diff --git a/quickstep/src/com/android/launcher3/taskbar/KeyboardQuickSwitchViewController.java b/quickstep/src/com/android/launcher3/taskbar/KeyboardQuickSwitchViewController.java
index 6e88780..9dac89d 100644
--- a/quickstep/src/com/android/launcher3/taskbar/KeyboardQuickSwitchViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/KeyboardQuickSwitchViewController.java
@@ -15,20 +15,26 @@
  */
 package com.android.launcher3.taskbar;
 
+import static android.window.SplashScreen.SPLASH_SCREEN_STYLE_UNDEFINED;
+
 import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
 
 import android.animation.Animator;
+import android.app.ActivityOptions;
 import android.view.KeyEvent;
 import android.view.View;
+import android.window.RemoteTransition;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 
+import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.AnimatorListeners;
 import com.android.launcher3.taskbar.overlay.TaskbarOverlayContext;
 import com.android.launcher3.taskbar.overlay.TaskbarOverlayDragLayer;
 import com.android.quickstep.SystemUiProxy;
 import com.android.quickstep.util.GroupTask;
+import com.android.quickstep.util.SlideInRemoteTransition;
 import com.android.systemui.shared.recents.model.Task;
 import com.android.systemui.shared.recents.model.ThumbnailData;
 import com.android.systemui.shared.system.ActivityManagerWrapper;
@@ -142,19 +148,23 @@
             return -1;
         }
 
+        RemoteTransition remoteTransition = new RemoteTransition(new SlideInRemoteTransition(
+                Utilities.isRtl(mControllers.taskbarActivityContext.getResources())));
         if (mOnDesktop) {
             UI_HELPER_EXECUTOR.execute(() ->
                     SystemUiProxy.INSTANCE.get(mKeyboardQuickSwitchView.getContext())
                             .showDesktopApp(task.task1.key.id));
         } else if (task.task2 == null) {
-            UI_HELPER_EXECUTOR.execute(() ->
-                    ActivityManagerWrapper.getInstance().startActivityFromRecents(
-                            task.task1.key,
-                            mControllers.taskbarActivityContext.getActivityLaunchOptions(
-                                    taskView == null ? mKeyboardQuickSwitchView : taskView, null)
-                                    .options));
+            UI_HELPER_EXECUTOR.execute(() -> {
+                ActivityOptions activityOptions = mControllers.taskbarActivityContext
+                        .makeDefaultActivityOptions(SPLASH_SCREEN_STYLE_UNDEFINED).options;
+                activityOptions.setRemoteTransition(remoteTransition);
+
+                ActivityManagerWrapper.getInstance().startActivityFromRecents(
+                        task.task1.key, activityOptions);
+            });
         } else {
-            mControllers.uiController.launchSplitTasks(task);
+            mControllers.uiController.launchSplitTasks(task, remoteTransition);
         }
         return -1;
     }
diff --git a/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java b/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java
index 159a6ef..d62e117 100644
--- a/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/LauncherTaskbarUIController.java
@@ -27,6 +27,7 @@
 import android.util.Log;
 import android.view.TaskTransitionSpec;
 import android.view.WindowManagerGlobal;
+import android.window.RemoteTransition;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
@@ -390,8 +391,9 @@
     }
 
     @Override
-    public void launchSplitTasks(@NonNull GroupTask groupTask) {
-        mLauncher.launchSplitTasks(groupTask);
+    public void launchSplitTasks(
+            @NonNull GroupTask groupTask, @Nullable RemoteTransition remoteTransition) {
+        mLauncher.launchSplitTasks(groupTask, remoteTransition);
     }
 
     @Override
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarUIController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarUIController.java
index 7edf0d3..ecedf8a 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarUIController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarUIController.java
@@ -25,6 +25,7 @@
 import android.graphics.drawable.BitmapDrawable;
 import android.view.MotionEvent;
 import android.view.View;
+import android.window.RemoteTransition;
 
 import androidx.annotation.CallSuper;
 import androidx.annotation.NonNull;
@@ -302,7 +303,8 @@
     /**
      * Launches the given task in split-screen.
      */
-    public void launchSplitTasks(@NonNull GroupTask groupTask) { }
+    public void launchSplitTasks(
+            @NonNull GroupTask groupTask, @Nullable RemoteTransition remoteTransition) { }
 
     /**
      * Returns the matching view (if any) in the taskbar.
diff --git a/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java b/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
index f45ddb6..71f4faf 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
@@ -84,6 +84,7 @@
 import android.window.BackEvent;
 import android.window.OnBackAnimationCallback;
 import android.window.OnBackInvokedDispatcher;
+import android.window.RemoteTransition;
 import android.window.SplashScreen;
 
 import androidx.annotation.BinderThread;
@@ -1271,7 +1272,8 @@
     /**
      * Launches the given {@link GroupTask} in splitscreen.
      */
-    public void launchSplitTasks(@NonNull GroupTask groupTask) {
+    public void launchSplitTasks(
+            @NonNull GroupTask groupTask, @Nullable RemoteTransition remoteTransition) {
         // Top/left and bottom/right tasks respectively.
         Task task1 = groupTask.task1;
         // task2 should never be null when calling this method. Allow a crash to catch invalid calls
@@ -1285,7 +1287,8 @@
                 /* freezeTaskList= */ false,
                 groupTask.mSplitBounds == null
                         ? SNAP_TO_50_50
-                        : groupTask.mSplitBounds.snapPosition);
+                        : groupTask.mSplitBounds.snapPosition,
+                remoteTransition);
     }
 
     /**
diff --git a/quickstep/src/com/android/quickstep/util/SlideInRemoteTransition.kt b/quickstep/src/com/android/quickstep/util/SlideInRemoteTransition.kt
new file mode 100644
index 0000000..c1fa2f3
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/util/SlideInRemoteTransition.kt
@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2023 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.animation.ValueAnimator
+import android.app.WindowConfiguration.ACTIVITY_TYPE_HOME
+import android.graphics.Rect
+import android.os.IBinder
+import android.os.RemoteException
+import android.view.SurfaceControl
+import android.view.SurfaceControl.Transaction
+import android.window.IRemoteTransition
+import android.window.IRemoteTransitionFinishedCallback
+import android.window.TransitionInfo
+import com.android.launcher3.anim.AnimatorListeners.forEndCallback
+import com.android.launcher3.util.Executors
+import com.android.wm.shell.util.TransitionUtil
+
+/** Remote animation which slides the opening targets in and the closing targets out */
+class SlideInRemoteTransition(val isRtl: Boolean) : IRemoteTransition.Stub() {
+
+    override fun mergeAnimation(
+        iBinder: IBinder,
+        transitionInfo: TransitionInfo,
+        transaction: Transaction,
+        mergeTarget: IBinder,
+        finishCB: IRemoteTransitionFinishedCallback
+    ) {
+
+        try {
+            finishCB.onTransitionFinished(null, Transaction())
+        } catch (e: RemoteException) {
+            // Ignore
+        }
+    }
+
+    override fun startAnimation(
+        transition: IBinder,
+        info: TransitionInfo,
+        startT: Transaction,
+        finishCB: IRemoteTransitionFinishedCallback
+    ) {
+        val anim = ValueAnimator.ofFloat(0f, 1f)
+
+        val closingStartBounds: HashMap<SurfaceControl, Rect> = HashMap()
+        val openingEndBounds: HashMap<SurfaceControl, Rect> = HashMap()
+        for (chg in info.changes) {
+            val leash = chg.leash
+            startT.show(leash)
+
+            val taskInfo = chg.taskInfo
+            if (taskInfo?.activityType == ACTIVITY_TYPE_HOME || taskInfo?.parentTaskId != -1) {
+                continue
+            }
+            if (TransitionUtil.isClosingType(chg.mode)) {
+                closingStartBounds[leash] = chg.startAbsBounds
+            }
+            if (TransitionUtil.isOpeningType(chg.mode)) {
+                openingEndBounds[leash] = chg.endAbsBounds
+            }
+        }
+        startT.apply()
+
+        anim.addUpdateListener {
+            val t = Transaction()
+            closingStartBounds.keys.forEach {
+                // Translate the surface from its original position on-screen to off-screen on the
+                // right (or left in RTL)
+                val startBounds = closingStartBounds[it]
+                val targetX = (if (isRtl) -1 else 1) * startBounds!!.right
+                t.setPosition(it, anim.animatedValue as Float * targetX, 0f)
+            }
+            openingEndBounds.keys.forEach {
+                // Set the alpha in the update listener to prevent one visible frame at the
+                // beginning
+                t.setAlpha(it, 1f)
+                // Translate the surface from off-screen on the left (or left in RTL) to its final
+                // position on-screen
+                val endBounds = openingEndBounds[it]
+                val targetX = (if (isRtl) -1 else 1) * endBounds!!.right
+                t.setPosition(it, (1f - anim.animatedValue as Float) * -targetX, 0f)
+            }
+            t.apply()
+        }
+        anim.addListener(
+            forEndCallback(
+                Runnable {
+                    val t = Transaction()
+                    try {
+                        finishCB.onTransitionFinished(null, t)
+                    } catch (e: RemoteException) {
+                        // Ignore
+                    }
+                }
+            )
+        )
+
+        Executors.MAIN_EXECUTOR.execute { anim.start() }
+    }
+
+    override fun onTransitionConsumed(transition: IBinder?, aborted: Boolean) {}
+}
diff --git a/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java b/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
index 193cc2b..3c90e0c 100644
--- a/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
+++ b/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
@@ -498,6 +498,29 @@
     }
 
     /**
+     * Used to launch split screen from a split pair that already exists, optionally with a custom
+     * remote transition.
+     * <p>
+     * See {@link SplitSelectStateController#launchExistingSplitPair(
+     * GroupedTaskView, int, int, int, Consumer, boolean, int, RemoteTransition)}
+     */
+    public void launchExistingSplitPair(@Nullable GroupedTaskView groupedTaskView,
+            int firstTaskId, int secondTaskId, @StagePosition int stagePosition,
+            Consumer<Boolean> callback, boolean freezeTaskList,
+            @PersistentSnapPosition int snapPosition) {
+        launchExistingSplitPair(
+                groupedTaskView,
+                firstTaskId,
+                secondTaskId,
+                stagePosition,
+                callback,
+                freezeTaskList,
+                snapPosition,
+                /* remoteTransition= */ null);
+    }
+
+
+    /**
      * Used to launch split screen from a split pair that already exists (usually accessible through
      * Overview). This is different than {@link #launchTasks(Consumer, boolean, int, InstanceId)}
      * in that this only launches split screen that are existing tasks. This doesn't determine which
@@ -509,7 +532,7 @@
     public void launchExistingSplitPair(@Nullable GroupedTaskView groupedTaskView,
             int firstTaskId, int secondTaskId, @StagePosition int stagePosition,
             Consumer<Boolean> callback, boolean freezeTaskList,
-            @PersistentSnapPosition int snapPosition) {
+            @PersistentSnapPosition int snapPosition, @Nullable RemoteTransition remoteTransition) {
         mLaunchingTaskView = groupedTaskView;
         final ActivityOptions options1 = ActivityOptions.makeBasic();
         if (freezeTaskList) {
@@ -518,10 +541,12 @@
         Bundle optionsBundle = options1.toBundle();
 
         if (TaskAnimationManager.ENABLE_SHELL_TRANSITIONS) {
-            final RemoteTransition remoteTransition = getShellRemoteTransition(firstTaskId,
-                    secondTaskId, callback, "LaunchExistingPair");
+            final RemoteTransition transition = remoteTransition == null
+                    ? getShellRemoteTransition(
+                            firstTaskId, secondTaskId, callback, "LaunchExistingPair")
+                    : remoteTransition;
             mSystemUiProxy.startTasks(firstTaskId, optionsBundle, secondTaskId, null /* options2 */,
-                    stagePosition, snapPosition, remoteTransition, null /*shellInstanceId*/);
+                    stagePosition, snapPosition, transition, null /*shellInstanceId*/);
         } else {
             final RemoteAnimationAdapter adapter = getLegacyRemoteAdapter(firstTaskId,
                     secondTaskId, callback);