diff --git a/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java b/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
index eaf577b..b228fdb 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
@@ -70,6 +70,7 @@
 import android.view.WindowManagerGlobal;
 import android.window.SplashScreen;
 
+import androidx.annotation.BinderThread;
 import androidx.annotation.Nullable;
 
 import com.android.app.viewcapture.ViewCapture;
@@ -135,6 +136,7 @@
 import com.android.quickstep.util.RemoteAnimationProvider;
 import com.android.quickstep.util.RemoteFadeOutAnimationListener;
 import com.android.quickstep.util.SplitSelectStateController;
+import com.android.quickstep.util.SplitWithKeyboardShortcutController;
 import com.android.quickstep.util.TISBindHelper;
 import com.android.quickstep.views.OverviewActionsView;
 import com.android.quickstep.views.RecentsView;
@@ -179,6 +181,8 @@
     private @Nullable UnfoldTransitionProgressProvider mUnfoldTransitionProgressProvider;
     private @Nullable RotationChangeProvider mRotationChangeProvider;
     private @Nullable LauncherUnfoldAnimationController mLauncherUnfoldAnimationController;
+
+    private SplitWithKeyboardShortcutController mSplitWithKeyboardShortcutController;
     /**
      * If Launcher restarted while in the middle of an Overview split select, it needs this data to
      * recover. In all other cases this will remain null.
@@ -194,11 +198,13 @@
         super.setupViews();
 
         mActionsView = findViewById(R.id.overview_actions_view);
-        RecentsView overviewPanel = (RecentsView) getOverviewPanel();
+        RecentsView overviewPanel = getOverviewPanel();
         SplitSelectStateController controller =
                 new SplitSelectStateController(this, mHandler, getStateManager(),
                         getDepthController(), getStatsLogManager());
         overviewPanel.init(mActionsView, controller);
+        mSplitWithKeyboardShortcutController = new SplitWithKeyboardShortcutController(this,
+                controller);
         mActionsView.updateDimension(getDeviceProfile(), overviewPanel.getLastComputedTaskSize());
         mActionsView.updateVerticalMargin(DisplayController.getNavigationMode(this));
 
@@ -321,6 +327,17 @@
         super.showAllAppsFromIntent(alreadyOnHome);
     }
 
+    protected void onItemClicked(View view) {
+        if (!mSplitWithKeyboardShortcutController.handleSecondAppSelectionForSplit(view)) {
+            QuickstepLauncher.super.getItemOnClickListener().onClick(view);
+        }
+    }
+
+    @Override
+    public View.OnClickListener getItemOnClickListener() {
+        return this::onItemClicked;
+    }
+
     @Override
     public Stream<SystemShortcut.Factory> getSupportedShortcuts() {
         Stream<SystemShortcut.Factory> base = Stream.of(WellbeingModel.SHORTCUT_FACTORY);
@@ -402,6 +419,7 @@
 
         super.onDestroy();
         mHotseatPredictionController.destroy();
+        mSplitWithKeyboardShortcutController.onDestroy();
         if (mViewCapture != null) mViewCapture.close();
     }
 
@@ -832,6 +850,12 @@
         return activityOptions;
     }
 
+    @Override
+    @BinderThread
+    public void enterStageSplitFromRunningApp(boolean leftOrTop) {
+        mSplitWithKeyboardShortcutController.enterStageSplit(leftOrTop);
+    }
+
     /**
      * Adds a new launch cookie for the activity launch if supported.
      *
diff --git a/quickstep/src/com/android/quickstep/TaskViewUtils.java b/quickstep/src/com/android/quickstep/TaskViewUtils.java
index 9d5e7c3..e8722e2 100644
--- a/quickstep/src/com/android/quickstep/TaskViewUtils.java
+++ b/quickstep/src/com/android/quickstep/TaskViewUtils.java
@@ -43,7 +43,6 @@
 import android.animation.AnimatorSet;
 import android.animation.ValueAnimator;
 import android.annotation.TargetApi;
-import android.app.PendingIntent;
 import android.content.ComponentName;
 import android.content.Context;
 import android.graphics.Matrix;
@@ -399,9 +398,8 @@
      */
     public static void composeRecentsSplitLaunchAnimator(GroupedTaskView launchingTaskView,
             @NonNull StateManager stateManager, @Nullable DepthController depthController,
-            int initialTaskId, @Nullable PendingIntent initialTaskPendingIntent, int secondTaskId,
-            @NonNull TransitionInfo transitionInfo, SurfaceControl.Transaction t,
-            @NonNull Runnable finishCallback) {
+            int initialTaskId, int secondTaskId, @NonNull TransitionInfo transitionInfo,
+            SurfaceControl.Transaction t, @NonNull Runnable finishCallback) {
         if (launchingTaskView != null) {
             AnimatorSet animatorSet = new AnimatorSet();
             animatorSet.addListener(new AnimatorListenerAdapter() {
@@ -491,8 +489,7 @@
      * If it is null, then it will simply fade in the starting apps and fade out launcher (for the
      * case where launcher handles animating starting split tasks from app icon) */
     public static void composeRecentsSplitLaunchAnimatorLegacy(
-            @Nullable GroupedTaskView launchingTaskView, int initialTaskId,
-            @Nullable PendingIntent initialTaskPendingIntent, int secondTaskId,
+            @Nullable GroupedTaskView launchingTaskView, int initialTaskId, int secondTaskId,
             @NonNull RemoteAnimationTarget[] appTargets,
             @NonNull RemoteAnimationTarget[] wallpaperTargets,
             @NonNull RemoteAnimationTarget[] nonAppTargets,
diff --git a/quickstep/src/com/android/quickstep/TouchInteractionService.java b/quickstep/src/com/android/quickstep/TouchInteractionService.java
index 7b9b04a..01dcd52 100644
--- a/quickstep/src/com/android/quickstep/TouchInteractionService.java
+++ b/quickstep/src/com/android/quickstep/TouchInteractionService.java
@@ -294,6 +294,16 @@
             MAIN_EXECUTOR.execute(ProxyScreenStatusProvider.INSTANCE::onScreenTurningOff);
         }
 
+        @BinderThread
+        @Override
+        public void enterStageSplitFromRunningApp(boolean leftOrTop) {
+            StatefulActivity activity =
+                    mOverviewComponentObserver.getActivityInterface().getCreatedActivity();
+            if (activity != null) {
+                activity.enterStageSplitFromRunningApp(leftOrTop);
+            }
+        }
+
         /**
          * Preloads the Overview activity.
          *
diff --git a/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java b/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
index 3119a77..825c721 100644
--- a/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
+++ b/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
@@ -22,8 +22,10 @@
 import static com.android.launcher3.Utilities.postAsyncCallback;
 import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
 import static com.android.launcher3.util.SplitConfigurationOptions.DEFAULT_SPLIT_RATIO;
+import static com.android.launcher3.util.SplitConfigurationOptions.getOppositeStagePosition;
 
 import android.annotation.NonNull;
+import android.app.ActivityManager;
 import android.app.ActivityOptions;
 import android.app.ActivityThread;
 import android.app.PendingIntent;
@@ -57,6 +59,7 @@
 import com.android.quickstep.SystemUiProxy;
 import com.android.quickstep.TaskAnimationManager;
 import com.android.quickstep.TaskViewUtils;
+import com.android.quickstep.views.FloatingTaskView;
 import com.android.quickstep.views.GroupedTaskView;
 import com.android.quickstep.views.TaskView;
 import com.android.systemui.shared.recents.model.Task;
@@ -84,6 +87,8 @@
     private ItemInfo mItemInfo;
     private Intent mInitialTaskIntent;
     private int mInitialTaskId = INVALID_TASK_ID;
+    private String mInitialTaskPackageName;
+    private Intent mSecondTaskIntent;
     private int mSecondTaskId = INVALID_TASK_ID;
     private String mSecondTaskPackageName;
     private boolean mRecentsAnimationRunning;
@@ -95,6 +100,8 @@
     /** Represents where split is intended to be invoked from. */
     private StatsLogManager.EventEnum mSplitEvent;
 
+    private FloatingTaskView mFirstFloatingTaskView;
+
     public SplitSelectStateController(Context context, Handler handler, StateManager stateManager,
             DepthController depthController, StatsLogManager statsLogManager) {
         mContext = context;
@@ -106,19 +113,36 @@
     }
 
     /**
-     * To be called after first task selected
+     * To be called after first task selected in Overview.
      */
-    public void setInitialTaskSelect(int taskId, @StagePosition int stagePosition,
+    public void setInitialTaskSelect(Task task, @StagePosition int stagePosition,
             StatsLogManager.EventEnum splitEvent, ItemInfo itemInfo) {
-        mInitialTaskId = taskId;
+        mInitialTaskId = task.key.id;
+        mInitialTaskPackageName = task.getTopComponent().getPackageName();
         setInitialData(stagePosition, splitEvent, itemInfo);
     }
 
+    /**
+     * To be called after first task selected from home or all apps.
+     */
     public void setInitialTaskSelect(Intent intent, @StagePosition int stagePosition,
             @NonNull ItemInfo itemInfo, StatsLogManager.EventEnum splitEvent) {
         mInitialTaskIntent = intent;
         mUser = itemInfo.user;
         mItemInfo = itemInfo;
+        mInitialTaskPackageName = intent.getComponent().getPackageName();
+        setInitialData(stagePosition, splitEvent, itemInfo);
+    }
+
+    /**
+     * To be called after first task selected from using a split shortcut from the fullscreen
+     * running app.
+     */
+    public void setInitialTaskSelect(ActivityManager.RunningTaskInfo info,
+            @StagePosition int stagePosition, @NonNull ItemInfo itemInfo,
+            StatsLogManager.EventEnum splitEvent) {
+        mInitialTaskId = info.taskId;
+        mInitialTaskPackageName = info.topActivity.getPackageName();
         setInitialData(stagePosition, splitEvent, itemInfo);
     }
 
@@ -134,27 +158,11 @@
      * to be launched. Call after launcher side animations are complete.
      */
     public void launchSplitTasks(Consumer<Boolean> callback) {
-        final Intent fillInIntent;
-        if (mInitialTaskIntent != null) {
-            fillInIntent = new Intent();
-            if (TextUtils.equals(mInitialTaskIntent.getComponent().getPackageName(),
-                    mSecondTaskPackageName)) {
-                fillInIntent.addFlags(Intent.FLAG_ACTIVITY_MULTIPLE_TASK);
-            }
-        } else {
-            fillInIntent = null;
-        }
-
-        final PendingIntent pendingIntent = mInitialTaskIntent == null ? null : (mUser != null
-                ? PendingIntent.getActivityAsUser(mContext, 0, mInitialTaskIntent,
-                FLAG_MUTABLE, null /* options */, mUser)
-                : PendingIntent.getActivity(mContext, 0, mInitialTaskIntent, FLAG_MUTABLE));
-
         Pair<InstanceId, com.android.launcher3.logging.InstanceId> instanceIds =
                 LogUtils.getShellShareableInstanceId();
-        launchTasks(mInitialTaskId, pendingIntent, fillInIntent, mSecondTaskId, mStagePosition,
-                callback, false /* freezeTaskList */, DEFAULT_SPLIT_RATIO,
-                instanceIds.first);
+        launchTasks(mInitialTaskId, mInitialTaskIntent, mInitialTaskPackageName, mSecondTaskId,
+                mSecondTaskIntent, mSecondTaskPackageName, mStagePosition, callback,
+                false /* freezeTaskList */, DEFAULT_SPLIT_RATIO, instanceIds.first);
 
         mStatsLogManager.logger()
                 .withItemInfo(mItemInfo)
@@ -162,23 +170,25 @@
                 .log(mSplitEvent);
     }
 
-
     /**
      * To be called as soon as user selects the second task (even if animations aren't complete)
      * @param task The second task that will be launched.
      */
     public void setSecondTask(Task task) {
         mSecondTaskId = task.key.id;
-        if (mInitialTaskIntent != null) {
-            mSecondTaskPackageName = task.getTopComponent().getPackageName();
-        }
+        mSecondTaskPackageName = task.getTopComponent().getPackageName();
+    }
+
+    public void setSecondTask(Intent intent) {
+        mSecondTaskIntent = intent;
+        mSecondTaskPackageName = intent.getComponent().getPackageName();
     }
 
     /**
      * To be called when we want to launch split pairs from an existing GroupedTaskView.
      */
-    public void launchTasks(GroupedTaskView groupedTaskView,
-            Consumer<Boolean> callback, boolean freezeTaskList) {
+    public void launchTasks(GroupedTaskView groupedTaskView, Consumer<Boolean> callback,
+            boolean freezeTaskList) {
         mLaunchingTaskView = groupedTaskView;
         TaskView.TaskIdAttributeContainer[] taskIdAttributeContainers =
                 groupedTaskView.getTaskIdAttributeContainers();
@@ -194,22 +204,23 @@
      */
     public void launchTasks(int taskId1, int taskId2, @StagePosition int stagePosition,
             Consumer<Boolean> callback, boolean freezeTaskList, float splitRatio) {
-        launchTasks(taskId1, null /* taskPendingIntent */, null /* fillInIntent */, taskId2,
-                stagePosition, callback, freezeTaskList, splitRatio, null);
+        launchTasks(taskId1, null /* intent1 */, null /* packageName1 */, taskId2,
+                null /* intent2 */, null /* packageName2 */, stagePosition, callback,
+                freezeTaskList, splitRatio, null);
     }
 
     /**
      * To be called when we want to launch split pairs from Overview. Split can be initiated from
      * either Overview or home, or all apps. Either both taskIds are set, or a pending intent + a
      * fill in intent with a taskId2 are set.
-     * @param taskPendingIntent is null when split is initiated from Overview
+     * @param intent1 is null when split is initiated from Overview
      * @param stagePosition representing location of task1
      * @param shellInstanceId loggingId to be used by shell, will be non-null for actions that create
      *                   a split instance, null for cases that bring existing instaces to the
      *                   foreground (quickswitch, launching previous pairs from overview)
      */
-    public void launchTasks(int taskId1, @Nullable PendingIntent taskPendingIntent,
-            @Nullable Intent fillInIntent, int taskId2, @StagePosition int stagePosition,
+    public void launchTasks(int taskId1, @Nullable Intent intent1, String packageName1, int taskId2,
+            @Nullable Intent intent2, String packageName2, @StagePosition int stagePosition,
             Consumer<Boolean> callback, boolean freezeTaskList, float splitRatio,
             @Nullable InstanceId shellInstanceId) {
         TestLogging.recordEvent(
@@ -220,57 +231,107 @@
         }
         if (TaskAnimationManager.ENABLE_SHELL_TRANSITIONS) {
             final RemoteSplitLaunchTransitionRunner animationRunner =
-                    new RemoteSplitLaunchTransitionRunner(taskId1, taskPendingIntent, taskId2,
-                            callback);
+                    new RemoteSplitLaunchTransitionRunner(taskId1, taskId2, callback);
             final RemoteTransitionCompat remoteTransition = new RemoteTransitionCompat(
                     animationRunner, MAIN_EXECUTOR,
                     ActivityThread.currentActivityThread().getApplicationThread());
-            if (taskPendingIntent == null) {
+            if (intent1 == null && intent2 == null) {
                 mSystemUiProxy.startTasks(taskId1, options1.toBundle(), taskId2,
                         null /* options2 */, stagePosition, splitRatio, remoteTransition,
                         shellInstanceId);
+            } else if (intent2 == null) {
+                launchIntentOrShortcut(intent1, packageName2, options1, taskId2, stagePosition,
+                        splitRatio, remoteTransition, shellInstanceId);
+            } else if (intent1 == null) {
+                launchIntentOrShortcut(intent2, packageName1, options1, taskId1,
+                        getOppositeStagePosition(stagePosition), splitRatio, remoteTransition,
+                        shellInstanceId);
             } else {
-                final ShortcutInfo shortcutInfo = getShortcutInfo(mInitialTaskIntent,
-                        taskPendingIntent.getCreatorUserHandle());
-                if (shortcutInfo != null) {
-                    mSystemUiProxy.startShortcutAndTask(shortcutInfo,
-                            options1.toBundle(), taskId2, null /* options2 */, stagePosition,
-                            splitRatio, remoteTransition, shellInstanceId);
-                } else {
-                    mSystemUiProxy.startIntentAndTask(taskPendingIntent,
-                            fillInIntent, options1.toBundle(), taskId2, null /* options2 */,
-                            stagePosition, splitRatio, remoteTransition, shellInstanceId);
-                }
+                // TODO: the case when both split apps are started from an intent.
             }
         } else {
             final RemoteSplitLaunchAnimationRunner animationRunner =
-                    new RemoteSplitLaunchAnimationRunner(taskId1, taskPendingIntent, taskId2,
-                            callback);
+                    new RemoteSplitLaunchAnimationRunner(taskId1, taskId2, callback);
             final RemoteAnimationAdapter adapter = new RemoteAnimationAdapter(
                     RemoteAnimationAdapterCompat.wrapRemoteAnimationRunner(animationRunner),
                     300, 150,
                     ActivityThread.currentActivityThread().getApplicationThread());
 
-            if (taskPendingIntent == null) {
+            if (intent1 == null && intent2 == null) {
                 mSystemUiProxy.startTasksWithLegacyTransition(taskId1, options1.toBundle(),
                         taskId2, null /* options2 */, stagePosition, splitRatio, adapter,
                         shellInstanceId);
+            } else if (intent2 == null) {
+                launchIntentOrShortcutLegacy(intent1, packageName2, options1, taskId2,
+                        stagePosition, splitRatio, adapter, shellInstanceId);
+            } else if (intent1 == null) {
+                launchIntentOrShortcutLegacy(intent2, packageName1, options1, taskId1,
+                        getOppositeStagePosition(stagePosition), splitRatio, adapter,
+                        shellInstanceId);
             } else {
-                final ShortcutInfo shortcutInfo = getShortcutInfo(mInitialTaskIntent,
-                        taskPendingIntent.getCreatorUserHandle());
-                if (shortcutInfo != null) {
-                    mSystemUiProxy.startShortcutAndTaskWithLegacyTransition(shortcutInfo,
-                            options1.toBundle(), taskId2, null /* options2 */, stagePosition,
-                            splitRatio, adapter, shellInstanceId);
-                } else {
-                    mSystemUiProxy.startIntentAndTaskWithLegacyTransition(taskPendingIntent,
-                            fillInIntent, options1.toBundle(), taskId2, null /* options2 */,
-                            stagePosition, splitRatio, adapter, shellInstanceId);
-                }
+                // TODO: the case when both split apps are started from an intent.
             }
         }
     }
 
+    private void launchIntentOrShortcut(Intent intent, String otherTaskPackageName,
+            ActivityOptions options1, int taskId, @StagePosition int stagePosition,
+            float splitRatio, RemoteTransitionCompat remoteTransition,
+            @Nullable InstanceId shellInstanceId) {
+        PendingIntent pendingIntent = getPendingIntent(intent);
+        final ShortcutInfo shortcutInfo = getShortcutInfo(intent,
+                pendingIntent.getCreatorUserHandle());
+        if (shortcutInfo != null) {
+            mSystemUiProxy.startShortcutAndTask(shortcutInfo,
+                    options1.toBundle(), taskId, null /* options2 */, stagePosition,
+                    splitRatio, remoteTransition, shellInstanceId);
+        } else {
+            mSystemUiProxy.startIntentAndTask(pendingIntent,
+                    getFillInIntent(intent, otherTaskPackageName), options1.toBundle(), taskId,
+                    null /* options2 */, stagePosition, splitRatio, remoteTransition,
+                    shellInstanceId);
+        }
+    }
+
+    private void launchIntentOrShortcutLegacy(Intent intent, String otherTaskPackageName,
+            ActivityOptions options1, int taskId, @StagePosition int stagePosition,
+            float splitRatio, RemoteAnimationAdapter adapter,
+            @Nullable InstanceId shellInstanceId) {
+        PendingIntent pendingIntent = getPendingIntent(intent);
+        final ShortcutInfo shortcutInfo = getShortcutInfo(intent,
+                pendingIntent.getCreatorUserHandle());
+        if (shortcutInfo != null) {
+            mSystemUiProxy.startShortcutAndTaskWithLegacyTransition(shortcutInfo,
+                    options1.toBundle(), taskId, null /* options2 */, stagePosition,
+                    splitRatio, adapter, shellInstanceId);
+        } else {
+            mSystemUiProxy.startIntentAndTaskWithLegacyTransition(pendingIntent,
+                    getFillInIntent(intent, otherTaskPackageName), options1.toBundle(), taskId,
+                    null /* options2 */, stagePosition, splitRatio, adapter,
+                    shellInstanceId);
+        }
+    }
+
+    private PendingIntent getPendingIntent(Intent intent) {
+        return intent == null ? null : (mUser != null
+                ? PendingIntent.getActivityAsUser(mContext, 0, intent,
+                FLAG_MUTABLE, null /* options */, mUser)
+                : PendingIntent.getActivity(mContext, 0, intent, FLAG_MUTABLE));
+    }
+
+    private Intent getFillInIntent(Intent intent, String otherTaskPackageName) {
+        if (intent == null) {
+            return null;
+        }
+
+        Intent fillInIntent = new Intent();
+        if (TextUtils.equals(intent.getComponent().getPackageName(), otherTaskPackageName)) {
+            fillInIntent.addFlags(Intent.FLAG_ACTIVITY_MULTIPLE_TASK);
+        }
+        return fillInIntent;
+    }
+
+
     public @StagePosition int getActiveSplitStagePosition() {
         return mStagePosition;
     }
@@ -280,7 +341,7 @@
     }
 
     public void setRecentsAnimationRunning(boolean running) {
-        this.mRecentsAnimationRunning = running;
+        mRecentsAnimationRunning = running;
     }
 
     @Nullable
@@ -311,14 +372,12 @@
     private class RemoteSplitLaunchTransitionRunner implements RemoteTransitionRunner {
 
         private final int mInitialTaskId;
-        private final PendingIntent mInitialTaskPendingIntent;
         private final int mSecondTaskId;
         private final Consumer<Boolean> mSuccessCallback;
 
-        RemoteSplitLaunchTransitionRunner(int initialTaskId, PendingIntent initialTaskPendingIntent,
-                int secondTaskId, Consumer<Boolean> callback) {
+        RemoteSplitLaunchTransitionRunner(int initialTaskId, int secondTaskId,
+                Consumer<Boolean> callback) {
             mInitialTaskId = initialTaskId;
-            mInitialTaskPendingIntent = initialTaskPendingIntent;
             mSecondTaskId = secondTaskId;
             mSuccessCallback = callback;
         }
@@ -327,12 +386,11 @@
         public void startAnimation(@NonNull IBinder transition, @NonNull TransitionInfo info,
                 @NonNull SurfaceControl.Transaction t, @NonNull Runnable finishCallback) {
             TaskViewUtils.composeRecentsSplitLaunchAnimator(mLaunchingTaskView, mStateManager,
-                    mDepthController, mInitialTaskId, mInitialTaskPendingIntent, mSecondTaskId,
-                    info, t, () -> {
-                    finishCallback.run();
-                    if (mSuccessCallback != null) {
-                        mSuccessCallback.accept(true);
-                    }
+                    mDepthController, mInitialTaskId, mSecondTaskId, info, t, () -> {
+                        finishCallback.run();
+                        if (mSuccessCallback != null) {
+                            mSuccessCallback.accept(true);
+                        }
                 });
             // After successful launch, call resetState
             resetState();
@@ -346,14 +404,12 @@
     private class RemoteSplitLaunchAnimationRunner implements RemoteAnimationRunnerCompat {
 
         private final int mInitialTaskId;
-        private final PendingIntent mInitialTaskPendingIntent;
         private final int mSecondTaskId;
         private final Consumer<Boolean> mSuccessCallback;
 
-        RemoteSplitLaunchAnimationRunner(int initialTaskId, PendingIntent initialTaskPendingIntent,
-                int secondTaskId, Consumer<Boolean> successCallback) {
+        RemoteSplitLaunchAnimationRunner(int initialTaskId, int secondTaskId,
+                Consumer<Boolean> successCallback) {
             mInitialTaskId = initialTaskId;
-            mInitialTaskPendingIntent = initialTaskPendingIntent;
             mSecondTaskId = secondTaskId;
             mSuccessCallback = successCallback;
         }
@@ -364,9 +420,8 @@
                 Runnable finishedCallback) {
             postAsyncCallback(mHandler,
                     () -> TaskViewUtils.composeRecentsSplitLaunchAnimatorLegacy(
-                            mLaunchingTaskView, mInitialTaskId, mInitialTaskPendingIntent,
-                            mSecondTaskId, apps, wallpapers, nonApps, mStateManager,
-                            mDepthController, () -> {
+                            mLaunchingTaskView, mInitialTaskId, mSecondTaskId, apps, wallpapers,
+                            nonApps, mStateManager, mDepthController, () -> {
                                 finishedCallback.run();
                                 if (mSuccessCallback != null) {
                                     mSuccessCallback.accept(true);
@@ -394,7 +449,10 @@
     public void resetState() {
         mInitialTaskId = INVALID_TASK_ID;
         mInitialTaskIntent = null;
+        mInitialTaskPackageName = null;
         mSecondTaskId = INVALID_TASK_ID;
+        mSecondTaskIntent = null;
+        mSecondTaskPackageName = null;
         mStagePosition = SplitConfigurationOptions.STAGE_POSITION_UNDEFINED;
         mRecentsAnimationRunning = false;
         mLaunchingTaskView = null;
@@ -407,7 +465,7 @@
      *         chosen
      */
     public boolean isSplitSelectActive() {
-        return isInitialTaskIntentSet() && mSecondTaskId == INVALID_TASK_ID;
+        return isInitialTaskIntentSet() && !isSecondTaskIntentSet();
     }
 
     /**
@@ -415,7 +473,7 @@
      *          be launched
      */
     public boolean isBothSplitAppsConfirmed() {
-        return isInitialTaskIntentSet() && mSecondTaskId != INVALID_TASK_ID;
+        return isInitialTaskIntentSet() && isSecondTaskIntentSet();
     }
 
     private boolean isInitialTaskIntentSet() {
@@ -425,4 +483,16 @@
     public int getInitialTaskId() {
         return mInitialTaskId;
     }
+
+    private boolean isSecondTaskIntentSet() {
+        return (mSecondTaskId != INVALID_TASK_ID || mSecondTaskIntent != null);
+    }
+
+    public void setFirstFloatingTaskView(FloatingTaskView floatingTaskView) {
+        mFirstFloatingTaskView = floatingTaskView;
+    }
+
+    public FloatingTaskView getFirstFloatingTaskView() {
+        return mFirstFloatingTaskView;
+    }
 }
diff --git a/quickstep/src/com/android/quickstep/util/SplitWithKeyboardShortcutController.java b/quickstep/src/com/android/quickstep/util/SplitWithKeyboardShortcutController.java
new file mode 100644
index 0000000..3587bd1
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/util/SplitWithKeyboardShortcutController.java
@@ -0,0 +1,193 @@
+/*
+ * 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 static com.android.launcher3.config.FeatureFlags.ENABLE_SPLIT_FROM_FULLSCREEN_WITH_KEYBOARD_SHORTCUTS;
+import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_KEYBOARD_SHORTCUT_SPLIT_LEFT_TOP;
+import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_KEYBOARD_SHORTCUT_SPLIT_RIGHT_BOTTOM;
+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.SplitConfigurationOptions.STAGE_POSITION_BOTTOM_OR_RIGHT;
+import static com.android.launcher3.util.SplitConfigurationOptions.STAGE_POSITION_TOP_OR_LEFT;
+
+import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
+import android.app.ActivityManager;
+import android.content.Intent;
+import android.graphics.Rect;
+import android.graphics.RectF;
+import android.os.SystemClock;
+import android.os.UserHandle;
+import android.view.View;
+
+import androidx.annotation.BinderThread;
+
+import com.android.launcher3.LauncherSettings;
+import com.android.launcher3.R;
+import com.android.launcher3.anim.PendingAnimation;
+import com.android.launcher3.model.data.WorkspaceItemInfo;
+import com.android.launcher3.uioverrides.QuickstepLauncher;
+import com.android.quickstep.OverviewCommandHelper;
+import com.android.quickstep.OverviewComponentObserver;
+import com.android.quickstep.RecentsAnimationCallbacks;
+import com.android.quickstep.RecentsAnimationController;
+import com.android.quickstep.RecentsAnimationDeviceState;
+import com.android.quickstep.RecentsAnimationTargets;
+import com.android.quickstep.RecentsModel;
+import com.android.quickstep.SystemUiProxy;
+import com.android.quickstep.views.FloatingTaskView;
+import com.android.quickstep.views.RecentsView;
+import com.android.systemui.shared.recents.model.Task;
+import com.android.systemui.shared.system.ActivityManagerWrapper;
+
+/** Transitions app from fullscreen to stage split when triggered from keyboard shortcuts. */
+public class SplitWithKeyboardShortcutController {
+
+    private final QuickstepLauncher mLauncher;
+    private final SplitSelectStateController mController;
+    private final OverviewComponentObserver mOverviewComponentObserver;
+
+    private final int mSplitPlaceholderSize;
+    private final int mSplitPlaceholderInset;
+
+    public SplitWithKeyboardShortcutController(QuickstepLauncher launcher,
+            SplitSelectStateController controller) {
+        mLauncher = launcher;
+        mController = controller;
+        RecentsAnimationDeviceState deviceState = new RecentsAnimationDeviceState(
+                launcher.getApplicationContext());
+        mOverviewComponentObserver = new OverviewComponentObserver(launcher.getApplicationContext(),
+                deviceState);
+
+        mSplitPlaceholderSize = mLauncher.getResources().getDimensionPixelSize(
+                R.dimen.split_placeholder_size);
+        mSplitPlaceholderInset = mLauncher.getResources().getDimensionPixelSize(
+                R.dimen.split_placeholder_inset);
+    }
+
+    @BinderThread
+    public void enterStageSplit(boolean leftOrTop) {
+        if (!ENABLE_SPLIT_FROM_FULLSCREEN_WITH_KEYBOARD_SHORTCUTS.get()) {
+            return;
+        }
+        RecentsAnimationCallbacks callbacks = new RecentsAnimationCallbacks(
+                SystemUiProxy.INSTANCE.get(mLauncher.getApplicationContext()),
+                false /* allowMinimizeSplitScreen */);
+        SplitWithKeyboardShortcutRecentsAnimationListener listener =
+                new SplitWithKeyboardShortcutRecentsAnimationListener(leftOrTop);
+
+        MAIN_EXECUTOR.execute(() -> {
+            callbacks.addListener(listener);
+            UI_HELPER_EXECUTOR.execute(
+                    // Transition from fullscreen app to enter stage split in launcher with
+                    // recents animation.
+                    () -> ActivityManagerWrapper.getInstance().startRecentsActivity(
+                            mOverviewComponentObserver.getOverviewIntent(),
+                            SystemClock.uptimeMillis(), callbacks, null, null));
+        });
+    }
+
+    /**
+     * Handles second app selection from stage split. If the item can't be opened in split or
+     * it's not in stage split state, we pass it onto Launcher's default item click handler.
+     */
+    public boolean handleSecondAppSelectionForSplit(View view) {
+        if (!ENABLE_SPLIT_FROM_FULLSCREEN_WITH_KEYBOARD_SHORTCUTS.get()
+                || !mController.isSplitSelectActive()) {
+            return false;
+        }
+        Object tag = view.getTag();
+        Intent intent;
+        if (tag instanceof WorkspaceItemInfo) {
+            final WorkspaceItemInfo workspaceItemInfo = (WorkspaceItemInfo) tag;
+            intent = workspaceItemInfo.intent;
+        } else if (tag instanceof com.android.launcher3.model.data.AppInfo) {
+            final com.android.launcher3.model.data.AppInfo appInfo =
+                    (com.android.launcher3.model.data.AppInfo) tag;
+            intent = appInfo.intent;
+        } else {
+            return false;
+        }
+        mController.setSecondTask(intent);
+        mController.launchSplitTasks(aBoolean -> mLauncher.getDragLayer().removeView(
+                mController.getFirstFloatingTaskView()));
+        return true;
+    }
+
+    public void onDestroy() {
+        mOverviewComponentObserver.onDestroy();
+    }
+
+    private class SplitWithKeyboardShortcutRecentsAnimationListener implements
+            RecentsAnimationCallbacks.RecentsAnimationListener {
+
+        private final boolean mLeftOrTop;
+        private final Rect mTempRect = new Rect();
+
+        private SplitWithKeyboardShortcutRecentsAnimationListener(boolean leftOrTop) {
+            mLeftOrTop = leftOrTop;
+        }
+
+        @Override
+        public void onRecentsAnimationStart(RecentsAnimationController controller,
+                RecentsAnimationTargets targets) {
+            ActivityManager.RunningTaskInfo runningTaskInfo =
+                    ActivityManagerWrapper.getInstance().getRunningTask();
+            mController.setInitialTaskSelect(runningTaskInfo,
+                    mLeftOrTop ? STAGE_POSITION_TOP_OR_LEFT : STAGE_POSITION_BOTTOM_OR_RIGHT,
+                    null /* itemInfo */,
+                    mLeftOrTop ? LAUNCHER_KEYBOARD_SHORTCUT_SPLIT_LEFT_TOP
+                            : LAUNCHER_KEYBOARD_SHORTCUT_SPLIT_RIGHT_BOTTOM);
+
+            RecentsView recentsView = mLauncher.getOverviewPanel();
+            recentsView.getPagedOrientationHandler().getInitialSplitPlaceholderBounds(
+                    mSplitPlaceholderSize, mSplitPlaceholderInset, mLauncher.getDeviceProfile(),
+                    mController.getActiveSplitStagePosition(), mTempRect);
+
+            PendingAnimation anim = new PendingAnimation(
+                    SplitAnimationTimings.TABLET_HOME_TO_SPLIT.getDuration());
+            RectF startingTaskRect = new RectF();
+            final FloatingTaskView floatingTaskView = FloatingTaskView.getFloatingTaskView(
+                    mLauncher, mLauncher.getDragLayer(),
+                    controller.screenshotTask(runningTaskInfo.taskId).thumbnail,
+                    null /* icon */, startingTaskRect);
+            RecentsModel.INSTANCE.get(mLauncher.getApplicationContext())
+                    .getIconCache()
+                    .updateIconInBackground(
+                            Task.from(new Task.TaskKey(runningTaskInfo), runningTaskInfo,
+                                    false /* isLocked */),
+                            (task) -> {
+                                if (task.thumbnail != null) {
+                                    floatingTaskView.setIcon(task.thumbnail.thumbnail);
+                                }
+                            });
+            floatingTaskView.setAlpha(1);
+            floatingTaskView.addStagingAnimation(anim, startingTaskRect, mTempRect,
+                    false /* fadeWithThumbnail */, true /* isStagedTask */);
+            mController.setFirstFloatingTaskView(floatingTaskView);
+
+            anim.addListener(new AnimatorListenerAdapter() {
+                @Override
+                public void onAnimationStart(Animator animation) {
+                    controller.finish(true /* toRecents */, null /* onFinishComplete */,
+                            false /* sendUserLeaveHint */);
+                }
+            });
+            anim.buildAnim().start();
+        }
+    };
+}
diff --git a/quickstep/src/com/android/quickstep/views/FloatingTaskView.java b/quickstep/src/com/android/quickstep/views/FloatingTaskView.java
index dc1ae52..1d421b2 100644
--- a/quickstep/src/com/android/quickstep/views/FloatingTaskView.java
+++ b/quickstep/src/com/android/quickstep/views/FloatingTaskView.java
@@ -11,6 +11,7 @@
 import android.graphics.Paint;
 import android.graphics.Rect;
 import android.graphics.RectF;
+import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.Drawable;
 import android.util.AttributeSet;
 import android.util.FloatProperty;
@@ -74,6 +75,7 @@
         }
     };
 
+    private int mSplitHolderSize;
     private FloatingTaskThumbnailView mThumbnailView;
     private SplitPlaceholderView mSplitPlaceholderView;
     private RectF mStartingPosition;
@@ -97,6 +99,9 @@
         mActivity = BaseActivity.fromContext(context);
         mIsRtl = Utilities.isRtl(getResources());
         mFullscreenParams = new FullscreenDrawParams(context);
+
+        mSplitHolderSize = context.getResources().getDimensionPixelSize(
+                R.dimen.split_placeholder_icon_size);
     }
 
     @Override
@@ -126,8 +131,7 @@
         RecentsView recentsView = launcher.getOverviewPanel();
         mOrientationHandler = recentsView.getPagedOrientationHandler();
         mStagePosition = recentsView.getSplitSelectController().getActiveSplitStagePosition();
-        mSplitPlaceholderView.setIcon(icon,
-                mContext.getResources().getDimensionPixelSize(R.dimen.split_placeholder_icon_size));
+        mSplitPlaceholderView.setIcon(icon, mSplitHolderSize);
         mSplitPlaceholderView.getIconView().setRotation(mOrientationHandler.getDegreesRotated());
     }
 
@@ -193,6 +197,10 @@
         mSplitPlaceholderView.getIconView().setRotation(mOrientationHandler.getDegreesRotated());
     }
 
+    public void setIcon(Bitmap icon) {
+        mSplitPlaceholderView.setIcon(new BitmapDrawable(icon), mSplitHolderSize);
+    }
+
     protected void initPosition(RectF pos, InsettableFrameLayout.LayoutParams lp) {
         mStartingPosition.set(pos);
         lp.ignoreInsets = true;
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index ce96b71..e56b7b9 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -4184,7 +4184,7 @@
     public void initiateSplitSelect(TaskView taskView, @StagePosition int stagePosition,
             StatsLogManager.EventEnum splitEvent) {
         mSplitHiddenTaskView = taskView;
-        mSplitSelectStateController.setInitialTaskSelect(taskView.getTask().key.id,
+        mSplitSelectStateController.setInitialTaskSelect(taskView.getTask(),
                 stagePosition, splitEvent, taskView.getItemInfo());
         mSplitHiddenTaskViewIndex = indexOfChild(taskView);
         finishRecentsAnimation(true /* toRecents */, false /* shouldPip */,
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index dbe5bd6..c5c5385 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -1332,7 +1332,7 @@
         BubbleTextView favorite = (BubbleTextView) LayoutInflater.from(parent.getContext())
                 .inflate(R.layout.app_icon, parent, false);
         favorite.applyFromWorkspaceItem(info);
-        favorite.setOnClickListener(ItemClickHandler.INSTANCE);
+        favorite.setOnClickListener(getItemOnClickListener());
         favorite.setOnFocusChangeListener(mFocusHandler);
         return favorite;
     }
diff --git a/src/com/android/launcher3/config/FeatureFlags.java b/src/com/android/launcher3/config/FeatureFlags.java
index 037a77e..694536c 100644
--- a/src/com/android/launcher3/config/FeatureFlags.java
+++ b/src/com/android/launcher3/config/FeatureFlags.java
@@ -253,6 +253,10 @@
             "ENABLE_SPLIT_FROM_WORKSPACE", true,
             "Enable initiating split screen from workspace.");
 
+    public static final BooleanFlag ENABLE_SPLIT_FROM_FULLSCREEN_WITH_KEYBOARD_SHORTCUTS =
+            getDebugFlag("ENABLE_SPLIT_FROM_FULLSCREEN_SHORTCUT", false,
+                    "Enable splitting from fullscreen app with keyboard shortcuts");
+
     public static final BooleanFlag ENABLE_NEW_MIGRATION_LOGIC = getDebugFlag(
             "ENABLE_NEW_MIGRATION_LOGIC", true,
             "Enable the new grid migration logic, keeping pages when src < dest");
diff --git a/src/com/android/launcher3/logging/StatsLogManager.java b/src/com/android/launcher3/logging/StatsLogManager.java
index bd01d51..fcc5d86 100644
--- a/src/com/android/launcher3/logging/StatsLogManager.java
+++ b/src/com/android/launcher3/logging/StatsLogManager.java
@@ -617,6 +617,11 @@
         @UiEvent(doc = "Number of apps in A-Z list (personal and work profile)")
         LAUNCHER_ALLAPPS_COUNT(1225),
 
+        @UiEvent(doc = "User has invoked split to right half with a keyboard shortcut.")
+        LAUNCHER_KEYBOARD_SHORTCUT_SPLIT_RIGHT_BOTTOM(1232),
+
+        @UiEvent(doc = "User has invoked split to left half with a keyboard shortcut.")
+        LAUNCHER_KEYBOARD_SHORTCUT_SPLIT_LEFT_TOP(1233)
         ;
 
         // ADD MORE
diff --git a/src/com/android/launcher3/statemanager/StatefulActivity.java b/src/com/android/launcher3/statemanager/StatefulActivity.java
index 2a890c3..520f33c 100644
--- a/src/com/android/launcher3/statemanager/StatefulActivity.java
+++ b/src/com/android/launcher3/statemanager/StatefulActivity.java
@@ -231,4 +231,10 @@
      * etc.)
      */
     protected abstract void onHandleConfigurationChanged();
+
+    /**
+     * Enter staged split directly from the current running app.
+     * @param leftOrTop if the staged split will be positioned left or top.
+     */
+    public void enterStageSplitFromRunningApp(boolean leftOrTop) { }
 }
diff --git a/src/com/android/launcher3/util/SplitConfigurationOptions.java b/src/com/android/launcher3/util/SplitConfigurationOptions.java
index 3eff783..19a3948 100644
--- a/src/com/android/launcher3/util/SplitConfigurationOptions.java
+++ b/src/com/android/launcher3/util/SplitConfigurationOptions.java
@@ -182,4 +182,12 @@
                 ? LAUNCHER_APP_ICON_MENU_SPLIT_LEFT_TOP
                 : LAUNCHER_APP_ICON_MENU_SPLIT_RIGHT_BOTTOM;
     }
+
+    public static @StagePosition int getOppositeStagePosition(@StagePosition int position) {
+        if (position == STAGE_POSITION_UNDEFINED) {
+            return position;
+        }
+        return position == STAGE_POSITION_TOP_OR_LEFT ? STAGE_POSITION_BOTTOM_OR_RIGHT
+                : STAGE_POSITION_TOP_OR_LEFT;
+    }
 }