diff --git a/OWNERS b/OWNERS
index 538ca33..7340e84 100644
--- a/OWNERS
+++ b/OWNERS
@@ -10,6 +10,7 @@
 sunnygoyal@google.com
 twickham@google.com
 winsonc@google.com
+zakcohen@google.com
 
 per-file FeatureFlags.java = sunnygoyal@google.com, adamcohen@google.com
 per-file BaseFlags.java = sunnygoyal@google.com, adamcohen@google.com
diff --git a/go/AndroidManifest.xml b/go/AndroidManifest.xml
index fae1eff..f84a82e 100644
--- a/go/AndroidManifest.xml
+++ b/go/AndroidManifest.xml
@@ -22,7 +22,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     package="com.android.launcher3" >
 
-    <uses-sdk android:targetSdkVersion="28" android:minSdkVersion="25"/>
+    <uses-sdk android:targetSdkVersion="29" android:minSdkVersion="25"/>
 
     <application
         android:backupAgent="com.android.launcher3.LauncherBackupAgent"
diff --git a/iconloaderlib/src/com/android/launcher3/icons/cache/CachingLogic.java b/iconloaderlib/src/com/android/launcher3/icons/cache/CachingLogic.java
index ea1ca53..a89ede7 100644
--- a/iconloaderlib/src/com/android/launcher3/icons/cache/CachingLogic.java
+++ b/iconloaderlib/src/com/android/launcher3/icons/cache/CachingLogic.java
@@ -17,6 +17,7 @@
 
 import android.content.ComponentName;
 import android.content.Context;
+import android.content.pm.PackageInfo;
 import android.os.LocaleList;
 import android.os.UserHandle;
 
@@ -45,6 +46,13 @@
     }
 
     /**
+     * Returns the timestamp the entry was last updated in cache.
+     */
+    default long getLastUpdatedTime(T object, PackageInfo info) {
+        return info.lastUpdateTime;
+    }
+
+    /**
      * Returns true the object should be added to mem cache; otherwise returns false.
      */
     default boolean addToMemCache() {
diff --git a/iconloaderlib/src/com/android/launcher3/icons/cache/IconCacheUpdateHandler.java b/iconloaderlib/src/com/android/launcher3/icons/cache/IconCacheUpdateHandler.java
index 8224966..bcdbce5 100644
--- a/iconloaderlib/src/com/android/launcher3/icons/cache/IconCacheUpdateHandler.java
+++ b/iconloaderlib/src/com/android/launcher3/icons/cache/IconCacheUpdateHandler.java
@@ -171,7 +171,8 @@
                 long updateTime = c.getLong(indexLastUpdate);
                 int version = c.getInt(indexVersion);
                 T app = componentMap.remove(component);
-                if (version == info.versionCode && updateTime == info.lastUpdateTime
+                if (version == info.versionCode
+                        && updateTime == cachingLogic.getLastUpdatedTime(app, info)
                         && TextUtils.equals(c.getString(systemStateIndex),
                                 mIconCache.getIconSystemState(info.packageName))) {
 
@@ -231,7 +232,6 @@
         }
     }
 
-
     /**
      * A runnable that updates invalid icons and adds missing icons in the DB for the provided
      * LauncherActivityInfo list. Items are updated/added one at a time, so that the
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 ba44213..32846dc 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/HotseatPredictionController.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/HotseatPredictionController.java
@@ -15,7 +15,15 @@
  */
 package com.android.launcher3;
 
+import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
+
 import android.animation.Animator;
+import android.animation.ObjectAnimator;
+import android.app.prediction.AppPredictionContext;
+import android.app.prediction.AppPredictionManager;
+import android.app.prediction.AppPredictor;
+import android.app.prediction.AppTarget;
+import android.content.ComponentName;
 import android.util.Log;
 import android.view.View;
 import android.view.ViewGroup;
@@ -25,14 +33,16 @@
 import com.android.launcher3.allapps.AllAppsStore;
 import com.android.launcher3.anim.AnimationSuccessListener;
 import com.android.launcher3.appprediction.ComponentKeyMapper;
-import com.android.launcher3.appprediction.PredictionUiStateManager;
-import com.android.launcher3.config.FeatureFlags;
+import com.android.launcher3.appprediction.DynamicItemCache;
 import com.android.launcher3.dragndrop.DragController;
 import com.android.launcher3.dragndrop.DragOptions;
+import com.android.launcher3.icons.IconCache;
 import com.android.launcher3.popup.PopupContainerWithArrow;
 import com.android.launcher3.popup.SystemShortcut;
+import com.android.launcher3.shortcuts.ShortcutKey;
 import com.android.launcher3.touch.ItemLongClickListener;
 import com.android.launcher3.uioverrides.QuickstepLauncher;
+import com.android.launcher3.util.ComponentKey;
 
 import java.util.ArrayList;
 import java.util.Collections;
@@ -43,73 +53,86 @@
  * pinning of predicted apps and manages replacement of predicted apps with user drag.
  */
 public class HotseatPredictionController implements DragController.DragListener,
-        View.OnAttachStateChangeListener, SystemShortcut.Factory<QuickstepLauncher> {
+        View.OnAttachStateChangeListener, SystemShortcut.Factory<QuickstepLauncher>,
+        InvariantDeviceProfile.OnIDPChangeListener, AllAppsStore.OnUpdateListener,
+        IconCache.ItemInfoUpdateReceiver {
 
     private static final String TAG = "PredictiveHotseat";
     private static final boolean DEBUG = false;
 
+    private static final String PREDICTION_CLIENT = "hotseat";
 
     private boolean mDragStarted = false;
-    private PredictionUiStateManager mPredictionUiStateManager;
-    private ArrayList<WorkspaceItemInfo> mPredictedApps = new ArrayList<>();
+    private int mHotSeatItemsCount;
+
     private Launcher mLauncher;
+    private Hotseat mHotseat;
+
+    private List<ComponentKeyMapper> mComponentKeyMappers = new ArrayList<>();
+
+    private DynamicItemCache mDynamicItemCache;
+
+    private AppPredictor mAppPredictor;
+    private AllAppsStore mAllAppsStore;
 
     public HotseatPredictionController(Launcher launcher) {
         mLauncher = launcher;
-        mPredictionUiStateManager = PredictionUiStateManager.INSTANCE.get(mLauncher);
-        if (FeatureFlags.ENABLE_HYBRID_HOTSEAT.get()) {
-            mLauncher.getHotseat().addOnAttachStateChangeListener(this);
-        }
+        mHotseat = launcher.getHotseat();
+        mAllAppsStore = mLauncher.getAppsView().getAppsStore();
+        mAllAppsStore.addUpdateListener(this);
+        mDynamicItemCache = new DynamicItemCache(mLauncher, () -> fillGapsWithPrediction(false));
+        mHotSeatItemsCount = mLauncher.getDeviceProfile().inv.numHotseatIcons;
+        launcher.getDeviceProfile().inv.addOnChangeListener(this);
+        mHotseat.addOnAttachStateChangeListener(this);
+        createPredictor();
     }
 
     @Override
     public void onViewAttachedToWindow(View view) {
-        mPredictionUiStateManager.setHotseatPredictionController(this);
         mLauncher.getDragController().addDragListener(this);
     }
 
     @Override
     public void onViewDetachedFromWindow(View view) {
-        mPredictionUiStateManager.setHotseatPredictionController(null);
         mLauncher.getDragController().removeDragListener(this);
     }
 
     /**
-     * sets the list of predicted items. gets called from PredictionUiStateManager
-     */
-    public void setPredictedApps(List<ComponentKeyMapper> apps) {
-        mPredictedApps.clear();
-        mPredictedApps.addAll(mapToWorkspaceItemInfo(apps));
-        fillGapsWithPrediction(false);
-    }
-
-    /**
      * Fills gaps in the hotseat with predictions
      */
     public void fillGapsWithPrediction(boolean animate) {
-        if (!FeatureFlags.ENABLE_HYBRID_HOTSEAT.get() || mDragStarted) {
+        if (mDragStarted) {
             return;
         }
-        removePredictedApps(false);
+        List<WorkspaceItemInfo> predictedApps = mapToWorkspaceItemInfo(mComponentKeyMappers);
         int predictionIndex = 0;
-        ArrayList<ItemInfo> itemInfos = new ArrayList<>();
-        int cellCount = mLauncher.getWallpaperDeviceProfile().inv.numHotseatIcons;
-        for (int rank = 0; rank < cellCount; rank++) {
-            if (mPredictedApps.size() == predictionIndex) {
-                break;
-            }
-            View child = mLauncher.getHotseat().getChildAt(
-                    mLauncher.getHotseat().getCellXFromOrder(rank),
-                    mLauncher.getHotseat().getCellYFromOrder(rank));
-            if (child != null) {
-                // we already have an item there. skip cell
+        ArrayList<ItemInfo> newItemsToAdd = new ArrayList<>();
+        for (int rank = 0; rank < mHotSeatItemsCount; rank++) {
+            View child = mHotseat.getChildAt(
+                    mHotseat.getCellXFromOrder(rank),
+                    mHotseat.getCellYFromOrder(rank));
+
+            if (child != null && !isPredictedIcon(child)) {
                 continue;
             }
-            WorkspaceItemInfo predictedItem = mPredictedApps.get(predictionIndex++);
+            if (predictedApps.size() <= predictionIndex) {
+                // Remove predicted apps from the past
+                if (isPredictedIcon(child)) {
+                    mHotseat.removeView(child);
+                }
+                continue;
+            }
+
+            WorkspaceItemInfo predictedItem = predictedApps.get(predictionIndex++);
+            if (isPredictedIcon(child)) {
+                BubbleTextView icon = (BubbleTextView) child;
+                icon.applyFromWorkspaceItem(predictedItem);
+            } else {
+                newItemsToAdd.add(predictedItem);
+            }
             preparePredictionInfo(predictedItem, rank);
-            itemInfos.add(predictedItem);
         }
-        mLauncher.bindItems(itemInfos, animate);
+        mLauncher.bindItems(newItemsToAdd, animate);
         for (BubbleTextView icon : getPredictedIcons()) {
             icon.verifyHighRes();
             icon.setOnLongClickListener((v) -> {
@@ -119,29 +142,73 @@
         }
     }
 
+    /**
+     * Unregisters callbacks and frees resources
+     */
+    public void destroy() {
+        mAllAppsStore.removeUpdateListener(this);
+        mLauncher.getDeviceProfile().inv.removeOnChangeListener(this);
+        mHotseat.removeOnAttachStateChangeListener(this);
+        if (mAppPredictor != null) {
+            mAppPredictor.destroy();
+        }
+    }
+
+    private void createPredictor() {
+        AppPredictionManager apm = mLauncher.getSystemService(AppPredictionManager.class);
+        if (apm == null) {
+            return;
+        }
+        if (mAppPredictor != null) {
+            mAppPredictor.destroy();
+        }
+        mAppPredictor = apm.createAppPredictionSession(
+                new AppPredictionContext.Builder(mLauncher)
+                        .setUiSurface(PREDICTION_CLIENT)
+                        .setPredictedTargetCount(mHotSeatItemsCount)
+                        .build());
+        mAppPredictor.registerPredictionUpdates(mLauncher.getMainExecutor(),
+                this::setPredictedApps);
+        mAppPredictor.requestPredictionUpdate();
+    }
+
+    private void setPredictedApps(List<AppTarget> appTargets) {
+        mComponentKeyMappers.clear();
+        for (AppTarget appTarget : appTargets) {
+            ComponentKey key;
+            if (appTarget.getShortcutInfo() != null) {
+                key = ShortcutKey.fromInfo(appTarget.getShortcutInfo());
+            } else {
+                key = new ComponentKey(new ComponentName(appTarget.getPackageName(),
+                        appTarget.getClassName()), appTarget.getUser());
+            }
+            mComponentKeyMappers.add(new ComponentKeyMapper(key, mDynamicItemCache));
+        }
+        updateDependencies();
+        fillGapsWithPrediction(false);
+    }
+
+    private void updateDependencies() {
+        mDynamicItemCache.updateDependencies(mComponentKeyMappers, mAllAppsStore, this,
+                mHotSeatItemsCount);
+    }
+
     private void pinPrediction(ItemInfo info) {
-        BubbleTextView icon = (BubbleTextView) mLauncher.getHotseat().getChildAt(
-                mLauncher.getHotseat().getCellXFromOrder(info.rank),
-                mLauncher.getHotseat().getCellYFromOrder(info.rank));
+        BubbleTextView icon = (BubbleTextView) mHotseat.getChildAt(
+                mHotseat.getCellXFromOrder(info.rank),
+                mHotseat.getCellYFromOrder(info.rank));
         if (icon == null) {
             return;
         }
         WorkspaceItemInfo workspaceItemInfo = new WorkspaceItemInfo((WorkspaceItemInfo) info);
-        workspaceItemInfo.container = LauncherSettings.Favorites.CONTAINER_HOTSEAT;
         mLauncher.getModelWriter().addItemToDatabase(workspaceItemInfo,
-                workspaceItemInfo.container, workspaceItemInfo.screenId,
+                LauncherSettings.Favorites.CONTAINER_HOTSEAT, workspaceItemInfo.screenId,
                 workspaceItemInfo.cellX, workspaceItemInfo.cellY);
-        icon.animate().scaleY(0.8f).scaleX(0.8f).setListener(new AnimationSuccessListener() {
-            @Override
-            public void onAnimationSuccess(Animator animator) {
-                icon.animate().scaleY(1).scaleX(1);
-            }
-        });
+        ObjectAnimator.ofFloat(icon, SCALE_PROPERTY, 1, 0.8f, 1).start();
         icon.applyFromWorkspaceItem(workspaceItemInfo);
         icon.setOnLongClickListener(ItemLongClickListener.INSTANCE_WORKSPACE);
     }
 
-
     private List<WorkspaceItemInfo> mapToWorkspaceItemInfo(
             List<ComponentKeyMapper> components) {
         AllAppsStore allAppsStore = mLauncher.getAppsView().getAppsStore();
@@ -163,7 +230,7 @@
                 }
             }
             // Stop at the number of hotseat items
-            if (predictedApps.size() == mLauncher.getDeviceProfile().inv.numHotseatIcons) {
+            if (predictedApps.size() == mHotSeatItemsCount) {
                 break;
             }
         }
@@ -172,12 +239,10 @@
 
     private List<BubbleTextView> getPredictedIcons() {
         List<BubbleTextView> icons = new ArrayList<>();
-        ViewGroup vg = mLauncher.getHotseat().getShortcutsAndWidgets();
+        ViewGroup vg = mHotseat.getShortcutsAndWidgets();
         for (int i = 0; i < vg.getChildCount(); i++) {
             View child = vg.getChildAt(i);
-            if (child instanceof BubbleTextView && child.getTag() instanceof WorkspaceItemInfo
-                    && ((WorkspaceItemInfo) child.getTag()).container
-                    == LauncherSettings.Favorites.CONTAINER_HOTSEAT_PREDICTION) {
+            if (isPredictedIcon(child)) {
                 icons.add((BubbleTextView) child);
             }
         }
@@ -191,13 +256,13 @@
                     @Override
                     public void onAnimationSuccess(Animator animator) {
                         if (icon.getParent() != null) {
-                            ((ViewGroup) icon.getParent()).removeView(icon);
+                            mHotseat.removeView(icon);
                         }
                     }
                 });
             } else {
                 if (icon.getParent() != null) {
-                    ((ViewGroup) icon.getParent()).removeView(icon);
+                    mHotseat.removeView(icon);
                 }
             }
         }
@@ -222,7 +287,6 @@
     @Override
     public SystemShortcut<QuickstepLauncher> getShortcut(QuickstepLauncher activity,
             ItemInfo itemInfo) {
-        if (!FeatureFlags.ENABLE_HYBRID_HOTSEAT.get()) return null;
         if (itemInfo.container != LauncherSettings.Favorites.CONTAINER_HOTSEAT_PREDICTION) {
             return null;
         }
@@ -233,10 +297,27 @@
         itemInfo.container = LauncherSettings.Favorites.CONTAINER_HOTSEAT_PREDICTION;
         itemInfo.rank = rank;
         itemInfo.cellX = rank;
-        itemInfo.cellY =  LauncherAppState.getIDP(mLauncher).numHotseatIcons - rank - 1;
+        itemInfo.cellY = mHotSeatItemsCount - rank - 1;
         itemInfo.screenId = rank;
     }
 
+    @Override
+    public void onIdpChanged(int changeFlags, InvariantDeviceProfile profile) {
+        this.mHotSeatItemsCount = profile.numHotseatIcons;
+        createPredictor();
+    }
+
+    @Override
+    public void onAppsUpdated() {
+        updateDependencies();
+        fillGapsWithPrediction(false);
+    }
+
+    @Override
+    public void reapplyItemInfo(ItemInfoWithIcon info) {
+
+    }
+
     private class PinPrediction extends SystemShortcut<QuickstepLauncher> {
 
         private PinPrediction(QuickstepLauncher target, ItemInfo itemInfo) {
@@ -250,4 +331,10 @@
             pinPrediction(mItemInfo);
         }
     }
+
+    private static boolean isPredictedIcon(View view) {
+        return view instanceof BubbleTextView && view.getTag() instanceof WorkspaceItemInfo
+                && ((WorkspaceItemInfo) view.getTag()).container
+                == LauncherSettings.Favorites.CONTAINER_HOTSEAT_PREDICTION;
+    }
 }
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/appprediction/DynamicItemCache.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/appprediction/DynamicItemCache.java
index 06580b9..38bb180 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/appprediction/DynamicItemCache.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/appprediction/DynamicItemCache.java
@@ -18,6 +18,7 @@
 import static android.content.pm.PackageManager.MATCH_INSTANT;
 
 import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
+import static com.android.quickstep.InstantAppResolverImpl.COMPONENT_CLASS_MARKER;
 
 import android.content.Context;
 import android.content.Intent;
@@ -37,8 +38,10 @@
 import androidx.annotation.UiThread;
 import androidx.annotation.WorkerThread;
 
+import com.android.launcher3.AppInfo;
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.WorkspaceItemInfo;
+import com.android.launcher3.allapps.AllAppsStore;
 import com.android.launcher3.icons.IconCache;
 import com.android.launcher3.icons.LauncherIcons;
 import com.android.launcher3.shortcuts.DeepShortcutManager;
@@ -72,6 +75,7 @@
     private final Handler mUiHandler;
     private final InstantAppResolver mInstantAppResolver;
     private final Runnable mOnUpdateCallback;
+    private final IconCache mIconCache;
 
     private final Map<ShortcutKey, WorkspaceItemInfo> mShortcuts;
     private final Map<String, InstantAppItemInfo> mInstantApps;
@@ -82,6 +86,7 @@
         mUiHandler = new Handler(Looper.getMainLooper(), this::handleUiMessage);
         mInstantAppResolver = InstantAppResolver.newInstance(context);
         mOnUpdateCallback = onUpdateCallback;
+        mIconCache = LauncherAppState.getInstance(mContext).getIconCache();
 
         mShortcuts = new HashMap<>();
         mInstantApps = new HashMap<>();
@@ -240,4 +245,35 @@
     public WorkspaceItemInfo getShortcutInfo(ShortcutKey key) {
         return mShortcuts.get(key);
     }
+
+    /**
+     * requests and caches icons for app targets
+     */
+    public void updateDependencies(List<ComponentKeyMapper> componentKeyMappers,
+            AllAppsStore appsStore, IconCache.ItemInfoUpdateReceiver callback, int itemCount) {
+        List<String> instantAppsToLoad = new ArrayList<>();
+        List<ShortcutKey> shortcutsToLoad = new ArrayList<>();
+        int total = componentKeyMappers.size();
+        for (int i = 0, count = 0; i < total && count < itemCount; i++) {
+            ComponentKeyMapper mapper = componentKeyMappers.get(i);
+            // Update instant apps
+            if (COMPONENT_CLASS_MARKER.equals(mapper.getComponentClass())) {
+                instantAppsToLoad.add(mapper.getPackage());
+                count++;
+            } else if (mapper.getComponentKey() instanceof ShortcutKey) {
+                shortcutsToLoad.add((ShortcutKey) mapper.getComponentKey());
+                count++;
+            } else {
+                // Reload high res icon
+                AppInfo info = (AppInfo) mapper.getApp(appsStore);
+                if (info != null) {
+                    if (info.usingLowResIcon()) {
+                        mIconCache.updateIconInBackground(callback, info);
+                    }
+                    count++;
+                }
+            }
+        }
+        cacheItems(shortcutsToLoad, instantAppsToLoad);
+    }
 }
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/appprediction/PredictionUiStateManager.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/appprediction/PredictionUiStateManager.java
index 8fade5c..8338c2e 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/appprediction/PredictionUiStateManager.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/appprediction/PredictionUiStateManager.java
@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (C) 2019 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -18,15 +18,12 @@
 
 import static com.android.launcher3.LauncherState.BACKGROUND_APP;
 import static com.android.launcher3.LauncherState.OVERVIEW;
-import static com.android.quickstep.InstantAppResolverImpl.COMPONENT_CLASS_MARKER;
 
 import android.app.prediction.AppPredictor;
 import android.app.prediction.AppTarget;
 import android.content.ComponentName;
 import android.content.Context;
 
-import com.android.launcher3.AppInfo;
-import com.android.launcher3.HotseatPredictionController;
 import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.InvariantDeviceProfile.OnIDPChangeListener;
 import com.android.launcher3.ItemInfoWithIcon;
@@ -37,7 +34,6 @@
 import com.android.launcher3.Utilities;
 import com.android.launcher3.allapps.AllAppsContainerView;
 import com.android.launcher3.allapps.AllAppsStore.OnUpdateListener;
-import com.android.launcher3.icons.IconCache;
 import com.android.launcher3.icons.IconCache.ItemInfoUpdateReceiver;
 import com.android.launcher3.shortcuts.ShortcutKey;
 import com.android.launcher3.util.ComponentKey;
@@ -90,8 +86,6 @@
 
     private AllAppsContainerView mAppsView;
 
-    private HotseatPredictionController mHotseatPredictionController;
-
     private PredictionState mPendingState;
     private PredictionState mCurrentState;
 
@@ -153,10 +147,6 @@
         updateDependencies(mCurrentState);
     }
 
-    public void setHotseatPredictionController(HotseatPredictionController controller) {
-        mHotseatPredictionController = controller;
-    }
-
     @Override
     public void reapplyItemInfo(ItemInfoWithIcon info) { }
 
@@ -193,9 +183,6 @@
             mAppsView.getFloatingHeaderView().findFixedRowByType(PredictionRowView.class)
                     .setPredictedApps(mCurrentState.apps);
         }
-        if (mHotseatPredictionController != null) {
-            mHotseatPredictionController.setPredictedApps(mCurrentState.apps);
-        }
     }
 
     private void updatePredictionStateAfterCallback() {
@@ -260,33 +247,8 @@
         if (!state.isEnabled || mAppsView == null) {
             return;
         }
-
-        IconCache iconCache = LauncherAppState.getInstance(mContext).getIconCache();
-        List<String> instantAppsToLoad = new ArrayList<>();
-        List<ShortcutKey> shortcutsToLoad = new ArrayList<>();
-        int total = state.apps.size();
-        for (int i = 0, count = 0; i < total && count < mMaxIconsPerRow; i++) {
-            ComponentKeyMapper mapper = state.apps.get(i);
-            // Update instant apps
-            if (COMPONENT_CLASS_MARKER.equals(mapper.getComponentClass())) {
-                instantAppsToLoad.add(mapper.getPackage());
-                count++;
-            } else if (mapper.getComponentKey() instanceof ShortcutKey) {
-                shortcutsToLoad.add((ShortcutKey) mapper.getComponentKey());
-                count++;
-            } else {
-                // Reload high res icon
-                AppInfo info = (AppInfo) mapper.getApp(mAppsView.getAppsStore());
-                if (info != null) {
-                    if (info.usingLowResIcon()) {
-                        // TODO: Update icon cache to support null callbacks.
-                        iconCache.updateIconInBackground(this, info);
-                    }
-                    count++;
-                }
-            }
-        }
-        mDynamicItemCache.cacheItems(shortcutsToLoad, instantAppsToLoad);
+        mDynamicItemCache.updateDependencies(state.apps, mAppsView.getAppsStore(), this,
+                mMaxIconsPerRow);
     }
 
     @Override
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/QuickstepLauncher.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
index a6fcf44..eefb7dc 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (C) 2019 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -31,6 +31,7 @@
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.anim.AnimatorPlaybackController;
+import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.graphics.RotationMode;
 import com.android.launcher3.popup.SystemShortcut;
 import com.android.launcher3.uioverrides.touchcontrollers.FlingAndHoldTouchController;
@@ -137,7 +138,9 @@
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        mHotseatPredictionController = new HotseatPredictionController(this);
+        if (FeatureFlags.ENABLE_HYBRID_HOTSEAT.get()) {
+            mHotseatPredictionController = new HotseatPredictionController(this);
+        }
     }
 
     @Override
@@ -165,8 +168,12 @@
 
     @Override
     public Stream<SystemShortcut.Factory> getSupportedShortcuts() {
-        return Stream.concat(super.getSupportedShortcuts(),
-                Stream.of(mHotseatPredictionController));
+        if (mHotseatPredictionController != null) {
+            return Stream.concat(super.getSupportedShortcuts(),
+                    Stream.of(mHotseatPredictionController));
+        } else {
+            return super.getSupportedShortcuts();
+        }
     }
 
     /**
@@ -187,7 +194,17 @@
     @Override
     public void finishBindingItems(int pageBoundFirst) {
         super.finishBindingItems(pageBoundFirst);
-        mHotseatPredictionController.fillGapsWithPrediction(false);
+        if (mHotseatPredictionController != null) {
+            mHotseatPredictionController.fillGapsWithPrediction(false);
+        }
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        if (mHotseatPredictionController != null) {
+            mHotseatPredictionController.destroy();
+        }
     }
 
     @Override
diff --git a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/NavBarToHomeTouchController.java b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/NavBarToHomeTouchController.java
index 1897fb2..ad4a343 100644
--- a/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/NavBarToHomeTouchController.java
+++ b/quickstep/recents_ui_overrides/src/com/android/launcher3/uioverrides/touchcontrollers/NavBarToHomeTouchController.java
@@ -22,6 +22,7 @@
 import static com.android.launcher3.LauncherState.OVERVIEW;
 import static com.android.launcher3.allapps.AllAppsTransitionController.ALL_APPS_PROGRESS;
 import static com.android.launcher3.anim.Interpolators.DEACCEL_3;
+import static com.android.launcher3.config.FeatureFlags.ENABLE_QUICKSTEP_LIVE_TILE;
 import static com.android.launcher3.touch.AbstractStateChangeTouchController.SUCCESS_TRANSITION_PROGRESS;
 import static com.android.systemui.shared.system.ActivityManagerWrapper.CLOSE_SYSTEM_WINDOWS_REASON_RECENTS;
 
@@ -138,8 +139,13 @@
             if (!recentsView.isRtl()) {
                 pullbackDist = -pullbackDist;
             }
-            Animator pullback = ObjectAnimator.ofFloat(recentsView, TRANSLATION_X, pullbackDist);
+            ObjectAnimator pullback = ObjectAnimator.ofFloat(recentsView, TRANSLATION_X,
+                    pullbackDist);
             pullback.setInterpolator(PULLBACK_INTERPOLATOR);
+            if (ENABLE_QUICKSTEP_LIVE_TILE.get()) {
+                pullback.addUpdateListener(
+                        valueAnimator -> recentsView.redrawLiveTile(false /* mightNeedToRefill */));
+            }
             anim.play(pullback);
         } else if (mStartState == ALL_APPS) {
             AnimatorSetBuilder builder = new AnimatorSetBuilder();
@@ -192,6 +198,11 @@
         boolean success = interpolatedProgress >= SUCCESS_TRANSITION_PROGRESS
                 || (velocity < 0 && fling);
         if (success) {
+            if (ENABLE_QUICKSTEP_LIVE_TILE.get()) {
+                RecentsView recentsView = mLauncher.getOverviewPanel();
+                recentsView.switchToScreenshot(null,
+                        () -> recentsView.finishRecentsAnimation(true /* toRecents */, null));
+            }
             mLauncher.getStateManager().goToState(mEndState, true,
                     () -> onSwipeInteractionCompleted(mEndState));
             if (mStartState != mEndState) {
diff --git a/quickstep/recents_ui_overrides/src/com/android/quickstep/util/AppWindowAnimationHelper.java b/quickstep/recents_ui_overrides/src/com/android/quickstep/util/AppWindowAnimationHelper.java
index 24e7f0e..4a39e73 100644
--- a/quickstep/recents_ui_overrides/src/com/android/quickstep/util/AppWindowAnimationHelper.java
+++ b/quickstep/recents_ui_overrides/src/com/android/quickstep/util/AppWindowAnimationHelper.java
@@ -169,7 +169,7 @@
             return null;
         }
 
-        float progress = params.progress;
+        float progress = Utilities.boundToRange(params.progress, 0, 1);
         updateCurrentRect(params);
 
         SurfaceParams[] surfaceParams = new SurfaceParams[params.targetSet.unfilteredApps.length];
diff --git a/quickstep/tests/src/com/android/quickstep/NavigationModeSwitchRule.java b/quickstep/tests/src/com/android/quickstep/NavigationModeSwitchRule.java
index 5158939..fa4c7b9 100644
--- a/quickstep/tests/src/com/android/quickstep/NavigationModeSwitchRule.java
+++ b/quickstep/tests/src/com/android/quickstep/NavigationModeSwitchRule.java
@@ -30,6 +30,7 @@
 import android.content.pm.PackageManager;
 import android.util.Log;
 
+import androidx.test.uiautomator.By;
 import androidx.test.uiautomator.UiDevice;
 
 import com.android.launcher3.tapl.LauncherInstrumentation;
@@ -80,7 +81,12 @@
             Mode mode = description.getAnnotation(NavigationModeSwitch.class).mode();
             return new Statement() {
                 private void assertTrue(String message, boolean condition) {
-                    mLauncher.checkForAnomaly();
+                    if (mLauncher.getDevice().hasObject(By.textStartsWith(""))) {
+                        // The condition above is "screen is not empty". We are not treating
+                        // "Screen is empty" as an anomaly here. It's an acceptable state when
+                        // Launcher just starts under instrumentation.
+                        mLauncher.checkForAnomaly();
+                    }
                     if (!condition) {
                         final AssertionError assertionError = new AssertionError(message);
                         FailureWatcher.onError(mLauncher.getDevice(), description, assertionError);
diff --git a/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java b/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java
index 8cd3bb6..428e647 100644
--- a/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java
+++ b/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java
@@ -248,6 +248,7 @@
     @Test
     @NavigationModeSwitch
     @PortraitLandscape
+    @Ignore // b/143285809
     public void testQuickSwitchFromApp() throws Exception {
         startTestActivity(2);
         startTestActivity(3);
diff --git a/src/com/android/launcher3/BubbleTextView.java b/src/com/android/launcher3/BubbleTextView.java
index ff5f33d..01e9b6e 100644
--- a/src/com/android/launcher3/BubbleTextView.java
+++ b/src/com/android/launcher3/BubbleTextView.java
@@ -496,7 +496,8 @@
         // Text should be visible everywhere but the hotseat.
         Object tag = getParent() instanceof FolderIcon ? ((View) getParent()).getTag() : getTag();
         ItemInfo info = tag instanceof ItemInfo ? (ItemInfo) tag : null;
-        return info == null || info.container != LauncherSettings.Favorites.CONTAINER_HOTSEAT;
+        return info == null || (info.container != LauncherSettings.Favorites.CONTAINER_HOTSEAT
+                && info.container != LauncherSettings.Favorites.CONTAINER_HOTSEAT_PREDICTION);
     }
 
     public void setTextVisibility(boolean visible) {
diff --git a/src/com/android/launcher3/InstallShortcutReceiver.java b/src/com/android/launcher3/InstallShortcutReceiver.java
index 125332d..21359f1 100644
--- a/src/com/android/launcher3/InstallShortcutReceiver.java
+++ b/src/com/android/launcher3/InstallShortcutReceiver.java
@@ -17,6 +17,7 @@
 package com.android.launcher3;
 
 import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
+import static com.android.launcher3.util.ShortcutUtil.fetchAndUpdateShortcutIconAsync;
 
 import android.appwidget.AppWidgetManager;
 import android.appwidget.AppWidgetProviderInfo;
@@ -44,6 +45,7 @@
 import androidx.annotation.WorkerThread;
 
 import com.android.launcher3.compat.UserManagerCompat;
+import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.icons.BitmapInfo;
 import com.android.launcher3.icons.GraphicsUtils;
 import com.android.launcher3.icons.LauncherIcons;
@@ -489,9 +491,13 @@
                 return Pair.create(si, null);
             } else if (shortcutInfo != null) {
                 WorkspaceItemInfo itemInfo = new WorkspaceItemInfo(shortcutInfo, mContext);
-                LauncherIcons li = LauncherIcons.obtain(mContext);
-                itemInfo.bitmap = li.createShortcutIcon(shortcutInfo);
-                li.recycle();
+                if (FeatureFlags.ENABLE_DEEP_SHORTCUT_ICON_CACHE.get()) {
+                    fetchAndUpdateShortcutIconAsync(mContext, itemInfo, shortcutInfo, true);
+                } else {
+                    LauncherIcons li = LauncherIcons.obtain(mContext);
+                    itemInfo.bitmap = li.createShortcutIcon(shortcutInfo);
+                    li.recycle();
+                }
                 return Pair.create(itemInfo, shortcutInfo);
             } else if (providerInfo != null) {
                 LauncherAppWidgetProviderInfo info = LauncherAppWidgetProviderInfo
diff --git a/src/com/android/launcher3/Utilities.java b/src/com/android/launcher3/Utilities.java
index 2032845..2bec0ba 100644
--- a/src/com/android/launcher3/Utilities.java
+++ b/src/com/android/launcher3/Utilities.java
@@ -586,7 +586,7 @@
             LauncherIcons li = LauncherIcons.obtain(appState.getContext());
             Bitmap badge = li.getShortcutInfoBadge(si, appState.getIconCache()).bitmap.icon;
             li.recycle();
-            float badgeSize = iconSize * LauncherIcons.getBadgeSizeForIconSize(iconSize);
+            float badgeSize = LauncherIcons.getBadgeSizeForIconSize(iconSize);
             float insetFraction = (iconSize - badgeSize) / iconSize;
             return new InsetDrawable(new FastBitmapDrawable(badge),
                     insetFraction, insetFraction, 0, 0);
diff --git a/src/com/android/launcher3/config/FeatureFlags.java b/src/com/android/launcher3/config/FeatureFlags.java
index 5689846..d622037 100644
--- a/src/com/android/launcher3/config/FeatureFlags.java
+++ b/src/com/android/launcher3/config/FeatureFlags.java
@@ -127,6 +127,9 @@
     public static final TogglableFlag ENABLE_HYBRID_HOTSEAT = new TogglableFlag(
             "ENABLE_HYBRID_HOTSEAT", false, "Fill gaps in hotseat with predicted apps");
 
+    public static final TogglableFlag ENABLE_DEEP_SHORTCUT_ICON_CACHE = new TogglableFlag(
+            "ENABLE_DEEP_SHORTCUT_ICON_CACHE", true, "R/W deep shortcut in IconCache");
+
     public static void initialize(Context context) {
         // Avoid the disk read for user builds
         if (Utilities.IS_DEBUG_DEVICE) {
diff --git a/src/com/android/launcher3/folder/FolderPagedView.java b/src/com/android/launcher3/folder/FolderPagedView.java
index 54b363e..3b5fd59 100644
--- a/src/com/android/launcher3/folder/FolderPagedView.java
+++ b/src/com/android/launcher3/folder/FolderPagedView.java
@@ -277,6 +277,7 @@
             page.removeAllViews();
             pages.add(page);
         }
+        mOrganizer.setFolderInfo(mFolder.getInfo());
         setupContentDimensions(itemCount);
 
         Iterator<CellLayout> pageItr = pages.iterator();
@@ -285,7 +286,6 @@
         int position = 0;
         int rank = 0;
 
-        mOrganizer.setFolderInfo(mFolder.getInfo());
         for (int i = 0; i < itemCount; i++) {
             View v = list.size() > i ? list.get(i) : null;
             if (currentPage == null || position >= mOrganizer.getMaxItemsPerPage()) {
diff --git a/src/com/android/launcher3/icons/IconCache.java b/src/com/android/launcher3/icons/IconCache.java
index f7faca6..4ac6ff4 100644
--- a/src/com/android/launcher3/icons/IconCache.java
+++ b/src/com/android/launcher3/icons/IconCache.java
@@ -28,6 +28,7 @@
 import android.content.pm.PackageInstaller;
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
+import android.content.pm.ShortcutInfo;
 import android.graphics.drawable.Drawable;
 import android.os.Handler;
 import android.os.Process;
@@ -49,6 +50,7 @@
 import com.android.launcher3.icons.cache.CachingLogic;
 import com.android.launcher3.icons.cache.HandlerRunnable;
 import com.android.launcher3.model.PackageItemInfo;
+import com.android.launcher3.shortcuts.ShortcutKey;
 import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.util.InstantAppResolver;
 import com.android.launcher3.util.PackageUserKey;
@@ -65,6 +67,7 @@
 
     private final CachingLogic<ComponentWithLabel> mComponentWithLabelCachingLogic;
     private final CachingLogic<LauncherActivityInfo> mLauncherActivityInfoCachingLogic;
+    private final CachingLogic<ShortcutInfo> mShortcutCachingLogic;
 
     private final LauncherApps mLauncherApps;
     private final UserManagerCompat mUserManager;
@@ -78,6 +81,7 @@
                 inv.fillResIconDpi, inv.iconBitmapSize, true /* inMemoryCache */);
         mComponentWithLabelCachingLogic = new ComponentCachingLogic(context, false);
         mLauncherActivityInfoCachingLogic = LauncherActivityCachingLogic.newInstance(context);
+        mShortcutCachingLogic = new ShortcutCachingLogic();
         mLauncherApps = mContext.getSystemService(LauncherApps.class);
         mUserManager = UserManagerCompat.getInstance(mContext);
         mInstantAppResolver = InstantAppResolver.newInstance(mContext);
@@ -176,6 +180,14 @@
     }
 
     /**
+     * Fill in info with the icon and label for deep shortcut.
+     */
+    public synchronized CacheEntry getDeepShortcutTitleAndIcon(ShortcutInfo info) {
+        return cacheLocked(ShortcutKey.fromInfo(info).componentName, info.getUserHandle(),
+                () -> info, mShortcutCachingLogic, false, false);
+    }
+
+    /**
      * Fill in {@param info} with the icon and label. If the
      * corresponding activity is not found, it reverts to the package icon.
      */
diff --git a/src/com/android/launcher3/icons/LauncherIcons.java b/src/com/android/launcher3/icons/LauncherIcons.java
index 3c4041a..4d3599e 100644
--- a/src/com/android/launcher3/icons/LauncherIcons.java
+++ b/src/com/android/launcher3/icons/LauncherIcons.java
@@ -25,12 +25,14 @@
 import android.os.Process;
 
 import androidx.annotation.Nullable;
+import androidx.annotation.WorkerThread;
 
 import com.android.launcher3.AppInfo;
 import com.android.launcher3.FastBitmapDrawable;
 import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.ItemInfoWithIcon;
 import com.android.launcher3.LauncherAppState;
+import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.graphics.IconShape;
 import com.android.launcher3.model.PackageItemInfo;
 import com.android.launcher3.shortcuts.DeepShortcutManager;
@@ -112,7 +114,6 @@
     }
 
     // below methods should also migrate to BaseIconFactory
-
     public BitmapInfo createShortcutIcon(ShortcutInfo shortcutInfo) {
         return createShortcutIcon(shortcutInfo, true /* badged */);
     }
@@ -121,12 +122,20 @@
         return createShortcutIcon(shortcutInfo, badged, null);
     }
 
-    public BitmapInfo createShortcutIcon(ShortcutInfo shortcutInfo,
-            boolean badged, @Nullable Supplier<ItemInfoWithIcon> fallbackIconProvider) {
+    public BitmapInfo createShortcutIcon(ShortcutInfo shortcutInfo, boolean badged,
+            @Nullable Supplier<ItemInfoWithIcon> fallbackIconProvider) {
+        if (FeatureFlags.ENABLE_DEEP_SHORTCUT_ICON_CACHE.get()) {
+            return createShortcutIconCached(shortcutInfo, badged, true, fallbackIconProvider);
+        } else {
+            return createShortcutIconLegacy(shortcutInfo, badged, fallbackIconProvider);
+        }
+    }
+
+    public BitmapInfo createShortcutIconLegacy(ShortcutInfo shortcutInfo, boolean badged,
+            @Nullable Supplier<ItemInfoWithIcon> fallbackIconProvider) {
         Drawable unbadgedDrawable = DeepShortcutManager.getInstance(mContext)
                 .getShortcutIconDrawable(shortcutInfo, mFillResIconDpi);
         IconCache cache = LauncherAppState.getInstance(mContext).getIconCache();
-
         final Bitmap unbadgedBitmap;
         if (unbadgedDrawable != null) {
             unbadgedBitmap = createScaledBitmapWithoutShadow(unbadgedDrawable, 0);
@@ -155,6 +164,44 @@
         return BitmapInfo.of(icon, badge.bitmap.color);
     }
 
+    @WorkerThread
+    public BitmapInfo createShortcutIconCached(ShortcutInfo shortcutInfo, boolean badged,
+            boolean useCache, @Nullable Supplier<ItemInfoWithIcon> fallbackIconProvider) {
+        IconCache cache = LauncherAppState.getInstance(mContext).getIconCache();
+        final BitmapInfo bitmapInfo;
+        if (useCache) {
+            bitmapInfo = cache.getDeepShortcutTitleAndIcon(shortcutInfo).bitmap;
+        } else {
+            bitmapInfo = new ShortcutCachingLogic().loadIcon(mContext, shortcutInfo);
+        }
+        final Bitmap unbadgedBitmap;
+        if (bitmapInfo.icon != null) {
+            unbadgedBitmap = bitmapInfo.icon;
+        } else {
+            if (fallbackIconProvider != null) {
+                // Fallback icons are already badged and with appropriate shadow
+                ItemInfoWithIcon fullIcon = fallbackIconProvider.get();
+                if (fullIcon != null && fullIcon.bitmap != null) {
+                    return fullIcon.bitmap;
+                }
+            }
+            unbadgedBitmap = cache.getDefaultIcon(Process.myUserHandle()).icon;
+        }
+
+        if (!badged) {
+            return BitmapInfo.of(unbadgedBitmap, Themes.getColorAccent(mContext));
+        }
+
+        final Bitmap unbadgedfinal = unbadgedBitmap;
+        final ItemInfoWithIcon badge = getShortcutInfoBadge(shortcutInfo, cache);
+
+        Bitmap icon = BitmapRenderer.createHardwareBitmap(mIconBitmapSize, mIconBitmapSize, (c) -> {
+            getShadowGenerator().recreateIcon(unbadgedfinal, c);
+            badgeWithDrawable(c, new FastBitmapDrawable(badge.bitmap));
+        });
+        return BitmapInfo.of(icon, badge.bitmap.color);
+    }
+
     public ItemInfoWithIcon getShortcutInfoBadge(ShortcutInfo shortcutInfo, IconCache cache) {
         ComponentName cn = shortcutInfo.getActivity();
         String badgePkg = shortcutInfo.getPackage();
diff --git a/src/com/android/launcher3/icons/ShortcutCachingLogic.java b/src/com/android/launcher3/icons/ShortcutCachingLogic.java
new file mode 100644
index 0000000..5c21470
--- /dev/null
+++ b/src/com/android/launcher3/icons/ShortcutCachingLogic.java
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2019 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.launcher3.icons;
+
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.pm.PackageInfo;
+import android.content.pm.ShortcutInfo;
+import android.graphics.drawable.Drawable;
+import android.os.UserHandle;
+
+import androidx.annotation.NonNull;
+
+import com.android.launcher3.LauncherAppState;
+import com.android.launcher3.config.FeatureFlags;
+import com.android.launcher3.icons.cache.CachingLogic;
+import com.android.launcher3.shortcuts.DeepShortcutManager;
+import com.android.launcher3.shortcuts.ShortcutKey;
+import com.android.launcher3.util.Themes;
+
+/**
+ * Caching logic for shortcuts.
+ */
+public class ShortcutCachingLogic implements CachingLogic<ShortcutInfo> {
+
+    @Override
+    public ComponentName getComponent(ShortcutInfo info) {
+        return ShortcutKey.fromInfo(info).componentName;
+    }
+
+    @Override
+    public UserHandle getUser(ShortcutInfo info) {
+        return info.getUserHandle();
+    }
+
+    @Override
+    public CharSequence getLabel(ShortcutInfo info) {
+        return info.getShortLabel();
+    }
+
+    @NonNull
+    @Override
+    public BitmapInfo loadIcon(Context context, ShortcutInfo info) {
+        try (LauncherIcons li = LauncherIcons.obtain(context)) {
+            Drawable unbadgedDrawable = DeepShortcutManager.getInstance(context)
+                    .getShortcutIconDrawable(info, LauncherAppState.getIDP(context).fillResIconDpi);
+            if (unbadgedDrawable == null) return BitmapInfo.LOW_RES_INFO;
+            return new BitmapInfo(li.createScaledBitmapWithoutShadow(
+                    unbadgedDrawable, 0), Themes.getColorAccent(context));
+        }
+    }
+
+    @Override
+    public long getLastUpdatedTime(ShortcutInfo shortcutInfo, PackageInfo info) {
+        if (shortcutInfo == null || !FeatureFlags.ENABLE_DEEP_SHORTCUT_ICON_CACHE.get()) {
+            return info.lastUpdateTime;
+        }
+        return Math.max(shortcutInfo.getLastChangedTimestamp(), info.lastUpdateTime);
+    }
+
+    @Override
+    public boolean addToMemCache() {
+        return false;
+    }
+}
diff --git a/src/com/android/launcher3/model/LoaderTask.java b/src/com/android/launcher3/model/LoaderTask.java
index 6383a5f..3a4085c 100644
--- a/src/com/android/launcher3/model/LoaderTask.java
+++ b/src/com/android/launcher3/model/LoaderTask.java
@@ -63,6 +63,7 @@
 import com.android.launcher3.icons.IconCache;
 import com.android.launcher3.icons.LauncherActivityCachingLogic;
 import com.android.launcher3.icons.LauncherIcons;
+import com.android.launcher3.icons.ShortcutCachingLogic;
 import com.android.launcher3.icons.cache.IconCacheUpdateHandler;
 import com.android.launcher3.logging.FileLog;
 import com.android.launcher3.pm.PackageInstallInfo;
@@ -71,7 +72,6 @@
 import com.android.launcher3.qsb.QsbContainerView;
 import com.android.launcher3.shortcuts.DeepShortcutManager;
 import com.android.launcher3.shortcuts.ShortcutKey;
-import com.android.launcher3.testing.TestProtocol;
 import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.util.IOUtils;
 import com.android.launcher3.util.LooperIdleLock;
@@ -174,7 +174,8 @@
         Object traceToken = TraceHelper.INSTANCE.beginSection(TAG);
         TimingLogger logger = new TimingLogger(TAG, "run");
         try (LauncherModel.LoaderTransaction transaction = mApp.getModel().beginLoader(this)) {
-            loadWorkspace();
+            List<ShortcutInfo> allShortcuts = new ArrayList<>();
+            loadWorkspace(allShortcuts);
             logger.addSplit("loadWorkspace");
 
             verifyNotStopped();
@@ -206,19 +207,33 @@
                     mApp.getModel()::onPackageIconsUpdated);
             logger.addSplit("update icon cache");
 
+            if (FeatureFlags.ENABLE_DEEP_SHORTCUT_ICON_CACHE.get()) {
+                verifyNotStopped();
+                logger.addSplit("save shortcuts in icon cache");
+                updateHandler.updateIcons(allShortcuts, new ShortcutCachingLogic(),
+                        mApp.getModel()::onPackageIconsUpdated);
+            }
+
             // Take a break
             waitForIdle();
             logger.addSplit("step 2 complete");
             verifyNotStopped();
 
             // third step
-            loadDeepShortcuts();
+            List<ShortcutInfo> allDeepShortcuts = loadDeepShortcuts();
             logger.addSplit("loadDeepShortcuts");
 
             verifyNotStopped();
             mResults.bindDeepShortcuts();
             logger.addSplit("bindDeepShortcuts");
 
+            if (FeatureFlags.ENABLE_DEEP_SHORTCUT_ICON_CACHE.get()) {
+                verifyNotStopped();
+                logger.addSplit("save deep shortcuts in icon cache");
+                updateHandler.updateIcons(allDeepShortcuts,
+                        new ShortcutCachingLogic(), (pkgs, user) -> { });
+            }
+
             // Take a break
             waitForIdle();
             logger.addSplit("step 3 complete");
@@ -256,7 +271,7 @@
         this.notify();
     }
 
-    private void loadWorkspace() {
+    private void loadWorkspace(List<ShortcutInfo> allDeepShortcuts) {
         final Context context = mApp.getContext();
         final ContentResolver contentResolver = context.getContentResolver();
         final PackageManagerHelper pmHelper = new PackageManagerHelper(context);
@@ -512,6 +527,7 @@
                                         info.runtimeStatusFlags |= FLAG_DISABLED_SUSPENDED;
                                     }
                                     intent = info.intent;
+                                    allDeepShortcuts.add(pinnedShortcut);
                                 } else {
                                     // Create a shortcut info in disabled mode for now.
                                     info = c.loadSimpleWorkspaceItem();
@@ -860,7 +876,8 @@
         return allActivityList;
     }
 
-    private void loadDeepShortcuts() {
+    private List<ShortcutInfo> loadDeepShortcuts() {
+        List<ShortcutInfo> allShortcuts = new ArrayList<>();
         mBgDataModel.deepShortcutMap.clear();
         mBgDataModel.hasShortcutHostPermission = mShortcutManager.hasHostPermission();
         if (mBgDataModel.hasShortcutHostPermission) {
@@ -868,10 +885,12 @@
                 if (mUserManager.isUserUnlocked(user)) {
                     List<ShortcutInfo> shortcuts =
                             mShortcutManager.queryForAllShortcuts(user);
+                    allShortcuts.addAll(shortcuts);
                     mBgDataModel.updateDeepShortcutCounts(null, user, shortcuts);
                 }
             }
         }
+        return allShortcuts;
     }
 
     public static boolean isValidProvider(AppWidgetProviderInfo provider) {
diff --git a/src/com/android/launcher3/pm/PinRequestHelper.java b/src/com/android/launcher3/pm/PinRequestHelper.java
index e13645c..a15399d 100644
--- a/src/com/android/launcher3/pm/PinRequestHelper.java
+++ b/src/com/android/launcher3/pm/PinRequestHelper.java
@@ -17,6 +17,7 @@
 package com.android.launcher3.pm;
 
 import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
+import static com.android.launcher3.util.ShortcutUtil.fetchAndUpdateShortcutIconAsync;
 
 import android.annotation.TargetApi;
 import android.content.Context;
@@ -31,6 +32,7 @@
 
 import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.WorkspaceItemInfo;
+import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.icons.LauncherIcons;
 
 public class PinRequestHelper {
@@ -81,11 +83,15 @@
             ShortcutInfo si = request.getShortcutInfo();
             WorkspaceItemInfo info = new WorkspaceItemInfo(si, context);
             // Apply the unbadged icon and fetch the actual icon asynchronously.
-            LauncherIcons li = LauncherIcons.obtain(context);
-            info.bitmap = li.createShortcutIcon(si, false /* badged */);
-            li.recycle();
-            LauncherAppState.getInstance(context).getModel()
-                    .updateAndBindWorkspaceItem(info, si);
+            if (FeatureFlags.ENABLE_DEEP_SHORTCUT_ICON_CACHE.get()) {
+                fetchAndUpdateShortcutIconAsync(context, info, si, false);
+            } else {
+                LauncherIcons li = LauncherIcons.obtain(context);
+                info.bitmap = li.createShortcutIcon(si, false /* badged */);
+                li.recycle();
+                LauncherAppState.getInstance(context).getModel()
+                        .updateAndBindWorkspaceItem(info, si);
+            }
             return info;
         } else {
             return null;
diff --git a/src/com/android/launcher3/shortcuts/ShortcutDragPreviewProvider.java b/src/com/android/launcher3/shortcuts/ShortcutDragPreviewProvider.java
index ee97641..3e59b61 100644
--- a/src/com/android/launcher3/shortcuts/ShortcutDragPreviewProvider.java
+++ b/src/com/android/launcher3/shortcuts/ShortcutDragPreviewProvider.java
@@ -25,7 +25,9 @@
 
 import com.android.launcher3.Launcher;
 import com.android.launcher3.Utilities;
+import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.graphics.DragPreviewProvider;
+import com.android.launcher3.icons.BitmapRenderer;
 
 /**
  * Extension of {@link DragPreviewProvider} which generates bitmaps scaled to the default icon size.
@@ -39,16 +41,27 @@
         mPositionShift = shift;
     }
 
+    @Override
     public Bitmap createDragBitmap() {
+        if (FeatureFlags.ENABLE_DEEP_SHORTCUT_ICON_CACHE.get()) {
+            int size = Launcher.getLauncher(mView.getContext()).getDeviceProfile().iconSizePx;
+            return BitmapRenderer.createHardwareBitmap(
+                    size + blurSizeOutline,
+                    size + blurSizeOutline,
+                    (c) -> drawDragViewOnBackground(c, size));
+        } else {
+            return createDragBitmapLegacy();
+        }
+    }
+
+    private Bitmap createDragBitmapLegacy() {
         Drawable d = mView.getBackground();
         Rect bounds = getDrawableBounds(d);
-
         int size = Launcher.getLauncher(mView.getContext()).getDeviceProfile().iconSizePx;
         final Bitmap b = Bitmap.createBitmap(
                 size + blurSizeOutline,
                 size + blurSizeOutline,
                 Bitmap.Config.ARGB_8888);
-
         Canvas canvas = new Canvas(b);
         canvas.translate(blurSizeOutline / 2, blurSizeOutline / 2);
         canvas.scale(((float) size) / bounds.width(), ((float) size) / bounds.height(), 0, 0);
@@ -57,6 +70,16 @@
         return b;
     }
 
+    private void drawDragViewOnBackground(Canvas canvas, float size) {
+        Drawable d = mView.getBackground();
+        Rect bounds = getDrawableBounds(d);
+
+        canvas.translate(blurSizeOutline / 2, blurSizeOutline / 2);
+        canvas.scale(size / bounds.width(), size / bounds.height(), 0, 0);
+        canvas.translate(bounds.left, bounds.top);
+        d.draw(canvas);
+    }
+
     @Override
     public float getScaleAndPosition(Bitmap preview, int[] outPos) {
         Launcher launcher = Launcher.getLauncher(mView.getContext());
diff --git a/src/com/android/launcher3/touch/BaseSwipeDetector.java b/src/com/android/launcher3/touch/BaseSwipeDetector.java
index 08d73d0..12ca5ee 100644
--- a/src/com/android/launcher3/touch/BaseSwipeDetector.java
+++ b/src/com/android/launcher3/touch/BaseSwipeDetector.java
@@ -33,6 +33,7 @@
  * swipe action happens.
  *
  * @see SingleAxisSwipeDetector
+ * @see BothAxesSwipeDetector
  */
 public abstract class BaseSwipeDetector {
 
diff --git a/src/com/android/launcher3/touch/BothAxesSwipeDetector.java b/src/com/android/launcher3/touch/BothAxesSwipeDetector.java
new file mode 100644
index 0000000..944391e
--- /dev/null
+++ b/src/com/android/launcher3/touch/BothAxesSwipeDetector.java
@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2019 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.launcher3.touch;
+
+import android.content.Context;
+import android.graphics.PointF;
+import android.view.MotionEvent;
+import android.view.ViewConfiguration;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.VisibleForTesting;
+
+import com.android.launcher3.Utilities;
+
+/**
+ * Two dimensional scroll/drag/swipe gesture detector that reports x and y displacement/velocity.
+ */
+public class BothAxesSwipeDetector extends BaseSwipeDetector {
+
+    public static final int DIRECTION_UP = 1 << 0;
+    // Note that this will track left instead of right in RTL.
+    public static final int DIRECTION_RIGHT = 1 << 1;
+    public static final int DIRECTION_DOWN = 1 << 2;
+    // Note that this will track right instead of left in RTL.
+    public static final int DIRECTION_LEFT = 1 << 3;
+
+    /* Client of this gesture detector can register a callback. */
+    private final Listener mListener;
+
+    private int mScrollDirections;
+
+    public BothAxesSwipeDetector(@NonNull Context context, @NonNull Listener l) {
+        this(ViewConfiguration.get(context), l, Utilities.isRtl(context.getResources()));
+    }
+
+    @VisibleForTesting
+    protected BothAxesSwipeDetector(@NonNull ViewConfiguration config, @NonNull Listener l,
+            boolean isRtl) {
+        super(config, isRtl);
+        mListener = l;
+    }
+
+    public void setDetectableScrollConditions(int scrollDirectionFlags, boolean ignoreSlop) {
+        mScrollDirections = scrollDirectionFlags;
+        mIgnoreSlopWhenSettling = ignoreSlop;
+    }
+
+    @Override
+    protected boolean shouldScrollStart(PointF displacement) {
+        // Check if the client is interested in scroll in current direction.
+        boolean canScrollUp = (mScrollDirections & DIRECTION_UP) > 0
+                && displacement.y <= -mTouchSlop;
+        boolean canScrollRight = (mScrollDirections & DIRECTION_RIGHT) > 0
+                && displacement.x >= mTouchSlop;
+        boolean canScrollDown = (mScrollDirections & DIRECTION_DOWN) > 0
+                && displacement.y >= mTouchSlop;
+        boolean canScrollLeft = (mScrollDirections & DIRECTION_LEFT) > 0
+                && displacement.x <= -mTouchSlop;
+        return canScrollUp || canScrollRight || canScrollDown || canScrollLeft;
+    }
+
+    @Override
+    protected void reportDragStartInternal(boolean recatch) {
+        mListener.onDragStart(!recatch);
+    }
+
+    @Override
+    protected void reportDraggingInternal(PointF displacement, MotionEvent event) {
+        mListener.onDrag(displacement, event);
+    }
+
+    @Override
+    protected void reportDragEndInternal(PointF velocity) {
+        mListener.onDragEnd(velocity);
+    }
+
+    /** Listener to receive updates on the swipe. */
+    public interface Listener {
+        /** @param start whether this was the original drag start, as opposed to a recatch. */
+        void onDragStart(boolean start);
+
+        boolean onDrag(PointF displacement, MotionEvent motionEvent);
+
+        void onDragEnd(PointF velocity);
+    }
+}
diff --git a/src/com/android/launcher3/touch/SingleAxisSwipeDetector.java b/src/com/android/launcher3/touch/SingleAxisSwipeDetector.java
index 0bf2ff6..f2ebc45 100644
--- a/src/com/android/launcher3/touch/SingleAxisSwipeDetector.java
+++ b/src/com/android/launcher3/touch/SingleAxisSwipeDetector.java
@@ -161,6 +161,7 @@
 
     /** Listener to receive updates on the swipe. */
     public interface Listener {
+        /** @param start whether this was the original drag start, as opposed to a recatch. */
         void onDragStart(boolean start);
 
         // TODO remove
diff --git a/src/com/android/launcher3/util/ShortcutUtil.java b/src/com/android/launcher3/util/ShortcutUtil.java
index 49c97da..a03b743 100644
--- a/src/com/android/launcher3/util/ShortcutUtil.java
+++ b/src/com/android/launcher3/util/ShortcutUtil.java
@@ -15,10 +15,19 @@
  */
 package com.android.launcher3.util;
 
+import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
+
+import android.content.Context;
+import android.content.pm.ShortcutInfo;
+
+import androidx.annotation.NonNull;
+
 import com.android.launcher3.ItemInfo;
+import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.LauncherSettings;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.WorkspaceItemInfo;
+import com.android.launcher3.icons.LauncherIcons;
 import com.android.launcher3.model.WidgetsModel;
 import com.android.launcher3.shortcuts.ShortcutKey;
 
@@ -61,6 +70,21 @@
                 && info instanceof WorkspaceItemInfo;
     }
 
+    /**
+     * Fetch the shortcut icon in background, then update the UI.
+     */
+    public static void fetchAndUpdateShortcutIconAsync(
+            @NonNull Context context, @NonNull WorkspaceItemInfo info, @NonNull ShortcutInfo si,
+            boolean badged) {
+        MODEL_EXECUTOR.execute(() -> {
+            try (LauncherIcons li = LauncherIcons.obtain(context)) {
+                info.bitmap = li.createShortcutIcon(si, badged, null);
+                LauncherAppState.getInstance(context).getModel()
+                        .updateAndBindWorkspaceItem(info, si);
+            }
+        });
+    }
+
     private static boolean isActive(ItemInfo info) {
         boolean isLoading = info instanceof WorkspaceItemInfo
                 && ((WorkspaceItemInfo) info).hasPromiseIconUi();
diff --git a/tests/AndroidManifest.xml b/tests/AndroidManifest.xml
index 24b5b02..5cf96c8 100644
--- a/tests/AndroidManifest.xml
+++ b/tests/AndroidManifest.xml
@@ -18,7 +18,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     package="com.android.launcher3.tests">
 
-    <uses-sdk android:targetSdkVersion="28" android:minSdkVersion="25"
+    <uses-sdk android:targetSdkVersion="29" android:minSdkVersion="25"
               tools:overrideLibrary="android.support.test.uiautomator.v18"/>
 
     <application android:debuggable="true">
diff --git a/tests/dummy_app/AndroidManifest.xml b/tests/dummy_app/AndroidManifest.xml
index 9d0a74a..f00138c 100644
--- a/tests/dummy_app/AndroidManifest.xml
+++ b/tests/dummy_app/AndroidManifest.xml
@@ -21,7 +21,7 @@
      to come from a domain that you own or have control over. -->
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.example.android.aardwolf">
-    <uses-sdk android:targetSdkVersion="28" android:minSdkVersion="21"/>
+    <uses-sdk android:targetSdkVersion="29" android:minSdkVersion="21"/>
     <application android:label="Aardwolf">
         <activity
             android:name="Activity1"