diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/HotseatPredictionController.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/HotseatPredictionController.java
index 17a3d91..0254340 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/HotseatPredictionController.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/HotseatPredictionController.java
@@ -66,6 +66,9 @@
     //TODO: replace this with AppTargetEvent.ACTION_UNPIN (b/144119543)
     private static final int APPTARGET_ACTION_UNPIN = 4;
 
+    private static final String APP_LOCATION_HOTSEAT = "hotseat";
+    private static final String APP_LOCATION_WORKSPACE = "workspace";
+
     private static final String PREDICTION_CLIENT = "hotseat";
 
     private DropTarget.DragObject mDragObject;
@@ -132,7 +135,7 @@
             }
 
             WorkspaceItemInfo predictedItem = predictedApps.get(predictionIndex++);
-            if (isPredictedIcon(child)) {
+            if (isPredictedIcon(child) && child.isEnabled()) {
                 PredictedAppIcon icon = (PredictedAppIcon) child;
                 icon.applyFromWorkspaceItem(predictedItem);
                 icon.finishBinding();
@@ -204,17 +207,24 @@
 
     private Bundle getAppPredictionContextExtra() {
         Bundle bundle = new Bundle();
-        ViewGroup vg = mHotseat.getShortcutsAndWidgets();
+        bundle.putParcelableArrayList(APP_LOCATION_HOTSEAT,
+                getPinnedAppTargetsInViewGroup((mHotseat.getShortcutsAndWidgets())));
+        bundle.putParcelableArrayList(APP_LOCATION_WORKSPACE, getPinnedAppTargetsInViewGroup(
+                mLauncher.getWorkspace().getScreenWithId(
+                        Workspace.FIRST_SCREEN_ID).getShortcutsAndWidgets()));
+        return bundle;
+    }
+
+    private ArrayList<AppTarget> getPinnedAppTargetsInViewGroup(ViewGroup viewGroup) {
         ArrayList<AppTarget> pinnedApps = new ArrayList<>();
-        for (int i = 0; i < vg.getChildCount(); i++) {
-            View child = vg.getChildAt(i);
+        for (int i = 0; i < viewGroup.getChildCount(); i++) {
+            View child = viewGroup.getChildAt(i);
             if (isPinnedIcon(child)) {
                 WorkspaceItemInfo itemInfo = (WorkspaceItemInfo) child.getTag();
                 pinnedApps.add(getAppTargetFromItemInfo(itemInfo));
             }
         }
-        bundle.putParcelableArrayList("pinned_apps", pinnedApps);
-        return bundle;
+        return pinnedApps;
     }
 
     private void setPredictedApps(List<AppTarget> appTargets) {
@@ -252,7 +262,7 @@
         ObjectAnimator.ofFloat(icon, SCALE_PROPERTY, 1, 0.8f, 1).start();
         icon.pin(workspaceItemInfo);
         AppTarget appTarget = getAppTargetFromItemInfo(workspaceItemInfo);
-        notifyItemAction(appTarget, AppTargetEvent.ACTION_PIN);
+        notifyItemAction(appTarget, APP_LOCATION_HOTSEAT, AppTargetEvent.ACTION_PIN);
     }
 
     private List<WorkspaceItemInfo> mapToWorkspaceItemInfo(
@@ -300,6 +310,7 @@
             int rank = ((WorkspaceItemInfo) icon.getTag()).rank;
             outlines.add(new PredictedAppIcon.PredictedIconOutlineDrawing(
                     mHotseat.getCellXFromOrder(rank), mHotseat.getCellYFromOrder(rank), icon));
+            icon.setEnabled(false);
             icon.animate().scaleY(0).scaleX(0).setListener(new AnimationSuccessListener() {
                 @Override
                 public void onAnimationSuccess(Animator animator) {
@@ -312,9 +323,10 @@
     }
 
 
-    private void notifyItemAction(AppTarget target, int action) {
+    private void notifyItemAction(AppTarget target, String location, int action) {
         if (mAppPredictor != null) {
-            mAppPredictor.notifyAppTargetEvent(new AppTargetEvent.Builder(target, action).build());
+            mAppPredictor.notifyAppTargetEvent(new AppTargetEvent.Builder(target,
+                    action).setLaunchLocation(location).build());
         }
     }
 
@@ -336,10 +348,18 @@
         }
         ItemInfo dragInfo = mDragObject.dragInfo;
         if (dragInfo instanceof WorkspaceItemInfo && dragInfo.getTargetComponent() != null) {
+            AppTarget appTarget = getAppTargetFromItemInfo(dragInfo);
+            if (!isInHotseat(dragInfo) && isInHotseat(mDragObject.originalDragInfo)) {
+                notifyItemAction(appTarget, APP_LOCATION_HOTSEAT, APPTARGET_ACTION_UNPIN);
+            }
+            if (!isInFirstPage(dragInfo) && isInFirstPage(mDragObject.originalDragInfo)) {
+                notifyItemAction(appTarget, APP_LOCATION_WORKSPACE, APPTARGET_ACTION_UNPIN);
+            }
             if (isInHotseat(dragInfo) && !isInHotseat(mDragObject.originalDragInfo)) {
-                notifyItemAction(getAppTargetFromItemInfo(dragInfo), AppTargetEvent.ACTION_PIN);
-            } else if (!isInHotseat(dragInfo) && isInHotseat(mDragObject.originalDragInfo)) {
-                notifyItemAction(getAppTargetFromItemInfo(dragInfo), APPTARGET_ACTION_UNPIN);
+                notifyItemAction(appTarget, APP_LOCATION_HOTSEAT, AppTargetEvent.ACTION_PIN);
+            }
+            if (isInFirstPage(dragInfo) && !isInFirstPage(mDragObject.originalDragInfo)) {
+                notifyItemAction(appTarget, APP_LOCATION_WORKSPACE, AppTargetEvent.ACTION_PIN);
             }
         }
         mDragObject = null;
@@ -412,7 +432,7 @@
             return false;
         }
         ItemInfo info = (ItemInfo) view.getTag();
-        return info.container == LauncherSettings.Favorites.CONTAINER_HOTSEAT && (
+        return info.container != LauncherSettings.Favorites.CONTAINER_HOTSEAT_PREDICTION && (
                 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION
                         || info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT);
     }
@@ -421,6 +441,11 @@
         return itemInfo.container == LauncherSettings.Favorites.CONTAINER_HOTSEAT;
     }
 
+    private static boolean isInFirstPage(ItemInfo itemInfo) {
+        return itemInfo.container == LauncherSettings.Favorites.CONTAINER_DESKTOP
+                && itemInfo.screenId == Workspace.FIRST_SCREEN_ID;
+    }
+
     private static AppTarget getAppTargetFromItemInfo(ItemInfo info) {
         if (info.getTargetComponent() == null) return null;
         ComponentName cn = info.getTargetComponent();
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/PredictedAppIcon.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/PredictedAppIcon.java
index e41c75a..1dcbffb 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/PredictedAppIcon.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/PredictedAppIcon.java
@@ -40,11 +40,12 @@
 import com.android.launcher3.popup.PopupContainerWithArrow;
 import com.android.launcher3.touch.ItemClickHandler;
 import com.android.launcher3.touch.ItemLongClickListener;
+import com.android.launcher3.views.DoubleShadowBubbleTextView;
 
 /**
  * A BubbleTextView with a ring around it's drawable
  */
-public class PredictedAppIcon extends BubbleTextView {
+public class PredictedAppIcon extends DoubleShadowBubbleTextView {
 
     private static final float RING_EFFECT_RATIO = 0.12f;
 
@@ -97,6 +98,7 @@
         applyFromWorkspaceItem(info);
         setOnLongClickListener(ItemLongClickListener.INSTANCE_WORKSPACE);
         mIsPinned = true;
+        ((CellLayout.LayoutParams) getLayoutParams()).canReorder = true;
         invalidate();
     }
 
@@ -111,6 +113,7 @@
             }
             return true;
         });
+        ((CellLayout.LayoutParams) getLayoutParams()).canReorder = false;
         setTextVisibility(false);
         verifyHighRes();
     }
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java
index 6e7214e..b602cea 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/RecentsView.java
@@ -177,6 +177,7 @@
     private final float mFastFlingVelocity;
     private final RecentsModel mModel;
     private final int mTaskTopMargin;
+    private final int mTaskBottomMargin;
     private final ClearAllButton mClearAllButton;
     private final Rect mClearAllButtonDeadZoneRect = new Rect();
     private final Rect mTaskViewDeadZoneRect = new Rect();
@@ -343,6 +344,8 @@
         setLayoutDirection(mIsRtl ? View.LAYOUT_DIRECTION_RTL : View.LAYOUT_DIRECTION_LTR);
         mTaskTopMargin = getResources()
                 .getDimensionPixelSize(R.dimen.task_thumbnail_top_margin);
+        mTaskBottomMargin = getResources().getDimensionPixelSize(
+                R.dimen.task_thumbnail_bottom_margin);
         mSquaredTouchSlop = squaredTouchSlop(context);
 
         mEmptyIcon = context.getDrawable(R.drawable.ic_empty_recents);
@@ -696,6 +699,7 @@
         mTaskHeight = mTempRect.height();
 
         mTempRect.top -= mTaskTopMargin;
+        mTempRect.bottom += mTaskBottomMargin;
         setPadding(mTempRect.left - mInsets.left, mTempRect.top - mInsets.top,
                 dp.widthPx - mInsets.right - mTempRect.right,
                 dp.heightPx - mInsets.bottom - mTempRect.bottom);
@@ -1467,7 +1471,7 @@
 
         // Set the pivot points to match the task preview center
         setPivotY(((mInsets.top + getPaddingTop() + mTaskTopMargin)
-                + (getHeight() - mInsets.bottom - getPaddingBottom())) / 2);
+                + (getHeight() - mInsets.bottom - getPaddingBottom() - mTaskBottomMargin)) / 2);
         setPivotX(((mInsets.left + getPaddingLeft())
                 + (getWidth() - mInsets.right - getPaddingRight())) / 2);
     }
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/TaskView.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/TaskView.java
index a1775f4..0bfde64 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/views/TaskView.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/views/TaskView.java
@@ -540,8 +540,11 @@
             }
 
             addView(view, indexToAdd);
-            ((LayoutParams) view.getLayoutParams()).gravity =
+            LayoutParams layoutParams = (LayoutParams) view.getLayoutParams();
+            layoutParams.gravity =
                     Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL;
+            layoutParams.bottomMargin =
+                    ((MarginLayoutParams) mSnapshotView.getLayoutParams()).bottomMargin;
             view.setAlpha(mFooterAlpha);
             mFooters[index] = new FooterWrapper(view);
             if (shouldAnimateEntry) {
@@ -618,10 +621,12 @@
     private static final class TaskOutlineProvider extends ViewOutlineProvider {
 
         private final int mMarginTop;
+        private final int mMarginBottom;
         private FullscreenDrawParams mFullscreenParams;
 
         TaskOutlineProvider(Resources res, FullscreenDrawParams fullscreenParams) {
             mMarginTop = res.getDimensionPixelSize(R.dimen.task_thumbnail_top_margin);
+            mMarginBottom = res.getDimensionPixelSize(R.dimen.task_thumbnail_bottom_margin);
             mFullscreenParams = fullscreenParams;
         }
 
@@ -636,7 +641,7 @@
             outline.setRoundRect(0,
                     (int) (mMarginTop * scale),
                     (int) ((insets.left + view.getWidth() + insets.right) * scale),
-                    (int) ((insets.top + view.getHeight() + insets.bottom) * scale),
+                    (int) ((insets.top + view.getHeight() + insets.bottom - mMarginBottom) * scale),
                     mFullscreenParams.mCurrentDrawnCornerRadius);
         }
     }
diff --git a/quickstep/res/layout/task.xml b/quickstep/res/layout/task.xml
index 60cfa0c..7a36416 100644
--- a/quickstep/res/layout/task.xml
+++ b/quickstep/res/layout/task.xml
@@ -25,7 +25,8 @@
         android:id="@+id/snapshot"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        android:layout_marginTop="@dimen/task_thumbnail_top_margin"/>
+        android:layout_marginTop="@dimen/task_thumbnail_top_margin"
+        android:layout_marginBottom="@dimen/task_thumbnail_bottom_margin"/>
 
     <com.android.quickstep.views.IconView
         android:id="@+id/icon"
diff --git a/quickstep/res/values/dimens.xml b/quickstep/res/values/dimens.xml
index 78424ca..82833ea 100644
--- a/quickstep/res/values/dimens.xml
+++ b/quickstep/res/values/dimens.xml
@@ -18,6 +18,8 @@
 
     <dimen name="task_thumbnail_top_margin">24dp</dimen>
     <dimen name="task_thumbnail_half_top_margin">12dp</dimen>
+    <!-- Can be overridden in overlays. -->
+    <dimen name="task_thumbnail_bottom_margin">0dp</dimen>
     <dimen name="task_thumbnail_icon_size">48dp</dimen>
     <!-- For screens without rounded corners -->
     <dimen name="task_corner_radius_small">2dp</dimen>
diff --git a/quickstep/src/com/android/launcher3/uioverrides/ApiWrapper.java b/quickstep/src/com/android/launcher3/uioverrides/ApiWrapper.java
index 965b5f0..1e03b05 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/ApiWrapper.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/ApiWrapper.java
@@ -16,46 +16,13 @@
 
 package com.android.launcher3.uioverrides;
 
-import android.app.Activity;
 import android.app.Person;
 import android.content.pm.ShortcutInfo;
-import android.util.Base64;
 
 import com.android.launcher3.Utilities;
-import com.android.systemui.shared.system.ActivityCompat;
-
-import java.io.ByteArrayOutputStream;
-import java.io.PrintWriter;
-import java.util.zip.Deflater;
 
 public class ApiWrapper {
 
-    public static boolean dumpActivity(Activity activity, PrintWriter writer) {
-        if (!Utilities.IS_DEBUG_DEVICE) {
-            return false;
-        }
-        ByteArrayOutputStream out = new ByteArrayOutputStream();
-        if (!(new ActivityCompat(activity).encodeViewHierarchy(out))) {
-            return false;
-        }
-
-        Deflater deflater = new Deflater();
-        deflater.setInput(out.toByteArray());
-        deflater.finish();
-
-        out.reset();
-        byte[] buffer = new byte[1024];
-        while (!deflater.finished()) {
-            int count = deflater.deflate(buffer); // returns the generated code... index
-            out.write(buffer, 0, count);
-        }
-
-        writer.println("--encoded-view-dump-v0--");
-        writer.println(Base64.encodeToString(
-                out.toByteArray(), Base64.NO_WRAP | Base64.NO_PADDING));
-        return true;
-    }
-
     public static Person[] getPersons(ShortcutInfo si) {
         Person[] persons = si.getPersons();
         return persons == null ? Utilities.EMPTY_PERSON_ARRAY : persons;
diff --git a/quickstep/src/com/android/quickstep/util/LayoutUtils.java b/quickstep/src/com/android/quickstep/util/LayoutUtils.java
index 2e118b4..c47bb4a 100644
--- a/quickstep/src/com/android/quickstep/util/LayoutUtils.java
+++ b/quickstep/src/com/android/quickstep/util/LayoutUtils.java
@@ -105,6 +105,7 @@
         }
 
         float topIconMargin = res.getDimension(R.dimen.task_thumbnail_top_margin);
+        float bottomMargin = res.getDimension(R.dimen.task_thumbnail_bottom_margin);
         float paddingVert = res.getDimension(R.dimen.task_card_vert_space);
 
         // Note this should be same as dp.availableWidthPx and dp.availableHeightPx unless
@@ -113,7 +114,7 @@
         int launcherVisibleHeight = dp.heightPx - insets.top - insets.bottom;
 
         float availableHeight = launcherVisibleHeight
-                - topIconMargin - extraVerticalSpace - paddingVert;
+                - topIconMargin - extraVerticalSpace - paddingVert - bottomMargin;
         float availableWidth = launcherVisibleWidth - paddingHorz;
 
         float scale = Math.min(availableWidth / taskWidth, availableHeight / taskHeight);
diff --git a/src/com/android/launcher3/BaseActivity.java b/src/com/android/launcher3/BaseActivity.java
index 382bfdf..f319ae1 100644
--- a/src/com/android/launcher3/BaseActivity.java
+++ b/src/com/android/launcher3/BaseActivity.java
@@ -35,13 +35,11 @@
 import com.android.launcher3.logging.StatsLogUtils.LogStateProvider;
 import com.android.launcher3.logging.UserEventDispatcher;
 import com.android.launcher3.logging.UserEventDispatcher.UserEventDelegate;
-import com.android.launcher3.uioverrides.ApiWrapper;
 import com.android.launcher3.userevent.nano.LauncherLogProto;
 import com.android.launcher3.util.SystemUiController;
 import com.android.launcher3.util.ViewCache;
 import com.android.launcher3.views.ActivityContext;
 
-import java.io.FileDescriptor;
 import java.io.PrintWriter;
 import java.lang.annotation.Retention;
 import java.util.ArrayList;
@@ -305,13 +303,6 @@
         void onMultiWindowModeChanged(boolean isInMultiWindowMode);
     }
 
-    @Override
-    public void dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) {
-        if (!ApiWrapper.dumpActivity(this, writer)) {
-            super.dump(prefix, fd, writer, args);
-        }
-    }
-
     protected void dumpMisc(String prefix, PrintWriter writer) {
         writer.println(prefix + "deviceProfile isTransposed="
                 + getDeviceProfile().isVerticalBarLayout());
diff --git a/src/com/android/launcher3/DeleteDropTarget.java b/src/com/android/launcher3/DeleteDropTarget.java
index 3347b2a..bd48aec 100644
--- a/src/com/android/launcher3/DeleteDropTarget.java
+++ b/src/com/android/launcher3/DeleteDropTarget.java
@@ -113,6 +113,7 @@
     public void onDrop(DragObject d, DragOptions options) {
         if (canRemove(d.dragInfo)) {
             mLauncher.getModelWriter().prepareToUndoDelete();
+            d.dragInfo.container = NO_ID;
         }
         super.onDrop(d, options);
     }
diff --git a/src/com/android/launcher3/Workspace.java b/src/com/android/launcher3/Workspace.java
index d445bc9..816d710 100644
--- a/src/com/android/launcher3/Workspace.java
+++ b/src/com/android/launcher3/Workspace.java
@@ -1641,7 +1641,9 @@
             return false;
         }
 
-        boolean aboveShortcut = (dropOverView.getTag() instanceof WorkspaceItemInfo);
+        boolean aboveShortcut = (dropOverView.getTag() instanceof WorkspaceItemInfo
+                && ((WorkspaceItemInfo) dropOverView.getTag()).container
+                != LauncherSettings.Favorites.CONTAINER_HOTSEAT_PREDICTION);
         boolean willBecomeShortcut =
                 (info.itemType == ITEM_TYPE_APPLICATION ||
                         info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT ||
diff --git a/src/com/android/launcher3/config/FeatureFlags.java b/src/com/android/launcher3/config/FeatureFlags.java
index f4b705e..ae30380 100644
--- a/src/com/android/launcher3/config/FeatureFlags.java
+++ b/src/com/android/launcher3/config/FeatureFlags.java
@@ -69,16 +69,8 @@
      *
      * To add a new flag that can be toggled through the flags UI:
      *
-     * 1. Declare a new ToggleableFlag below. Give it a unique key (e.g. "QSB_ON_FIRST_SCREEN"),
+     * Declare a new ToggleableFlag below. Give it a unique key (e.g. "QSB_ON_FIRST_SCREEN"),
      *    and set a default value for the flag. This will be the default value on Debug builds.
-     *
-     * 2. Add your flag to mTogglableFlags.
-     *
-     * 3. Create a getter method (an 'is' method) for the flag by copying an existing one.
-     *
-     * 4. Create a getter method with the same name in the release flags copy of FeatureFlags.java.
-     *    This should returns a constant (true/false). This will be the value of the flag used on
-     *    release builds.
      */
     // When enabled the promise icon is visible in all apps while installation an app.
     public static final TogglableFlag PROMISE_APPS_IN_ALL_APPS = new TogglableFlag(
diff --git a/src_ui_overrides/com/android/launcher3/uioverrides/ApiWrapper.java b/src_ui_overrides/com/android/launcher3/uioverrides/ApiWrapper.java
index 5407ea3..6fd147a 100644
--- a/src_ui_overrides/com/android/launcher3/uioverrides/ApiWrapper.java
+++ b/src_ui_overrides/com/android/launcher3/uioverrides/ApiWrapper.java
@@ -16,20 +16,13 @@
 
 package com.android.launcher3.uioverrides;
 
-import android.app.Activity;
 import android.app.Person;
 import android.content.pm.ShortcutInfo;
 
 import com.android.launcher3.Utilities;
 
-import java.io.PrintWriter;
-
 public class ApiWrapper {
 
-    public static boolean dumpActivity(Activity activity, PrintWriter writer) {
-        return false;
-    }
-
     public static Person[] getPersons(ShortcutInfo si) {
         return Utilities.EMPTY_PERSON_ARRAY;
     }