context: Context)
-    : ConfigurationController, ConfigurationChangedReceiver {
+class ConfigurationControllerImpl(context: Context) : ConfigurationController {
 
     private val listeners: MutableList<ConfigurationController.ConfigurationListener> = ArrayList()
     private val lastConfig = Configuration()
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/ConfigurationController.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/ConfigurationController.java
index 0e5c8c1..0a6cf7b 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/ConfigurationController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/ConfigurationController.java
@@ -24,7 +24,11 @@
  */
 public interface ConfigurationController extends CallbackController<ConfigurationListener> {
 
-    public void notifyThemeChanged();
+    /** Alert controller of a change in the configuration. */
+    void onConfigurationChanged(Configuration newConfiguration);
+
+    /** Alert controller of a change in between light and dark themes. */
+    void notifyThemeChanged();
 
     interface ConfigurationListener {
         default void onConfigChanged(Configuration newConfig) {}
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/NetworkControllerImpl.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/NetworkControllerImpl.java
index 12d3577..05a4b29 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/NetworkControllerImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/NetworkControllerImpl.java
@@ -60,7 +60,6 @@
 import com.android.internal.telephony.PhoneConstants;
 import com.android.internal.telephony.TelephonyIntents;
 import com.android.settingslib.net.DataUsageController;
-import com.android.systemui.ConfigurationChangedReceiver;
 import com.android.systemui.DemoMode;
 import com.android.systemui.Dumpable;
 import com.android.systemui.R;
@@ -87,8 +86,7 @@
 /** Platform implementation of the network controller. **/
 @Singleton
 public class NetworkControllerImpl extends BroadcastReceiver
-        implements NetworkController, DemoMode, DataUsageController.NetworkNameProvider,
-        ConfigurationChangedReceiver, Dumpable {
+        implements NetworkController, DemoMode, DataUsageController.NetworkNameProvider, Dumpable {
     // debug
     static final String TAG = "NetworkController";
     static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG);
@@ -167,6 +165,14 @@
     private boolean mUserSetup;
     private boolean mSimDetected;
 
+    private ConfigurationController.ConfigurationListener mConfigurationListener =
+            new ConfigurationController.ConfigurationListener() {
+                @Override
+                public void onConfigChanged(Configuration newConfig) {
+                    mConfig = Config.readConfig(mContext);
+                    mReceiverHandler.post(() -> handleConfigurationChanged());
+                }
+            };
     /**
      * Construct this controller object and register for updates.
      */
@@ -562,16 +568,6 @@
         }
     }
 
-    public void onConfigurationChanged(Configuration newConfig) {
-        mConfig = Config.readConfig(mContext);
-        mReceiverHandler.post(new Runnable() {
-            @Override
-            public void run() {
-                handleConfigurationChanged();
-            }
-        });
-    }
-
     @VisibleForTesting
     void handleConfigurationChanged() {
         updateMobileControllers();
diff --git a/packages/SystemUI/tests/src/com/android/systemui/DependencyTest.java b/packages/SystemUI/tests/src/com/android/systemui/DependencyTest.java
index c020514..bf2d4cd 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/DependencyTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/DependencyTest.java
@@ -37,8 +37,6 @@
 public class DependencyTest extends SysuiTestCase {
 
     public static final DependencyKey<Dumpable> DUMPABLE = new DependencyKey<>("dumpable");
-    public static final DependencyKey<ConfigurationChangedReceiver> CONFIGURATION_CHANGED_RECEIVER
-            = new DependencyKey<>("config_changed_receiver");
 
     @Test
     public void testClassDependency() {
@@ -66,15 +64,6 @@
     }
 
     @Test
-    public void testConfigurationChanged() {
-        ConfigurationChangedReceiver d = mock(ConfigurationChangedReceiver.class);
-        mDependency.injectTestDependency(CONFIGURATION_CHANGED_RECEIVER, d);
-        Dependency.get(CONFIGURATION_CHANGED_RECEIVER);
-        mDependency.onConfigurationChanged(null);
-        verify(d).onConfigurationChanged(eq(null));
-    }
-
-    @Test
     public void testInitDependency() {
         Dependency.clearDependencies();
         Dependency dependency = new Dependency();
diff --git a/packages/SystemUI/tests/src/com/android/systemui/utils/leaks/FakeConfigurationController.java b/packages/SystemUI/tests/src/com/android/systemui/utils/leaks/FakeConfigurationController.java
index 5ddf7a2..f5ccac3 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/utils/leaks/FakeConfigurationController.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/utils/leaks/FakeConfigurationController.java
@@ -14,6 +14,8 @@
 
 package com.android.systemui.utils.leaks;
 
+import android.content.res.Configuration;
+
 import com.android.systemui.statusbar.policy.ConfigurationController;
 
 public class FakeConfigurationController
@@ -25,6 +27,10 @@
     }
 
     @Override
+    public void onConfigurationChanged(Configuration newConfiguration) {
+    }
+
+    @Override
     public void notifyThemeChanged() {
     }
 }