Merging MultiValueAlpha with MultiPropertyFactory

Bug: 246644619
Test: Presubmi
Change-Id: Id5abc5f3169544656f1139ae17ca59e34ac65dac
diff --git a/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java b/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java
index 58b3a83..1539769 100644
--- a/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java
+++ b/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java
@@ -44,7 +44,7 @@
 import static com.android.launcher3.config.FeatureFlags.KEYGUARD_ANIMATION;
 import static com.android.launcher3.config.FeatureFlags.SEPARATE_RECENTS_ACTIVITY;
 import static com.android.launcher3.model.data.ItemInfo.NO_MATCHING_ID;
-import static com.android.launcher3.statehandlers.DepthController.STATE_DEPTH;
+import static com.android.launcher3.util.MultiPropertyFactory.MULTI_PROPERTY_VALUE;
 import static com.android.launcher3.util.window.RefreshRateTracker.getSingleFrameMs;
 import static com.android.launcher3.views.FloatingIconView.SHAPE_PROGRESS_DURATION;
 import static com.android.launcher3.views.FloatingIconView.getFloatingIconView;
@@ -388,7 +388,8 @@
                 @Override
                 public void onAnimationStart(Animator animation) {
                     mLauncher.addOnResumeCallback(() ->
-                            ObjectAnimator.ofFloat(mLauncher.getDepthController(), STATE_DEPTH,
+                            ObjectAnimator.ofFloat(mLauncher.getDepthController().stateDepth,
+                                    MULTI_PROPERTY_VALUE,
                                     mLauncher.getStateManager().getState().getDepth(
                                             mLauncher)).start());
                 }
@@ -412,7 +413,8 @@
             @Override
             public void onAnimationStart(Animator animation) {
                 mLauncher.addOnResumeCallback(() ->
-                        ObjectAnimator.ofFloat(mLauncher.getDepthController(), STATE_DEPTH,
+                        ObjectAnimator.ofFloat(mLauncher.getDepthController().stateDepth,
+                                MULTI_PROPERTY_VALUE,
                                 mLauncher.getStateManager().getState().getDepth(
                                         mLauncher)).start());
             }
@@ -1050,8 +1052,8 @@
                 && BlurUtils.supportsBlursOnWindows();
 
         MyDepthController depthController = new MyDepthController(mLauncher);
-        ObjectAnimator backgroundRadiusAnim = ObjectAnimator.ofFloat(depthController, STATE_DEPTH,
-                        BACKGROUND_APP.getDepth(mLauncher))
+        ObjectAnimator backgroundRadiusAnim = ObjectAnimator.ofFloat(depthController.stateDepth,
+                        MULTI_PROPERTY_VALUE, BACKGROUND_APP.getDepth(mLauncher))
                 .setDuration(APP_LAUNCH_DURATION);
 
         if (allowBlurringLauncher) {
@@ -1591,8 +1593,8 @@
                             true /* animateOverviewScrim */, launcherView).getAnimators());
 
                     if (!areAllTargetsTranslucent(appTargets)) {
-                        anim.play(ObjectAnimator.ofFloat(mLauncher.getDepthController(),
-                                STATE_DEPTH,
+                        anim.play(ObjectAnimator.ofFloat(mLauncher.getDepthController().stateDepth,
+                                MULTI_PROPERTY_VALUE,
                                 BACKGROUND_APP.getDepth(mLauncher), NORMAL.getDepth(mLauncher)));
                     }
 
diff --git a/quickstep/src/com/android/launcher3/statehandlers/DepthController.java b/quickstep/src/com/android/launcher3/statehandlers/DepthController.java
index 2a78bdf..867e168 100644
--- a/quickstep/src/com/android/launcher3/statehandlers/DepthController.java
+++ b/quickstep/src/com/android/launcher3/statehandlers/DepthController.java
@@ -19,6 +19,7 @@
 import static com.android.launcher3.anim.Interpolators.LINEAR;
 import static com.android.launcher3.states.StateAnimationConfig.ANIM_DEPTH;
 import static com.android.launcher3.states.StateAnimationConfig.SKIP_DEPTH_CONTROLLER;
+import static com.android.launcher3.util.MultiPropertyFactory.MULTI_PROPERTY_VALUE;
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
@@ -112,7 +113,7 @@
             return;
         }
 
-        STATE_DEPTH.set(this, toState.getDepth(mLauncher));
+        stateDepth.setValue(toState.getDepth(mLauncher));
         if (toState == LauncherState.BACKGROUND_APP) {
             mLauncher.getDragLayer().getViewTreeObserver().addOnDrawListener(mOnDrawListener);
         }
@@ -127,7 +128,8 @@
         }
 
         float toDepth = toState.getDepth(mLauncher);
-        animation.setFloat(this, STATE_DEPTH, toDepth, config.getInterpolator(ANIM_DEPTH, LINEAR));
+        animation.setFloat(stateDepth, MULTI_PROPERTY_VALUE, toDepth,
+                config.getInterpolator(ANIM_DEPTH, LINEAR));
     }
 
     @Override
@@ -140,7 +142,7 @@
     public void onMultiWindowModeChanged(boolean isInMultiWindowMode) {
         mIgnoreStateChangesDuringMultiWindowAnimation = true;
 
-        ObjectAnimator mwAnimation = ObjectAnimator.ofFloat(this, STATE_DEPTH,
+        ObjectAnimator mwAnimation = ObjectAnimator.ofFloat(stateDepth, MULTI_PROPERTY_VALUE,
                 mLauncher.getStateManager().getState().getDepth(mLauncher, isInMultiWindowMode))
                 .setDuration(300);
         mwAnimation.addListener(new AnimatorListenerAdapter() {
@@ -158,8 +160,8 @@
         writer.println(prefix + "\tmMaxBlurRadius=" + mMaxBlurRadius);
         writer.println(prefix + "\tmCrossWindowBlursEnabled=" + mCrossWindowBlursEnabled);
         writer.println(prefix + "\tmSurface=" + mSurface);
-        writer.println(prefix + "\tmStateDepth=" + STATE_DEPTH.get(this));
-        writer.println(prefix + "\tmWidgetDepth=" + WIDGET_DEPTH.get(this));
+        writer.println(prefix + "\tmStateDepth=" + stateDepth.getValue());
+        writer.println(prefix + "\tmWidgetDepth=" + widgetDepth.getValue());
         writer.println(prefix + "\tmCurrentBlur=" + mCurrentBlur);
         writer.println(prefix + "\tmInEarlyWakeUp=" + mInEarlyWakeUp);
         writer.println(prefix + "\tmIgnoreStateChangesDuringMultiWindowAnimation="
diff --git a/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java b/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java
index 026fa23..875327d 100644
--- a/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java
@@ -31,6 +31,7 @@
 import static com.android.launcher3.taskbar.TaskbarViewController.ALPHA_INDEX_KEYGUARD;
 import static com.android.launcher3.taskbar.TaskbarViewController.ALPHA_INDEX_SMALL_SCREEN;
 import static com.android.launcher3.taskbar.Utilities.appendFlag;
+import static com.android.launcher3.util.MultiPropertyFactory.MULTI_PROPERTY_VALUE;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_A11Y_BUTTON_CLICKABLE;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_A11Y_BUTTON_LONG_CLICKABLE;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_BACK_DISABLED;
@@ -84,6 +85,7 @@
 import com.android.launcher3.taskbar.navbutton.NavButtonLayoutFactory;
 import com.android.launcher3.taskbar.navbutton.NavButtonLayoutFactory.NavButtonLayoutter;
 import com.android.launcher3.util.DimensionUtils;
+import com.android.launcher3.util.MultiPropertyFactory.MultiProperty;
 import com.android.launcher3.util.MultiValueAlpha;
 import com.android.launcher3.util.TouchController;
 import com.android.launcher3.views.BaseDragLayer;
@@ -227,13 +229,13 @@
 
         mPropertyHolders.add(new StatePropertyHolder(
                 mControllers.taskbarViewController.getTaskbarIconAlpha()
-                        .getProperty(ALPHA_INDEX_KEYGUARD),
+                        .get(ALPHA_INDEX_KEYGUARD),
                 flags -> (flags & FLAG_KEYGUARD_VISIBLE) == 0
                         && (flags & FLAG_SCREEN_PINNING_ACTIVE) == 0));
 
         mPropertyHolders.add(new StatePropertyHolder(
                 mControllers.taskbarViewController.getTaskbarIconAlpha()
-                        .getProperty(ALPHA_INDEX_SMALL_SCREEN),
+                        .get(ALPHA_INDEX_SMALL_SCREEN),
                 flags -> (flags & FLAG_SMALL_SCREEN) == 0));
 
         mPropertyHolders.add(new StatePropertyHolder(mControllers.taskbarDragLayerController
@@ -340,7 +342,7 @@
         mBackButtonAlpha = new MultiValueAlpha(mBackButton, NUM_ALPHA_CHANNELS);
         mBackButtonAlpha.setUpdateVisibility(true);
         mPropertyHolders.add(new StatePropertyHolder(
-                mBackButtonAlpha.getProperty(ALPHA_INDEX_KEYGUARD_OR_DISABLE),
+                mBackButtonAlpha.get(ALPHA_INDEX_KEYGUARD_OR_DISABLE),
                 flags -> {
                     // Show only if not disabled, and if not on the keyguard or otherwise only when
                     // the bouncer or a lockscreen app is showing above the keyguard
@@ -368,7 +370,7 @@
         mHomeButtonAlpha = new MultiValueAlpha(mHomeButton, NUM_ALPHA_CHANNELS);
         mHomeButtonAlpha.setUpdateVisibility(true);
         mPropertyHolders.add(
-                new StatePropertyHolder(mHomeButtonAlpha.getProperty(
+                new StatePropertyHolder(mHomeButtonAlpha.get(
                         ALPHA_INDEX_KEYGUARD_OR_DISABLE),
                 flags -> (flags & FLAG_KEYGUARD_VISIBLE) == 0 &&
                         (flags & FLAG_DISABLE_HOME) == 0));
@@ -720,7 +722,7 @@
 
             // Hide back button in SUW if keyboard is showing (IME draws its own back).
             mPropertyHolders.add(new StatePropertyHolder(
-                    mBackButtonAlpha.getProperty(ALPHA_INDEX_SUW),
+                    mBackButtonAlpha.get(ALPHA_INDEX_SUW),
                     flags -> (flags & FLAG_IME_VISIBLE) == 0));
 
             // TODO(b/210906568) Dark intensity is currently not propagated during setup, so set
@@ -1046,9 +1048,9 @@
             mAnimator.addListener(new AlphaUpdateListener(view));
         }
 
-        StatePropertyHolder(MultiValueAlpha.AlphaProperty alphaProperty,
+        StatePropertyHolder(MultiProperty alphaProperty,
                 IntPredicate enableCondition) {
-            this(alphaProperty, enableCondition, MultiValueAlpha.VALUE, 1, 0);
+            this(alphaProperty, enableCondition, MULTI_PROPERTY_VALUE, 1, 0);
         }
 
         StatePropertyHolder(AnimatedFloat animatedFloat, IntPredicate enableCondition) {
diff --git a/quickstep/src/com/android/launcher3/taskbar/StashedHandleViewController.java b/quickstep/src/com/android/launcher3/taskbar/StashedHandleViewController.java
index e23e27e..12dbcb3 100644
--- a/quickstep/src/com/android/launcher3/taskbar/StashedHandleViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/StashedHandleViewController.java
@@ -31,6 +31,7 @@
 import com.android.launcher3.anim.RevealOutlineAnimation;
 import com.android.launcher3.anim.RoundedRectRevealOutlineProvider;
 import com.android.launcher3.util.Executors;
+import com.android.launcher3.util.MultiPropertyFactory;
 import com.android.launcher3.util.MultiValueAlpha;
 import com.android.quickstep.AnimatedFloat;
 import com.android.systemui.shared.navigationbar.RegionSamplingHelper;
@@ -105,7 +106,7 @@
                     .getDimensionPixelSize(R.dimen.taskbar_stashed_handle_width);
         }
 
-        mTaskbarStashedHandleAlpha.getProperty(ALPHA_INDEX_STASHED).setValue(
+        mTaskbarStashedHandleAlpha.get(ALPHA_INDEX_STASHED).setValue(
                 isPhoneGestureNavMode(deviceProfile) ? 1 : 0);
         mTaskbarStashedHandleHintScale.updateValue(1f);
 
@@ -166,7 +167,7 @@
         return TaskbarManager.isPhoneMode(deviceProfile) && !mActivity.isThreeButtonNav();
     }
 
-    public MultiValueAlpha getStashedHandleAlpha() {
+    public MultiPropertyFactory<View> getStashedHandleAlpha() {
         return mTaskbarStashedHandleAlpha;
     }
 
@@ -222,7 +223,7 @@
      * Should be called when the home button is disabled, so we can hide this handle as well.
      */
     public void setIsHomeButtonDisabled(boolean homeDisabled) {
-        mTaskbarStashedHandleAlpha.getProperty(ALPHA_INDEX_HOME_DISABLED).setValue(
+        mTaskbarStashedHandleAlpha.get(ALPHA_INDEX_HOME_DISABLED).setValue(
                 homeDisabled ? 0 : 1);
     }
 
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
index 4c5e0be..237d1ef 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
@@ -523,7 +523,7 @@
     private void onNotificationShadeExpandChanged(boolean isExpanded, boolean skipAnim) {
         float alpha = isExpanded ? 0 : 1;
         AnimatorSet anim = new AnimatorSet();
-        anim.play(mControllers.taskbarViewController.getTaskbarIconAlpha().getProperty(
+        anim.play(mControllers.taskbarViewController.getTaskbarIconAlpha().get(
                 TaskbarViewController.ALPHA_INDEX_NOTIFICATION_EXPANDED).animateToValue(alpha));
         if (!isThreeButtonNav()) {
             anim.play(mControllers.taskbarDragLayerController.getNotificationShadeBgTaskbar()
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarForceVisibleImmersiveController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarForceVisibleImmersiveController.java
index 6c793a6..f7aafe0 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarForceVisibleImmersiveController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarForceVisibleImmersiveController.java
@@ -31,13 +31,10 @@
 import android.view.View;
 
 import com.android.launcher3.compat.AccessibilityManagerCompat;
-import com.android.launcher3.util.MultiValueAlpha;
+import com.android.launcher3.util.MultiPropertyFactory;
 import com.android.launcher3.util.TouchController;
 import com.android.quickstep.AnimatedFloat;
 
-import java.util.Optional;
-import java.util.function.Consumer;
-
 /**
  * Controller for taskbar when force visible in immersive mode is set.
  */
@@ -54,8 +51,6 @@
     private final Runnable mUndimmingRunnable = this::undimIcons;
     private final AnimatedFloat mIconAlphaForDimming = new AnimatedFloat(
             this::updateIconDimmingAlpha);
-    private final Consumer<MultiValueAlpha> mImmersiveModeAlphaUpdater = alpha -> alpha.getProperty(
-            ALPHA_INDEX_IMMERSIVE_MODE).setValue(mIconAlphaForDimming.value);
     private final View.AccessibilityDelegate mKidsModeAccessibilityDelegate =
             new View.AccessibilityDelegate() {
                 @Override
@@ -145,22 +140,20 @@
     }
 
     private void updateIconDimmingAlpha() {
-        getBackButtonAlphaOptional().ifPresent(mImmersiveModeAlphaUpdater);
-        getHomeButtonAlphaOptional().ifPresent(mImmersiveModeAlphaUpdater);
-    }
-
-    private Optional<MultiValueAlpha> getBackButtonAlphaOptional() {
         if (mControllers == null || mControllers.navbarButtonsViewController == null) {
-            return Optional.empty();
+            return;
         }
-        return Optional.ofNullable(mControllers.navbarButtonsViewController.getBackButtonAlpha());
-    }
 
-    private Optional<MultiValueAlpha> getHomeButtonAlphaOptional() {
-        if (mControllers == null || mControllers.navbarButtonsViewController == null) {
-            return Optional.empty();
+        MultiPropertyFactory<View> ba =
+                mControllers.navbarButtonsViewController.getBackButtonAlpha();
+        if (ba != null) {
+            ba.get(ALPHA_INDEX_IMMERSIVE_MODE).setValue(mIconAlphaForDimming.value);
         }
-        return Optional.ofNullable(mControllers.navbarButtonsViewController.getHomeButtonAlpha());
+        MultiPropertyFactory<View> ha =
+                mControllers.navbarButtonsViewController.getHomeButtonAlpha();
+        if (ba != null) {
+            ha.get(ALPHA_INDEX_IMMERSIVE_MODE).setValue(mIconAlphaForDimming.value);
+        }
     }
 
     @Override
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarLauncherStateController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarLauncherStateController.java
index de37b70..63f1486 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarLauncherStateController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarLauncherStateController.java
@@ -38,7 +38,7 @@
 import com.android.launcher3.anim.AnimatorListeners;
 import com.android.launcher3.statemanager.StateManager;
 import com.android.launcher3.uioverrides.QuickstepLauncher;
-import com.android.launcher3.util.MultiValueAlpha;
+import com.android.launcher3.util.MultiPropertyFactory.MultiProperty;
 import com.android.quickstep.AnimatedFloat;
 import com.android.quickstep.RecentsAnimationCallbacks;
 import com.android.quickstep.RecentsAnimationController;
@@ -49,7 +49,6 @@
 import java.io.PrintWriter;
 import java.util.HashMap;
 import java.util.StringJoiner;
-import java.util.function.Consumer;
 
 /**
  * Track LauncherState, RecentsAnimation, resumed state for task bar in one place here and animate
@@ -73,7 +72,7 @@
 
     private TaskbarControllers mControllers;
     private AnimatedFloat mTaskbarBackgroundAlpha;
-    private MultiValueAlpha.AlphaProperty mIconAlphaForHome;
+    private MultiProperty mIconAlphaForHome;
     private QuickstepLauncher mLauncher;
 
     private Integer mPrevState;
@@ -89,18 +88,8 @@
     // We skip any view synchronizations during init/destroy.
     private boolean mCanSyncViews;
 
-    private final Consumer<Float> mIconAlphaForHomeConsumer = alpha -> {
-        /*
-         * Hide Launcher Hotseat icons when Taskbar icons have opacity. Both icon sets
-         * should not be visible at the same time.
-         */
-        mLauncher.getHotseat().setIconsAlpha(alpha > 0 ? 0 : 1);
-        mLauncher.getHotseat().setQsbAlpha(
-                mLauncher.getDeviceProfile().isQsbInline && alpha > 0 ? 0 : 1);
-    };
-
     private final DeviceProfile.OnDeviceProfileChangeListener mOnDeviceProfileChangeListener =
-            dp -> mIconAlphaForHomeConsumer.accept(mIconAlphaForHome.getValue());
+            dp -> updateIconAlphaForHome(mIconAlphaForHome.getValue());
 
     private final StateManager.StateListener<LauncherState> mStateListener =
             new StateManager.StateListener<LauncherState>() {
@@ -139,9 +128,8 @@
 
         mTaskbarBackgroundAlpha = mControllers.taskbarDragLayerController
                 .getTaskbarBackgroundAlpha();
-        MultiValueAlpha taskbarIconAlpha = mControllers.taskbarViewController.getTaskbarIconAlpha();
-        mIconAlphaForHome = taskbarIconAlpha.getProperty(ALPHA_INDEX_HOME);
-        mIconAlphaForHome.setConsumer(mIconAlphaForHomeConsumer);
+        mIconAlphaForHome = mControllers.taskbarViewController
+                .getTaskbarIconAlpha().get(ALPHA_INDEX_HOME);
 
         mIconAlignment.finishAnimation();
         onIconAlignmentRatioChanged();
@@ -162,7 +150,6 @@
 
         mIconAlignment.finishAnimation();
 
-        mIconAlphaForHome.setConsumer(null);
         mLauncher.getHotseat().setIconsAlpha(1f);
         mLauncher.getStateManager().removeStateListener(mStateListener);
 
@@ -383,7 +370,7 @@
                 @Override
                 public void onAnimationStart(Animator animation) {
                     if (mLauncher.getHotseat().getIconsAlpha() > 0) {
-                        mIconAlphaForHome.setValue(mLauncher.getHotseat().getIconsAlpha());
+                        updateIconAlphaForHome(mLauncher.getHotseat().getIconsAlpha());
                     }
                 }
             });
@@ -405,7 +392,7 @@
                 mIconAlignment.value, mIconAlignment.getEndValue(), mLauncher.getDeviceProfile());
         mControllers.navbarButtonsViewController.updateTaskbarAlignment(mIconAlignment.value);
         // Switch taskbar and hotseat in last frame
-        mIconAlphaForHome.setValue(taskbarWillBeVisible ? 1 : 0);
+        updateIconAlphaForHome(taskbarWillBeVisible ? 1 : 0);
 
         // Sync the first frame where we swap taskbar and hotseat.
         if (firstFrameVisChanged && mCanSyncViews && !Utilities.IS_RUNNING_IN_TEST_HARNESS) {
@@ -415,6 +402,18 @@
         }
     }
 
+    private void updateIconAlphaForHome(float alpha) {
+        mIconAlphaForHome.setValue(alpha);
+
+        /*
+         * Hide Launcher Hotseat icons when Taskbar icons have opacity. Both icon sets
+         * should not be visible at the same time.
+         */
+        mLauncher.getHotseat().setIconsAlpha(alpha > 0 ? 0 : 1);
+        mLauncher.getHotseat().setQsbAlpha(
+                mLauncher.getDeviceProfile().isQsbInline && alpha > 0 ? 0 : 1);
+    }
+
     private final class TaskBarRecentsAnimationListener implements
             RecentsAnimationCallbacks.RecentsAnimationListener {
         private final RecentsAnimationCallbacks mCallbacks;
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarStashController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarStashController.java
index c5e1b8f..64eb99e 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarStashController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarStashController.java
@@ -44,7 +44,7 @@
 import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.AnimatorListeners;
 import com.android.launcher3.testing.shared.TestProtocol;
-import com.android.launcher3.util.MultiValueAlpha.AlphaProperty;
+import com.android.launcher3.util.MultiPropertyFactory.MultiProperty;
 import com.android.quickstep.AnimatedFloat;
 import com.android.quickstep.SystemUiProxy;
 
@@ -144,11 +144,11 @@
     private AnimatedFloat mTaskbarBackgroundOffset;
     private AnimatedFloat mTaskbarImeBgAlpha;
     // TaskbarView icon properties.
-    private AlphaProperty mIconAlphaForStash;
+    private MultiProperty mIconAlphaForStash;
     private AnimatedFloat mIconScaleForStash;
     private AnimatedFloat mIconTranslationYForStash;
     // Stashed handle properties.
-    private AlphaProperty mTaskbarStashedHandleAlpha;
+    private MultiProperty mTaskbarStashedHandleAlpha;
     private AnimatedFloat mTaskbarStashedHandleHintScale;
 
     /** Whether we are currently visually stashed (might change based on launcher state). */
@@ -199,14 +199,14 @@
         mTaskbarImeBgAlpha = dragLayerController.getImeBgTaskbar();
 
         TaskbarViewController taskbarViewController = controllers.taskbarViewController;
-        mIconAlphaForStash = taskbarViewController.getTaskbarIconAlpha().getProperty(
+        mIconAlphaForStash = taskbarViewController.getTaskbarIconAlpha().get(
                 TaskbarViewController.ALPHA_INDEX_STASH);
         mIconScaleForStash = taskbarViewController.getTaskbarIconScaleForStash();
         mIconTranslationYForStash = taskbarViewController.getTaskbarIconTranslationYForStash();
 
         StashedHandleViewController stashedHandleController =
                 controllers.stashedHandleViewController;
-        mTaskbarStashedHandleAlpha = stashedHandleController.getStashedHandleAlpha().getProperty(
+        mTaskbarStashedHandleAlpha = stashedHandleController.getStashedHandleAlpha().get(
                 StashedHandleViewController.ALPHA_INDEX_STASHED);
         mTaskbarStashedHandleHintScale = stashedHandleController.getStashedHandleHintScale();
 
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
index 16dd90d..a88c05d 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
@@ -50,6 +50,7 @@
 import com.android.launcher3.util.HorizontalInsettableView;
 import com.android.launcher3.util.ItemInfoMatcher;
 import com.android.launcher3.util.LauncherBindableItemsContainer;
+import com.android.launcher3.util.MultiPropertyFactory;
 import com.android.launcher3.util.MultiValueAlpha;
 import com.android.quickstep.AnimatedFloat;
 import com.android.quickstep.SystemUiProxy;
@@ -146,7 +147,7 @@
         return mTaskbarView.areIconsVisible();
     }
 
-    public MultiValueAlpha getTaskbarIconAlpha() {
+    public MultiPropertyFactory<View> getTaskbarIconAlpha() {
         return mTaskbarIconAlpha;
     }
 
@@ -161,7 +162,7 @@
      * Should be called when the IME switcher visibility changes.
      */
     public void setIsImeSwitcherVisible(boolean isImeSwitcherVisible) {
-        mTaskbarIconAlpha.getProperty(ALPHA_INDEX_IME_BUTTON_NAV).setValue(
+        mTaskbarIconAlpha.get(ALPHA_INDEX_IME_BUTTON_NAV).setValue(
                 isImeSwitcherVisible ? 0 : 1);
     }
 
@@ -170,7 +171,7 @@
      */
     public void setRecentsButtonDisabled(boolean isDisabled) {
         // TODO: check TaskbarStashController#supportsStashing(), to stash instead of setting alpha.
-        mTaskbarIconAlpha.getProperty(ALPHA_INDEX_RECENTS_DISABLED).setValue(isDisabled ? 0 : 1);
+        mTaskbarIconAlpha.get(ALPHA_INDEX_RECENTS_DISABLED).setValue(isDisabled ? 0 : 1);
     }
 
     /**
diff --git a/quickstep/src/com/android/launcher3/taskbar/VoiceInteractionWindowController.kt b/quickstep/src/com/android/launcher3/taskbar/VoiceInteractionWindowController.kt
index 076900c..837af58 100644
--- a/quickstep/src/com/android/launcher3/taskbar/VoiceInteractionWindowController.kt
+++ b/quickstep/src/com/android/launcher3/taskbar/VoiceInteractionWindowController.kt
@@ -63,11 +63,11 @@
         // Fade out taskbar icons and stashed handle.
         val taskbarIconAlpha = if (isVoiceInteractionWindowVisible) 0f else 1f
         val fadeTaskbarIcons = controllers.taskbarViewController.taskbarIconAlpha
-            .getProperty(TaskbarViewController.ALPHA_INDEX_ASSISTANT_INVOKED)
+            .get(TaskbarViewController.ALPHA_INDEX_ASSISTANT_INVOKED)
             .animateToValue(taskbarIconAlpha)
             .setDuration(TASKBAR_ICONS_FADE_DURATION)
         val fadeStashedHandle = controllers.stashedHandleViewController.stashedHandleAlpha
-            .getProperty(StashedHandleViewController.ALPHA_INDEX_ASSISTANT_INVOKED)
+            .get(StashedHandleViewController.ALPHA_INDEX_ASSISTANT_INVOKED)
             .animateToValue(taskbarIconAlpha)
             .setDuration(STASHED_HANDLE_FADE_DURATION)
         fadeTaskbarIcons.start()
diff --git a/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java b/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
index 2bf6f12..c962de2 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
@@ -45,7 +45,6 @@
 import static com.android.launcher3.util.DisplayController.CHANGE_NAVIGATION_MODE;
 import static com.android.launcher3.util.Executors.THREAD_POOL_EXECUTOR;
 import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
-import static com.android.quickstep.util.BaseDepthController.WIDGET_DEPTH;
 import static com.android.systemui.shared.system.ActivityManagerWrapper.CLOSE_SYSTEM_WINDOWS_REASON_HOME_KEY;
 
 import android.animation.AnimatorSet;
@@ -596,9 +595,8 @@
         super.onWidgetsTransition(progress);
         onTaskbarInAppDisplayProgressUpdate(progress, WIDGETS_PAGE_PROGRESS_INDEX);
         if (mEnableWidgetDepth) {
-            WIDGET_DEPTH.set(getDepthController(),
-                    Utilities.mapToRange(progress, 0f, 1f, 0f, getDeviceProfile().bottomSheetDepth,
-                            EMPHASIZED));
+            getDepthController().widgetDepth.setValue(Utilities.mapToRange(
+                    progress, 0f, 1f, 0f, getDeviceProfile().bottomSheetDepth, EMPHASIZED));
         }
     }
 
diff --git a/quickstep/src/com/android/launcher3/uioverrides/RecentsViewStateController.java b/quickstep/src/com/android/launcher3/uioverrides/RecentsViewStateController.java
index 0e1120b..e8e8328 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/RecentsViewStateController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/RecentsViewStateController.java
@@ -20,6 +20,7 @@
 import static com.android.launcher3.LauncherState.OVERVIEW_SPLIT_SELECT;
 import static com.android.launcher3.anim.Interpolators.LINEAR;
 import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_ACTIONS_FADE;
+import static com.android.launcher3.util.MultiPropertyFactory.MULTI_PROPERTY_VALUE;
 import static com.android.quickstep.views.RecentsView.CONTENT_ALPHA;
 import static com.android.quickstep.views.RecentsView.FULLSCREEN_PROGRESS;
 import static com.android.quickstep.views.RecentsView.TASK_MODALNESS;
@@ -43,7 +44,6 @@
 import com.android.launcher3.anim.PropertySetter;
 import com.android.launcher3.states.StateAnimationConfig;
 import com.android.launcher3.touch.PagedOrientationHandler;
-import com.android.launcher3.util.MultiValueAlpha;
 import com.android.quickstep.util.AnimUtils;
 import com.android.quickstep.util.SplitAnimationTimings;
 import com.android.quickstep.views.ClearAllButton;
@@ -164,7 +164,7 @@
                 clearAllButtonAlpha, LINEAR);
         float overviewButtonAlpha = state.areElementsVisible(mLauncher, OVERVIEW_ACTIONS) ? 1 : 0;
         propertySetter.setFloat(mLauncher.getActionsView().getVisibilityAlpha(),
-                MultiValueAlpha.VALUE, overviewButtonAlpha, config.getInterpolator(
+                MULTI_PROPERTY_VALUE, overviewButtonAlpha, config.getInterpolator(
                         ANIM_OVERVIEW_ACTIONS_FADE, LINEAR));
     }
 
diff --git a/quickstep/src/com/android/quickstep/LauncherActivityInterface.java b/quickstep/src/com/android/quickstep/LauncherActivityInterface.java
index 0a7d226..ecb3747 100644
--- a/quickstep/src/com/android/quickstep/LauncherActivityInterface.java
+++ b/quickstep/src/com/android/quickstep/LauncherActivityInterface.java
@@ -22,6 +22,7 @@
 import static com.android.launcher3.anim.AnimatorListeners.forEndCallback;
 import static com.android.launcher3.anim.Interpolators.LINEAR;
 import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
+import static com.android.launcher3.util.MultiPropertyFactory.MULTI_PROPERTY_VALUE;
 
 import android.animation.Animator;
 import android.animation.AnimatorSet;
@@ -129,9 +130,9 @@
                 // Animate the blur and wallpaper zoom
                 float fromDepthRatio = BACKGROUND_APP.getDepth(activity);
                 float toDepthRatio = OVERVIEW.getDepth(activity);
-                pa.addFloat(getDepthController(),
+                pa.addFloat(getDepthController().stateDepth,
                         new LauncherAnimUtils.ClampedProperty<>(
-                                DepthController.STATE_DEPTH, fromDepthRatio, toDepthRatio),
+                                MULTI_PROPERTY_VALUE, fromDepthRatio, toDepthRatio),
                         fromDepthRatio, toDepthRatio, LINEAR);
             }
         };
diff --git a/quickstep/src/com/android/quickstep/TaskViewUtils.java b/quickstep/src/com/android/quickstep/TaskViewUtils.java
index 7d6bbac..9d5e7c3 100644
--- a/quickstep/src/com/android/quickstep/TaskViewUtils.java
+++ b/quickstep/src/com/android/quickstep/TaskViewUtils.java
@@ -36,7 +36,7 @@
 import static com.android.launcher3.anim.Interpolators.LINEAR;
 import static com.android.launcher3.anim.Interpolators.TOUCH_RESPONSE_INTERPOLATOR;
 import static com.android.launcher3.anim.Interpolators.clampToProgress;
-import static com.android.launcher3.statehandlers.DepthController.STATE_DEPTH;
+import static com.android.launcher3.util.MultiPropertyFactory.MULTI_PROPERTY_VALUE;
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
@@ -376,8 +376,8 @@
         });
 
         if (depthController != null) {
-            out.setFloat(depthController, STATE_DEPTH, BACKGROUND_APP.getDepth(baseActivity),
-                    TOUCH_RESPONSE_INTERPOLATOR);
+            out.setFloat(depthController.stateDepth, MULTI_PROPERTY_VALUE,
+                    BACKGROUND_APP.getDepth(baseActivity), TOUCH_RESPONSE_INTERPOLATOR);
         }
     }
 
diff --git a/quickstep/src/com/android/quickstep/fallback/FallbackRecentsStateController.java b/quickstep/src/com/android/quickstep/fallback/FallbackRecentsStateController.java
index 19a6c38..062e50e 100644
--- a/quickstep/src/com/android/quickstep/fallback/FallbackRecentsStateController.java
+++ b/quickstep/src/com/android/quickstep/fallback/FallbackRecentsStateController.java
@@ -45,7 +45,7 @@
 import com.android.launcher3.anim.PropertySetter;
 import com.android.launcher3.statemanager.StateManager.StateHandler;
 import com.android.launcher3.states.StateAnimationConfig;
-import com.android.launcher3.util.MultiValueAlpha;
+import com.android.launcher3.util.MultiPropertyFactory;
 import com.android.quickstep.RecentsActivity;
 import com.android.quickstep.views.ClearAllButton;
 
@@ -95,7 +95,7 @@
                 clearAllButtonAlpha, LINEAR);
         float overviewButtonAlpha = state.hasOverviewActions() ? 1 : 0;
         setter.setFloat(mActivity.getActionsView().getVisibilityAlpha(),
-                MultiValueAlpha.VALUE, overviewButtonAlpha, LINEAR);
+                MultiPropertyFactory.MULTI_PROPERTY_VALUE, overviewButtonAlpha, LINEAR);
 
         float[] scaleAndOffset = state.getOverviewScaleAndOffset(mActivity);
         setter.setFloat(mRecentsView, RECENTS_SCALE_PROPERTY, scaleAndOffset[0],
diff --git a/quickstep/src/com/android/quickstep/util/BaseDepthController.java b/quickstep/src/com/android/quickstep/util/BaseDepthController.java
index 064e675..877e28a 100644
--- a/quickstep/src/com/android/quickstep/util/BaseDepthController.java
+++ b/quickstep/src/com/android/quickstep/util/BaseDepthController.java
@@ -25,6 +25,7 @@
 import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.util.MultiPropertyFactory;
+import com.android.launcher3.util.MultiPropertyFactory.MultiProperty;
 import com.android.systemui.shared.system.BlurUtils;
 
 /**
@@ -45,20 +46,15 @@
                 }
             };
 
-    private static final MultiPropertyFactory<BaseDepthController> DEPTH_PROPERTY_FACTORY =
-            new MultiPropertyFactory<>("depthProperty", DEPTH, Float::max);
-
-    private static final int DEPTH_INDEX_STATE_TRANSITION = 1;
-    private static final int DEPTH_INDEX_WIDGET = 2;
-
-    /** Property to set the depth for state transition. */
-    public static final FloatProperty<BaseDepthController> STATE_DEPTH =
-            DEPTH_PROPERTY_FACTORY.get(DEPTH_INDEX_STATE_TRANSITION);
-    /** Property to set the depth for widget picker. */
-    public static final FloatProperty<BaseDepthController> WIDGET_DEPTH =
-            DEPTH_PROPERTY_FACTORY.get(DEPTH_INDEX_WIDGET);
+    private static final int DEPTH_INDEX_STATE_TRANSITION = 0;
+    private static final int DEPTH_INDEX_WIDGET = 1;
+    private static final int DEPTH_INDEX_COUNT = 2;
 
     protected final Launcher mLauncher;
+    /** Property to set the depth for state transition. */
+    public final MultiProperty stateDepth;
+    /** Property to set the depth for widget picker. */
+    public final MultiProperty widgetDepth;
 
     /**
      * Blur radius when completely zoomed out, in pixels.
@@ -92,6 +88,11 @@
         mLauncher = activity;
         mMaxBlurRadius = activity.getResources().getInteger(R.integer.max_depth_blur_radius);
         mWallpaperManager = activity.getSystemService(WallpaperManager.class);
+
+        MultiPropertyFactory<BaseDepthController> depthProperty =
+                new MultiPropertyFactory<>(this, DEPTH, DEPTH_INDEX_COUNT, Float::max);
+        stateDepth = depthProperty.get(DEPTH_INDEX_STATE_TRANSITION);
+        widgetDepth = depthProperty.get(DEPTH_INDEX_WIDGET);
     }
 
     protected void setCrossWindowBlursEnabled(boolean isEnabled) {
diff --git a/quickstep/src/com/android/quickstep/views/OverviewActionsView.java b/quickstep/src/com/android/quickstep/views/OverviewActionsView.java
index 514d5b9..a16ff8f 100644
--- a/quickstep/src/com/android/quickstep/views/OverviewActionsView.java
+++ b/quickstep/src/com/android/quickstep/views/OverviewActionsView.java
@@ -33,8 +33,8 @@
 import com.android.launcher3.R;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.util.DisplayController;
+import com.android.launcher3.util.MultiPropertyFactory.MultiProperty;
 import com.android.launcher3.util.MultiValueAlpha;
-import com.android.launcher3.util.MultiValueAlpha.AlphaProperty;
 import com.android.launcher3.util.NavigationMode;
 import com.android.quickstep.TaskOverlayFactory.OverlayUICallbacks;
 import com.android.quickstep.util.LayoutUtils;
@@ -130,7 +130,6 @@
         mMultiValueAlpha.setUpdateVisibility(true);
 
         findViewById(R.id.action_screenshot).setOnClickListener(this);
-
         mSplitButton = findViewById(R.id.action_split);
         mSplitButton.setOnClickListener(this);
     }
@@ -177,7 +176,7 @@
             mHiddenFlags &= ~visibilityFlags;
         }
         boolean isHidden = mHiddenFlags != 0;
-        mMultiValueAlpha.getProperty(INDEX_HIDDEN_FLAGS_ALPHA).setValue(isHidden ? 0 : 1);
+        mMultiValueAlpha.get(INDEX_HIDDEN_FLAGS_ALPHA).setValue(isHidden ? 0 : 1);
     }
 
     /**
@@ -232,20 +231,20 @@
         updateSplitButtonEnabledState();
     }
 
-    public AlphaProperty getContentAlpha() {
-        return mMultiValueAlpha.getProperty(INDEX_CONTENT_ALPHA);
+    public MultiProperty getContentAlpha() {
+        return mMultiValueAlpha.get(INDEX_CONTENT_ALPHA);
     }
 
-    public AlphaProperty getVisibilityAlpha() {
-        return mMultiValueAlpha.getProperty(INDEX_VISIBILITY_ALPHA);
+    public MultiProperty getVisibilityAlpha() {
+        return mMultiValueAlpha.get(INDEX_VISIBILITY_ALPHA);
     }
 
-    public AlphaProperty getFullscreenAlpha() {
-        return mMultiValueAlpha.getProperty(INDEX_FULLSCREEN_ALPHA);
+    public MultiProperty getFullscreenAlpha() {
+        return mMultiValueAlpha.get(INDEX_FULLSCREEN_ALPHA);
     }
 
-    public AlphaProperty getShareTargetAlpha() {
-        return mMultiValueAlpha.getProperty(INDEX_SHARE_TARGET_ALPHA);
+    public MultiProperty getShareTargetAlpha() {
+        return mMultiValueAlpha.get(INDEX_SHARE_TARGET_ALPHA);
     }
 
     /**
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index 72467e6..ce96b71 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -45,10 +45,10 @@
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_TASK_CLEAR_ALL;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_TASK_DISMISS_SWIPE_UP;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_TASK_LAUNCH_SWIPE_DOWN;
-import static com.android.launcher3.statehandlers.DepthController.STATE_DEPTH;
 import static com.android.launcher3.touch.PagedOrientationHandler.CANVAS_TRANSLATE;
 import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
 import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
+import static com.android.launcher3.util.MultiPropertyFactory.MULTI_PROPERTY_VALUE;
 import static com.android.launcher3.util.SplitConfigurationOptions.STAGE_POSITION_BOTTOM_OR_RIGHT;
 import static com.android.launcher3.util.SplitConfigurationOptions.STAGE_POSITION_TOP_OR_LEFT;
 import static com.android.launcher3.util.SystemUiController.UI_STATE_FULLSCREEN_TASK;
@@ -147,7 +147,6 @@
 import com.android.launcher3.util.DynamicResource;
 import com.android.launcher3.util.IntArray;
 import com.android.launcher3.util.IntSet;
-import com.android.launcher3.util.MultiValueAlpha;
 import com.android.launcher3.util.ResourceBasedOverride.Overrides;
 import com.android.launcher3.util.RunnableList;
 import com.android.launcher3.util.SplitConfigurationOptions.SplitBounds;
@@ -1897,7 +1896,7 @@
 
     private void animateActionsViewAlpha(float alphaValue, long duration) {
         mActionsViewAlphaAnimator = ObjectAnimator.ofFloat(
-                mActionsView.getVisibilityAlpha(), MultiValueAlpha.VALUE, alphaValue);
+                mActionsView.getVisibilityAlpha(), MULTI_PROPERTY_VALUE, alphaValue);
         mActionsViewAlphaAnimatorFinalValue = alphaValue;
         mActionsViewAlphaAnimator.setDuration(duration);
         // Set autocancel to prevent race-conditiony setting of alpha from other animations
@@ -4554,8 +4553,8 @@
 
         DepthController depthController = getDepthController();
         if (depthController != null) {
-            ObjectAnimator depthAnimator = ObjectAnimator.ofFloat(depthController, STATE_DEPTH,
-                    BACKGROUND_APP.getDepth(mActivity));
+            ObjectAnimator depthAnimator = ObjectAnimator.ofFloat(depthController.stateDepth,
+                    MULTI_PROPERTY_VALUE, BACKGROUND_APP.getDepth(mActivity));
             anim.play(depthAnimator);
         }
         anim.play(ObjectAnimator.ofFloat(this, TASK_THUMBNAIL_SPLASH_ALPHA, 0f, 1f));
diff --git a/src/com/android/launcher3/allapps/AllAppsTransitionController.java b/src/com/android/launcher3/allapps/AllAppsTransitionController.java
index 001b494..624cfc2 100644
--- a/src/com/android/launcher3/allapps/AllAppsTransitionController.java
+++ b/src/com/android/launcher3/allapps/AllAppsTransitionController.java
@@ -15,6 +15,7 @@
  */
 package com.android.launcher3.allapps;
 
+import static com.android.launcher3.LauncherAnimUtils.VIEW_TRANSLATE_Y;
 import static com.android.launcher3.LauncherState.ALL_APPS;
 import static com.android.launcher3.LauncherState.ALL_APPS_CONTENT;
 import static com.android.launcher3.LauncherState.NORMAL;
@@ -42,6 +43,7 @@
 import com.android.launcher3.statemanager.StateManager.StateHandler;
 import com.android.launcher3.states.StateAnimationConfig;
 import com.android.launcher3.util.MultiPropertyFactory;
+import com.android.launcher3.util.MultiPropertyFactory.MultiProperty;
 import com.android.launcher3.util.MultiValueAlpha;
 import com.android.launcher3.views.ScrimView;
 
@@ -82,8 +84,7 @@
                     if (controller.mIsTablet) {
                         return controller.mAppsView.getActiveRecyclerView().getTranslationY();
                     } else {
-                        return controller.getAppsViewPullbackTranslationY().get(
-                                controller.mAppsView);
+                        return controller.getAppsViewPullbackTranslationY().getValue();
                     }
                 }
 
@@ -92,8 +93,7 @@
                     if (controller.mIsTablet) {
                         controller.mAppsView.getActiveRecyclerView().setTranslationY(translation);
                     } else {
-                        controller.getAppsViewPullbackTranslationY().set(controller.mAppsView,
-                                translation);
+                        controller.getAppsViewPullbackTranslationY().setValue(translation);
                     }
                 }
             };
@@ -140,10 +140,8 @@
 
     private ScrimView mScrimView;
 
-    private final MultiPropertyFactory<View>
-            mAppsViewTranslationYPropertyFactory = new MultiPropertyFactory<>(
-            "appsViewTranslationY", View.TRANSLATION_Y, Float::sum);
     private MultiValueAlpha mAppsViewAlpha;
+    private MultiPropertyFactory<View> mAppsViewTranslationY;
 
     private boolean mIsTablet;
 
@@ -184,7 +182,7 @@
      */
     public void setProgress(float progress) {
         mProgress = progress;
-        getAppsViewProgressTranslationY().set(mAppsView, mProgress * mShiftRange);
+        getAppsViewProgressTranslationY().setValue(mProgress * mShiftRange);
         mLauncher.onAllAppsTransition(1 - progress);
     }
 
@@ -192,20 +190,20 @@
         return mProgress;
     }
 
-    private FloatProperty<View> getAppsViewProgressTranslationY() {
-        return mAppsViewTranslationYPropertyFactory.get(INDEX_APPS_VIEW_PROGRESS);
+    private MultiProperty getAppsViewProgressTranslationY() {
+        return mAppsViewTranslationY.get(INDEX_APPS_VIEW_PROGRESS);
     }
 
-    private FloatProperty<View> getAppsViewPullbackTranslationY() {
-        return mAppsViewTranslationYPropertyFactory.get(INDEX_APPS_VIEW_PULLBACK);
+    private MultiProperty getAppsViewPullbackTranslationY() {
+        return mAppsViewTranslationY.get(INDEX_APPS_VIEW_PULLBACK);
     }
 
-    private MultiValueAlpha.AlphaProperty getAppsViewProgressAlpha() {
-        return mAppsViewAlpha.getProperty(INDEX_APPS_VIEW_PROGRESS);
+    private MultiProperty getAppsViewProgressAlpha() {
+        return mAppsViewAlpha.get(INDEX_APPS_VIEW_PROGRESS);
     }
 
-    private MultiValueAlpha.AlphaProperty getAppsViewPullbackAlpha() {
-        return mAppsViewAlpha.getProperty(INDEX_APPS_VIEW_PULLBACK);
+    private MultiProperty getAppsViewPullbackAlpha() {
+        return mAppsViewAlpha.get(INDEX_APPS_VIEW_PULLBACK);
     }
 
     /**
@@ -283,7 +281,7 @@
         boolean hasAllAppsContent = (visibleElements & ALL_APPS_CONTENT) != 0;
 
         Interpolator allAppsFade = config.getInterpolator(ANIM_ALL_APPS_FADE, LINEAR);
-        setter.setFloat(getAppsViewProgressAlpha(), MultiValueAlpha.VALUE,
+        setter.setFloat(getAppsViewProgressAlpha(), MultiPropertyFactory.MULTI_PROPERTY_VALUE,
                 hasAllAppsContent ? 1 : 0, allAppsFade);
 
         boolean shouldProtectHeader =
@@ -302,8 +300,11 @@
         mScrimView = scrimView;
         mAppsView = appsView;
         mAppsView.setScrimView(scrimView);
+
         mAppsViewAlpha = new MultiValueAlpha(mAppsView, APPS_VIEW_INDEX_COUNT);
         mAppsViewAlpha.setUpdateVisibility(true);
+        mAppsViewTranslationY = new MultiPropertyFactory<>(
+                mAppsView, VIEW_TRANSLATE_Y, APPS_VIEW_INDEX_COUNT, Float::sum);
     }
 
     /**
diff --git a/src/com/android/launcher3/util/MultiPropertyFactory.java b/src/com/android/launcher3/util/MultiPropertyFactory.java
index 43daf08..f34c4c2 100644
--- a/src/com/android/launcher3/util/MultiPropertyFactory.java
+++ b/src/com/android/launcher3/util/MultiPropertyFactory.java
@@ -16,10 +16,13 @@
 
 package com.android.launcher3.util;
 
-import android.util.ArrayMap;
+import android.animation.Animator;
+import android.animation.ObjectAnimator;
 import android.util.FloatProperty;
 import android.util.Log;
-import android.util.Property;
+
+import java.io.PrintWriter;
+import java.util.Arrays;
 
 /**
  * Allows to combine multiple values set by several sources.
@@ -35,15 +38,30 @@
  */
 public class MultiPropertyFactory<T> {
 
+    public static final FloatProperty<MultiPropertyFactory<?>.MultiProperty> MULTI_PROPERTY_VALUE =
+            new FloatProperty<MultiPropertyFactory<?>.MultiProperty>("value") {
+
+                @Override
+                public Float get(MultiPropertyFactory<?>.MultiProperty property) {
+                    return property.mValue;
+                }
+
+                @Override
+                public void setValue(MultiPropertyFactory<?>.MultiProperty property, float value) {
+                    property.setValue(value);
+                }
+            };
+
     private static final boolean DEBUG = false;
     private static final String TAG = "MultiPropertyFactory";
-    private final String mName;
-    private final ArrayMap<Integer, MultiProperty> mProperties = new ArrayMap<>();
+    private final MultiPropertyFactory<?>.MultiProperty[] mProperties;
 
     // This is an optimization for cases when set is called repeatedly with the same setterIndex.
     private float mAggregationOfOthers = 0f;
-    private Integer mLastIndexSet = -1;
-    private final Property<T, Float> mProperty;
+    private int mLastIndexSet = -1;
+
+    protected final T mTarget;
+    private final FloatProperty<T> mProperty;
     private final FloatBiFunction mAggregator;
 
     /**
@@ -56,59 +74,99 @@
         float apply(float a, float b);
     }
 
-    public MultiPropertyFactory(String name, Property<T, Float> property,
+    public MultiPropertyFactory(T target, FloatProperty<T> property, int size,
             FloatBiFunction aggregator) {
-        mName = name;
+        this(target, property, size, aggregator, 0);
+    }
+
+    public MultiPropertyFactory(T target, FloatProperty<T> property, int size,
+            FloatBiFunction aggregator, float defaultPropertyValue) {
+        mTarget = target;
         mProperty = property;
         mAggregator = aggregator;
+
+        mProperties = new MultiPropertyFactory<?>.MultiProperty[size];
+        for (int i = 0; i < size; i++) {
+            mProperties[i] = new MultiProperty(i, defaultPropertyValue);
+        }
     }
 
     /** Returns the [MultiFloatProperty] associated with [inx], creating it if not present. */
-    public MultiProperty get(Integer index) {
-        return mProperties.computeIfAbsent(index,
-                (k) -> new MultiProperty(index, mName + "_" + index));
+    public MultiProperty get(int index) {
+        return (MultiProperty) mProperties[index];
+    }
+
+    @Override
+    public String toString() {
+        return Arrays.deepToString(mProperties);
+    }
+
+    /**
+     * Dumps the alpha channel values to the given PrintWriter
+     *
+     * @param prefix String to be used before every line
+     * @param pw PrintWriter where the logs should be dumped
+     * @param label String used to help identify this object
+     * @param alphaIndexLabels Strings that represent each alpha channel, these should be entered
+     *                         in the order of the indexes they represent, starting from 0.
+     */
+    public void dump(String prefix, PrintWriter pw, String label, String... alphaIndexLabels) {
+        pw.println(prefix + label);
+
+        String innerPrefix = prefix + '\t';
+        for (int i = 0; i < alphaIndexLabels.length; i++) {
+            if (i >= mProperties.length) {
+                pw.println(innerPrefix + alphaIndexLabels[i] + " given for alpha index " + i
+                        + " however there are only " + mProperties.length + " alpha channels.");
+                continue;
+            }
+            pw.println(innerPrefix + alphaIndexLabels[i] + "=" + get(i).getValue());
+        }
     }
 
     /**
      * Each [setValue] will be aggregated with the other properties values created by the
      * corresponding factory.
      */
-    class MultiProperty extends FloatProperty<T> {
-        private final int mInx;
-        private float mValue = 0f;
+    public class MultiProperty {
 
-        MultiProperty(int inx, String name) {
-            super(name);
+        private final int mInx;
+        private final float mDefaultValue;
+        private float mValue;
+
+        MultiProperty(int inx, float defaultValue) {
             mInx = inx;
+            mDefaultValue = defaultValue;
+            mValue = defaultValue;
         }
 
-        @Override
-        public void setValue(T obj, float newValue) {
+        public void setValue(float newValue) {
             if (mLastIndexSet != mInx) {
-                mAggregationOfOthers = 0f;
-                mProperties.forEach((key, property) -> {
-                    if (key != mInx) {
+                mAggregationOfOthers = mDefaultValue;
+                for (MultiPropertyFactory<?>.MultiProperty other : mProperties) {
+                    if (other.mInx != mInx) {
                         mAggregationOfOthers =
-                                mAggregator.apply(mAggregationOfOthers, property.mValue);
+                                mAggregator.apply(mAggregationOfOthers, other.mValue);
                     }
-                });
+                }
+
                 mLastIndexSet = mInx;
             }
             float lastAggregatedValue = mAggregator.apply(mAggregationOfOthers, newValue);
             mValue = newValue;
-            apply(obj, lastAggregatedValue);
+            apply(lastAggregatedValue);
 
             if (DEBUG) {
-                Log.d(TAG, "name=" + mName
-                        + " newValue=" + newValue + " mInx=" + mInx
-                        + " aggregated=" + lastAggregatedValue + " others= " + mProperties);
+                Log.d(TAG, "name=" + mProperty.getName()
+                        + " target=" + mTarget.getClass()
+                        + " newValue=" + newValue
+                        + " mInx=" + mInx
+                        + " aggregated=" + lastAggregatedValue
+                        + " others= " + Arrays.deepToString(mProperties));
             }
         }
 
-        @Override
-        public Float get(T object) {
-            // Callers of MultiProperty should only care about the sub-property that it sets. If
-            // the overall value is needed, mProperty.get should be called directly.
+        public float getValue() {
             return mValue;
         }
 
@@ -116,9 +174,19 @@
         public String toString() {
             return String.valueOf(mValue);
         }
+
+        /**
+         * Creates and returns an Animator from the current value to the given value. Future
+         * animator on the same target automatically cancels the previous one.
+         */
+        public Animator animateToValue(float value) {
+            ObjectAnimator animator = ObjectAnimator.ofFloat(this, MULTI_PROPERTY_VALUE, value);
+            animator.setAutoCancel(true);
+            return animator;
+        }
     }
 
-    protected void apply(T object, float value) {
-        mProperty.set(object, value);
+    protected void apply(float value) {
+        mProperty.set(mTarget, value);
     }
 }
diff --git a/src/com/android/launcher3/util/MultiValueAlpha.java b/src/com/android/launcher3/util/MultiValueAlpha.java
index 4b46a0a..ac016a8 100644
--- a/src/com/android/launcher3/util/MultiValueAlpha.java
+++ b/src/com/android/launcher3/util/MultiValueAlpha.java
@@ -16,62 +16,24 @@
 
 package com.android.launcher3.util;
 
-import android.animation.Animator;
-import android.animation.ObjectAnimator;
-import android.util.FloatProperty;
+import static com.android.launcher3.LauncherAnimUtils.VIEW_ALPHA;
+
 import android.view.View;
 
 import com.android.launcher3.anim.AlphaUpdateListener;
 
-import java.io.PrintWriter;
-import java.util.Arrays;
-import java.util.function.Consumer;
-
 /**
  * Utility class to handle separating a single value as a factor of multiple values
  */
-public class MultiValueAlpha {
+public class MultiValueAlpha extends MultiPropertyFactory<View> {
 
-    public static final FloatProperty<AlphaProperty> VALUE =
-            new FloatProperty<AlphaProperty>("value") {
+    private static final FloatBiFunction ALPHA_AGGREGATOR = (a, b) -> a * b;
 
-                @Override
-                public Float get(AlphaProperty alphaProperty) {
-                    return alphaProperty.mValue;
-                }
-
-                @Override
-                public void setValue(AlphaProperty object, float value) {
-                    object.setValue(value);
-                }
-            };
-
-    private final View mView;
-    private final AlphaProperty[] mMyProperties;
-
-    private int mValidMask;
     // Whether we should change from INVISIBLE to VISIBLE and vice versa at low alpha values.
     private boolean mUpdateVisibility;
 
     public MultiValueAlpha(View view, int size) {
-        mView = view;
-        mMyProperties = new AlphaProperty[size];
-
-        mValidMask = 0;
-        for (int i = 0; i < size; i++) {
-            int myMask = 1 << i;
-            mValidMask |= myMask;
-            mMyProperties[i] = new AlphaProperty(myMask);
-        }
-    }
-
-    @Override
-    public String toString() {
-        return Arrays.toString(mMyProperties);
-    }
-
-    public AlphaProperty getProperty(int index) {
-        return mMyProperties[index];
+        super(view, VIEW_ALPHA, size, ALPHA_AGGREGATOR, 1f);
     }
 
     /** Sets whether we should update between INVISIBLE and VISIBLE based on alpha. */
@@ -79,97 +41,11 @@
         mUpdateVisibility = updateVisibility;
     }
 
-    /**
-     * Dumps the alpha channel values to the given PrintWriter
-     *
-     * @param prefix String to be used before every line
-     * @param pw PrintWriter where the logs should be dumped
-     * @param label String used to help identify this object
-     * @param alphaIndexLabels Strings that represent each alpha channel, these should be entered
-     *                         in the order of the indexes they represent, starting from 0.
-     */
-    public void dump(String prefix, PrintWriter pw, String label, String... alphaIndexLabels) {
-        pw.println(prefix + label);
-
-        String innerPrefix = prefix + '\t';
-        for (int i = 0; i < alphaIndexLabels.length; i++) {
-            if (i >= mMyProperties.length) {
-                pw.println(innerPrefix + alphaIndexLabels[i] + " given for alpha index " + i
-                        + " however there are only " + mMyProperties.length + " alpha channels.");
-                continue;
-            }
-            pw.println(innerPrefix + alphaIndexLabels[i] + "=" + getProperty(i).getValue());
-        }
-    }
-
-    public class AlphaProperty {
-
-        private final int mMyMask;
-
-        private float mValue = 1;
-        // Factor of all other alpha channels, only valid if mMyMask is present in mValidMask.
-        private float mOthers = 1;
-
-        private Consumer<Float> mConsumer;
-
-        AlphaProperty(int myMask) {
-            mMyMask = myMask;
-        }
-
-        public void setValue(float value) {
-            if (mValue == value) {
-                return;
-            }
-
-            if ((mValidMask & mMyMask) == 0) {
-                // Our cache value is not correct, recompute it.
-                mOthers = 1;
-                for (AlphaProperty prop : mMyProperties) {
-                    if (prop != this) {
-                        mOthers *= prop.mValue;
-                    }
-                }
-            }
-
-            // Since we have changed our value, all other caches except our own need to be
-            // recomputed. Change mValidMask to indicate the new valid caches (only our own).
-            mValidMask = mMyMask;
-            mValue = value;
-
-            final float alpha = mOthers * mValue;
-            mView.setAlpha(alpha);
-            if (mUpdateVisibility) {
-                AlphaUpdateListener.updateVisibility(mView);
-            }
-            if (mConsumer != null) {
-                mConsumer.accept(mValue);
-            }
-        }
-
-        public float getValue() {
-            return mValue;
-        }
-
-        public void setConsumer(Consumer<Float> consumer) {
-            mConsumer = consumer;
-            if (mConsumer != null) {
-                mConsumer.accept(mValue);
-            }
-        }
-
-        @Override
-        public String toString() {
-            return Float.toString(mValue);
-        }
-
-        /**
-         * Creates and returns an Animator from the current value to the given value. Future
-         * animator on the same target automatically cancels the previous one.
-         */
-        public Animator animateToValue(float value) {
-            ObjectAnimator animator = ObjectAnimator.ofFloat(this, VALUE, value);
-            animator.setAutoCancel(true);
-            return animator;
+    @Override
+    protected void apply(float value) {
+        super.apply(value);
+        if (mUpdateVisibility) {
+            AlphaUpdateListener.updateVisibility(mTarget);
         }
     }
 }
diff --git a/src/com/android/launcher3/views/BaseDragLayer.java b/src/com/android/launcher3/views/BaseDragLayer.java
index 1e154a2..77992a2 100644
--- a/src/com/android/launcher3/views/BaseDragLayer.java
+++ b/src/com/android/launcher3/views/BaseDragLayer.java
@@ -22,7 +22,6 @@
 
 import static com.android.launcher3.util.window.RefreshRateTracker.getSingleFrameMs;
 
-import android.app.WallpaperManager;
 import android.content.Context;
 import android.graphics.Insets;
 import android.graphics.Rect;
@@ -41,8 +40,8 @@
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.InsettableFrameLayout;
 import com.android.launcher3.Utilities;
+import com.android.launcher3.util.MultiPropertyFactory.MultiProperty;
 import com.android.launcher3.util.MultiValueAlpha;
-import com.android.launcher3.util.MultiValueAlpha.AlphaProperty;
 import com.android.launcher3.util.TouchController;
 
 import java.io.PrintWriter;
@@ -108,7 +107,6 @@
 
     protected final T mActivity;
     private final MultiValueAlpha mMultiValueAlpha;
-    private final WallpaperManager mWallpaperManager;
 
     // All the touch controllers for the view
     protected TouchController[] mControllers;
@@ -121,9 +119,8 @@
 
     public BaseDragLayer(Context context, AttributeSet attrs, int alphaChannelCount) {
         super(context, attrs);
-        mActivity = (T) ActivityContext.lookupContext(context);
+        mActivity = ActivityContext.lookupContext(context);
         mMultiValueAlpha = new MultiValueAlpha(this, alphaChannelCount);
-        mWallpaperManager = context.getSystemService(WallpaperManager.class);
     }
 
     /**
@@ -508,8 +505,8 @@
         return new LayoutParams(p);
     }
 
-    public AlphaProperty getAlphaProperty(int index) {
-        return mMultiValueAlpha.getProperty(index);
+    public MultiProperty getAlphaProperty(int index) {
+        return mMultiValueAlpha.get(index);
     }
 
     public void dump(String prefix, PrintWriter writer) {
diff --git a/tests/src/com/android/launcher3/util/MultiPropertyFactoryTest.kt b/tests/src/com/android/launcher3/util/MultiPropertyFactoryTest.kt
index a4f189c..bf3a092 100644
--- a/tests/src/com/android/launcher3/util/MultiPropertyFactoryTest.kt
+++ b/tests/src/com/android/launcher3/util/MultiPropertyFactoryTest.kt
@@ -39,21 +39,21 @@
         }
     }
 
-    private val factory = MultiPropertyFactory("depth_property", receiveProperty) {
+    private val factory = MultiPropertyFactory(null, receiveProperty, 3) {
         x: Float, y: Float -> x + y
     }
 
-    private val p1 = factory.get(1)
-    private val p2 = factory.get(2)
-    private val p3 = factory.get(3)
+    private val p1 = factory.get(0)
+    private val p2 = factory.get(1)
+    private val p3 = factory.get(2)
 
     @Test
     fun set_sameIndexes_allApplied() {
         val v1 = 50f
         val v2 = 100f
-        p1.set(null, v1)
-        p1.set(null, v1)
-        p1.set(null, v2)
+        p1.value = v1
+        p1.value = v1
+        p1.value = v2
 
         assertThat(received).containsExactly(v1, v1, v2)
     }
@@ -63,9 +63,9 @@
         val v1 = 50f
         val v2 = 100f
         val v3 = 150f
-        p1.set(null, v1)
-        p2.set(null, v2)
-        p3.set(null, v3)
+        p1.value = v1
+        p2.value = v2
+        p3.value = v3
 
         assertThat(received).containsExactly(v1, v1 + v2, v1 + v2 + v3)
     }