diff --git a/go/quickstep/src/com/android/quickstep/views/GoOverviewActionsView.java b/go/quickstep/src/com/android/quickstep/views/GoOverviewActionsView.java
index 046661b..4e0aec3 100644
--- a/go/quickstep/src/com/android/quickstep/views/GoOverviewActionsView.java
+++ b/go/quickstep/src/com/android/quickstep/views/GoOverviewActionsView.java
@@ -35,6 +35,7 @@
  */
 public class GoOverviewActionsView extends OverviewActionsView<OverlayUICallbacksGo> {
 
+    @Nullable
     private ArrowTipView mArrowTipView;
 
     public GoOverviewActionsView(Context context) {
diff --git a/quickstep/src/com/android/launcher3/model/AppEventProducer.java b/quickstep/src/com/android/launcher3/model/AppEventProducer.java
index 1305bbc..7c29c5b 100644
--- a/quickstep/src/com/android/launcher3/model/AppEventProducer.java
+++ b/quickstep/src/com/android/launcher3/model/AppEventProducer.java
@@ -271,9 +271,6 @@
             case ALL_APPS_CONTAINER: {
                 return "all-apps";
             }
-            case SEARCH_RESULT_CONTAINER: {
-                return "search-results";
-            }
             case PREDICTED_HOTSEAT_CONTAINER: {
                 return "predictions/hotseat";
             }
@@ -293,6 +290,16 @@
                 }
                 return "folder";
             }
+            case SEARCH_RESULT_CONTAINER:
+                return "search-results";
+            case EXTENDED_CONTAINERS: {
+                switch(ci.getExtendedContainers().getContainerCase()) {
+                    case DEVICE_SEARCH_RESULT_CONTAINER:
+                    case CORRECTED_DEVICE_SEARCH_RESULT_CONTAINER:
+                        return "search-results";
+                }
+            }
+            default: // fall out
         }
         return "";
     }
diff --git a/quickstep/src/com/android/launcher3/model/QuickstepModelDelegate.java b/quickstep/src/com/android/launcher3/model/QuickstepModelDelegate.java
index 7794d27..e82c900 100644
--- a/quickstep/src/com/android/launcher3/model/QuickstepModelDelegate.java
+++ b/quickstep/src/com/android/launcher3/model/QuickstepModelDelegate.java
@@ -329,6 +329,8 @@
         }
         if (state.predictor != null) {
             state.predictor.notifyAppTargetEvent(event);
+            Log.d(TAG, "notifyAppTargetEvent action=" + event.getAction()
+                    + " launchLocation=" + event.getLaunchLocation());
         }
     }
 
diff --git a/quickstep/src/com/android/quickstep/BaseActivityInterface.java b/quickstep/src/com/android/quickstep/BaseActivityInterface.java
index f9b749e..e15aa92 100644
--- a/quickstep/src/com/android/quickstep/BaseActivityInterface.java
+++ b/quickstep/src/com/android/quickstep/BaseActivityInterface.java
@@ -322,11 +322,11 @@
     public final void calculateGridTaskSize(Context context, DeviceProfile dp, Rect outRect,
             PagedOrientationHandler orientedState) {
         Resources res = context.getResources();
-        Rect gridRect = new Rect();
-        calculateGridSize(context, dp, gridRect);
+        Rect taskRect = new Rect();
+        calculateTaskSize(context, dp, taskRect);
 
         float rowHeight =
-                (gridRect.height() + dp.overviewTaskThumbnailTopMarginPx - dp.overviewRowSpacing)
+                (taskRect.height() + dp.overviewTaskThumbnailTopMarginPx - dp.overviewRowSpacing)
                         / 2f;
 
         PointF taskDimension = getTaskDimension(context, dp);
@@ -336,7 +336,7 @@
 
         int gravity = Gravity.TOP;
         gravity |= orientedState.getRecentsRtlSetting(res) ? Gravity.RIGHT : Gravity.LEFT;
-        Gravity.apply(gravity, outWidth, outHeight, gridRect, outRect);
+        Gravity.apply(gravity, outWidth, outHeight, taskRect, outRect);
     }
 
     /**
diff --git a/quickstep/src/com/android/quickstep/TaskViewUtils.java b/quickstep/src/com/android/quickstep/TaskViewUtils.java
index 67a94cc..ae3cc50 100644
--- a/quickstep/src/com/android/quickstep/TaskViewUtils.java
+++ b/quickstep/src/com/android/quickstep/TaskViewUtils.java
@@ -215,6 +215,7 @@
                     tvsLocal.taskSecondaryTranslation.value = gridTranslationSecondary;
                 }
                 tvsLocal.setScroll(startScroll);
+                tvsLocal.setIsGridTask(v.isGridTask());
 
                 // Fade in the task during the initial 20% of the animation
                 out.addFloat(targetHandle.getTransformParams(), TransformParams.TARGET_ALPHA, 0, 1,
diff --git a/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java b/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
index e1afa97..b32c4e5 100644
--- a/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
+++ b/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
@@ -21,8 +21,10 @@
 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.app.ActivityOptions;
 import android.app.ActivityThread;
 import android.graphics.Rect;
+import android.os.Bundle;
 import android.os.Handler;
 import android.os.IBinder;
 import android.view.RemoteAnimationAdapter;
@@ -78,14 +80,15 @@
      */
     public void setSecondTaskId(Task taskView, Consumer<Boolean> callback) {
         mSecondTask = taskView;
-        launchTasks(mInitialTask, mSecondTask, mStagePosition, callback);
+        launchTasks(mInitialTask, mSecondTask, mStagePosition, callback,
+                false /* freezeTaskList */);
     }
 
     /**
      * @param stagePosition representing location of task1
      */
     public void launchTasks(Task task1, Task task2, @StagePosition int stagePosition,
-            Consumer<Boolean> callback) {
+            Consumer<Boolean> callback, boolean freezeTaskList) {
         // Assume initial task is for top/left part of screen
         final int[] taskIds = stagePosition == STAGE_POSITION_TOP_OR_LEFT
                 ? new int[]{task1.key.id, task2.key.id}
@@ -105,8 +108,13 @@
                     300, 150,
                     ActivityThread.currentActivityThread().getApplicationThread());
 
-            mSystemUiProxy.startTasksWithLegacyTransition(taskIds[0], null /* mainOptions */,
-                    taskIds[1], null /* sideOptions */, STAGE_POSITION_BOTTOM_OR_RIGHT, adapter);
+            ActivityOptions mainOpts = ActivityOptions.makeBasic();
+            if (freezeTaskList) {
+                mainOpts.setFreezeRecentTasksReordering();
+            }
+            mSystemUiProxy.startTasksWithLegacyTransition(taskIds[0], mainOpts.toBundle(),
+                    taskIds[1], null /* sideOptions */, STAGE_POSITION_BOTTOM_OR_RIGHT,
+                    adapter);
         }
     }
 
diff --git a/quickstep/src/com/android/quickstep/util/TaskViewSimulator.java b/quickstep/src/com/android/quickstep/util/TaskViewSimulator.java
index 280b5d7..146d235 100644
--- a/quickstep/src/com/android/quickstep/util/TaskViewSimulator.java
+++ b/quickstep/src/com/android/quickstep/util/TaskViewSimulator.java
@@ -101,6 +101,7 @@
     private int mOrientationStateId;
     private StagedSplitBounds mStagedSplitBounds;
     private boolean mDrawsBelowRecents;
+    private boolean mIsGridTask;
 
     public TaskViewSimulator(Context context, BaseActivityInterface sizeStrategy) {
         mContext = context;
@@ -140,18 +141,23 @@
         if (mDp == null) {
             return 1;
         }
-        Rect fullTaskSize = new Rect();
-        mSizeStrategy.calculateTaskSize(mContext, mDp, fullTaskSize);
+        if (mIsGridTask) {
+            mSizeStrategy.calculateGridTaskSize(mContext, mDp, mTaskRect,
+                    mOrientationState.getOrientationHandler());
+        } else {
+            mSizeStrategy.calculateTaskSize(mContext, mDp, mTaskRect);
+        }
 
+        Rect fullTaskSize;
         if (mStagedSplitBounds != null) {
             // The task rect changes according to the staged split task sizes, but recents
             // fullscreen scale and pivot remains the same since the task fits into the existing
             // sized task space bounds
-            mSizeStrategy.calculateTaskSize(mContext, mDp, mTaskRect);
+            fullTaskSize = new Rect(mTaskRect);
             mOrientationState.getOrientationHandler()
                     .setSplitTaskSwipeRect(mDp, mTaskRect, mStagedSplitBounds, mStagePosition);
         } else {
-            mTaskRect.set(fullTaskSize);
+            fullTaskSize = mTaskRect;
         }
         return mOrientationState.getFullScreenScaleAndPivot(fullTaskSize, mDp, mPivot);
     }
@@ -205,6 +211,13 @@
     }
 
     /**
+     * Sets whether the task is part of overview grid and not being focused.
+     */
+    public void setIsGridTask(boolean isGridTask) {
+        mIsGridTask = isGridTask;
+    }
+
+    /**
      * Adds animation for all the components corresponding to transition from an app to overview.
      */
     public void addAppToOverviewAnim(PendingAnimation pa, TimeInterpolator interpolator) {
diff --git a/quickstep/src/com/android/quickstep/views/AllAppsEduView.java b/quickstep/src/com/android/quickstep/views/AllAppsEduView.java
index e9d7c3c..d79b318 100644
--- a/quickstep/src/com/android/quickstep/views/AllAppsEduView.java
+++ b/quickstep/src/com/android/quickstep/views/AllAppsEduView.java
@@ -35,6 +35,7 @@
 import android.view.MotionEvent;
 import android.view.View;
 
+import androidx.annotation.Nullable;
 import androidx.core.graphics.ColorUtils;
 
 import com.android.launcher3.AbstractFloatingView;
@@ -58,6 +59,7 @@
     private Launcher mLauncher;
     private AllAppsEduTouchController mTouchController;
 
+    @Nullable
     private AnimatorSet mAnimation;
 
     private GradientDrawable mCircle;
diff --git a/quickstep/src/com/android/quickstep/views/DigitalWellBeingToast.java b/quickstep/src/com/android/quickstep/views/DigitalWellBeingToast.java
index c8a72cd..a770fc6 100644
--- a/quickstep/src/com/android/quickstep/views/DigitalWellBeingToast.java
+++ b/quickstep/src/com/android/quickstep/views/DigitalWellBeingToast.java
@@ -44,6 +44,7 @@
 import android.widget.FrameLayout;
 import android.widget.TextView;
 
+import androidx.annotation.Nullable;
 import androidx.annotation.StringRes;
 
 import com.android.launcher3.BaseActivity;
@@ -69,6 +70,7 @@
     private Task mTask;
     private boolean mHasLimit;
     private long mAppRemainingTimeMs;
+    @Nullable
     private View mBanner;
     private ViewOutlineProvider mOldBannerOutlineProvider;
     private float mBannerOffsetPercentage;
@@ -229,7 +231,7 @@
                 task.titleDescription;
     }
 
-    private void replaceBanner(View view) {
+    private void replaceBanner(@Nullable View view) {
         resetOldBanner();
         setBanner(view);
     }
@@ -243,7 +245,7 @@
         }
     }
 
-    private void setBanner(View view) {
+    private void setBanner(@Nullable View view) {
         mBanner = view;
         if (view != null) {
             setupAndAddBanner();
diff --git a/quickstep/src/com/android/quickstep/views/FloatingWidgetBackgroundView.java b/quickstep/src/com/android/quickstep/views/FloatingWidgetBackgroundView.java
index 1548268..c3b166f 100644
--- a/quickstep/src/com/android/quickstep/views/FloatingWidgetBackgroundView.java
+++ b/quickstep/src/com/android/quickstep/views/FloatingWidgetBackgroundView.java
@@ -27,6 +27,8 @@
 import android.view.ViewOutlineProvider;
 import android.widget.RemoteViews.RemoteViewOutlineProvider;
 
+import androidx.annotation.Nullable;
+
 import com.android.launcher3.widget.LauncherAppWidgetHostView;
 import com.android.launcher3.widget.RoundedCornerEnforcement;
 
@@ -42,7 +44,9 @@
     private final DrawableProperties mForegroundProperties = new DrawableProperties();
     private final DrawableProperties mBackgroundProperties = new DrawableProperties();
 
+    @Nullable
     private Drawable mOriginalForeground;
+    @Nullable
     private Drawable mOriginalBackground;
     private float mFinalRadius;
     private float mInitialOutlineRadius;
@@ -50,7 +54,7 @@
     private boolean mIsUsingFallback;
     private View mSourceView;
 
-    FloatingWidgetBackgroundView(Context context, AttributeSet attrs, int defStyleAttr) {
+    FloatingWidgetBackgroundView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
         super(context, attrs, defStyleAttr);
         setOutlineProvider(new ViewOutlineProvider() {
             @Override
@@ -161,8 +165,10 @@
 
     /** Stores and modifies a drawable's properties through an animation. */
     private static class DrawableProperties {
+        @Nullable
         private Drawable mDrawable;
         private float mOriginalRadius;
+        @Nullable
         private float[] mOriginalRadii;
         private final float[] mTmpRadii = new float[8];
 
diff --git a/quickstep/src/com/android/quickstep/views/FloatingWidgetView.java b/quickstep/src/com/android/quickstep/views/FloatingWidgetView.java
index 463ed4b..8a5f42a 100644
--- a/quickstep/src/com/android/quickstep/views/FloatingWidgetView.java
+++ b/quickstep/src/com/android/quickstep/views/FloatingWidgetView.java
@@ -57,10 +57,14 @@
     private LauncherAppWidgetHostView mAppWidgetView;
     private View mAppWidgetBackgroundView;
     private RectF mBackgroundPosition;
+    @Nullable
     private GhostView mForegroundOverlayView;
 
+    @Nullable
     private Runnable mEndRunnable;
+    @Nullable
     private Runnable mFastFinishRunnable;
+    @Nullable
     private Runnable mOnTargetChangeRunnable;
     private boolean mAppTargetIsTranslucent;
 
diff --git a/quickstep/src/com/android/quickstep/views/GroupedTaskView.java b/quickstep/src/com/android/quickstep/views/GroupedTaskView.java
index eace227..30b55a8 100644
--- a/quickstep/src/com/android/quickstep/views/GroupedTaskView.java
+++ b/quickstep/src/com/android/quickstep/views/GroupedTaskView.java
@@ -14,7 +14,6 @@
 import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.R;
 import com.android.launcher3.util.RunnableList;
-import com.android.launcher3.util.SplitConfigurationOptions;
 import com.android.launcher3.util.SplitConfigurationOptions.StagedSplitBounds;
 import com.android.launcher3.util.TransformingTouchDelegate;
 import com.android.quickstep.RecentsModel;
@@ -40,10 +39,13 @@
  */
 public class GroupedTaskView extends TaskView {
 
+    @Nullable
     private Task mSecondaryTask;
     private TaskThumbnailView mSnapshotView2;
     private IconView mIconView2;
+    @Nullable
     private CancellableTask<ThumbnailData> mThumbnailLoadRequest2;
+    @Nullable
     private CancellableTask mIconLoadRequest2;
     private final float[] mIcon2CenterCoords = new float[2];
     private TransformingTouchDelegate mIcon2TouchDelegate;
@@ -154,21 +156,23 @@
         }
     }
 
+    @Nullable
     @Override
     public RunnableList launchTaskAnimated() {
         getRecentsView().getSplitPlaceholder().launchTasks(mTask, mSecondaryTask,
-                STAGE_POSITION_TOP_OR_LEFT, null /*callback*/);
+                STAGE_POSITION_TOP_OR_LEFT, null /*callback*/,
+                false /* freezeTaskList */);
         return null;
     }
 
     @Override
     public void launchTask(@NonNull Consumer<Boolean> callback, boolean freezeTaskList) {
         getRecentsView().getSplitPlaceholder().launchTasks(mTask, mSecondaryTask,
-                STAGE_POSITION_TOP_OR_LEFT, callback);
+                STAGE_POSITION_TOP_OR_LEFT, callback, freezeTaskList);
     }
 
     @Override
-    void refreshThumbnails(HashMap<Integer, ThumbnailData> thumbnailDatas) {
+    void refreshThumbnails(@Nullable HashMap<Integer, ThumbnailData> thumbnailDatas) {
         super.refreshThumbnails(thumbnailDatas);
         if (mSecondaryTask != null && thumbnailDatas != null) {
             final ThumbnailData thumbnailData = thumbnailDatas.get(mSecondaryTask.key.id);
@@ -241,4 +245,10 @@
                 taskIconHeight, mPrimaryTempRect, mSecondaryTempRect,
                 isRtl, deviceProfile, mSplitBoundsConfig);
     }
+
+    @Override
+    protected void updateSnapshotRadius() {
+        super.updateSnapshotRadius();
+        mSnapshotView2.setFullscreenParams(mCurrentFullscreenParams);
+    }
 }
diff --git a/quickstep/src/com/android/quickstep/views/IconView.java b/quickstep/src/com/android/quickstep/views/IconView.java
index 813e653..ccb1a99 100644
--- a/quickstep/src/com/android/quickstep/views/IconView.java
+++ b/quickstep/src/com/android/quickstep/views/IconView.java
@@ -23,6 +23,8 @@
 import android.view.Gravity;
 import android.view.View;
 
+import androidx.annotation.Nullable;
+
 import com.android.launcher3.Utilities;
 
 /**
@@ -31,6 +33,7 @@
  */
 public class IconView extends View {
 
+    @Nullable
     private Drawable mDrawable;
     private int mDrawableWidth, mDrawableHeight;
 
@@ -46,7 +49,10 @@
         super(context, attrs, defStyleAttr);
     }
 
-    public void setDrawable(Drawable d) {
+    /**
+     * Sets a {@link Drawable} to be displayed.
+     */
+    public void setDrawable(@Nullable Drawable d) {
         if (mDrawable != null) {
             mDrawable.setCallback(null);
         }
@@ -76,6 +82,7 @@
         mDrawable.setBounds(drawableRect);
     }
 
+    @Nullable
     public Drawable getDrawable() {
         return mDrawable;
     }
diff --git a/quickstep/src/com/android/quickstep/views/OverviewActionsView.java b/quickstep/src/com/android/quickstep/views/OverviewActionsView.java
index 5c0b50c..f3b6a63 100644
--- a/quickstep/src/com/android/quickstep/views/OverviewActionsView.java
+++ b/quickstep/src/com/android/quickstep/views/OverviewActionsView.java
@@ -90,8 +90,10 @@
     @ActionsDisabledFlags
     protected int mDisabledFlags;
 
+    @Nullable
     protected T mCallbacks;
 
+    @Nullable
     protected DeviceProfile mDp;
 
     public OverviewActionsView(Context context) {
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index 72e01bb..223ce1c 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -157,6 +157,7 @@
 import com.android.quickstep.TaskThumbnailCache;
 import com.android.quickstep.TaskViewUtils;
 import com.android.quickstep.ViewUtils;
+import com.android.quickstep.util.GroupTask;
 import com.android.quickstep.util.LayoutUtils;
 import com.android.quickstep.util.RecentsOrientedState;
 import com.android.quickstep.util.SplitScreenBounds;
@@ -166,7 +167,6 @@
 import com.android.quickstep.util.TransformParams;
 import com.android.quickstep.util.VibratorWrapper;
 import com.android.systemui.plugins.ResourceProvider;
-import com.android.quickstep.util.GroupTask;
 import com.android.systemui.shared.recents.model.Task;
 import com.android.systemui.shared.recents.model.Task.TaskKey;
 import com.android.systemui.shared.recents.model.ThumbnailData;
@@ -1018,8 +1018,10 @@
     }
 
     private TaskView getLastGridTaskView() {
-        IntArray topRowIdArray = getTopRowIdArray();
-        IntArray bottomRowIdArray = getBottomRowIdArray();
+        return getLastGridTaskView(getTopRowIdArray(), getBottomRowIdArray());
+    }
+
+    private TaskView getLastGridTaskView(IntArray topRowIdArray, IntArray bottomRowIdArray) {
         if (topRowIdArray.isEmpty() && bottomRowIdArray.isEmpty()) {
             return null;
         }
@@ -3145,38 +3147,23 @@
                                 }
                             }
 
-                            TaskView newLastGridTaskView = getLastGridTaskView();
+                            IntArray topRowIdArray = getTopRowIdArray();
+                            IntArray bottomRowIdArray = getBottomRowIdArray();
                             if (finalSnapToLastTask) {
                                 // If snapping to last task, find the last task after dismissal.
-                                pageToSnapTo = indexOfChild(newLastGridTaskView);
+                                pageToSnapTo = indexOfChild(
+                                        getLastGridTaskView(topRowIdArray, bottomRowIdArray));
                             } else if (taskViewIdToSnapTo != -1) {
                                 // If snapping to another page due to indices rearranging, find
                                 // the new index after dismissal & rearrange using the task view id.
                                 pageToSnapTo = indexOfChild(
                                         getTaskViewFromTaskViewId(taskViewIdToSnapTo));
-                                int taskViewToSnapToScroll = getScrollForPage(pageToSnapTo);
-                                int lastGridTaskScroll = getScrollForPage(
-                                        indexOfChild(newLastGridTaskView));
-                                if (!currentPageSnapsToEndOfGrid
-                                        && taskViewToSnapToScroll == lastGridTaskScroll) {
+                                if (!currentPageSnapsToEndOfGrid) {
                                     // If it wasn't snapped to one of the last pages, but is now
                                     // snapped to last pages, we'll need to compensate for the
-                                    // difference as last pages' scroll is the position where
-                                    // ClearAllButton is barely invisible, instead of aligned to
-                                    // mLastComputedTaskSize.
-                                    int normalTaskEnd = mIsRtl
-                                            ? mLastComputedTaskSize.right
-                                            : mLastComputedTaskSize.left;
-                                    int lastTaskStart = mIsRtl
-                                            ? mLastComputedGridSize.left
-                                            : mLastComputedGridSize.right;
-                                    // As snapped task is not the last task, it can only be the
-                                    // second last task.
-                                    int distanceToSnappedTaskEnd =
-                                            (mPageSpacing + mLastComputedGridTaskSize.width()) * 2;
-                                    int snappedTaskEnd = lastTaskStart + (mIsRtl
-                                            ? distanceToSnappedTaskEnd : -distanceToSnappedTaskEnd);
-                                    mCurrentPageScrollDiff += snappedTaskEnd - normalTaskEnd;
+                                    // offset from the page's scroll to its visual position.
+                                    mCurrentPageScrollDiff += getOffsetFromScrollPosition(
+                                            pageToSnapTo, topRowIdArray, bottomRowIdArray);
                                 }
                             }
                         }
@@ -4613,7 +4600,58 @@
                     overScrollShift, getUndampedOverScrollShift());
         }
         return getScrollForPage(pageIndex) - mOrientationHandler.getPrimaryScroll(this)
-                + overScrollShift;
+                + overScrollShift + getOffsetFromScrollPosition(pageIndex);
+    }
+
+    /**
+     * Returns how many pixels the page is offset from its scroll position.
+     */
+    private int getOffsetFromScrollPosition(int pageIndex) {
+        return getOffsetFromScrollPosition(pageIndex, getTopRowIdArray(), getBottomRowIdArray());
+    }
+
+    private int getOffsetFromScrollPosition(
+            int pageIndex, IntArray topRowIdArray, IntArray bottomRowIdArray) {
+        if (!showAsGrid()) {
+            return 0;
+        }
+
+        TaskView taskView = getTaskViewAt(pageIndex);
+        if (taskView == null) {
+            return 0;
+        }
+
+        TaskView lastGridTaskView = getLastGridTaskView(topRowIdArray, bottomRowIdArray);
+        if (lastGridTaskView == null) {
+            return 0;
+        }
+
+        if (getScrollForPage(pageIndex) != getScrollForPage(indexOfChild(lastGridTaskView))) {
+            return 0;
+        }
+
+        // Check distance from lastGridTaskView to taskView.
+        int lastGridTaskViewPosition =
+                getPositionInRow(lastGridTaskView, topRowIdArray, bottomRowIdArray);
+        int taskViewPosition = getPositionInRow(taskView, topRowIdArray, bottomRowIdArray);
+        int gridTaskSizeAndSpacing = mLastComputedGridTaskSize.width() + mPageSpacing;
+        int positionDiff = gridTaskSizeAndSpacing * (lastGridTaskViewPosition - taskViewPosition);
+
+        int lastTaskEnd = (mIsRtl
+                ? mLastComputedGridSize.left
+                : mLastComputedGridSize.right)
+                + (mIsRtl ? mPageSpacing : -mPageSpacing);
+        int taskEnd = lastTaskEnd + (mIsRtl ? positionDiff : -positionDiff);
+        int normalTaskEnd = mIsRtl
+                ? mLastComputedGridTaskSize.left
+                : mLastComputedGridTaskSize.right;
+        return taskEnd - normalTaskEnd;
+    }
+
+    private int getPositionInRow(
+            TaskView taskView, IntArray topRowIdArray, IntArray bottomRowIdArray) {
+        int position = topRowIdArray.indexOf(taskView.getTaskViewId());
+        return position != -1 ? position : bottomRowIdArray.indexOf(taskView.getTaskViewId());
     }
 
     /**
diff --git a/quickstep/src/com/android/quickstep/views/SplitPlaceholderView.java b/quickstep/src/com/android/quickstep/views/SplitPlaceholderView.java
index 845e13e..04a5761 100644
--- a/quickstep/src/com/android/quickstep/views/SplitPlaceholderView.java
+++ b/quickstep/src/com/android/quickstep/views/SplitPlaceholderView.java
@@ -40,6 +40,7 @@
                 }
             };
 
+    @Nullable
     private IconView mIconView;
 
     public SplitPlaceholderView(Context context, AttributeSet attrs) {
diff --git a/quickstep/src/com/android/quickstep/views/TaskMenuView.java b/quickstep/src/com/android/quickstep/views/TaskMenuView.java
index d55b89c..853a023 100644
--- a/quickstep/src/com/android/quickstep/views/TaskMenuView.java
+++ b/quickstep/src/com/android/quickstep/views/TaskMenuView.java
@@ -39,6 +39,8 @@
 import android.widget.LinearLayout;
 import android.widget.TextView;
 
+import androidx.annotation.Nullable;
+
 import com.android.launcher3.AbstractFloatingView;
 import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.DeviceProfile;
@@ -67,6 +69,7 @@
 
     private BaseDraggingActivity mActivity;
     private TextView mTaskName;
+    @Nullable
     private AnimatorSet mOpenCloseAnimator;
     private TaskView mTaskView;
     private TaskIdAttributeContainer mTaskContainer;
diff --git a/quickstep/src/com/android/quickstep/views/TaskThumbnailView.java b/quickstep/src/com/android/quickstep/views/TaskThumbnailView.java
index d498428..c960f88 100644
--- a/quickstep/src/com/android/quickstep/views/TaskThumbnailView.java
+++ b/quickstep/src/com/android/quickstep/views/TaskThumbnailView.java
@@ -78,6 +78,7 @@
             };
 
     private final BaseActivity mActivity;
+    @Nullable
     private TaskOverlay mOverlay;
     private final Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
     private final Paint mBackgroundPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
@@ -90,8 +91,11 @@
     private final PreviewPositionHelper mPreviewPositionHelper = new PreviewPositionHelper();
     private TaskView.FullscreenDrawParams mFullscreenParams;
 
+    @Nullable
     private Task mTask;
+    @Nullable
     private ThumbnailData mThumbnailData;
+    @Nullable
     protected BitmapShader mBitmapShader;
 
     /** How much this thumbnail is dimmed, 0 not dimmed at all, 1 totally dimmed. */
@@ -141,7 +145,8 @@
      *                   upon swipe up so that a usable screenshot is accessible immediately when
      *                   recents animation needs to be finished / cancelled.
      */
-    public void setThumbnail(Task task, ThumbnailData thumbnailData, boolean refreshNow) {
+    public void setThumbnail(@Nullable Task task, @Nullable ThumbnailData thumbnailData,
+            boolean refreshNow) {
         mTask = task;
         mThumbnailData =
                 (thumbnailData != null && thumbnailData.thumbnail != null) ? thumbnailData : null;
@@ -151,7 +156,7 @@
     }
 
     /** See {@link #setThumbnail(Task, ThumbnailData, boolean)} */
-    public void setThumbnail(Task task, ThumbnailData thumbnailData) {
+    public void setThumbnail(@Nullable Task task, @Nullable ThumbnailData thumbnailData) {
         setThumbnail(task, thumbnailData, true /* refreshNow */);
     }
 
@@ -366,6 +371,10 @@
         return Utilities.makeColorTintingColorFilter(mDimColor, dimAmount);
     }
 
+    /**
+     * Returns current thumbnail or null if none is set.
+     */
+    @Nullable
     public Bitmap getThumbnail() {
         if (mThumbnailData == null) {
             return null;
diff --git a/quickstep/src/com/android/quickstep/views/TaskView.java b/quickstep/src/com/android/quickstep/views/TaskView.java
index 4132006..3da7893 100644
--- a/quickstep/src/com/android/quickstep/views/TaskView.java
+++ b/quickstep/src/com/android/quickstep/views/TaskView.java
@@ -92,7 +92,6 @@
 import com.android.quickstep.TaskUtils;
 import com.android.quickstep.TaskViewUtils;
 import com.android.quickstep.util.CancellableTask;
-import com.android.quickstep.util.LauncherSplitScreenListener;
 import com.android.quickstep.util.RecentsOrientedState;
 import com.android.quickstep.util.TaskCornerRadius;
 import com.android.quickstep.util.TransformParams;
@@ -361,6 +360,7 @@
 
     private final TaskOutlineProvider mOutlineProvider;
 
+    @Nullable
     protected Task mTask;
     protected TaskThumbnailView mSnapshotView;
     protected IconView mIconView;
@@ -369,7 +369,7 @@
     private float mGridProgress;
     private float mNonGridScale = 1;
     private float mDismissScale = 1;
-    private final FullscreenDrawParams mCurrentFullscreenParams;
+    protected final FullscreenDrawParams mCurrentFullscreenParams;
     protected final StatefulActivity mActivity;
 
     // Various causes of changing primary translation, which we aggregate to setTranslationX/Y().
@@ -395,6 +395,7 @@
     private float mSplitSelectTranslationX;
     private float mSplitSelectScrollOffsetPrimary;
 
+    @Nullable
     private ObjectAnimator mIconAndDimAnimator;
     private float mIconScaleAnimStartProgress = 0;
     private float mFocusTransitionProgress = 1;
@@ -412,7 +413,9 @@
     private boolean mShowScreenshot;
 
     // The current background requests to load the task thumbnail and icon
+    @Nullable
     private CancellableTask mThumbnailLoadRequest;
+    @Nullable
     private CancellableTask mIconLoadRequest;
 
     private boolean mEndQuickswitchCuj;
@@ -545,6 +548,7 @@
         return mTaskIdAttributeContainer;
     }
 
+    @Nullable
     public Task getTask() {
         return mTask;
     }
@@ -687,6 +691,7 @@
      * Starts the task associated with this view and animates the startup.
      * @return CompletionStage to indicate the animation completion or null if the launch failed.
      */
+    @Nullable
     public RunnableList launchTaskAnimated() {
         if (mTask != null) {
             TestLogging.recordEvent(
@@ -844,7 +849,7 @@
         }
     }
 
-    protected void setIcon(IconView iconView, Drawable icon) {
+    protected void setIcon(IconView iconView, @Nullable Drawable icon) {
         if (icon != null) {
             iconView.setDrawable(icon);
             iconView.setOnClickListener(v -> {
@@ -878,7 +883,7 @@
         LayoutParams snapshotParams = (LayoutParams) mSnapshotView.getLayoutParams();
         DeviceProfile deviceProfile = mActivity.getDeviceProfile();
         snapshotParams.topMargin = deviceProfile.overviewTaskThumbnailTopMarginPx;
-        boolean isGridTask = deviceProfile.overviewShowAsGrid && !isFocusedTask();
+        boolean isGridTask = isGridTask();
         int taskIconHeight = deviceProfile.overviewTaskIconSizePx;
         int taskMargin = isGridTask ? deviceProfile.overviewTaskMarginGridPx
                 : deviceProfile.overviewTaskMarginPx;
@@ -898,6 +903,14 @@
         mSnapshotView.getTaskOverlay().updateOrientationState(orientationState);
     }
 
+    /**
+     * Returns whether the task is part of overview grid and not being focused.
+     */
+    public boolean isGridTask() {
+        DeviceProfile deviceProfile = mActivity.getDeviceProfile();
+        return deviceProfile.overviewShowAsGrid && !isFocusedTask();
+    }
+
     private void setIconAndDimTransitionProgress(float progress, boolean invert) {
         if (invert) {
             progress = 1 - progress;
@@ -1374,7 +1387,7 @@
         invalidateOutline();
     }
 
-    void updateSnapshotRadius() {
+    protected void updateSnapshotRadius() {
         updateCurrentFullscreenParams(mSnapshotView.getPreviewPositionHelper());
         mSnapshotView.setFullscreenParams(mCurrentFullscreenParams);
     }
diff --git a/res/layout/all_apps_icon_twoline.xml b/res/layout/all_apps_icon_twoline.xml
new file mode 100644
index 0000000..54c7147
--- /dev/null
+++ b/res/layout/all_apps_icon_twoline.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2021 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.
+-->
+<com.android.launcher3.BubbleTextView xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:launcher="http://schemas.android.com/apk/res-auto"
+    style="@style/BaseIcon.AllApps"
+    android:id="@+id/icon"
+    android:singleLine="false"
+    android:lines="2"
+    android:inputType="textMultiLine"
+    launcher:iconDisplay="all_apps"
+    launcher:centerVertically="true" />
+
diff --git a/res/values/dimens.xml b/res/values/dimens.xml
index 4a6e5d5..ea6ddbe 100644
--- a/res/values/dimens.xml
+++ b/res/values/dimens.xml
@@ -112,8 +112,9 @@
     <dimen name="all_apps_divider_height">2dp</dimen>
     <dimen name="all_apps_divider_width">128dp</dimen>
     <dimen name="all_apps_content_fade_in_offset">150dp</dimen>
-
     <dimen name="all_apps_tip_bottom_margin">8dp</dimen>
+    <dimen name="all_apps_height_extra">6dp</dimen>
+
     <!-- The size of corner radius of the arrow in the arrow toast. -->
     <dimen name="arrow_toast_corner_radius">2dp</dimen>
     <dimen name="arrow_toast_elevation">2dp</dimen>
diff --git a/res/values/strings.xml b/res/values/strings.xml
index e215c20..5f53d4e 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -40,9 +40,9 @@
     <!-- Options for recent tasks -->
     <!-- Title for an option to enter split screen mode for a given app -->
     <string name="recent_task_option_split_screen">Split screen</string>
-    <string translatable="false" name="split_screen_position_top">Pin to top</string>
-    <string translatable="false" name="split_screen_position_left">Pin to left</string>
-    <string translatable="false" name="split_screen_position_right">Pin to right</string>
+    <string translatable="false" name="split_screen_position_top">Split top</string>
+    <string translatable="false" name="split_screen_position_left">Split left</string>
+    <string translatable="false" name="split_screen_position_right">Split right</string>
 
     <!-- Widgets -->
     <!-- Message to tell the user to press and hold on a widget to add it [CHAR_LIMIT=50] -->
diff --git a/src/com/android/launcher3/allapps/AllAppsGridAdapter.java b/src/com/android/launcher3/allapps/AllAppsGridAdapter.java
index f089551..d5c9a53 100644
--- a/src/com/android/launcher3/allapps/AllAppsGridAdapter.java
+++ b/src/com/android/launcher3/allapps/AllAppsGridAdapter.java
@@ -41,6 +41,7 @@
 import com.android.launcher3.BaseDraggingActivity;
 import com.android.launcher3.BubbleTextView;
 import com.android.launcher3.R;
+import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.model.data.AppInfo;
 import com.android.launcher3.model.data.ItemInfoWithIcon;
 import com.android.launcher3.util.PackageManagerHelper;
@@ -273,6 +274,8 @@
     // The intent to send off to the market app, updated each time the search query changes.
     private Intent mMarketSearchIntent;
 
+    private final int mExtraHeight;
+
     public AllAppsGridAdapter(BaseDraggingActivity launcher, LayoutInflater inflater,
             AlphabeticalAppsList apps, BaseAdapterProvider[] adapterProviders) {
         Resources res = launcher.getResources();
@@ -288,6 +291,7 @@
 
         mAdapterProviders = adapterProviders;
         setAppsPerRow(mLauncher.getDeviceProfile().numShownAllAppsColumns);
+        mExtraHeight = launcher.getResources().getDimensionPixelSize(R.dimen.all_apps_height_extra);
     }
 
     public void setAppsPerRow(int appsPerRow) {
@@ -347,14 +351,19 @@
     public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
         switch (viewType) {
             case VIEW_TYPE_ICON:
+                int layout = !FeatureFlags.ENABLE_TWOLINE_ALLAPPS.get() ? R.layout.all_apps_icon
+                        : R.layout.all_apps_icon_twoline;
                 BubbleTextView icon = (BubbleTextView) mLayoutInflater.inflate(
-                        R.layout.all_apps_icon, parent, false);
+                        layout, parent, false);
                 icon.setLongPressTimeoutFactor(1f);
                 icon.setOnFocusChangeListener(mIconFocusListener);
                 icon.setOnClickListener(mOnIconClickListener);
                 icon.setOnLongClickListener(mOnIconLongClickListener);
                 // Ensure the all apps icon height matches the workspace icons in portrait mode.
                 icon.getLayoutParams().height = mLauncher.getDeviceProfile().allAppsCellHeightPx;
+                if (FeatureFlags.ENABLE_TWOLINE_ALLAPPS.get()) {
+                    icon.getLayoutParams().height += mExtraHeight;
+                }
                 return new ViewHolder(icon);
             case VIEW_TYPE_EMPTY_SEARCH:
                 return new ViewHolder(mLayoutInflater.inflate(R.layout.all_apps_empty_search,
diff --git a/src/com/android/launcher3/config/FeatureFlags.java b/src/com/android/launcher3/config/FeatureFlags.java
index d362994..e24ea66 100644
--- a/src/com/android/launcher3/config/FeatureFlags.java
+++ b/src/com/android/launcher3/config/FeatureFlags.java
@@ -94,6 +94,9 @@
     public static final BooleanFlag ENABLE_ONE_SEARCH = new DeviceFlag("ENABLE_ONE_SEARCH", false,
             "Use homescreen search box to complete allApps searches");
 
+    public static final BooleanFlag ENABLE_TWOLINE_ALLAPPS = getDebugFlag(
+            "ENABLE_TWOLINE_ALLAPPS", false, "Enables two line label inside all apps.");
+
     public static final BooleanFlag ENABLE_DEVICE_SEARCH_PERFORMANCE_LOGGING = new DeviceFlag(
             "ENABLE_DEVICE_SEARCH_PERFORMANCE_LOGGING", true,
             "Allows on device search in all apps logging");
diff --git a/src_plugins/com/android/systemui/plugins/OneSearch.java b/src_plugins/com/android/systemui/plugins/OneSearch.java
index 29826c3..13a956b 100644
--- a/src_plugins/com/android/systemui/plugins/OneSearch.java
+++ b/src_plugins/com/android/systemui/plugins/OneSearch.java
@@ -28,7 +28,7 @@
 @ProvidesInterface(action = OneSearch.ACTION, version = OneSearch.VERSION)
 public interface OneSearch extends Plugin {
     String ACTION = "com.android.systemui.action.PLUGIN_ONE_SEARCH";
-    int VERSION = 4;
+    int VERSION = 5;
 
     /**
      * Get the content provider warmed up.
@@ -37,10 +37,18 @@
 
     /**
      * Get the suggest search target list for the query.
+     *
      * @param query The query to get the search suggests for.
      */
     ArrayList<Parcelable> getSuggests(Parcelable query);
 
     /** Get image bitmap with the URL. */
     Parcelable getImageBitmap(String imageUrl);
+
+    /**
+     * Notifies search events to plugin
+     *
+     * @param event the SearchTargetEvent event created due to user action
+     */
+    void notifyEvent(Parcelable event);
 }