diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/dagger/pip/Pip1Module.java b/libs/WindowManager/Shell/src/com/android/wm/shell/dagger/pip/Pip1Module.java
index 037fbb2..1a9c304 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/dagger/pip/Pip1Module.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/dagger/pip/Pip1Module.java
@@ -206,13 +206,12 @@
     @WMSingleton
     @Provides
     static PipMotionHelper providePipMotionHelper(Context context,
-            @ShellMainThread ShellExecutor mainExecutor,
             PipBoundsState pipBoundsState, PipTaskOrganizer pipTaskOrganizer,
             PhonePipMenuController menuController, PipSnapAlgorithm pipSnapAlgorithm,
             PipTransitionController pipTransitionController,
             FloatingContentCoordinator floatingContentCoordinator,
             Optional<PipPerfHintController> pipPerfHintControllerOptional) {
-        return new PipMotionHelper(context, mainExecutor, pipBoundsState, pipTaskOrganizer,
+        return new PipMotionHelper(context, pipBoundsState, pipTaskOrganizer,
                 menuController, pipSnapAlgorithm, pipTransitionController,
                 floatingContentCoordinator, pipPerfHintControllerOptional);
     }
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/pip/Pip.java b/libs/WindowManager/Shell/src/com/android/wm/shell/pip/Pip.java
index b27c428..a749019 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/pip/Pip.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/pip/Pip.java
@@ -16,12 +16,10 @@
 
 package com.android.wm.shell.pip;
 
-import android.annotation.NonNull;
 import android.graphics.Rect;
 
 import com.android.wm.shell.shared.annotations.ExternalThread;
 
-import java.util.concurrent.Executor;
 import java.util.function.Consumer;
 
 /**
@@ -71,10 +69,9 @@
     default void removePipExclusionBoundsChangeListener(Consumer<Rect> listener) { }
 
     /**
-     * Register {@link PipTransitionController.PipTransitionCallback} to listen on PiP transition
-     * started / finished callbacks.
+     * @return {@link PipTransitionController} instance.
      */
-    default void registerPipTransitionCallback(
-            @NonNull PipTransitionController.PipTransitionCallback callback,
-            @NonNull Executor executor) { }
+    default PipTransitionController getPipTransitionController() {
+        return null;
+    }
 }
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/pip/PipTaskOrganizer.java b/libs/WindowManager/Shell/src/com/android/wm/shell/pip/PipTaskOrganizer.java
index 6e1e44b..ad48c0d 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/pip/PipTaskOrganizer.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/pip/PipTaskOrganizer.java
@@ -423,8 +423,7 @@
             });
             mPipTransitionController.setPipOrganizer(this);
             displayController.addDisplayWindowListener(this);
-            pipTransitionController.registerPipTransitionCallback(
-                    mPipTransitionCallback, mMainExecutor);
+            pipTransitionController.registerPipTransitionCallback(mPipTransitionCallback);
         }
     }
 
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/pip/PipTransitionController.java b/libs/WindowManager/Shell/src/com/android/wm/shell/pip/PipTransitionController.java
index 8d36db9..b1dd4f1 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/pip/PipTransitionController.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/pip/PipTransitionController.java
@@ -53,9 +53,8 @@
 import com.android.wm.shell.transition.Transitions;
 
 import java.io.PrintWriter;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.concurrent.Executor;
+import java.util.ArrayList;
+import java.util.List;
 
 /**
  * Responsible supplying PiP Transitions.
@@ -67,7 +66,7 @@
     protected final ShellTaskOrganizer mShellTaskOrganizer;
     protected final PipMenuController mPipMenuController;
     protected final Transitions mTransitions;
-    private final Map<PipTransitionCallback, Executor> mPipTransitionCallbacks = new HashMap<>();
+    private final List<PipTransitionCallback> mPipTransitionCallbacks = new ArrayList<>();
     protected PipTaskOrganizer mPipOrganizer;
     protected DefaultMixedHandler mMixedHandler;
 
@@ -184,18 +183,16 @@
     /**
      * Registers {@link PipTransitionCallback} to receive transition callbacks.
      */
-    public void registerPipTransitionCallback(
-            @NonNull PipTransitionCallback callback, @NonNull Executor executor) {
-        mPipTransitionCallbacks.put(callback, executor);
+    public void registerPipTransitionCallback(PipTransitionCallback callback) {
+        mPipTransitionCallbacks.add(callback);
     }
 
     protected void sendOnPipTransitionStarted(
             @PipAnimationController.TransitionDirection int direction) {
         final Rect pipBounds = mPipBoundsState.getBounds();
-        for (Map.Entry<PipTransitionCallback, Executor> entry
-                : mPipTransitionCallbacks.entrySet()) {
-            entry.getValue().execute(
-                    () -> entry.getKey().onPipTransitionStarted(direction, pipBounds));
+        for (int i = mPipTransitionCallbacks.size() - 1; i >= 0; i--) {
+            final PipTransitionCallback callback = mPipTransitionCallbacks.get(i);
+            callback.onPipTransitionStarted(direction, pipBounds);
         }
         if (isInPipDirection(direction) && Flags.enablePipUiStateCallbackOnEntering()) {
             try {
@@ -212,10 +209,9 @@
 
     protected void sendOnPipTransitionFinished(
             @PipAnimationController.TransitionDirection int direction) {
-        for (Map.Entry<PipTransitionCallback, Executor> entry
-                : mPipTransitionCallbacks.entrySet()) {
-            entry.getValue().execute(
-                    () -> entry.getKey().onPipTransitionFinished(direction));
+        for (int i = mPipTransitionCallbacks.size() - 1; i >= 0; i--) {
+            final PipTransitionCallback callback = mPipTransitionCallbacks.get(i);
+            callback.onPipTransitionFinished(direction);
         }
         if (isInPipDirection(direction) && Flags.enablePipUiStateCallbackOnEntering()) {
             try {
@@ -232,10 +228,9 @@
 
     protected void sendOnPipTransitionCancelled(
             @PipAnimationController.TransitionDirection int direction) {
-        for (Map.Entry<PipTransitionCallback, Executor> entry
-                : mPipTransitionCallbacks.entrySet()) {
-            entry.getValue().execute(
-                    () -> entry.getKey().onPipTransitionCanceled(direction));
+        for (int i = mPipTransitionCallbacks.size() - 1; i >= 0; i--) {
+            final PipTransitionCallback callback = mPipTransitionCallbacks.get(i);
+            callback.onPipTransitionCanceled(direction);
         }
     }
 
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/pip/phone/PipController.java b/libs/WindowManager/Shell/src/com/android/wm/shell/pip/phone/PipController.java
index 0cb7e17..26b7e58 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/pip/phone/PipController.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/pip/phone/PipController.java
@@ -106,7 +106,6 @@
 import java.util.Objects;
 import java.util.Optional;
 import java.util.Set;
-import java.util.concurrent.Executor;
 import java.util.function.Consumer;
 
 /**
@@ -479,7 +478,7 @@
         mShellCommandHandler.addDumpCallback(this::dump, this);
         mPipInputConsumer = new PipInputConsumer(WindowManagerGlobal.getWindowManagerService(),
                 INPUT_CONSUMER_PIP, mMainExecutor);
-        mPipTransitionController.registerPipTransitionCallback(this, mMainExecutor);
+        mPipTransitionController.registerPipTransitionCallback(this);
         mPipTaskOrganizer.registerOnDisplayIdChangeCallback((int displayId) -> {
             mPipDisplayLayoutState.setDisplayId(displayId);
             onDisplayChanged(mDisplayController.getDisplayLayout(displayId),
@@ -1221,11 +1220,8 @@
         }
 
         @Override
-        public void registerPipTransitionCallback(
-                PipTransitionController.PipTransitionCallback callback,
-                Executor executor) {
-            mMainExecutor.execute(() -> mPipTransitionController.registerPipTransitionCallback(
-                    callback, executor));
+        public PipTransitionController getPipTransitionController() {
+            return mPipTransitionController;
         }
     }
 
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/pip/phone/PipMotionHelper.java b/libs/WindowManager/Shell/src/com/android/wm/shell/pip/phone/PipMotionHelper.java
index df3803d..e8d6576 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/pip/phone/PipMotionHelper.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/pip/phone/PipMotionHelper.java
@@ -38,7 +38,6 @@
 import com.android.wm.shell.R;
 import com.android.wm.shell.animation.FloatProperties;
 import com.android.wm.shell.common.FloatingContentCoordinator;
-import com.android.wm.shell.common.ShellExecutor;
 import com.android.wm.shell.common.magnetictarget.MagnetizedObject;
 import com.android.wm.shell.common.pip.PipAppOpsListener;
 import com.android.wm.shell.common.pip.PipBoundsState;
@@ -48,7 +47,6 @@
 import com.android.wm.shell.pip.PipTransitionController;
 import com.android.wm.shell.protolog.ShellProtoLogGroup;
 import com.android.wm.shell.shared.animation.PhysicsAnimator;
-import com.android.wm.shell.shared.annotations.ShellMainThread;
 
 import kotlin.Unit;
 import kotlin.jvm.functions.Function0;
@@ -173,9 +171,7 @@
         public void onPipTransitionCanceled(int direction) {}
     };
 
-    public PipMotionHelper(Context context,
-            @ShellMainThread ShellExecutor mainExecutor,
-            @NonNull PipBoundsState pipBoundsState,
+    public PipMotionHelper(Context context, @NonNull PipBoundsState pipBoundsState,
             PipTaskOrganizer pipTaskOrganizer, PhonePipMenuController menuController,
             PipSnapAlgorithm snapAlgorithm, PipTransitionController pipTransitionController,
             FloatingContentCoordinator floatingContentCoordinator,
@@ -187,7 +183,7 @@
         mSnapAlgorithm = snapAlgorithm;
         mFloatingContentCoordinator = floatingContentCoordinator;
         mPipPerfHintController = pipPerfHintControllerOptional.orElse(null);
-        pipTransitionController.registerPipTransitionCallback(mPipTransitionCallback, mainExecutor);
+        pipTransitionController.registerPipTransitionCallback(mPipTransitionCallback);
         mResizePipUpdateListener = (target, values) -> {
             if (mPipBoundsState.getMotionBoundsState().isInMotion()) {
                 mPipTaskOrganizer.scheduleUserResizePip(getBounds(),
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/pip/tv/TvPipController.java b/libs/WindowManager/Shell/src/com/android/wm/shell/pip/tv/TvPipController.java
index 0ed5079..62c0944 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/pip/tv/TvPipController.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/pip/tv/TvPipController.java
@@ -257,7 +257,7 @@
     }
 
     private void onInit() {
-        mPipTransitionController.registerPipTransitionCallback(this, mMainExecutor);
+        mPipTransitionController.registerPipTransitionCallback(this);
 
         reloadResources();
 
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/pip2/phone/PipController.java b/libs/WindowManager/Shell/src/com/android/wm/shell/pip2/phone/PipController.java
index c12219c..b939b16 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/pip2/phone/PipController.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/pip2/phone/PipController.java
@@ -64,7 +64,6 @@
 import com.android.wm.shell.sysui.ShellInit;
 
 import java.io.PrintWriter;
-import java.util.concurrent.Executor;
 import java.util.function.Consumer;
 
 /**
@@ -413,11 +412,6 @@
 
         @Override
         public void showPictureInPictureMenu() {}
-
-        @Override
-        public void registerPipTransitionCallback(
-                PipTransitionController.PipTransitionCallback callback,
-                Executor executor) {}
     }
 
     /**
diff --git a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/pip/phone/PipControllerTest.java b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/pip/phone/PipControllerTest.java
index 75d2145..6888de5 100644
--- a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/pip/phone/PipControllerTest.java
+++ b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/pip/phone/PipControllerTest.java
@@ -182,7 +182,7 @@
 
     @Test
     public void instantiatePipController_registersPipTransitionCallback() {
-        verify(mMockPipTransitionController).registerPipTransitionCallback(any(), any());
+        verify(mMockPipTransitionController).registerPipTransitionCallback(any());
     }
 
     @Test
diff --git a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/pip/phone/PipResizeGestureHandlerTest.java b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/pip/phone/PipResizeGestureHandlerTest.java
index 66f8c0b..ace09a8 100644
--- a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/pip/phone/PipResizeGestureHandlerTest.java
+++ b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/pip/phone/PipResizeGestureHandlerTest.java
@@ -114,8 +114,8 @@
         final PipBoundsAlgorithm pipBoundsAlgorithm = new PipBoundsAlgorithm(mContext,
                 mPipBoundsState, pipSnapAlgorithm, pipKeepClearAlgorithm, mPipDisplayLayoutState,
                 mSizeSpecSource);
-        final PipMotionHelper motionHelper = new PipMotionHelper(mContext, mMainExecutor,
-                mPipBoundsState, mPipTaskOrganizer, mPhonePipMenuController, pipSnapAlgorithm,
+        final PipMotionHelper motionHelper = new PipMotionHelper(mContext, mPipBoundsState,
+                mPipTaskOrganizer, mPhonePipMenuController, pipSnapAlgorithm,
                 mMockPipTransitionController, mFloatingContentCoordinator,
                 Optional.empty() /* pipPerfHintControllerOptional */);
 
diff --git a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/pip/phone/PipTouchHandlerTest.java b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/pip/phone/PipTouchHandlerTest.java
index 6d18e36..92762fa 100644
--- a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/pip/phone/PipTouchHandlerTest.java
+++ b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/pip/phone/PipTouchHandlerTest.java
@@ -116,8 +116,8 @@
         mPipSnapAlgorithm = new PipSnapAlgorithm();
         mPipBoundsAlgorithm = new PipBoundsAlgorithm(mContext, mPipBoundsState, mPipSnapAlgorithm,
                 new PipKeepClearAlgorithmInterface() {}, mPipDisplayLayoutState, mSizeSpecSource);
-        PipMotionHelper pipMotionHelper = new PipMotionHelper(mContext, mMainExecutor,
-                mPipBoundsState, mPipTaskOrganizer, mPhonePipMenuController, mPipSnapAlgorithm,
+        PipMotionHelper pipMotionHelper = new PipMotionHelper(mContext, mPipBoundsState,
+                mPipTaskOrganizer, mPhonePipMenuController, mPipSnapAlgorithm,
                 mMockPipTransitionController, mFloatingContentCoordinator,
                 Optional.empty() /* pipPerfHintControllerOptional */);
         mPipTouchHandler = new PipTouchHandler(mContext, mShellInit, mPhonePipMenuController,
diff --git a/packages/SystemUI/shared/src/com/android/systemui/shared/system/QuickStepContract.java b/packages/SystemUI/shared/src/com/android/systemui/shared/system/QuickStepContract.java
index 4ef1f93..484e758 100644
--- a/packages/SystemUI/shared/src/com/android/systemui/shared/system/QuickStepContract.java
+++ b/packages/SystemUI/shared/src/com/android/systemui/shared/system/QuickStepContract.java
@@ -124,8 +124,6 @@
     public static final long SYSUI_STATE_SHORTCUT_HELPER_SHOWING = 1L << 32;
     // Touchpad gestures are disabled
     public static final long SYSUI_STATE_TOUCHPAD_GESTURES_DISABLED = 1L << 33;
-    // PiP animation is running
-    public static final long SYSUI_STATE_DISABLE_GESTURE_PIP_ANIMATING = 1L << 34;
     // Communal hub is showing
     public static final long SYSUI_STATE_COMMUNAL_HUB_SHOWING = 1L << 35;
 
@@ -177,7 +175,6 @@
             SYSUI_STATE_STATUS_BAR_KEYGUARD_GOING_AWAY,
             SYSUI_STATE_SHORTCUT_HELPER_SHOWING,
             SYSUI_STATE_TOUCHPAD_GESTURES_DISABLED,
-            SYSUI_STATE_DISABLE_GESTURE_PIP_ANIMATING,
             SYSUI_STATE_COMMUNAL_HUB_SHOWING,
     })
     public @interface SystemUiStateFlags {}
@@ -283,9 +280,6 @@
         if ((flags & SYSUI_STATE_TOUCHPAD_GESTURES_DISABLED) != 0) {
             str.add("touchpad_gestures_disabled");
         }
-        if ((flags & SYSUI_STATE_DISABLE_GESTURE_PIP_ANIMATING) != 0) {
-            str.add("disable_gesture_pip_animating");
-        }
         if ((flags & SYSUI_STATE_COMMUNAL_HUB_SHOWING) != 0) {
             str.add("communal_hub_showing");
         }
diff --git a/packages/SystemUI/src/com/android/systemui/wmshell/WMShell.java b/packages/SystemUI/src/com/android/systemui/wmshell/WMShell.java
index 3f1ec85..ec9b5cf 100644
--- a/packages/SystemUI/src/com/android/systemui/wmshell/WMShell.java
+++ b/packages/SystemUI/src/com/android/systemui/wmshell/WMShell.java
@@ -20,9 +20,8 @@
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_BUBBLES_EXPANDED;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_BUBBLES_MANAGE_MENU_EXPANDED;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_DIALOG_SHOWING;
-import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_DISABLE_GESTURE_PIP_ANIMATING;
-import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_DISABLE_GESTURE_SPLIT_INVOCATION;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_FREEFORM_ACTIVE_IN_DESKTOP_MODE;
+import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_DISABLE_GESTURE_SPLIT_INVOCATION;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_NOTIFICATION_PANEL_EXPANDED;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_ONE_HANDED_ACTIVE;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_QUICK_SETTINGS_EXPANDED;
@@ -67,7 +66,6 @@
 import com.android.wm.shell.onehanded.OneHandedTransitionCallback;
 import com.android.wm.shell.onehanded.OneHandedUiEventLogger;
 import com.android.wm.shell.pip.Pip;
-import com.android.wm.shell.pip.PipTransitionController;
 import com.android.wm.shell.recents.RecentTasks;
 import com.android.wm.shell.splitscreen.SplitScreen;
 import com.android.wm.shell.sysui.ShellInterface;
@@ -251,25 +249,7 @@
                 pip.showPictureInPictureMenu();
             }
         });
-        pip.registerPipTransitionCallback(
-                new PipTransitionController.PipTransitionCallback() {
-                    @Override
-                    public void onPipTransitionStarted(int direction, Rect pipBounds) {
-                        mSysUiState.setFlag(SYSUI_STATE_DISABLE_GESTURE_PIP_ANIMATING, true)
-                                .commitUpdate(mDisplayTracker.getDefaultDisplayId());
-                    }
 
-                    @Override
-                    public void onPipTransitionFinished(int direction) {
-                        mSysUiState.setFlag(SYSUI_STATE_DISABLE_GESTURE_PIP_ANIMATING, false)
-                                .commitUpdate(mDisplayTracker.getDefaultDisplayId());
-                    }
-
-                    @Override
-                    public void onPipTransitionCanceled(int direction) {
-                        // No op.
-                    }
-                }, mSysUiMainExecutor);
         mSysUiState.addCallback(sysUiStateFlag -> {
             mIsSysUiStateValid = (sysUiStateFlag & INVALID_SYSUI_STATE_MASK) == 0;
             pip.onSystemUiStateChanged(mIsSysUiStateValid, sysUiStateFlag);