diff --git a/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java b/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java
index d6d31c4..8239d5e 100644
--- a/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java
+++ b/quickstep/src/com/android/launcher3/QuickstepTransitionManager.java
@@ -123,6 +123,8 @@
 import com.android.quickstep.util.RectFSpringAnim;
 import com.android.quickstep.util.RemoteAnimationProvider;
 import com.android.quickstep.util.StaggeredWorkspaceAnim;
+import com.android.quickstep.util.SurfaceTransaction;
+import com.android.quickstep.util.SurfaceTransaction.SurfaceProperties;
 import com.android.quickstep.util.SurfaceTransactionApplier;
 import com.android.quickstep.util.WorkspaceRevealAnim;
 import com.android.quickstep.views.FloatingWidgetView;
@@ -135,7 +137,6 @@
 import com.android.systemui.shared.system.RemoteAnimationRunnerCompat;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
 import com.android.systemui.shared.system.RemoteTransitionCompat;
-import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat.SurfaceParams;
 import com.android.wm.shell.startingsurface.IStartingWindowListener;
 
 import java.util.ArrayList;
@@ -815,10 +816,11 @@
                     return;
                 }
 
-                ArrayList<SurfaceParams> params = new ArrayList<>();
+                SurfaceTransaction transaction = new SurfaceTransaction();
+
                 for (int i = appTargets.length - 1; i >= 0; i--) {
                     RemoteAnimationTargetCompat target = appTargets[i];
-                    SurfaceParams.Builder builder = new SurfaceParams.Builder(target.leash);
+                    SurfaceProperties builder = transaction.forSurface(target.leash);
 
                     if (target.mode == MODE_OPENING) {
                         matrix.setScale(scale, scale);
@@ -839,11 +841,11 @@
 
                         floatingView.update(mIconAlpha.value, 255, floatingIconBounds, percent, 0f,
                                 mWindowRadius.value * scale, true /* isOpening */);
-                        builder.withMatrix(matrix)
-                                .withWindowCrop(crop)
-                                .withAlpha(1f - mIconAlpha.value)
-                                .withCornerRadius(mWindowRadius.value)
-                                .withShadowRadius(mShadowRadius.value);
+                        builder.setMatrix(matrix)
+                                .setWindowCrop(crop)
+                                .setAlpha(1f - mIconAlpha.value)
+                                .setCornerRadius(mWindowRadius.value)
+                                .setShadowRadius(mShadowRadius.value);
                     } else if (target.mode == MODE_CLOSING) {
                         if (target.localBounds != null) {
                             final Rect localBounds = target.localBounds;
@@ -863,29 +865,26 @@
                             tmpPos.y = tmp;
                         }
                         matrix.setTranslate(tmpPos.x, tmpPos.y);
-                        builder.withMatrix(matrix)
-                                .withWindowCrop(crop)
-                                .withAlpha(1f);
+                        builder.setMatrix(matrix)
+                                .setWindowCrop(crop)
+                                .setAlpha(1f);
                     }
-                    params.add(builder.build());
                 }
 
                 if (navBarTarget != null) {
-                    final SurfaceParams.Builder navBuilder =
-                            new SurfaceParams.Builder(navBarTarget.leash);
+                    SurfaceProperties navBuilder =
+                            transaction.forSurface(navBarTarget.leash);
                     if (mNavFadeIn.value > mNavFadeIn.getStartValue()) {
                         matrix.setScale(scale, scale);
                         matrix.postTranslate(windowTransX0, windowTransY0);
-                        navBuilder.withMatrix(matrix)
-                                .withWindowCrop(crop)
-                                .withAlpha(mNavFadeIn.value);
+                        navBuilder.setMatrix(matrix)
+                                .setWindowCrop(crop)
+                                .setAlpha(mNavFadeIn.value);
                     } else {
-                        navBuilder.withAlpha(mNavFadeOut.value);
+                        navBuilder.setAlpha(mNavFadeOut.value);
                     }
-                    params.add(navBuilder.build());
                 }
-
-                surfaceApplier.scheduleApply(params.toArray(new SurfaceParams[params.size()]));
+                surfaceApplier.scheduleApply(transaction);
             }
         };
         appAnimator.addUpdateListener(listener);
@@ -1001,37 +1000,33 @@
                 matrix.postScale(mAppWindowScale, mAppWindowScale, widgetBackgroundBounds.left,
                         widgetBackgroundBounds.top);
 
-                ArrayList<SurfaceParams> params = new ArrayList<>();
+                SurfaceTransaction transaction = new SurfaceTransaction();
                 float floatingViewAlpha = appTargetsAreTranslucent ? 1 - mPreviewAlpha.value : 1;
                 for (int i = appTargets.length - 1; i >= 0; i--) {
                     RemoteAnimationTargetCompat target = appTargets[i];
-                    SurfaceParams.Builder builder = new SurfaceParams.Builder(target.leash);
+                    SurfaceProperties builder = transaction.forSurface(target.leash);
                     if (target.mode == MODE_OPENING) {
                         floatingView.update(widgetBackgroundBounds, floatingViewAlpha,
                                 mWidgetForegroundAlpha.value, mWidgetFallbackBackgroundAlpha.value,
                                 mCornerRadiusProgress.value);
-                        builder.withMatrix(matrix)
-                                .withWindowCrop(appWindowCrop)
-                                .withAlpha(mPreviewAlpha.value)
-                                .withCornerRadius(mWindowRadius.value / mAppWindowScale);
+                        builder.setMatrix(matrix)
+                                .setWindowCrop(appWindowCrop)
+                                .setAlpha(mPreviewAlpha.value)
+                                .setCornerRadius(mWindowRadius.value / mAppWindowScale);
                     }
-                    params.add(builder.build());
                 }
 
                 if (navBarTarget != null) {
-                    final SurfaceParams.Builder navBuilder =
-                            new SurfaceParams.Builder(navBarTarget.leash);
+                    SurfaceProperties navBuilder = transaction.forSurface(navBarTarget.leash);
                     if (mNavFadeIn.value > mNavFadeIn.getStartValue()) {
-                        navBuilder.withMatrix(matrix)
-                                .withWindowCrop(appWindowCrop)
-                                .withAlpha(mNavFadeIn.value);
+                        navBuilder.setMatrix(matrix)
+                                .setWindowCrop(appWindowCrop)
+                                .setAlpha(mNavFadeIn.value);
                     } else {
-                        navBuilder.withAlpha(mNavFadeOut.value);
+                        navBuilder.setAlpha(mNavFadeOut.value);
                     }
-                    params.add(navBuilder.build());
                 }
-
-                surfaceApplier.scheduleApply(params.toArray(new SurfaceParams[params.size()]));
+                surfaceApplier.scheduleApply(transaction);
             }
         });
 
@@ -1226,16 +1221,15 @@
         unlockAnimator.addListener(new AnimatorListenerAdapter() {
             @Override
             public void onAnimationStart(Animator animation) {
-                SurfaceParams[] params = new SurfaceParams[appTargets.length];
+                SurfaceTransaction transaction = new SurfaceTransaction();
                 for (int i = appTargets.length - 1; i >= 0; i--) {
                     RemoteAnimationTargetCompat target = appTargets[i];
-                    params[i] = new SurfaceParams.Builder(target.leash)
-                            .withAlpha(1f)
-                            .withWindowCrop(target.screenSpaceBounds)
-                            .withCornerRadius(cornerRadius)
-                            .build();
+                    transaction.forSurface(target.leash)
+                            .setAlpha(1f)
+                            .setWindowCrop(target.screenSpaceBounds)
+                            .setCornerRadius(cornerRadius);
                 }
-                surfaceApplier.scheduleApply(params);
+                surfaceApplier.scheduleApply(transaction);
             }
         });
         return unlockAnimator;
@@ -1453,10 +1447,10 @@
 
             @Override
             public void onUpdate(float percent, boolean initOnly) {
-                SurfaceParams[] params = new SurfaceParams[appTargets.length];
+                SurfaceTransaction transaction = new SurfaceTransaction();
                 for (int i = appTargets.length - 1; i >= 0; i--) {
                     RemoteAnimationTargetCompat target = appTargets[i];
-                    SurfaceParams.Builder builder = new SurfaceParams.Builder(target.leash);
+                    SurfaceProperties builder = transaction.forSurface(target.leash);
 
                     if (target.localBounds != null) {
                         tmpPos.set(target.localBounds.left, target.localBounds.top);
@@ -1478,20 +1472,19 @@
                                 tmpRect.centerY());
                         matrix.postTranslate(0, mDy.value);
                         matrix.postTranslate(tmpPos.x, tmpPos.y);
-                        builder.withMatrix(matrix)
-                                .withWindowCrop(crop)
-                                .withAlpha(mAlpha.value)
-                                .withCornerRadius(windowCornerRadius)
-                                .withShadowRadius(mShadowRadius.value);
+                        builder.setMatrix(matrix)
+                                .setWindowCrop(crop)
+                                .setAlpha(mAlpha.value)
+                                .setCornerRadius(windowCornerRadius)
+                                .setShadowRadius(mShadowRadius.value);
                     } else if (target.mode == MODE_OPENING) {
                         matrix.setTranslate(tmpPos.x, tmpPos.y);
-                        builder.withMatrix(matrix)
-                                .withWindowCrop(crop)
-                                .withAlpha(1f);
+                        builder.setMatrix(matrix)
+                                .setWindowCrop(crop)
+                                .setAlpha(1f);
                     }
-                    params[i] = builder.build();
                 }
-                surfaceApplier.scheduleApply(params);
+                surfaceApplier.scheduleApply(transaction);
             }
         });
 
@@ -1861,10 +1854,10 @@
 
         @Override
         public void onUpdate(RectF currentRectF, float progress) {
-            SurfaceParams[] params = new SurfaceParams[mAppTargets.length];
+            SurfaceTransaction transaction = new SurfaceTransaction();
             for (int i = mAppTargets.length - 1; i >= 0; i--) {
                 RemoteAnimationTargetCompat target = mAppTargets[i];
-                SurfaceParams.Builder builder = new SurfaceParams.Builder(target.leash);
+                SurfaceProperties builder = transaction.forSurface(target.leash);
 
                 if (target.localBounds != null) {
                     mTmpPos.set(target.localBounds.left, target.localBounds.top);
@@ -1899,18 +1892,17 @@
                     mMatrix.setScale(scale, scale);
                     mMatrix.postTranslate(mCurrentRect.left, mCurrentRect.top);
 
-                    builder.withMatrix(mMatrix)
-                            .withWindowCrop(mTmpRect)
-                            .withAlpha(getWindowAlpha(progress))
-                            .withCornerRadius(getCornerRadius(progress) / scale);
+                    builder.setMatrix(mMatrix)
+                            .setWindowCrop(mTmpRect)
+                            .setAlpha(getWindowAlpha(progress))
+                            .setCornerRadius(getCornerRadius(progress) / scale);
                 } else if (target.mode == MODE_OPENING) {
                     mMatrix.setTranslate(mTmpPos.x, mTmpPos.y);
-                    builder.withMatrix(mMatrix)
-                            .withAlpha(1f);
+                    builder.setMatrix(mMatrix)
+                            .setAlpha(1f);
                 }
-                params[i] = builder.build();
             }
-            mSurfaceApplier.scheduleApply(params);
+            mSurfaceApplier.scheduleApply(transaction);
         }
 
         protected float getWindowAlpha(float progress) {
diff --git a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
index 07ddcc8..d728b75 100644
--- a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
+++ b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
@@ -116,6 +116,7 @@
 import com.android.quickstep.util.RecentsOrientedState;
 import com.android.quickstep.util.RectFSpringAnim;
 import com.android.quickstep.util.StaggeredWorkspaceAnim;
+import com.android.quickstep.util.SurfaceTransaction;
 import com.android.quickstep.util.SurfaceTransactionApplier;
 import com.android.quickstep.util.SwipePipToHomeAnimator;
 import com.android.quickstep.util.TaskViewSimulator;
@@ -128,8 +129,6 @@
 import com.android.systemui.shared.system.InputConsumerController;
 import com.android.systemui.shared.system.InteractionJankMonitorWrapper;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
-import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat;
-import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat.SurfaceParams;
 import com.android.systemui.shared.system.TaskStackChangeListener;
 import com.android.systemui.shared.system.TaskStackChangeListeners;
 import com.android.wm.shell.common.TransactionPool;
@@ -2108,16 +2107,13 @@
 
                 // When revealing the app with launcher splash screen, make the app visible
                 // and behind the splash view before the splash is animated away.
-                SyncRtSurfaceTransactionApplierCompat surfaceApplier =
-                        new SyncRtSurfaceTransactionApplierCompat(splashView);
-                ArrayList<SurfaceParams> params = new ArrayList<>();
+                SurfaceTransactionApplier surfaceApplier =
+                        new SurfaceTransactionApplier(splashView);
+                SurfaceTransaction transaction = new SurfaceTransaction();
                 for (RemoteAnimationTargetCompat target : appearedTaskTargets) {
-                    SurfaceParams.Builder builder = new SurfaceParams.Builder(target.leash);
-                    builder.withAlpha(1);
-                    builder.withLayer(-1);
-                    params.add(builder.build());
+                    transaction.forSurface(target.leash).setAlpha(1).setLayer(-1);
                 }
-                surfaceApplier.scheduleApply(params.toArray(new SurfaceParams[0]));
+                surfaceApplier.scheduleApply(transaction);
 
                 SplashScreenExitAnimationUtils.startAnimations(splashView, taskTarget.leash,
                         mSplashMainWindowShiftLength, new TransactionPool(), new Rect(),
diff --git a/quickstep/src/com/android/quickstep/FallbackSwipeHandler.java b/quickstep/src/com/android/quickstep/FallbackSwipeHandler.java
index 99f7bdd..e55e966 100644
--- a/quickstep/src/com/android/quickstep/FallbackSwipeHandler.java
+++ b/quickstep/src/com/android/quickstep/FallbackSwipeHandler.java
@@ -65,12 +65,12 @@
 import com.android.quickstep.fallback.FallbackRecentsView;
 import com.android.quickstep.fallback.RecentsState;
 import com.android.quickstep.util.RectFSpringAnim;
+import com.android.quickstep.util.SurfaceTransaction.SurfaceProperties;
 import com.android.quickstep.util.TransformParams;
 import com.android.quickstep.util.TransformParams.BuilderProxy;
 import com.android.systemui.shared.recents.model.Task.TaskKey;
 import com.android.systemui.shared.system.InputConsumerController;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
-import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat.SurfaceParams;
 
 import java.lang.ref.WeakReference;
 import java.util.ArrayList;
@@ -125,18 +125,18 @@
         }
     }
 
-    private void updateHomeActivityTransformDuringSwipeUp(SurfaceParams.Builder builder,
+    private void updateHomeActivityTransformDuringSwipeUp(SurfaceProperties builder,
             RemoteAnimationTargetCompat app, TransformParams params) {
         setHomeScaleAndAlpha(builder, app, mCurrentShift.value,
                 Utilities.boundToRange(1 - mCurrentShift.value, 0, 1));
     }
 
-    private void setHomeScaleAndAlpha(SurfaceParams.Builder builder,
+    private void setHomeScaleAndAlpha(SurfaceProperties builder,
             RemoteAnimationTargetCompat app, float verticalShift, float alpha) {
         float scale = Utilities.mapRange(verticalShift, 1, mMaxLauncherScale);
         mTmpMatrix.setScale(scale, scale,
                 app.localBounds.exactCenterX(), app.localBounds.exactCenterY());
-        builder.withMatrix(mTmpMatrix).withAlpha(alpha);
+        builder.setMatrix(mTmpMatrix).setAlpha(alpha);
     }
 
     @Override
@@ -279,12 +279,12 @@
             return mTargetRect;
         }
 
-        private void updateRecentsActivityTransformDuringHomeAnim(SurfaceParams.Builder builder,
+        private void updateRecentsActivityTransformDuringHomeAnim(SurfaceProperties builder,
                 RemoteAnimationTargetCompat app, TransformParams params) {
-            builder.withAlpha(mRecentsAlpha.value);
+            builder.setAlpha(mRecentsAlpha.value);
         }
 
-        private void updateHomeActivityTransformDuringHomeAnim(SurfaceParams.Builder builder,
+        private void updateHomeActivityTransformDuringHomeAnim(SurfaceProperties builder,
                 RemoteAnimationTargetCompat app, TransformParams params) {
             setHomeScaleAndAlpha(builder, app, mVerticalShiftForScale.value, mHomeAlpha.value);
         }
diff --git a/quickstep/src/com/android/quickstep/LauncherBackAnimationController.java b/quickstep/src/com/android/quickstep/LauncherBackAnimationController.java
index 7a281dd..ee3b075 100644
--- a/quickstep/src/com/android/quickstep/LauncherBackAnimationController.java
+++ b/quickstep/src/com/android/quickstep/LauncherBackAnimationController.java
@@ -46,7 +46,6 @@
 import com.android.quickstep.util.RectFSpringAnim;
 import com.android.systemui.shared.system.QuickStepContract;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
-import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat;
 
 /**
  * Controls the animation of swiping back and returning to launcher.
@@ -242,20 +241,17 @@
 
     /** Transform the target window to match the target rect. */
     private void applyTransform(RectF targetRect, float cornerRadius) {
-        SyncRtSurfaceTransactionApplierCompat.SurfaceParams.Builder builder =
-                new SyncRtSurfaceTransactionApplierCompat.SurfaceParams.Builder(mBackTarget.leash);
         final float scale = targetRect.width() / mStartRect.width();
         mTransformMatrix.reset();
         mTransformMatrix.setScale(scale, scale);
         mTransformMatrix.postTranslate(targetRect.left, targetRect.top);
-        builder.withMatrix(mTransformMatrix)
-                .withWindowCrop(mStartRect)
-                .withCornerRadius(cornerRadius);
-        SyncRtSurfaceTransactionApplierCompat.SurfaceParams surfaceParams = builder.build();
 
-        if (surfaceParams.surface.isValid()) {
-            surfaceParams.applyTo(mTransaction);
+        if (mBackTarget.leash.isValid()) {
+            mTransaction.setMatrix(mBackTarget.leash, mTransformMatrix, new float[9]);
+            mTransaction.setWindowCrop(mBackTarget.leash, mStartRect);
+            mTransaction.setCornerRadius(mBackTarget.leash, cornerRadius);
         }
+
         mTransaction.apply();
     }
 
diff --git a/quickstep/src/com/android/quickstep/SwipeUpAnimationLogic.java b/quickstep/src/com/android/quickstep/SwipeUpAnimationLogic.java
index baeb514..71e8a77 100644
--- a/quickstep/src/com/android/quickstep/SwipeUpAnimationLogic.java
+++ b/quickstep/src/com/android/quickstep/SwipeUpAnimationLogic.java
@@ -37,11 +37,11 @@
 import com.android.quickstep.RemoteTargetGluer.RemoteTargetHandle;
 import com.android.quickstep.util.AnimatorControllerWithResistance;
 import com.android.quickstep.util.RectFSpringAnim;
+import com.android.quickstep.util.SurfaceTransaction.SurfaceProperties;
 import com.android.quickstep.util.TaskViewSimulator;
 import com.android.quickstep.util.TransformParams;
 import com.android.quickstep.util.TransformParams.BuilderProxy;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
-import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat.SurfaceParams.Builder;
 
 import java.util.Arrays;
 import java.util.function.Consumer;
@@ -335,11 +335,11 @@
         }
 
         @Override
-        public void onBuildTargetParams(
-                Builder builder, RemoteAnimationTargetCompat app, TransformParams params) {
-            builder.withMatrix(mMatrix)
-                    .withWindowCrop(mCropRect)
-                    .withCornerRadius(params.getCornerRadius());
+        public void onBuildTargetParams(SurfaceProperties builder, RemoteAnimationTargetCompat app,
+                TransformParams params) {
+            builder.setMatrix(mMatrix)
+                    .setWindowCrop(mCropRect)
+                    .setCornerRadius(params.getCornerRadius());
         }
 
         @Override
diff --git a/quickstep/src/com/android/quickstep/TaskViewUtils.java b/quickstep/src/com/android/quickstep/TaskViewUtils.java
index df80e2f..bfebbbc 100644
--- a/quickstep/src/com/android/quickstep/TaskViewUtils.java
+++ b/quickstep/src/com/android/quickstep/TaskViewUtils.java
@@ -70,6 +70,8 @@
 import com.android.launcher3.util.DisplayController;
 import com.android.quickstep.RemoteTargetGluer.RemoteTargetHandle;
 import com.android.quickstep.util.MultiValueUpdateListener;
+import com.android.quickstep.util.SurfaceTransaction;
+import com.android.quickstep.util.SurfaceTransaction.SurfaceProperties;
 import com.android.quickstep.util.SurfaceTransactionApplier;
 import com.android.quickstep.util.TaskViewSimulator;
 import com.android.quickstep.util.TransformParams;
@@ -80,7 +82,6 @@
 import com.android.systemui.shared.recents.model.Task;
 import com.android.systemui.shared.system.InteractionJankMonitorWrapper;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
-import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat.SurfaceParams;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -250,21 +251,24 @@
 
                     @Override
                     public void onUpdate(float percent, boolean initOnly) {
-                        final SurfaceParams.Builder navBuilder =
-                                new SurfaceParams.Builder(navBarTarget.leash);
+
 
                         // TODO Do we need to operate over multiple TVSs for the navbar leash?
                         for (RemoteTargetHandle handle : remoteTargetHandles) {
+                            SurfaceTransaction transaction = new SurfaceTransaction();
+                            SurfaceProperties navBuilder =
+                                    transaction.forSurface(navBarTarget.leash);
+
                             if (mNavFadeIn.value > mNavFadeIn.getStartValue()) {
                                 TaskViewSimulator taskViewSimulator = handle.getTaskViewSimulator();
                                 taskViewSimulator.getCurrentCropRect().round(cropRect);
-                                navBuilder.withMatrix(taskViewSimulator.getCurrentMatrix())
-                                        .withWindowCrop(cropRect)
-                                        .withAlpha(mNavFadeIn.value);
+                                navBuilder.setMatrix(taskViewSimulator.getCurrentMatrix())
+                                        .setWindowCrop(cropRect)
+                                        .setAlpha(mNavFadeIn.value);
                             } else {
-                                navBuilder.withAlpha(mNavFadeOut.value);
+                                navBuilder.setAlpha(mNavFadeOut.value);
                             }
-                            handle.getTransformParams().applySurfaceParams(navBuilder.build());
+                            handle.getTransformParams().applySurfaceParams(transaction);
                         }
                     }
                 });
@@ -480,7 +484,7 @@
      * If {@param launchingTaskView} is not null, then this will play the tasks launch animation
      * from the position of the GroupedTaskView (when user taps on the TaskView to start it).
      * Technically this case should be taken care of by
-     * {@link #composeRecentsSplitLaunchAnimatorLegacy()} below, but the way we launch tasks whether
+     * {@link #composeRecentsSplitLaunchAnimatorLegacy} below, but the way we launch tasks whether
      * it's a single task or multiple tasks results in different entry-points.
      *
      * If it is null, then it will simply fade in the starting apps and fade out launcher (for the
diff --git a/quickstep/src/com/android/quickstep/inputconsumers/DeviceLockedInputConsumer.java b/quickstep/src/com/android/quickstep/inputconsumers/DeviceLockedInputConsumer.java
index 6bc24f2..c131c05 100644
--- a/quickstep/src/com/android/quickstep/inputconsumers/DeviceLockedInputConsumer.java
+++ b/quickstep/src/com/android/quickstep/inputconsumers/DeviceLockedInputConsumer.java
@@ -53,13 +53,13 @@
 import com.android.quickstep.RecentsAnimationDeviceState;
 import com.android.quickstep.RecentsAnimationTargets;
 import com.android.quickstep.TaskAnimationManager;
+import com.android.quickstep.util.SurfaceTransaction.SurfaceProperties;
 import com.android.quickstep.util.TransformParams;
 import com.android.quickstep.util.TransformParams.BuilderProxy;
 import com.android.systemui.shared.recents.model.ThumbnailData;
 import com.android.systemui.shared.system.ActivityManagerWrapper;
 import com.android.systemui.shared.system.InputMonitorCompat;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
-import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat.SurfaceParams.Builder;
 
 import java.util.HashMap;
 
@@ -290,9 +290,9 @@
 
     @Override
     public void onBuildTargetParams(
-            Builder builder, RemoteAnimationTargetCompat app, TransformParams params) {
+            SurfaceProperties builder, RemoteAnimationTargetCompat app, TransformParams params) {
         mMatrix.setTranslate(0, mProgress.value * mMaxTranslationY);
-        builder.withMatrix(mMatrix);
+        builder.setMatrix(mMatrix);
     }
 
     @Override
diff --git a/quickstep/src/com/android/quickstep/interaction/SwipeUpGestureTutorialController.java b/quickstep/src/com/android/quickstep/interaction/SwipeUpGestureTutorialController.java
index fa7bc04..d7ff0be 100644
--- a/quickstep/src/com/android/quickstep/interaction/SwipeUpGestureTutorialController.java
+++ b/quickstep/src/com/android/quickstep/interaction/SwipeUpGestureTutorialController.java
@@ -33,7 +33,6 @@
 import android.graphics.Rect;
 import android.graphics.RectF;
 import android.os.Build;
-import android.view.SurfaceControl;
 import android.view.View;
 import android.view.ViewOutlineProvider;
 
@@ -53,9 +52,11 @@
 import com.android.quickstep.RemoteTargetGluer;
 import com.android.quickstep.SwipeUpAnimationLogic;
 import com.android.quickstep.SwipeUpAnimationLogic.RunningWindowAnim;
+import com.android.quickstep.util.RecordingSurfaceTransaction;
 import com.android.quickstep.util.RectFSpringAnim;
+import com.android.quickstep.util.SurfaceTransaction;
+import com.android.quickstep.util.SurfaceTransaction.MockProperties;
 import com.android.quickstep.util.TransformParams;
-import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat.SurfaceParams;
 
 @TargetApi(Build.VERSION_CODES.R)
 abstract class SwipeUpGestureTutorialController extends TutorialController {
@@ -415,21 +416,23 @@
     private class FakeTransformParams extends TransformParams {
 
         @Override
-        public SurfaceParams[] createSurfaceParams(BuilderProxy proxy) {
-            SurfaceParams.Builder builder = new SurfaceParams.Builder((SurfaceControl) null);
-            proxy.onBuildTargetParams(builder, null, this);
-            return new SurfaceParams[] {builder.build()};
+        public SurfaceTransaction createSurfaceParams(BuilderProxy proxy) {
+            RecordingSurfaceTransaction transaction = new RecordingSurfaceTransaction();
+            proxy.onBuildTargetParams(transaction.mockProperties, null, this);
+            return transaction;
         }
 
         @Override
-        public void applySurfaceParams(SurfaceParams[] params) {
-            SurfaceParams p = params[0];
-            mFakeTaskView.setAnimationMatrix(p.matrix);
-            mFakePreviousTaskView.setAnimationMatrix(p.matrix);
-            mFakeTaskViewRect.set(p.windowCrop);
-            mFakeTaskViewRadius = p.cornerRadius;
-            mFakeTaskView.invalidateOutline();
-            mFakePreviousTaskView.invalidateOutline();
+        public void applySurfaceParams(SurfaceTransaction params) {
+            if (params instanceof RecordingSurfaceTransaction) {
+                MockProperties p = ((RecordingSurfaceTransaction) params).mockProperties;
+                mFakeTaskView.setAnimationMatrix(p.matrix);
+                mFakePreviousTaskView.setAnimationMatrix(p.matrix);
+                mFakeTaskViewRect.set(p.windowCrop);
+                mFakeTaskViewRadius = p.cornerRadius;
+                mFakeTaskView.invalidateOutline();
+                mFakePreviousTaskView.invalidateOutline();
+            }
         }
     }
 }
diff --git a/quickstep/src/com/android/quickstep/util/RecordingSurfaceTransaction.java b/quickstep/src/com/android/quickstep/util/RecordingSurfaceTransaction.java
new file mode 100644
index 0000000..a2f48dd
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/util/RecordingSurfaceTransaction.java
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.quickstep.util;
+
+/**
+ * Extension for {@link SurfaceTransaction} which records the commands for mocking
+ */
+public class RecordingSurfaceTransaction extends SurfaceTransaction {
+
+    /**
+     * A mock builder which can be used for recording values
+     */
+    public final MockProperties mockProperties = new MockProperties();
+
+}
diff --git a/quickstep/src/com/android/quickstep/util/RemoteFadeOutAnimationListener.java b/quickstep/src/com/android/quickstep/util/RemoteFadeOutAnimationListener.java
index 81c124f..b2e159e 100644
--- a/quickstep/src/com/android/quickstep/util/RemoteFadeOutAnimationListener.java
+++ b/quickstep/src/com/android/quickstep/util/RemoteFadeOutAnimationListener.java
@@ -19,10 +19,10 @@
 
 import android.animation.ValueAnimator;
 import android.animation.ValueAnimator.AnimatorUpdateListener;
+import android.view.SurfaceControl.Transaction;
 
 import com.android.quickstep.RemoteAnimationTargets;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
-import com.android.systemui.shared.system.TransactionCompat;
 
 /**
  * Animation listener which fades out the closing targets
@@ -40,7 +40,7 @@
 
     @Override
     public void onAnimationUpdate(ValueAnimator valueAnimator) {
-        TransactionCompat t = new TransactionCompat();
+        Transaction t = new Transaction();
         if (mFirstFrame) {
             for (RemoteAnimationTargetCompat target : mTarget.unfilteredApps) {
                 t.show(target.leash);
diff --git a/quickstep/src/com/android/quickstep/util/SurfaceTransaction.java b/quickstep/src/com/android/quickstep/util/SurfaceTransaction.java
new file mode 100644
index 0000000..7ab285d
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/util/SurfaceTransaction.java
@@ -0,0 +1,161 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.quickstep.util;
+
+import android.graphics.Matrix;
+import android.graphics.Rect;
+import android.view.SurfaceControl;
+import android.view.SurfaceControl.Transaction;
+
+/**
+ * Helper class for building a {@link Transaction}.
+ */
+public class SurfaceTransaction {
+
+    private final Transaction mTransaction = new Transaction();
+    private final float[] mTmpValues = new float[9];
+
+    /**
+     * Creates a new builder for the provided surface
+     */
+    public SurfaceProperties forSurface(SurfaceControl surface) {
+        return surface.isValid() ? new SurfaceProperties(surface) : new MockProperties();
+    }
+
+    /**
+     * Returns the final transaction
+     */
+    public Transaction getTransaction() {
+        return mTransaction;
+    }
+
+    /**
+     * Utility class to update surface params in a transaction
+     */
+    public class SurfaceProperties {
+
+        private final SurfaceControl mSurface;
+
+        SurfaceProperties(SurfaceControl surface) {
+            mSurface = surface;
+        }
+
+        /**
+         * @param alpha The alpha value to apply to the surface.
+         * @return this Builder
+         */
+        public SurfaceProperties setAlpha(float alpha) {
+            mTransaction.setAlpha(mSurface, alpha);
+            return this;
+        }
+
+        /**
+         * @param matrix The matrix to apply to the surface.
+         * @return this Builder
+         */
+        public SurfaceProperties setMatrix(Matrix matrix) {
+            mTransaction.setMatrix(mSurface, matrix, mTmpValues);
+            return this;
+        }
+
+        /**
+         * @param windowCrop The window crop to apply to the surface.
+         * @return this Builder
+         */
+        public SurfaceProperties setWindowCrop(Rect windowCrop) {
+            mTransaction.setWindowCrop(mSurface, windowCrop);
+            return this;
+        }
+
+        /**
+         * @param relativeLayer The relative layer.
+         * @return this Builder
+         */
+        public SurfaceProperties setLayer(int relativeLayer) {
+            mTransaction.setLayer(mSurface, relativeLayer);
+            return this;
+        }
+
+        /**
+         * @param radius the Radius for rounded corners to apply to the surface.
+         * @return this Builder
+         */
+        public SurfaceProperties setCornerRadius(float radius) {
+            mTransaction.setCornerRadius(mSurface, radius);
+            return this;
+        }
+
+        /**
+         * @param radius the Radius for the shadows to apply to the surface.
+         * @return this Builder
+         */
+        public SurfaceProperties setShadowRadius(float radius) {
+            mTransaction.setShadowRadius(mSurface, radius);
+            return this;
+        }
+    }
+
+    /**
+     * Extension of {@link SurfaceProperties} which just stores all the values locally
+     */
+    public class MockProperties extends SurfaceProperties {
+
+        public float alpha = -1;
+        public Matrix matrix = null;
+        public Rect windowCrop = null;
+        public float cornerRadius = 0;
+        public float shadowRadius = 0;
+
+        protected MockProperties() {
+            super(null);
+        }
+
+        @Override
+        public SurfaceProperties setAlpha(float alpha) {
+            this.alpha = alpha;
+            return this;
+        }
+
+        @Override
+        public SurfaceProperties setMatrix(Matrix matrix) {
+            this.matrix = matrix;
+            return this;
+        }
+
+        @Override
+        public SurfaceProperties setWindowCrop(Rect windowCrop) {
+            this.windowCrop = windowCrop;
+            return this;
+        }
+
+        @Override
+        public SurfaceProperties setLayer(int relativeLayer) {
+            return this;
+        }
+
+        @Override
+        public SurfaceProperties setCornerRadius(float radius) {
+            this.cornerRadius = radius;
+            return this;
+        }
+
+        @Override
+        public SurfaceProperties setShadowRadius(float radius) {
+            this.shadowRadius = radius;
+            return this;
+        }
+    }
+}
diff --git a/quickstep/src/com/android/quickstep/util/SurfaceTransactionApplier.java b/quickstep/src/com/android/quickstep/util/SurfaceTransactionApplier.java
index 1200208..95473dc 100644
--- a/quickstep/src/com/android/quickstep/util/SurfaceTransactionApplier.java
+++ b/quickstep/src/com/android/quickstep/util/SurfaceTransactionApplier.java
@@ -25,7 +25,6 @@
 import android.view.ViewRootImpl;
 
 import com.android.quickstep.RemoteAnimationTargets.ReleaseCheck;
-import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat.SurfaceParams;
 
 import java.util.function.Consumer;
 
@@ -70,18 +69,12 @@
      * @param params The surface parameters to apply. DO NOT MODIFY the list after passing into
      *               this method to avoid synchronization issues.
      */
-    public void scheduleApply(final SurfaceParams... params) {
+    public void scheduleApply(SurfaceTransaction params) {
         View view = mTargetViewRootImpl.getView();
         if (view == null) {
             return;
         }
-        Transaction t = new Transaction();
-        for (int i = params.length - 1; i >= 0; i--) {
-            SurfaceParams surfaceParams = params[i];
-            if (surfaceParams.surface.isValid()) {
-                surfaceParams.applyTo(t);
-            }
-        }
+        Transaction t = params.getTransaction();
 
         mLastSequenceNumber++;
         final int toApplySeqNo = mLastSequenceNumber;
@@ -102,7 +95,7 @@
     }
 
     /**
-     * Creates an instance of SyncRtSurfaceTransactionApplier, deferring until the target view is
+     * Creates an instance of SurfaceTransactionApplier, deferring until the target view is
      * attached if necessary.
      */
     public static void create(
diff --git a/quickstep/src/com/android/quickstep/util/TaskViewSimulator.java b/quickstep/src/com/android/quickstep/util/TaskViewSimulator.java
index c03aa3f..ff612f5 100644
--- a/quickstep/src/com/android/quickstep/util/TaskViewSimulator.java
+++ b/quickstep/src/com/android/quickstep/util/TaskViewSimulator.java
@@ -46,11 +46,11 @@
 import com.android.quickstep.AnimatedFloat;
 import com.android.quickstep.BaseActivityInterface;
 import com.android.quickstep.TaskAnimationManager;
+import com.android.quickstep.util.SurfaceTransaction.SurfaceProperties;
 import com.android.quickstep.views.TaskView.FullscreenDrawParams;
 import com.android.systemui.shared.recents.model.ThumbnailData;
 import com.android.systemui.shared.recents.utilities.PreviewPositionHelper;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
-import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat.SurfaceParams.Builder;
 
 /**
  * A utility class which emulates the layout behavior of TaskView and RecentsView
@@ -386,10 +386,10 @@
 
     @Override
     public void onBuildTargetParams(
-            Builder builder, RemoteAnimationTargetCompat app, TransformParams params) {
-        builder.withMatrix(mMatrix)
-                .withWindowCrop(mTmpCropRect)
-                .withCornerRadius(getCurrentCornerRadius());
+            SurfaceProperties builder, RemoteAnimationTargetCompat app, TransformParams params) {
+        builder.setMatrix(mMatrix)
+                .setWindowCrop(mTmpCropRect)
+                .setCornerRadius(getCurrentCornerRadius());
 
         // If mDrawsBelowRecents is unset, no reordering will be enforced.
         if (mDrawsBelowRecents != null) {
@@ -398,7 +398,7 @@
             // conflict with layers that WM core positions (ie. the input consumers).  For shell
             // transitions, the animation leashes are reparented to an animation container so we
             // can bump layers as needed.
-            builder.withLayer(mDrawsBelowRecents
+            builder.setLayer(mDrawsBelowRecents
                     ? Integer.MIN_VALUE + 1
                     : ENABLE_SHELL_TRANSITIONS ? Integer.MAX_VALUE : 0);
         }
diff --git a/quickstep/src/com/android/quickstep/util/TransformParams.java b/quickstep/src/com/android/quickstep/util/TransformParams.java
index a7f25d4..3d505c6 100644
--- a/quickstep/src/com/android/quickstep/util/TransformParams.java
+++ b/quickstep/src/com/android/quickstep/util/TransformParams.java
@@ -21,10 +21,8 @@
 import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.Interpolators;
 import com.android.quickstep.RemoteAnimationTargets;
+import com.android.quickstep.util.SurfaceTransaction.SurfaceProperties;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
-import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat;
-import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat.SurfaceParams;
-import com.android.systemui.shared.system.TransactionCompat;
 
 public class TransformParams {
 
@@ -113,8 +111,7 @@
      * Sets the SyncRtSurfaceTransactionApplierCompat that will apply the SurfaceParams that
      * are computed based on these TransformParams.
      */
-    public TransformParams setSyncTransactionApplier(
-            SurfaceTransactionApplier applier) {
+    public TransformParams setSyncTransactionApplier(SurfaceTransactionApplier applier) {
         mSyncTransactionApplier = applier;
         return this;
     }
@@ -137,16 +134,14 @@
         return this;
     }
 
-    public SurfaceParams[] createSurfaceParams(BuilderProxy proxy) {
+    public SurfaceTransaction createSurfaceParams(BuilderProxy proxy) {
         RemoteAnimationTargets targets = mTargetSet;
-        final int appLength =  targets.unfilteredApps.length;
-        final int wallpaperLength = targets.wallpapers != null ? targets.wallpapers.length : 0;
-        SurfaceParams[] surfaceParams = new SurfaceParams[appLength + wallpaperLength];
+        SurfaceTransaction transaction = new SurfaceTransaction();
         mRecentsSurface = getRecentsSurface(targets);
 
-        for (int i = 0; i < appLength; i++) {
+        for (int i = 0; i < targets.unfilteredApps.length; i++) {
             RemoteAnimationTargetCompat app = targets.unfilteredApps[i];
-            SurfaceParams.Builder builder = new SurfaceParams.Builder(app.leash);
+            SurfaceProperties builder = transaction.forSurface(app.leash);
 
             if (app.mode == targets.targetMode) {
                 if (app.activityType == RemoteAnimationTargetCompat.ACTIVITY_TYPE_HOME) {
@@ -156,9 +151,9 @@
                     if (app.activityType == RemoteAnimationTargetCompat.ACTIVITY_TYPE_ASSISTANT
                             && app.isNotInRecents) {
                         float progress = Utilities.boundToRange(getProgress(), 0, 1);
-                        builder.withAlpha(1 - Interpolators.DEACCEL_2_5.getInterpolation(progress));
+                        builder.setAlpha(1 - Interpolators.DEACCEL_2_5.getInterpolation(progress));
                     } else {
-                        builder.withAlpha(getTargetAlpha());
+                        builder.setAlpha(getTargetAlpha());
                     }
 
                     proxy.onBuildTargetParams(builder, app, this);
@@ -166,15 +161,15 @@
             } else {
                 mBaseBuilderProxy.onBuildTargetParams(builder, app, this);
             }
-            surfaceParams[i] = builder.build();
         }
+
         // always put wallpaper layer to bottom.
+        final int wallpaperLength = targets.wallpapers != null ? targets.wallpapers.length : 0;
         for (int i = 0; i < wallpaperLength; i++) {
             RemoteAnimationTargetCompat wallpaper = targets.wallpapers[i];
-            surfaceParams[appLength + i] = new SurfaceParams.Builder(wallpaper.leash)
-                    .withLayer(Integer.MIN_VALUE).build();
+            transaction.forSurface(wallpaper.leash).setLayer(Integer.MIN_VALUE);
         }
-        return surfaceParams;
+        return transaction;
     }
 
     private static SurfaceControl getRecentsSurface(RemoteAnimationTargets targets) {
@@ -213,15 +208,11 @@
         return mTargetSet;
     }
 
-    public void applySurfaceParams(SurfaceParams... params) {
+    public void applySurfaceParams(SurfaceTransaction builder) {
         if (mSyncTransactionApplier != null) {
-            mSyncTransactionApplier.scheduleApply(params);
+            mSyncTransactionApplier.scheduleApply(builder);
         } else {
-            TransactionCompat t = new TransactionCompat();
-            for (SurfaceParams param : params) {
-                SyncRtSurfaceTransactionApplierCompat.applyParams(t, param);
-            }
-            t.apply();
+            builder.getTransaction().apply();
         }
     }
 
@@ -229,9 +220,9 @@
     public interface BuilderProxy {
 
         BuilderProxy NO_OP = (builder, app, params) -> { };
-        BuilderProxy ALWAYS_VISIBLE = (builder, app, params) ->builder.withAlpha(1);
+        BuilderProxy ALWAYS_VISIBLE = (builder, app, params) -> builder.setAlpha(1);
 
-        void onBuildTargetParams(SurfaceParams.Builder builder,
+        void onBuildTargetParams(SurfaceProperties builder,
                 RemoteAnimationTargetCompat app, TransformParams params);
     }
 }
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index 6d95e7d..ab19487 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -180,6 +180,7 @@
 import com.android.quickstep.util.SplitAnimationTimings;
 import com.android.quickstep.util.SplitScreenBounds;
 import com.android.quickstep.util.SplitSelectStateController;
+import com.android.quickstep.util.SurfaceTransaction;
 import com.android.quickstep.util.SurfaceTransactionApplier;
 import com.android.quickstep.util.TaskViewSimulator;
 import com.android.quickstep.util.TaskVisualsChangeListener;
@@ -192,7 +193,6 @@
 import com.android.systemui.shared.system.InteractionJankMonitorWrapper;
 import com.android.systemui.shared.system.PackageManagerWrapper;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
-import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat.SurfaceParams;
 import com.android.systemui.shared.system.TaskStackChangeListener;
 import com.android.systemui.shared.system.TaskStackChangeListeners;
 import com.android.wm.shell.pip.IPipAnimationListener;
@@ -1077,14 +1077,15 @@
             appAnimator.setInterpolator(ACCEL_DEACCEL);
             appAnimator.addUpdateListener(valueAnimator -> {
                 float percent = valueAnimator.getAnimatedFraction();
-                SurfaceParams.Builder builder = new SurfaceParams.Builder(
-                        apps[apps.length - 1].leash);
+                SurfaceTransaction transaction = new SurfaceTransaction();
                 Matrix matrix = new Matrix();
                 matrix.postScale(percent, percent);
                 matrix.postTranslate(mActivity.getDeviceProfile().widthPx * (1 - percent) / 2,
                         mActivity.getDeviceProfile().heightPx * (1 - percent) / 2);
-                builder.withAlpha(percent).withMatrix(matrix);
-                surfaceApplier.scheduleApply(builder.build());
+                transaction.forSurface(apps[apps.length - 1].leash)
+                        .setAlpha(percent)
+                        .setMatrix(matrix);
+                surfaceApplier.scheduleApply(transaction);
             });
             anim.play(appAnimator);
             anim.addListener(new AnimatorListenerAdapter() {
diff --git a/quickstep/tests/src/com/android/launcher3/model/WidgetsPredicationUpdateTaskTest.java b/quickstep/tests/src/com/android/launcher3/model/WidgetsPredicationUpdateTaskTest.java
index c1b3beb..b903691 100644
--- a/quickstep/tests/src/com/android/launcher3/model/WidgetsPredicationUpdateTaskTest.java
+++ b/quickstep/tests/src/com/android/launcher3/model/WidgetsPredicationUpdateTaskTest.java
@@ -36,7 +36,6 @@
 import android.content.ComponentName;
 import android.os.UserHandle;
 import android.text.TextUtils;
-import android.util.Log;
 
 import androidx.test.ext.junit.runners.AndroidJUnit4;
 import androidx.test.filters.SmallTest;
@@ -111,7 +110,6 @@
         doReturn(allWidgets).when(manager).getInstalledProvidersForProfile(eq(myUserHandle()));
         doAnswer(i -> {
             String pkg = i.getArgument(0);
-            Log.e("Hello", "Getting v " + pkg);
             return TextUtils.isEmpty(pkg) ? allWidgets : allWidgets.stream()
                     .filter(a -> pkg.equals(a.provider.getPackageName()))
                     .collect(Collectors.toList());
diff --git a/quickstep/tests/src/com/android/quickstep/util/TaskViewSimulatorTest.java b/quickstep/tests/src/com/android/quickstep/util/TaskViewSimulatorTest.java
index 190b002..97eee1f 100644
--- a/quickstep/tests/src/com/android/quickstep/util/TaskViewSimulatorTest.java
+++ b/quickstep/tests/src/com/android/quickstep/util/TaskViewSimulatorTest.java
@@ -24,7 +24,6 @@
 import android.graphics.RectF;
 import android.util.ArrayMap;
 import android.view.Surface;
-import android.view.SurfaceControl;
 
 import androidx.test.ext.junit.runners.AndroidJUnit4;
 import androidx.test.filters.SmallTest;
@@ -42,8 +41,8 @@
 import com.android.launcher3.util.window.WindowManagerProxy;
 import com.android.quickstep.FallbackActivityInterface;
 import com.android.quickstep.SystemUiProxy;
+import com.android.quickstep.util.SurfaceTransaction.MockProperties;
 import com.android.systemui.shared.system.RemoteAnimationTargetCompat;
-import com.android.systemui.shared.system.SyncRtSurfaceTransactionApplierCompat.SurfaceParams;
 
 import org.hamcrest.Description;
 import org.hamcrest.TypeSafeMatcher;
@@ -207,17 +206,21 @@
         }
 
         @Override
-        public SurfaceParams[] createSurfaceParams(BuilderProxy proxy) {
-            SurfaceParams.Builder builder = new SurfaceParams.Builder((SurfaceControl) null);
-            proxy.onBuildTargetParams(builder, mock(RemoteAnimationTargetCompat.class), this);
-            return new SurfaceParams[] {builder.build()};
+        public SurfaceTransaction createSurfaceParams(BuilderProxy proxy) {
+            RecordingSurfaceTransaction transaction = new RecordingSurfaceTransaction();
+            proxy.onBuildTargetParams(
+                    transaction.mockProperties, mock(RemoteAnimationTargetCompat.class), this);
+            return transaction;
         }
 
         @Override
-        public void applySurfaceParams(SurfaceParams[] params) {
+        public void applySurfaceParams(SurfaceTransaction params) {
+            Assert.assertTrue(params instanceof RecordingSurfaceTransaction);
+            MockProperties p = ((RecordingSurfaceTransaction) params).mockProperties;
+
             // Verify that the task position remains the same
             RectF newAppBounds = new RectF(mAppBounds);
-            params[0].matrix.mapRect(newAppBounds);
+            p.matrix.mapRect(newAppBounds);
             Assert.assertThat(newAppBounds, new AlmostSame(mAppBounds));
 
             System.err.println("Bounds mapped: " + mAppBounds + " => " + newAppBounds);