Merge changes from topic "b190746471-status-bar-refactor" into sc-v2-dev am: 52ef77fab0

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15328766

Change-Id: I3badd8504ed30d74ed5640f1181ea403c9654434

packages/SystemUI/src/com/android/systemui/statusbar/phone/ShadeControllerImpl.java

@@ -118,10 +118,6 @@ public class ShadeControllerImpl implements ShadeController {
                     + " flags=" + flags);
         }
 
-        if ((flags & CommandQueue.FLAG_EXCLUDE_RECENTS_PANEL) == 0) {
-            getStatusBar().postHideRecentApps();
-        }
-
         // TODO(b/62444020): remove when this bug is fixed
         Log.v(TAG, "NotificationShadeWindow: " + getNotificationShadeWindowView()
                 + " canPanelBeCollapsed(): "

packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java

@@ -73,7 +73,6 @@ import android.net.Uri;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Looper;
-import android.os.Message;
 import android.os.PowerManager;
 import android.os.RemoteException;
 import android.os.ServiceManager;
@@ -143,6 +142,7 @@ import com.android.systemui.camera.CameraIntents;
 import com.android.systemui.charging.WirelessChargingAnimation;
 import com.android.systemui.classifier.FalsingCollector;
 import com.android.systemui.colorextraction.SysuiColorExtractor;
+import com.android.systemui.dagger.qualifiers.Main;
 import com.android.systemui.dagger.qualifiers.UiBackground;
 import com.android.systemui.demomode.DemoModeController;
 import com.android.systemui.emergency.EmergencyGesture;
@@ -227,6 +227,8 @@ import com.android.systemui.statusbar.policy.UserInfoControllerImpl;
 import com.android.systemui.statusbar.policy.UserSwitcherController;
 import com.android.systemui.tuner.TunerService;
 import com.android.systemui.unfold.UnfoldLightRevealOverlayAnimation;
+import com.android.systemui.util.concurrency.DelayableExecutor;
+import com.android.systemui.util.concurrency.MessageRouter;
 import com.android.systemui.volume.VolumeComponent;
 import com.android.systemui.wmshell.BubblesManager;
 import com.android.unfold.config.UnfoldTransitionConfig;
@@ -252,16 +254,9 @@ import dagger.Lazy;
 /** */
 public class StatusBar extends SystemUI implements
         ActivityStarter,
-        ConfigurationListener,
+        LifecycleOwner {
-        StatusBarStateController.StateListener,
-        LifecycleOwner, BatteryController.BatteryStateChangeCallback,
-        ActivityLaunchAnimator.Callback {
     public static final boolean MULTIUSER_DEBUG = false;
 
-    protected static final int MSG_HIDE_RECENT_APPS = 1020;
-    protected static final int MSG_PRELOAD_RECENT_APPS = 1022;
-    protected static final int MSG_CANCEL_PRELOAD_RECENT_APPS = 1023;
-    protected static final int MSG_TOGGLE_KEYBOARD_SHORTCUTS_MENU = 1026;
     protected static final int MSG_DISMISS_KEYBOARD_SHORTCUTS_MENU = 1027;
 
     // Should match the values in PhoneWindowManager
@@ -289,8 +284,6 @@ public class StatusBar extends SystemUI implements
 
     public static final String ACTION_FAKE_ARTWORK = "fake_artwork";
 
-    private static final int MSG_OPEN_NOTIFICATION_PANEL = 1000;
-    private static final int MSG_CLOSE_PANELS = 1001;
     private static final int MSG_OPEN_SETTINGS_PANEL = 1002;
     private static final int MSG_LAUNCH_TRANSITION_TIMEOUT = 1003;
     // 1020-1040 reserved for BaseStatusBar
@@ -370,13 +363,14 @@ public class StatusBar extends SystemUI implements
         mWereIconsJustHidden = justHidden;
     }
 
-    void resetHandlerMsg(int msg) {
+    void resendMessage(int msg) {
-        mHandler.removeMessages(msg);
+        mMessageRouter.cancelMessages(msg);
-        mHandler.sendEmptyMessage(msg);
+        mMessageRouter.sendMessage(msg);
     }
 
-    Handler getHandler() {
+    void resendMessage(Object msg) {
-        return mHandler;
+        mMessageRouter.cancelMessages(msg.getClass());
+        mMessageRouter.sendMessage(msg);
     }
 
     int getDisabled1() {
@@ -544,6 +538,7 @@ public class StatusBar extends SystemUI implements
     private final UnfoldTransitionConfig mUnfoldTransitionConfig;
     private final Lazy<UnfoldLightRevealOverlayAnimation> mUnfoldLightRevealOverlayAnimation;
     private final KeyguardUnlockAnimationController mKeyguardUnlockAnimationController;
+    private final MessageRouter mMessageRouter;
     private final WallpaperManager mWallpaperManager;
     private final UnlockedScreenOffAnimationController mUnlockedScreenOffAnimationController;
     private final TunerService mTunerService;
@@ -636,7 +631,8 @@ public class StatusBar extends SystemUI implements
         }
     }
 
-    protected final H mHandler = createHandler();
+    private Handler mMainHandler;
+    private final DelayableExecutor mMainExecutor;
 
     private int mInteractingWindows;
     private @TransitionMode int mStatusBarMode;
@@ -767,8 +763,6 @@ public class StatusBar extends SystemUI implements
                 }
             };
 
-    private final Handler mMainThreadHandler = new Handler(Looper.getMainLooper());
-
     private HeadsUpAppearanceController mHeadsUpAppearanceController;
     private ActivityLaunchAnimator mActivityLaunchAnimator;
     private NotificationLaunchAnimatorControllerProvider mNotificationAnimationProvider;
@@ -787,6 +781,174 @@ public class StatusBar extends SystemUI implements
     private final ColorExtractor.OnColorsChangedListener mOnColorsChangedListener =
             (extractor, which) -> updateTheme();
 
+    private final ConfigurationListener mConfigurationListener = new ConfigurationListener() {
+        @Override
+        public void onConfigChanged(Configuration newConfig) {
+            updateResources();
+            updateDisplaySize(); // populates mDisplayMetrics
+
+            if (DEBUG) {
+                Log.v(TAG, "configuration changed: " + mContext.getResources().getConfiguration());
+            }
+
+            mViewHierarchyManager.updateRowStates();
+            mScreenPinningRequest.onConfigurationChanged();
+        }
+
+        @Override
+        public void onDensityOrFontScaleChanged() {
+            // TODO: Remove this.
+            if (mBrightnessMirrorController != null) {
+                mBrightnessMirrorController.onDensityOrFontScaleChanged();
+            }
+            // TODO: Bring these out of StatusBar.
+            mUserInfoControllerImpl.onDensityOrFontScaleChanged();
+            mUserSwitcherController.onDensityOrFontScaleChanged();
+            mNotificationIconAreaController.onDensityOrFontScaleChanged(mContext);
+            mHeadsUpManager.onDensityOrFontScaleChanged();
+        }
+
+        @Override
+        public void onThemeChanged() {
+            if (mStatusBarKeyguardViewManager != null) {
+                mStatusBarKeyguardViewManager.onThemeChanged();
+            }
+            if (mAmbientIndicationContainer instanceof AutoReinflateContainer) {
+                ((AutoReinflateContainer) mAmbientIndicationContainer).inflateLayout();
+            }
+            mNotificationIconAreaController.onThemeChanged();
+        }
+
+        @Override
+        public void onOverlayChanged() {
+            if (mBrightnessMirrorController != null) {
+                mBrightnessMirrorController.onOverlayChanged();
+            }
+            // We need the new R.id.keyguard_indication_area before recreating
+            // mKeyguardIndicationController
+            mNotificationPanelViewController.onThemeChanged();
+            onThemeChanged();
+        }
+
+        @Override
+        public void onUiModeChanged() {
+            if (mBrightnessMirrorController != null) {
+                mBrightnessMirrorController.onUiModeChanged();
+            }
+        }
+    };
+
+    private StatusBarStateController.StateListener mStateListener =
+            new StatusBarStateController.StateListener() {
+        @Override
+        public void onStatePreChange(int oldState, int newState) {
+            // If we're visible and switched to SHADE_LOCKED (the user dragged
+            // down on the lockscreen), clear notification LED, vibration,
+            // ringing.
+            // Other transitions are covered in handleVisibleToUserChanged().
+            if (mVisible && (newState == StatusBarState.SHADE_LOCKED
+                    || mStatusBarStateController.goingToFullShade())) {
+                clearNotificationEffects();
+            }
+            if (newState == StatusBarState.KEYGUARD) {
+                mRemoteInputManager.onPanelCollapsed();
+                maybeEscalateHeadsUp();
+            }
+        }
+
+        @Override
+        public void onStateChanged(int newState) {
+            mState = newState;
+            updateReportRejectedTouchVisibility();
+            mDozeServiceHost.updateDozing();
+            updateTheme();
+            mNavigationBarController.touchAutoDim(mDisplayId);
+            Trace.beginSection("StatusBar#updateKeyguardState");
+            if (mState == StatusBarState.KEYGUARD && mStatusBarView != null) {
+                mStatusBarView.removePendingHideExpandedRunnables();
+            }
+            updateDozingState();
+            checkBarModes();
+            updateScrimController();
+            mPresenter.updateMediaMetaData(false, mState != StatusBarState.KEYGUARD);
+            updateKeyguardState();
+            Trace.endSection();
+        }
+
+        @Override
+        public void onDozeAmountChanged(float linear, float eased) {
+            if (mFeatureFlags.useNewLockscreenAnimations()
+                    && !(mLightRevealScrim.getRevealEffect() instanceof CircleReveal)) {
+                mLightRevealScrim.setRevealAmount(1f - linear);
+            }
+        }
+
+        @Override
+        public void onDozingChanged(boolean isDozing) {
+            Trace.beginSection("StatusBar#updateDozing");
+            mDozing = isDozing;
+
+            // Collapse the notification panel if open
+            boolean dozingAnimated = mDozeServiceHost.getDozingRequested()
+                    && mDozeParameters.shouldControlScreenOff();
+            mNotificationPanelViewController.resetViews(dozingAnimated);
+
+            updateQsExpansionEnabled();
+            mKeyguardViewMediator.setDozing(mDozing);
+
+            mNotificationsController.requestNotificationUpdate("onDozingChanged");
+            updateDozingState();
+            mDozeServiceHost.updateDozing();
+            updateScrimController();
+            updateReportRejectedTouchVisibility();
+            Trace.endSection();
+        }
+    };
+
+    private final BatteryController.BatteryStateChangeCallback mBatteryStateChangeCallback =
+            new BatteryController.BatteryStateChangeCallback() {
+                @Override
+                public void onPowerSaveChanged(boolean isPowerSave) {
+                    mMainExecutor.execute(mCheckBarModes);
+                    if (mDozeServiceHost != null) {
+                        mDozeServiceHost.firePowerSaveChanged(isPowerSave);
+                    }
+                }
+            };
+
+    private final ActivityLaunchAnimator.Callback mKeyguardHandler =
+            new ActivityLaunchAnimator.Callback() {
+        @Override
+        public boolean isOnKeyguard() {
+            return mKeyguardStateController.isShowing();
+        }
+
+        @Override
+        public void hideKeyguardWithAnimation(IRemoteAnimationRunner runner) {
+            // We post to the main thread for 2 reasons:
+            //   1. KeyguardViewMediator is not thread-safe.
+            //   2. To ensure that ViewMediatorCallback#keyguardDonePending is called before
+            //      ViewMediatorCallback#readyForKeyguardDone. The wrong order could occur when
+            //      doing dismissKeyguardThenExecute { hideKeyguardWithAnimation(runner) }.
+            mMainExecutor.execute(() -> mKeyguardViewMediator.hideWithAnimation(runner));
+        }
+
+        @Override
+        public void setBlursDisabledForAppLaunch(boolean disabled) {
+            mKeyguardViewMediator.setBlursDisabledForAppLaunch(disabled);
+        }
+
+        @Override
+        public int getBackgroundColor(TaskInfo task) {
+            if (!mStartingSurfaceOptional.isPresent()) {
+                Log.w(TAG, "No starting surface, defaulting to SystemBGColor");
+                return SplashscreenContentDrawer.getSystemBGColor();
+            }
+
+            return mStartingSurfaceOptional.get().getBackgroundColor(task);
+        }
+    };
+
     /**
      * Public constructor for StatusBar.
      *
@@ -881,6 +1043,9 @@ public class StatusBar extends SystemUI implements
             LockscreenShadeTransitionController lockscreenShadeTransitionController,
             FeatureFlags featureFlags,
             KeyguardUnlockAnimationController keyguardUnlockAnimationController,
+            @Main Handler mainHandler,
+            @Main DelayableExecutor delayableExecutor,
+            @Main MessageRouter messageRouter,
             WallpaperManager wallpaperManager,
             UnlockedScreenOffAnimationController unlockedScreenOffAnimationController,
             Optional<StartingSurface> startingSurfaceOptional,
@@ -968,6 +1133,9 @@ public class StatusBar extends SystemUI implements
         mStatusBarIconController = statusBarIconController;
         mFeatureFlags = featureFlags;
         mKeyguardUnlockAnimationController = keyguardUnlockAnimationController;
+        mMainHandler = mainHandler;
+        mMainExecutor = delayableExecutor;
+        mMessageRouter = messageRouter;
         mWallpaperManager = wallpaperManager;
         mUnlockedScreenOffAnimationController = unlockedScreenOffAnimationController;
         mTunerService = tunerService;
@@ -985,7 +1153,18 @@ public class StatusBar extends SystemUI implements
                 });
 
         mActivityIntentHelper = new ActivityIntentHelper(mContext);
+
+        // TODO(b/190746471): Find a better home for this.
         DateTimeView.setReceiverHandler(timeTickHandler);
+
+        mMessageRouter.subscribeTo(KeyboardShortcutsData.class,
+                data -> toggleKeyboardShortcuts(data.mDeviceId));
+        mMessageRouter.subscribeTo(MSG_DISMISS_KEYBOARD_SHORTCUTS_MENU,
+                id -> dismissKeyboardShortcuts());
+        mMessageRouter.subscribeTo(AnimateExpandSettingsPanelData.class,
+                data -> mCommandQueueCallbacks.animateExpandSettingsPanel(data.mSubpanel));
+        mMessageRouter.subscribeTo(MSG_LAUNCH_TRANSITION_TIMEOUT,
+                id -> onLaunchTransitionTimeout());
     }
 
     @Override
@@ -1003,7 +1182,7 @@ public class StatusBar extends SystemUI implements
         mKeyguardIndicationController.init();
 
         mColorExtractor.addOnColorsChangedListener(mOnColorsChangedListener);
-        mStatusBarStateController.addCallback(this,
+        mStatusBarStateController.addCallback(mStateListener,
                 SysuiStatusBarStateController.RANK_STATUS_BAR);
 
         mWindowManager = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE);
@@ -1117,9 +1296,9 @@ public class StatusBar extends SystemUI implements
                 mAmbientIndicationContainer);
         mDozeParameters.addCallback(this::updateLightRevealScrimVisibility);
 
-        mConfigurationController.addCallback(this);
+        mConfigurationController.addCallback(mConfigurationListener);
 
-        mBatteryController.observe(mLifecycle, this);
+        mBatteryController.observe(mLifecycle, mBatteryStateChangeCallback);
         mLifecycle.setCurrentState(RESUMED);
 
         // set the initial view visibility
@@ -1140,7 +1319,7 @@ public class StatusBar extends SystemUI implements
 
                     @Override
                     public void onPluginConnected(OverlayPlugin plugin, Context pluginContext) {
-                        mMainThreadHandler.post(
+                        mMainExecutor.execute(
                                 () -> plugin.setup(getNotificationShadeWindowView(),
                                         getNavigationBarView(),
                                         new Callback(plugin), mDozeParameters));
@@ -1148,7 +1327,7 @@ public class StatusBar extends SystemUI implements
 
                     @Override
                     public void onPluginDisconnected(OverlayPlugin plugin) {
-                        mMainThreadHandler.post(() -> {
+                        mMainExecutor.execute(() -> {
                             mOverlays.remove(plugin);
                             mNotificationShadeWindowController
                                     .setForcePluginOpen(mOverlays.size() != 0, this);
@@ -1169,7 +1348,7 @@ public class StatusBar extends SystemUI implements
                             } else {
                                 mOverlays.remove(mPlugin);
                             }
-                            mMainThreadHandler.post(() -> {
+                            mMainExecutor.execute(() -> {
                                 mNotificationShadeWindowController
                                         .setStateListener(b -> mOverlays.forEach(
                                                 o -> o.setCollapseDesired(b)));
@@ -1231,7 +1410,7 @@ public class StatusBar extends SystemUI implements
                             mConfigurationController,
                             mTunerService,
                             mBroadcastDispatcher,
-                            mMainThreadHandler,
+                            mMainHandler,
                             mContext.getContentResolver()
                     );
                     mBatteryMeterViewController.init();
@@ -1488,19 +1667,6 @@ public class StatusBar extends SystemUI implements
         return mLifecycle;
     }
 
-    @Override
-    public void onPowerSaveChanged(boolean isPowerSave) {
-        mHandler.post(mCheckBarModes);
-        if (mDozeServiceHost != null) {
-            mDozeServiceHost.firePowerSaveChanged(isPowerSave);
-        }
-    }
-
-    @Override
-    public void onBatteryLevelChanged(int level, boolean pluggedIn, boolean charging) {
-        // noop
-    }
-
     @VisibleForTesting
     protected void registerBroadcastReceiver() {
         IntentFilter filter = new IntentFilter();
@@ -1516,7 +1682,7 @@ public class StatusBar extends SystemUI implements
 
     private void setUpPresenter() {
         // Set up the initial notification state.
-        mActivityLaunchAnimator = new ActivityLaunchAnimator(this, mContext);
+        mActivityLaunchAnimator = new ActivityLaunchAnimator(mKeyguardHandler, mContext);
         mNotificationAnimationProvider = new NotificationLaunchAnimatorControllerProvider(
                 mNotificationShadeWindowViewController,
                 mStackScrollerController.getNotificationListContainer(),
@@ -1632,48 +1798,6 @@ public class StatusBar extends SystemUI implements
                 .getNotificationShelfController(mStackScroller);
     }
 
-    @Override
-    public void onDensityOrFontScaleChanged() {
-        // TODO: Remove this.
-        if (mBrightnessMirrorController != null) {
-            mBrightnessMirrorController.onDensityOrFontScaleChanged();
-        }
-        // TODO: Bring these out of StatusBar.
-        mUserInfoControllerImpl.onDensityOrFontScaleChanged();
-        mUserSwitcherController.onDensityOrFontScaleChanged();
-        mNotificationIconAreaController.onDensityOrFontScaleChanged(mContext);
-        mHeadsUpManager.onDensityOrFontScaleChanged();
-    }
-
-    @Override
-    public void onThemeChanged() {
-        if (mStatusBarKeyguardViewManager != null) {
-            mStatusBarKeyguardViewManager.onThemeChanged();
-        }
-        if (mAmbientIndicationContainer instanceof AutoReinflateContainer) {
-            ((AutoReinflateContainer) mAmbientIndicationContainer).inflateLayout();
-        }
-        mNotificationIconAreaController.onThemeChanged();
-    }
-
-    @Override
-    public void onOverlayChanged() {
-        if (mBrightnessMirrorController != null) {
-            mBrightnessMirrorController.onOverlayChanged();
-        }
-        // We need the new R.id.keyguard_indication_area before recreating
-        // mKeyguardIndicationController
-        mNotificationPanelViewController.onThemeChanged();
-        onThemeChanged();
-    }
-
-    @Override
-    public void onUiModeChanged() {
-        if (mBrightnessMirrorController != null) {
-            mBrightnessMirrorController.onUiModeChanged();
-        }
-    }
-
     private void inflateStatusBarWindow() {
         mNotificationShadeWindowView = mSuperStatusBarViewFactory.getNotificationShadeWindowView();
         StatusBarComponent statusBarComponent = mStatusBarComponentBuilder.get()
@@ -1859,10 +1983,6 @@ public class StatusBar extends SystemUI implements
         return (mDisabled1 & StatusBarManager.DISABLE_NOTIFICATION_ALERTS) != 0;
     }
 
-    protected H createHandler() {
-        return new StatusBar.H();
-    }
-
     @Override
     public void startActivity(Intent intent, boolean onlyProvisioned, boolean dismissShade,
             int flags) {
@@ -1997,7 +2117,7 @@ public class StatusBar extends SystemUI implements
                 // We're delaying the showing, since most of the time the fullscreen app will
                 // hide the icons again and we don't want them to fade in and out immediately again.
                 mWereIconsJustHidden = true;
-                mHandler.postDelayed(() -> {
+                mMainExecutor.executeDelayed(() -> {
                     mWereIconsJustHidden = false;
                     mCommandQueue.recomputeDisableFlags(mDisplayId, true);
                 }, 500);
@@ -2057,36 +2177,6 @@ public class StatusBar extends SystemUI implements
         return isActivityIntent && KeyguardService.sEnableRemoteKeyguardGoingAwayAnimation;
     }
 
-    @Override
-    public boolean isOnKeyguard() {
-        return mKeyguardStateController.isShowing();
-    }
-
-    @Override
-    public void hideKeyguardWithAnimation(IRemoteAnimationRunner runner) {
-        // We post to the main thread for 2 reasons:
-        //   1. KeyguardViewMediator is not thread-safe.
-        //   2. To ensure that ViewMediatorCallback#keyguardDonePending is called before
-        //      ViewMediatorCallback#readyForKeyguardDone. The wrong order could occur when doing
-        //      dismissKeyguardThenExecute { hideKeyguardWithAnimation(runner) }.
-        mMainThreadHandler.post(() -> mKeyguardViewMediator.hideWithAnimation(runner));
-    }
-
-    @Override
-    public void setBlursDisabledForAppLaunch(boolean disabled) {
-        mKeyguardViewMediator.setBlursDisabledForAppLaunch(disabled);
-    }
-
-    @Override
-    public int getBackgroundColor(TaskInfo task) {
-        if (!mStartingSurfaceOptional.isPresent()) {
-            Log.w(TAG, "No starting surface, defaulting to SystemBGColor");
-            return SplashscreenContentDrawer.getSystemBGColor();
-        }
-
-        return mStartingSurfaceOptional.get().getBackgroundColor(task);
-    }
-
     public boolean isDeviceInVrMode() {
         return mPresenter.isDeviceInVrMode();
     }
@@ -2100,37 +2190,19 @@ public class StatusBar extends SystemUI implements
         mState = state;
     }
 
-    /**
+    static class KeyboardShortcutsData {
-     * All changes to the status bar and notifications funnel through here and are batched.
+        final int mDeviceId;
-     */
+
-    protected class H extends Handler {
+        KeyboardShortcutsData(int deviceId) {
-        H() {
+            mDeviceId = deviceId;
-            super(Looper.myLooper());
+        }
     }
 
-        @Override
+    static class AnimateExpandSettingsPanelData {
-        public void handleMessage(Message m) {
+        final String mSubpanel;
-            switch (m.what) {
+
-                case MSG_TOGGLE_KEYBOARD_SHORTCUTS_MENU:
+        AnimateExpandSettingsPanelData(String subpanel) {
-                    toggleKeyboardShortcuts(m.arg1);
+            mSubpanel = subpanel;
-                    break;
-                case MSG_DISMISS_KEYBOARD_SHORTCUTS_MENU:
-                    dismissKeyboardShortcuts();
-                    break;
-                // End old BaseStatusBar.H handling.
-                case MSG_OPEN_NOTIFICATION_PANEL:
-                    mCommandQueueCallbacks.animateExpandNotificationsPanel();
-                    break;
-                case MSG_OPEN_SETTINGS_PANEL:
-                    mCommandQueueCallbacks.animateExpandSettingsPanel((String) m.obj);
-                    break;
-                case MSG_CLOSE_PANELS:
-                    mShadeController.animateCollapsePanels();
-                    break;
-                case MSG_LAUNCH_TRANSITION_TIMEOUT:
-                    onLaunchTransitionTimeout();
-                    break;
-            }
         }
     }
 
@@ -2172,27 +2244,17 @@ public class StatusBar extends SystemUI implements
     }
 
     public void postAnimateCollapsePanels() {
-        mHandler.post(mShadeController::animateCollapsePanels);
+        mMainExecutor.execute(mShadeController::animateCollapsePanels);
     }
 
     public void postAnimateForceCollapsePanels() {
-        mHandler.post(() -> mShadeController.animateCollapsePanels(CommandQueue.FLAG_EXCLUDE_NONE,
+        mMainExecutor.execute(
+                () -> mShadeController.animateCollapsePanels(CommandQueue.FLAG_EXCLUDE_NONE,
                 true /* force */));
     }
 
     public void postAnimateOpenPanels() {
-        mHandler.sendEmptyMessage(MSG_OPEN_SETTINGS_PANEL);
+        mMessageRouter.sendMessage(MSG_OPEN_SETTINGS_PANEL);
-    }
-
-    /**
-     * Called by {@link ShadeController} when it calls
-     * {@link ShadeController#animateCollapsePanels(int, boolean, boolean, float)}.
-     */
-    void postHideRecentApps() {
-        if (!mHandler.hasMessages(MSG_HIDE_RECENT_APPS)) {
-            mHandler.removeMessages(MSG_HIDE_RECENT_APPS);
-            mHandler.sendEmptyMessage(MSG_HIDE_RECENT_APPS);
-        }
     }
 
     public boolean isExpandedVisible() {
@@ -2761,7 +2823,7 @@ public class StatusBar extends SystemUI implements
                             && mStatusBarKeyguardViewManager.isOccluded()) {
                         mStatusBarKeyguardViewManager.addAfterKeyguardGoneRunnable(runnable);
                     } else {
-                        mHandler.post(runnable);
+                        mMainExecutor.execute(runnable);
                     }
                 }
                 if (dismissShade) {
@@ -2773,7 +2835,7 @@ public class StatusBar extends SystemUI implements
 
                         // Do it after DismissAction has been processed to conserve the needed
                         // ordering.
-                        mHandler.post(mShadeController::runPostCollapseRunnables);
+                        mMainExecutor.execute(mShadeController::runPostCollapseRunnables);
                     }
                 } else if (StatusBar.this.isInLaunchTransition()
                         && mNotificationPanelViewController.isLaunchTransitionFinished()) {
@@ -2782,7 +2844,7 @@ public class StatusBar extends SystemUI implements
                     // finished,
                     // so nobody will call readyForKeyguardDone anymore. Post it such that
                     // keyguardDonePending gets called first.
-                    mHandler.post(mStatusBarKeyguardViewManager::readyForKeyguardDone);
+                    mMainExecutor.execute(mStatusBarKeyguardViewManager::readyForKeyguardDone);
                 }
                 return deferred;
             }
@@ -2821,8 +2883,8 @@ public class StatusBar extends SystemUI implements
                     mNotificationShadeWindowController.setNotTouchable(false);
                 }
                 if (mBubblesOptional.isPresent() && mBubblesOptional.get().isStackExpanded()) {
-                    // Post to main thread handler, since updating the UI.
+                    // Post to main thread, since updating the UI.
-                    mMainThreadHandler.post(() -> mBubblesOptional.get().collapseStack());
+                    mMainExecutor.execute(() -> mBubblesOptional.get().collapseStack());
                 }
                 finishBarAnimations();
                 resetUserExpandedStates();
@@ -2883,20 +2945,6 @@ public class StatusBar extends SystemUI implements
             action.onDismiss();
         }
     }
-
-    @Override
-    public void onConfigChanged(Configuration newConfig) {
-        updateResources();
-        updateDisplaySize(); // populates mDisplayMetrics
-
-        if (DEBUG) {
-            Log.v(TAG, "configuration changed: " + mContext.getResources().getConfiguration());
-        }
-
-        mViewHierarchyManager.updateRowStates();
-        mScreenPinningRequest.onConfigurationChanged();
-    }
-
     /**
      * Notify the shade controller that the current user changed
      *
@@ -3046,10 +3094,10 @@ public class StatusBar extends SystemUI implements
 
     @Override
     public void postQSRunnableDismissingKeyguard(final Runnable runnable) {
-        mHandler.post(() -> {
+        mMainExecutor.execute(() -> {
             mStatusBarStateController.setLeaveOpenOnKeyguardHide(true);
-            executeRunnableDismissingKeyguard(() -> mHandler.post(runnable), null, false, false,
+            executeRunnableDismissingKeyguard(
-                    false);
+                    () -> mMainExecutor.execute(runnable), null, false, false, false);
         });
     }
 
@@ -3061,7 +3109,7 @@ public class StatusBar extends SystemUI implements
     @Override
     public void postStartActivityDismissingKeyguard(final PendingIntent intent,
             @Nullable ActivityLaunchAnimator.Controller animationController) {
-        mHandler.post(() -> startPendingIntentDismissingKeyguard(intent,
+        mMainExecutor.execute(() -> startPendingIntentDismissingKeyguard(intent,
                 null /* intentSentUiThreadCallback */, animationController));
     }
 
@@ -3073,7 +3121,7 @@ public class StatusBar extends SystemUI implements
     @Override
     public void postStartActivityDismissingKeyguard(Intent intent, int delay,
             @Nullable ActivityLaunchAnimator.Controller animationController) {
-        mHandler.postDelayed(
+        mMainExecutor.executeDelayed(
                 () ->
                         startActivityDismissingKeyguard(intent, true /* onlyProvisioned */,
                                 true /* dismissShade */,
@@ -3143,7 +3191,7 @@ public class StatusBar extends SystemUI implements
             mNotificationPanelViewController.cancelAnimation();
             onLaunchTransitionFadingEnded();
         }
-        mHandler.removeMessages(MSG_LAUNCH_TRANSITION_TIMEOUT);
+        mMessageRouter.cancelMessages(MSG_LAUNCH_TRANSITION_TIMEOUT);
         if (mUserSwitcherController != null && mUserSwitcherController.useFullscreenUserSwitcher()) {
             mStatusBarStateController.setState(StatusBarState.FULLSCREEN_USER_SWITCHER);
         } else if (!mPulseExpansionHandler.isWakingToShadeLocked()) {
@@ -3184,7 +3232,7 @@ public class StatusBar extends SystemUI implements
      */
     public void fadeKeyguardAfterLaunchTransition(final Runnable beforeFading,
             Runnable endRunnable) {
-        mHandler.removeMessages(MSG_LAUNCH_TRANSITION_TIMEOUT);
+        mMessageRouter.cancelMessages(MSG_LAUNCH_TRANSITION_TIMEOUT);
         mLaunchTransitionEndRunnable = endRunnable;
         Runnable hideRunnable = () -> {
             mKeyguardStateController.setLaunchTransitionFadingAway(true);
@@ -3233,8 +3281,8 @@ public class StatusBar extends SystemUI implements
      * because the launched app crashed or something else went wrong.
      */
     public void startLaunchTransitionTimeout() {
-        mHandler.sendEmptyMessageDelayed(MSG_LAUNCH_TRANSITION_TIMEOUT,
+        mMessageRouter.sendMessageDelayed(
-                LAUNCH_TRANSITION_TIMEOUT_MS);
+                MSG_LAUNCH_TRANSITION_TIMEOUT, LAUNCH_TRANSITION_TIMEOUT_MS);
     }
 
     private void onLaunchTransitionTimeout() {
@@ -3289,7 +3337,7 @@ public class StatusBar extends SystemUI implements
         if (mQSPanelController != null) {
             mQSPanelController.refreshAllTiles();
         }
-        mHandler.removeMessages(MSG_LAUNCH_TRANSITION_TIMEOUT);
+        mMessageRouter.cancelMessages(MSG_LAUNCH_TRANSITION_TIMEOUT);
         releaseGestureWakeLock();
         mNotificationPanelViewController.onAffordanceLaunchEnded();
         mNotificationPanelViewController.cancelAnimation();
@@ -3517,69 +3565,7 @@ public class StatusBar extends SystemUI implements
         mNotificationPanelViewController.collapseWithDuration(duration);
     }
 
-    @Override
-    public void onStatePreChange(int oldState, int newState) {
-        // If we're visible and switched to SHADE_LOCKED (the user dragged
-        // down on the lockscreen), clear notification LED, vibration,
-        // ringing.
-        // Other transitions are covered in handleVisibleToUserChanged().
-        if (mVisible && (newState == StatusBarState.SHADE_LOCKED
-                || mStatusBarStateController.goingToFullShade())) {
-            clearNotificationEffects();
-        }
-        if (newState == StatusBarState.KEYGUARD) {
-            mRemoteInputManager.onPanelCollapsed();
-            maybeEscalateHeadsUp();
-        }
-    }
 
-    @Override
-    public void onStateChanged(int newState) {
-        mState = newState;
-        updateReportRejectedTouchVisibility();
-        mDozeServiceHost.updateDozing();
-        updateTheme();
-        mNavigationBarController.touchAutoDim(mDisplayId);
-        Trace.beginSection("StatusBar#updateKeyguardState");
-        if (mState == StatusBarState.KEYGUARD && mStatusBarView != null) {
-            mStatusBarView.removePendingHideExpandedRunnables();
-        }
-        updateDozingState();
-        checkBarModes();
-        updateScrimController();
-        mPresenter.updateMediaMetaData(false, mState != StatusBarState.KEYGUARD);
-        updateKeyguardState();
-        Trace.endSection();
-    }
-
-    @Override
-    public void onDozeAmountChanged(float linear, float eased) {
-        if (mFeatureFlags.useNewLockscreenAnimations()
-                && !(mLightRevealScrim.getRevealEffect() instanceof CircleReveal)) {
-            mLightRevealScrim.setRevealAmount(1f - linear);
-        }
-    }
-
-    @Override
-    public void onDozingChanged(boolean isDozing) {
-        Trace.beginSection("StatusBar#updateDozing");
-        mDozing = isDozing;
-
-        // Collapse the notification panel if open
-        boolean dozingAnimated = mDozeServiceHost.getDozingRequested()
-                && mDozeParameters.shouldControlScreenOff();
-        mNotificationPanelViewController.resetViews(dozingAnimated);
-
-        updateQsExpansionEnabled();
-        mKeyguardViewMediator.setDozing(mDozing);
-
-        mNotificationsController.requestNotificationUpdate("onDozingChanged");
-        updateDozingState();
-        mDozeServiceHost.updateDozing();
-        updateScrimController();
-        updateReportRejectedTouchVisibility();
-        Trace.endSection();
-    }
 
     /**
      * Updates the light reveal effect to reflect the reason we're waking or sleeping (for example,
@@ -3721,7 +3707,7 @@ public class StatusBar extends SystemUI implements
 
                 // This gets executed before we will show Keyguard, so post it in order that the state
                 // is correct.
-                mHandler.post(() -> mCommandQueueCallbacks.onCameraLaunchGestureDetected(
+                mMainExecutor.execute(() -> mCommandQueueCallbacks.onCameraLaunchGestureDetected(
                         mLastCameraLaunchSource));
             }
 
@@ -3730,7 +3716,7 @@ public class StatusBar extends SystemUI implements
 
                 // This gets executed before we will show Keyguard, so post it in order that the
                 // state is correct.
-                mHandler.post(
+                mMainExecutor.execute(
                         () -> mCommandQueueCallbacks.onEmergencyActionLaunchGestureDetected());
             }
             updateIsKeyguard();
@@ -4199,7 +4185,7 @@ public class StatusBar extends SystemUI implements
     }
 
     private void postOnUiThread(Runnable runnable) {
-        mMainThreadHandler.post(runnable);
+        mMainExecutor.execute(runnable);
     }
 
     /**

packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarCommandQueueCallbacks.java

@@ -255,19 +255,9 @@ public class StatusBarCommandQueueCallbacks implements CommandQueue.Callbacks {
         }
     }
 
-    @Override
-    public void preloadRecentApps() {
-        mStatusBar.resetHandlerMsg(StatusBar.MSG_PRELOAD_RECENT_APPS);
-    }
-
-    @Override
-    public void cancelPreloadRecentApps() {
-        mStatusBar.resetHandlerMsg(StatusBar.MSG_CANCEL_PRELOAD_RECENT_APPS);
-    }
-
     @Override
     public void dismissKeyboardShortcutsMenu() {
-        mStatusBar.resetHandlerMsg(StatusBar.MSG_DISMISS_KEYBOARD_SHORTCUTS_MENU);
+        mStatusBar.resendMessage(StatusBar.MSG_DISMISS_KEYBOARD_SHORTCUTS_MENU);
     }
     /**
      * State is one or more of the DISABLE constants from StatusBarManager.
@@ -330,13 +320,6 @@ public class StatusBarCommandQueueCallbacks implements CommandQueue.Callbacks {
             }
         }
 
-        if ((diff1 & StatusBarManager.DISABLE_RECENT) != 0) {
-            if ((state1 & StatusBarManager.DISABLE_RECENT) != 0) {
-                // close recents if it's visible
-                mStatusBar.resetHandlerMsg(StatusBar.MSG_HIDE_RECENT_APPS);
-            }
-        }
-
         if ((diff1 & StatusBarManager.DISABLE_NOTIFICATION_ALERTS) != 0) {
             if (mStatusBar.areNotificationAlertsDisabled()) {
                 mHeadsUpManager.releaseAllImmediately();
@@ -544,9 +527,7 @@ public class StatusBarCommandQueueCallbacks implements CommandQueue.Callbacks {
 
     @Override
     public void toggleKeyboardShortcutsMenu(int deviceId) {
-        int msg = StatusBar.MSG_TOGGLE_KEYBOARD_SHORTCUTS_MENU;
+        mStatusBar.resendMessage(new StatusBar.KeyboardShortcutsData(deviceId));
-        mStatusBar.getHandler().removeMessages(msg);
-        mStatusBar.getHandler().obtainMessage(msg, deviceId, 0).sendToTarget();
     }
 
     @Override

packages/SystemUI/src/com/android/systemui/statusbar/phone/dagger/StatusBarPhoneModule.java

@@ -33,6 +33,7 @@ import com.android.systemui.broadcast.BroadcastDispatcher;
 import com.android.systemui.classifier.FalsingCollector;
 import com.android.systemui.colorextraction.SysuiColorExtractor;
 import com.android.systemui.dagger.SysUISingleton;
+import com.android.systemui.dagger.qualifiers.Main;
 import com.android.systemui.dagger.qualifiers.UiBackground;
 import com.android.systemui.demomode.DemoModeController;
 import com.android.systemui.flags.FeatureFlags;
@@ -103,6 +104,8 @@ import com.android.systemui.statusbar.policy.UserInfoControllerImpl;
 import com.android.systemui.statusbar.policy.UserSwitcherController;
 import com.android.systemui.tuner.TunerService;
 import com.android.systemui.unfold.UnfoldLightRevealOverlayAnimation;
+import com.android.systemui.util.concurrency.DelayableExecutor;
+import com.android.systemui.util.concurrency.MessageRouter;
 import com.android.systemui.volume.VolumeComponent;
 import com.android.systemui.wmshell.BubblesManager;
 import com.android.unfold.config.UnfoldTransitionConfig;
@@ -217,6 +220,9 @@ public interface StatusBarPhoneModule {
             LockscreenShadeTransitionController transitionController,
             FeatureFlags featureFlags,
             KeyguardUnlockAnimationController keyguardUnlockAnimationController,
+            @Main Handler mainHandler,
+            @Main DelayableExecutor delayableExecutor,
+            @Main MessageRouter messageRouter,
             WallpaperManager wallpaperManager,
             UnlockedScreenOffAnimationController unlockedScreenOffAnimationController,
             Optional<StartingSurface> startingSurfaceOptional,
@@ -307,6 +313,9 @@ public interface StatusBarPhoneModule {
                 transitionController,
                 featureFlags,
                 keyguardUnlockAnimationController,
+                mainHandler,
+                delayableExecutor,
+                messageRouter,
                 wallpaperManager,
                 unlockedScreenOffAnimationController,
                 startingSurfaceOptional,

packages/SystemUI/tests/src/com/android/systemui/statusbar/phone/StatusBarTest.java

@@ -141,6 +141,7 @@ import com.android.systemui.statusbar.policy.UserSwitcherController;
 import com.android.systemui.tuner.TunerService;
 import com.android.systemui.unfold.UnfoldLightRevealOverlayAnimation;
 import com.android.systemui.util.concurrency.FakeExecutor;
+import com.android.systemui.util.concurrency.MessageRouterImpl;
 import com.android.systemui.util.time.FakeSystemClock;
 import com.android.systemui.volume.VolumeComponent;
 import com.android.systemui.wmshell.BubblesManager;
@@ -271,7 +272,9 @@ public class StatusBarTest extends SysuiTestCase {
     @Mock private OperatorNameViewController mOperatorNameViewController;
     @Mock private OperatorNameViewController.Factory mOperatorNameViewControllerFactory;
     private ShadeController mShadeController;
-    private FakeExecutor mUiBgExecutor = new FakeExecutor(new FakeSystemClock());
+    private final FakeSystemClock mFakeSystemClock = new FakeSystemClock();
+    private FakeExecutor mMainExecutor = new FakeExecutor(mFakeSystemClock);
+    private FakeExecutor mUiBgExecutor = new FakeExecutor(mFakeSystemClock);
     private InitController mInitController = new InitController();
 
     @Before
@@ -436,6 +439,9 @@ public class StatusBarTest extends SysuiTestCase {
                 mLockscreenTransitionController,
                 mFeatureFlags,
                 mKeyguardUnlockAnimationController,
+                new Handler(TestableLooper.get(this).getLooper()),
+                mMainExecutor,
+                new MessageRouterImpl(mMainExecutor),
                 mWallpaperManager,
                 mUnlockedScreenOffAnimationController,
                 Optional.of(mStartingSurface),
@@ -702,7 +708,7 @@ public class StatusBarTest extends SysuiTestCase {
         } catch (RemoteException e) {
             fail();
         }
-        TestableLooper.get(this).processAllMessages();
+        mMainExecutor.runAllReady();
     }
 
     @Test
@@ -721,7 +727,7 @@ public class StatusBarTest extends SysuiTestCase {
         } catch (RemoteException e) {
             fail();
         }
-        TestableLooper.get(this).processAllMessages();
+        mMainExecutor.runAllReady();
     }
 
     @Test
@@ -739,7 +745,7 @@ public class StatusBarTest extends SysuiTestCase {
         } catch (RemoteException e) {
             fail();
         }
-        TestableLooper.get(this).processAllMessages();
+        mMainExecutor.runAllReady();
     }
 
     @Test
@@ -753,15 +759,6 @@ public class StatusBarTest extends SysuiTestCase {
                 new PrintWriter(new ByteArrayOutputStream()), "var", /* transitions= */ null);
     }
 
-    @Test
-    @RunWithLooper(setAsMainLooper = true)
-    public void testUpdateKeyguardState_DoesNotCrash() {
-        mStatusBar.setBarStateForTest(StatusBarState.KEYGUARD);
-        when(mLockscreenUserManager.getCurrentProfiles()).thenReturn(
-                new SparseArray<>());
-        mStatusBar.onStateChanged(StatusBarState.SHADE);
-    }
-
     @Test
     public void testFingerprintNotification_UpdatesScrims() {
         mStatusBar.notifyBiometricAuthModeChanged();