diff --git a/quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java b/quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java
index a68322d..088009a 100644
--- a/quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java
+++ b/quickstep/src/com/android/launcher3/BaseQuickstepLauncher.java
@@ -631,11 +631,10 @@
     @Override
     public void onDisplayInfoChanged(Context context, DisplayController.Info info, int flags) {
         super.onDisplayInfoChanged(context, info, flags);
-        // When changing screens with live tile active, finish the recents animation to close
-        // overview as it should be an interim state
-        if ((flags & CHANGE_ACTIVE_SCREEN) != 0 && ENABLE_QUICKSTEP_LIVE_TILE.get()) {
-            RecentsView recentsView = getOverviewPanel();
-            recentsView.finishRecentsAnimation(/* toRecents= */ true, null);
+        // When changing screens, force moving to rest state similar to StatefulActivity.onStop, as
+        // StatefulActivity isn't called consistently.
+        if ((flags & CHANGE_ACTIVE_SCREEN) != 0) {
+            getStateManager().moveToRestState();
         }
     }
 
diff --git a/quickstep/src/com/android/launcher3/appprediction/AppsDividerView.java b/quickstep/src/com/android/launcher3/appprediction/AppsDividerView.java
index 63a569a..1b0f967 100644
--- a/quickstep/src/com/android/launcher3/appprediction/AppsDividerView.java
+++ b/quickstep/src/com/android/launcher3/appprediction/AppsDividerView.java
@@ -282,8 +282,7 @@
 
     @Override
     public void setInsets(Rect insets, DeviceProfile grid) {
-        int leftRightPadding = grid.desiredWorkspaceLeftRightMarginPx
-                + grid.cellLayoutPaddingLeftRightPx;
+        int leftRightPadding = grid.allAppsLeftRightPadding;
         setPadding(leftRightPadding, getPaddingTop(), leftRightPadding, getPaddingBottom());
     }
 
diff --git a/quickstep/src/com/android/launcher3/appprediction/PredictionRowView.java b/quickstep/src/com/android/launcher3/appprediction/PredictionRowView.java
index 5242b3c..9ad8bb2 100644
--- a/quickstep/src/com/android/launcher3/appprediction/PredictionRowView.java
+++ b/quickstep/src/com/android/launcher3/appprediction/PredictionRowView.java
@@ -249,8 +249,7 @@
 
     @Override
     public void setInsets(Rect insets, DeviceProfile grid) {
-        int leftRightPadding = grid.desiredWorkspaceLeftRightMarginPx
-                + grid.cellLayoutPaddingLeftRightPx;
+        int leftRightPadding = grid.allAppsLeftRightPadding;
         setPadding(leftRightPadding, getPaddingTop(), leftRightPadding, getPaddingBottom());
     }
 
diff --git a/quickstep/src/com/android/launcher3/taskbar/StashedHandleView.java b/quickstep/src/com/android/launcher3/taskbar/StashedHandleView.java
index 0224bc4..6db5839 100644
--- a/quickstep/src/com/android/launcher3/taskbar/StashedHandleView.java
+++ b/quickstep/src/com/android/launcher3/taskbar/StashedHandleView.java
@@ -15,6 +15,10 @@
  */
 package com.android.launcher3.taskbar;
 
+import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
+import android.animation.ObjectAnimator;
+import android.annotation.Nullable;
 import android.content.Context;
 import android.graphics.Rect;
 import android.util.AttributeSet;
@@ -23,15 +27,20 @@
 import androidx.annotation.ColorInt;
 import androidx.core.content.ContextCompat;
 
+import com.android.launcher3.LauncherAnimUtils;
 import com.android.launcher3.R;
 
 public class StashedHandleView extends View {
 
+    private static final long COLOR_CHANGE_DURATION = 120;
+
     private final @ColorInt int mStashedHandleLightColor;
     private final @ColorInt int mStashedHandleDarkColor;
     private final Rect mSampledRegion = new Rect();
     private final int[] mTmpArr = new int[2];
 
+    private @Nullable ObjectAnimator mColorChangeAnim;
+
     public StashedHandleView(Context context) {
         this(context, null);
     }
@@ -54,17 +63,44 @@
                 R.color.taskbar_stashed_handle_dark_color);
     }
 
-    public void updateSampledRegion() {
+    /**
+     * Updates mSampledRegion to be the location of the stashedHandleBounds relative to the screen.
+     * @see #getSampledRegion()
+     */
+    public void updateSampledRegion(Rect stashedHandleBounds) {
         getLocationOnScreen(mTmpArr);
-        mSampledRegion.set(mTmpArr[0], mTmpArr[1], mTmpArr[0] + getWidth(),
-                mTmpArr[1] + getHeight());
+        mSampledRegion.set(stashedHandleBounds);
+        mSampledRegion.offset(mTmpArr[0], mTmpArr[1]);
     }
 
     public Rect getSampledRegion() {
         return mSampledRegion;
     }
 
-    public void updateHandleColor(boolean isRegionDark) {
-        setBackgroundColor(isRegionDark ? mStashedHandleLightColor : mStashedHandleDarkColor);
+    /**
+     * Updates the handle color.
+     * @param isRegionDark Whether the background behind the handle is dark, and thus the handle
+     *                     should be light (and vice versa).
+     * @param animate Whether to animate the change, or apply it immediately.
+     */
+    public void updateHandleColor(boolean isRegionDark, boolean animate) {
+        int newColor = isRegionDark ? mStashedHandleLightColor : mStashedHandleDarkColor;
+        if (mColorChangeAnim != null) {
+            mColorChangeAnim.cancel();
+        }
+        if (animate) {
+            mColorChangeAnim = ObjectAnimator.ofArgb(this,
+                    LauncherAnimUtils.VIEW_BACKGROUND_COLOR, newColor);
+            mColorChangeAnim.addListener(new AnimatorListenerAdapter() {
+                @Override
+                public void onAnimationEnd(Animator animation) {
+                    mColorChangeAnim = null;
+                }
+            });
+            mColorChangeAnim.setDuration(COLOR_CHANGE_DURATION);
+            mColorChangeAnim.start();
+        } else {
+            setBackgroundColor(newColor);
+        }
     }
 }
diff --git a/quickstep/src/com/android/launcher3/taskbar/StashedHandleViewController.java b/quickstep/src/com/android/launcher3/taskbar/StashedHandleViewController.java
index 2858d7c..10da826 100644
--- a/quickstep/src/com/android/launcher3/taskbar/StashedHandleViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/StashedHandleViewController.java
@@ -70,7 +70,8 @@
         mPrefs = Utilities.getPrefs(mActivity);
         mStashedHandleView = stashedHandleView;
         mStashedHandleView.updateHandleColor(
-                mPrefs.getBoolean(SHARED_PREFS_STASHED_HANDLE_REGION_DARK_KEY, false));
+                mPrefs.getBoolean(SHARED_PREFS_STASHED_HANDLE_REGION_DARK_KEY, false),
+                false /* animate */);
         final Resources resources = mActivity.getResources();
         mStashedHandleWidth = resources.getDimensionPixelSize(R.dimen.taskbar_stashed_handle_width);
         mStashedHandleHeight = resources.getDimensionPixelSize(
@@ -79,7 +80,7 @@
                 new RegionSamplingHelper.SamplingCallback() {
                     @Override
                     public void onRegionDarknessChanged(boolean isRegionDark) {
-                        mStashedHandleView.updateHandleColor(isRegionDark);
+                        mStashedHandleView.updateHandleColor(isRegionDark, true /* animate */);
                         mPrefs.edit().putBoolean(SHARED_PREFS_STASHED_HANDLE_REGION_DARK_KEY,
                                 isRegionDark).apply();
                     }
@@ -109,6 +110,7 @@
                         stashedCenterY - mStashedHandleHeight / 2,
                         stashedCenterX + mStashedHandleWidth / 2,
                         stashedCenterY + mStashedHandleHeight / 2);
+                mStashedHandleView.updateSampledRegion(mStashedHandleBounds);
                 mStashedHandleRadius = view.getHeight() / 2f;
                 outline.setRoundRect(mStashedHandleBounds, mStashedHandleRadius);
             }
@@ -154,7 +156,7 @@
     public void onIsStashed(boolean isStashed) {
         mRegionSamplingHelper.setWindowVisible(isStashed);
         if (isStashed) {
-            mStashedHandleView.updateSampledRegion();
+            mStashedHandleView.updateSampledRegion(mStashedHandleBounds);
             mRegionSamplingHelper.start(mStashedHandleView.getSampledRegion());
         } else {
             mRegionSamplingHelper.stop();
diff --git a/res/values/attrs.xml b/res/values/attrs.xml
index 720d736..9c20e1f 100644
--- a/res/values/attrs.xml
+++ b/res/values/attrs.xml
@@ -193,6 +193,8 @@
 
         <attr name="borderSpacingDps" format="float" />
 
+        <attr name="allAppsCellSpacingDps" format="float" />
+
         <attr name="iconImageSize" format="float" />
         <!-- landscapeIconSize defaults to iconImageSize, if not specified -->
         <attr name="landscapeIconSize" format="float" />
diff --git a/src/com/android/launcher3/DeviceProfile.java b/src/com/android/launcher3/DeviceProfile.java
index c7ae373..192fe30 100644
--- a/src/com/android/launcher3/DeviceProfile.java
+++ b/src/com/android/launcher3/DeviceProfile.java
@@ -168,11 +168,13 @@
     public int qsbBottomMarginPx;
 
     // All apps
+    public int allAppsCellSpacingPx;
     public int allAppsOpenVerticalTranslate;
     public int allAppsCellHeightPx;
     public int allAppsCellWidthPx;
     public int allAppsIconSizePx;
     public int allAppsIconDrawablePaddingPx;
+    public int allAppsLeftRightPadding;
     public final int numShownAllAppsColumns;
     public float allAppsIconTextSizePx;
 
@@ -283,6 +285,7 @@
         folderContentPaddingTop = res.getDimensionPixelSize(R.dimen.folder_content_padding_top);
 
         setCellLayoutBorderSpacing(pxFromDp(inv.borderSpacing, mMetrics, 1f));
+        allAppsCellSpacingPx = pxFromDp(inv.allAppsCellSpacing, mMetrics, 1f);
         cellLayoutBorderSpacingOriginalPx = cellLayoutBorderSpacingPx;
         folderCellLayoutBorderSpacingPx = cellLayoutBorderSpacingPx;
 
@@ -293,10 +296,7 @@
                 : res.getDimensionPixelSize(R.dimen.dynamic_grid_cell_layout_padding);
 
         if (isTwoPanels) {
-            cellLayoutPaddingLeftRightPx = res.getDimensionPixelSize(
-                    isLandscape
-                            ? R.dimen.two_panels_home_side_padding_landscape
-                            : R.dimen.two_panels_home_side_padding_portrait);
+            cellLayoutPaddingLeftRightPx = 0;
             cellLayoutBottomPaddingPx = 0;
         } else if (isLandscape) {
             cellLayoutPaddingLeftRightPx = 0;
@@ -547,6 +547,17 @@
                 + textHeight + (topBottomPadding * 2);
     }
 
+    private void updateAllAppsWidth() {
+        if (isTwoPanels) {
+            int usedWidth = (allAppsCellWidthPx * numShownAllAppsColumns)
+                    + (allAppsCellSpacingPx * (numShownAllAppsColumns + 1));
+            allAppsLeftRightPadding = Math.max(1, (availableWidthPx - usedWidth) / 2);
+        } else {
+            allAppsLeftRightPadding =
+                    desiredWorkspaceLeftRightMarginPx + cellLayoutPaddingLeftRightPx;
+        }
+    }
+
     /**
      * Returns the amount of extra (or unused) vertical space.
      */
@@ -666,6 +677,7 @@
             allAppsCellHeightPx = getCellSize().y;
         }
         allAppsCellWidthPx = allAppsIconSizePx + allAppsIconDrawablePaddingPx;
+        updateAllAppsWidth();
 
         if (isVerticalLayout) {
             hideWorkspaceLabelsIfNotEnoughSpace();
@@ -802,7 +814,9 @@
         Point padding = getTotalWorkspacePadding();
 
         int numColumns = isTwoPanels ? inv.numColumns * 2 : inv.numColumns;
-        int screenWidthPx = availableWidthPx - padding.x - 2 * cellLayoutPaddingLeftRightPx;
+        int cellLayoutTotalPadding =
+                isTwoPanels ? 4 * cellLayoutPaddingLeftRightPx : 2 * cellLayoutPaddingLeftRightPx;
+        int screenWidthPx = availableWidthPx - padding.x - cellLayoutTotalPadding;
         result.x = calculateCellWidth(screenWidthPx, cellLayoutBorderSpacingPx, numColumns);
         result.y = calculateCellHeight(availableHeightPx - padding.y
                 - cellLayoutBottomPaddingPx, cellLayoutBorderSpacingPx, inv.numRows);
@@ -832,33 +846,15 @@
                 padding.right = hotseatBarSizePx;
             }
         } else {
+            // Pad the bottom of the workspace with search/hotseat bar sizes
             int hotseatTop = hotseatBarSizePx;
             int paddingBottom = hotseatTop + workspacePageIndicatorHeight
                     + workspaceBottomPadding - mWorkspacePageIndicatorOverlapWorkspace;
-            if (isTablet) {
-                // Pad the left and right of the workspace to ensure consistent spacing
-                // between all icons
-                // The amount of screen space available for left/right padding.
-                int availablePaddingX = Math.max(0, widthPx - ((inv.numColumns * cellWidthPx) +
-                        ((inv.numColumns - 1) * cellWidthPx)));
-                availablePaddingX = (int) Math.min(availablePaddingX,
-                        widthPx * MAX_HORIZONTAL_PADDING_PERCENT);
-                int hotseatVerticalPadding = hotseatBarTopPaddingPx + hotseatBarBottomPaddingPx;
-                int availablePaddingY = Math.max(0, heightPx - edgeMarginPx - paddingBottom
-                        - (2 * inv.numRows * cellHeightPx) - hotseatVerticalPadding);
-                padding.set(availablePaddingX / 2, edgeMarginPx + availablePaddingY / 2,
-                        availablePaddingX / 2, paddingBottom + availablePaddingY / 2);
 
-                if (isTwoPanels) {
-                    padding.set(0, padding.top, 0, padding.bottom);
-                }
-            } else {
-                // Pad the top and bottom of the workspace with search/hotseat bar sizes
-                padding.set(desiredWorkspaceLeftRightMarginPx,
-                        workspaceTopPadding + (isScalableGrid ? 0 : edgeMarginPx),
-                        desiredWorkspaceLeftRightMarginPx,
-                        paddingBottom);
-            }
+            padding.set(desiredWorkspaceLeftRightMarginPx,
+                    (isScalableGrid ? workspaceTopPadding : edgeMarginPx),
+                    desiredWorkspaceLeftRightMarginPx,
+                    paddingBottom);
         }
     }
 
@@ -1117,6 +1113,7 @@
         writer.println(prefix + pxToDpStr("iconScale", iconScale));
         writer.println(prefix + pxToDpStr("cellScaleToFit ", cellScaleToFit));
         writer.println(prefix + pxToDpStr("extraSpace", extraSpace));
+        writer.println(prefix + pxToDpStr("unscaled extraSpace", extraSpace / iconScale));
 
         if (inv.devicePaddings != null) {
             int unscaledExtraSpace = (int) (extraSpace / iconScale);
diff --git a/src/com/android/launcher3/InvariantDeviceProfile.java b/src/com/android/launcher3/InvariantDeviceProfile.java
index 5f441d1..8631040 100644
--- a/src/com/android/launcher3/InvariantDeviceProfile.java
+++ b/src/com/android/launcher3/InvariantDeviceProfile.java
@@ -108,6 +108,7 @@
     public float iconTextSize;
     public float allAppsIconSize;
     public float allAppsIconTextSize;
+    public float allAppsCellSpacing;
     public boolean isSplitDisplay;
 
     public float minCellHeight;
@@ -153,7 +154,8 @@
      */
     public List<DeviceProfile> supportedProfiles = Collections.EMPTY_LIST;
 
-    @Nullable public DevicePaddings devicePaddings;
+    @Nullable
+    public DevicePaddings devicePaddings;
 
     public Point defaultWallpaperSize;
     public Rect defaultWidgetPadding;
@@ -161,7 +163,8 @@
     private final ArrayList<OnIDPChangeListener> mChangeListeners = new ArrayList<>();
 
     @VisibleForTesting
-    public InvariantDeviceProfile() {}
+    public InvariantDeviceProfile() {
+    }
 
     @TargetApi(23)
     private InvariantDeviceProfile(Context context) {
@@ -219,6 +222,7 @@
         result.minCellHeight = defaultDisplayOption.minCellHeight;
         result.minCellWidth = defaultDisplayOption.minCellWidth;
         result.borderSpacing = defaultDisplayOption.borderSpacing;
+        result.allAppsCellSpacing = defaultDisplayOption.allAppsCellSpacing;
 
         initGrid(context, myInfo, result, false);
     }
@@ -283,6 +287,7 @@
         twoPanelLandscapeMinCellHeightDps = displayOption.twoPanelLandscapeMinCellHeightDps;
         twoPanelLandscapeMinCellWidthDps = displayOption.twoPanelLandscapeMinCellWidthDps;
         borderSpacing = displayOption.borderSpacing;
+        allAppsCellSpacing = displayOption.allAppsCellSpacing;
 
         numShownHotseatIcons = closestProfile.numHotseatIcons;
         numDatabaseHotseatIcons = isSplitDisplay
@@ -356,7 +361,7 @@
     }
 
     private Object[] toModelState() {
-        return new Object[] {
+        return new Object[]{
                 numColumns, numRows, numDatabaseHotseatIcons, iconBitmapSize, fillResIconDpi,
                 numDatabaseAllAppsColumns, dbFile};
     }
@@ -402,7 +407,7 @@
                     }
                 }
             }
-        } catch (IOException|XmlPullParserException e) {
+        } catch (IOException | XmlPullParserException e) {
             throw new RuntimeException(e);
         }
 
@@ -456,7 +461,7 @@
 
     private int getLauncherIconDensity(int requiredSize) {
         // Densities typically defined by an app.
-        int[] densityBuckets = new int[] {
+        int[] densityBuckets = new int[]{
                 DisplayMetrics.DENSITY_LOW,
                 DisplayMetrics.DENSITY_MEDIUM,
                 DisplayMetrics.DENSITY_TV,
@@ -596,8 +601,8 @@
         // We will use these two data points to extrapolate how much the wallpaper parallax effect
         // to span (ie travel) at any aspect ratio:
 
-        final float ASPECT_RATIO_LANDSCAPE = 16/10f;
-        final float ASPECT_RATIO_PORTRAIT = 10/16f;
+        final float ASPECT_RATIO_LANDSCAPE = 16 / 10f;
+        final float ASPECT_RATIO_PORTRAIT = 10 / 16f;
         final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE = 1.5f;
         final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT = 1.2f;
 
@@ -607,7 +612,8 @@
         //   (10/16)x + y = 1.2
         // We solve for x and y and end up with a final formula:
         final float x =
-                (WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE - WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT) /
+                (WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE
+                        - WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT) /
                         (ASPECT_RATIO_LANDSCAPE - ASPECT_RATIO_PORTRAIT);
         final float y = WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT - x * ASPECT_RATIO_PORTRAIT;
         return x * aspectRatio + y;
@@ -719,6 +725,7 @@
         private float twoPanelPortraitMinCellWidthDps;
         private float twoPanelLandscapeMinCellHeightDps;
         private float twoPanelLandscapeMinCellWidthDps;
+        private float allAppsCellSpacing;
         private float borderSpacing;
 
         private final float[] iconSizes = new float[COUNT_TOTAL];
@@ -750,6 +757,8 @@
                     R.styleable.ProfileDisplayOption_twoPanelLandscapeMinCellWidthDps,
                     twoPanelPortraitMinCellWidthDps);
             borderSpacing = a.getFloat(R.styleable.ProfileDisplayOption_borderSpacingDps, 0);
+            allAppsCellSpacing = a.getFloat(R.styleable.ProfileDisplayOption_allAppsCellSpacingDps,
+                    borderSpacing);
 
             iconSizes[INDEX_DEFAULT] =
                     a.getFloat(R.styleable.ProfileDisplayOption_iconImageSize, 0);
@@ -810,6 +819,7 @@
             twoPanelLandscapeMinCellHeightDps *= w;
             twoPanelLandscapeMinCellWidthDps *= w;
             borderSpacing *= w;
+            allAppsCellSpacing *= w;
             return this;
         }
 
@@ -825,6 +835,7 @@
             twoPanelLandscapeMinCellHeightDps += p.twoPanelLandscapeMinCellHeightDps;
             twoPanelLandscapeMinCellWidthDps += p.twoPanelLandscapeMinCellWidthDps;
             borderSpacing += p.borderSpacing;
+            allAppsCellSpacing += p.allAppsCellSpacing;
             return this;
         }
     }
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 0340694..f429d76 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -2132,6 +2132,10 @@
 
         IntSet result = new IntSet();
         if (visibleIds.isEmpty()) {
+            if (TestProtocol.sDebugTracing) {
+                Log.d(TestProtocol.NULL_INT_SET, "getPagesToBindSynchronously (1): "
+                        + result);
+            }
             return result;
         }
         for (int id : orderedScreenIds.toArray()) {
@@ -2152,6 +2156,10 @@
             // pages being hidden in single panel.
             result.add(pairId);
         }
+        if (TestProtocol.sDebugTracing) {
+            Log.d(TestProtocol.NULL_INT_SET, "getPagesToBindSynchronously (2): "
+                    + result);
+        }
         return result;
     }
 
@@ -2297,7 +2305,7 @@
             final boolean focusFirstItemForAccessibility) {
         // Get the list of added items and intersect them with the set of items here
         final Collection<Animator> bounceAnims = new ArrayList<>();
-        final boolean animateIcons = forceAnimateIcons && canRunNewAppsAnimation();
+        boolean canAnimatePageChange = canAnimatePageChange();
         Workspace workspace = mWorkspace;
         int newItemsScreenId = -1;
         int end = items.size();
@@ -2358,7 +2366,7 @@
                 }
             }
             workspace.addInScreenFromBind(view, item);
-            if (animateIcons) {
+            if (forceAnimateIcons) {
                 // Animate all the applications up now
                 view.setAlpha(0f);
                 view.setScaleX(0f);
@@ -2374,7 +2382,7 @@
 
         View viewToFocus = newView;
         // Animate to the correct pager
-        if (animateIcons && newItemsScreenId > -1) {
+        if (forceAnimateIcons && newItemsScreenId > -1) {
             AnimatorSet anim = new AnimatorSet();
             anim.playTogether(bounceAnims);
             if (focusFirstItemForAccessibility && viewToFocus != null) {
@@ -2390,7 +2398,7 @@
             final int newScreenIndex = mWorkspace.getPageIndexForScreenId(newItemsScreenId);
             final Runnable startBounceAnimRunnable = anim::start;
 
-            if (newItemsScreenId != currentScreenId) {
+            if (canAnimatePageChange && newItemsScreenId != currentScreenId) {
                 // We post the animation slightly delayed to prevent slowdowns
                 // when we are loading right after we return to launcher.
                 mWorkspace.postDelayed(new Runnable() {
@@ -2671,7 +2679,7 @@
         TraceHelper.INSTANCE.endSection(traceToken);
     }
 
-    private boolean canRunNewAppsAnimation() {
+    private boolean canAnimatePageChange() {
         if (mDragController.isDragging()) {
             return false;
         } else {
diff --git a/src/com/android/launcher3/PagedView.java b/src/com/android/launcher3/PagedView.java
index d534c5d..523ac72 100644
--- a/src/com/android/launcher3/PagedView.java
+++ b/src/com/android/launcher3/PagedView.java
@@ -638,7 +638,10 @@
     }
 
     private int getPageWidthSize(int widthSize) {
-        return (widthSize - mInsets.left - mInsets.right) / getPanelCount();
+        // It's necessary to add the padding back because it is remove when measuring children,
+        // like when MeasureSpec.getSize in CellLayout.
+        return (widthSize - mInsets.left - mInsets.right - getPaddingLeft() - getPaddingRight())
+                / getPanelCount() + getPaddingLeft() + getPaddingRight();
     }
 
     @Override
diff --git a/src/com/android/launcher3/Workspace.java b/src/com/android/launcher3/Workspace.java
index c5e9dd2..6ce2930 100644
--- a/src/com/android/launcher3/Workspace.java
+++ b/src/com/android/launcher3/Workspace.java
@@ -342,16 +342,15 @@
         for (int i = 0; i < numberOfScreens; i++) {
             int paddingLeft = paddingLeftRight;
             int paddingRight = paddingLeftRight;
+            // Add missing cellLayout border in-between panels.
             if (panelCount > 1) {
                 if (i % panelCount == leftPanelModulus) {
-                    paddingLeft = paddingLeftRight;
-                    paddingRight = grid.cellLayoutBorderSpacingPx / 2;
+                    paddingRight += grid.cellLayoutBorderSpacingPx / 2;
                 } else if (i % panelCount == rightPanelModulus) { // right side panel
-                    paddingLeft = grid.cellLayoutBorderSpacingPx / 2;
-                    paddingRight = paddingLeftRight;
+                    paddingLeft += grid.cellLayoutBorderSpacingPx / 2;
                 } else { // middle panel
-                    paddingLeft = grid.cellLayoutBorderSpacingPx / 2;
-                    paddingRight = grid.cellLayoutBorderSpacingPx / 2;
+                    paddingLeft += grid.cellLayoutBorderSpacingPx / 2;
+                    paddingRight += grid.cellLayoutBorderSpacingPx / 2;
                 }
             }
             // SparseArrayMap doesn't keep the order
diff --git a/src/com/android/launcher3/allapps/AllAppsContainerView.java b/src/com/android/launcher3/allapps/AllAppsContainerView.java
index 9a5fd05..3f1f915 100644
--- a/src/com/android/launcher3/allapps/AllAppsContainerView.java
+++ b/src/com/android/launcher3/allapps/AllAppsContainerView.java
@@ -382,12 +382,10 @@
     public void setInsets(Rect insets) {
         mInsets.set(insets);
         DeviceProfile grid = mLauncher.getDeviceProfile();
-        int leftRightPadding = grid.desiredWorkspaceLeftRightMarginPx
-                + grid.cellLayoutPaddingLeftRightPx;
 
         for (int i = 0; i < mAH.length; i++) {
             mAH[i].padding.bottom = insets.bottom;
-            mAH[i].padding.left = mAH[i].padding.right = leftRightPadding;
+            mAH[i].padding.left = mAH[i].padding.right = grid.allAppsLeftRightPadding;
             mAH[i].applyPadding();
         }
 
diff --git a/src/com/android/launcher3/graphics/LauncherPreviewRenderer.java b/src/com/android/launcher3/graphics/LauncherPreviewRenderer.java
index b4907e8..e09b38b 100644
--- a/src/com/android/launcher3/graphics/LauncherPreviewRenderer.java
+++ b/src/com/android/launcher3/graphics/LauncherPreviewRenderer.java
@@ -230,16 +230,19 @@
         CellLayout firstScreen = mRootView.findViewById(R.id.workspace);
         firstScreen.setPadding(mDp.workspacePadding.left + mDp.cellLayoutPaddingLeftRightPx,
                 mDp.workspacePadding.top,
-                mDp.workspacePadding.right + mDp.cellLayoutBorderSpacingPx / 2,
+                (mDp.isTwoPanels ? mDp.cellLayoutBorderSpacingPx / 2 : mDp.workspacePadding.right)
+                        + mDp.cellLayoutPaddingLeftRightPx,
                 mDp.workspacePadding.bottom);
         mWorkspaceScreens.put(FIRST_SCREEN_ID, firstScreen);
 
         if (mDp.isTwoPanels) {
             CellLayout rightPanel = mRootView.findViewById(R.id.workspace_right);
-            rightPanel.setPadding(mDp.workspacePadding.left + mDp.cellLayoutBorderSpacingPx / 2,
+            rightPanel.setPadding(
+                    mDp.cellLayoutBorderSpacingPx / 2 + mDp.cellLayoutPaddingLeftRightPx,
                     mDp.workspacePadding.top,
                     mDp.workspacePadding.right + mDp.cellLayoutPaddingLeftRightPx,
-                    mDp.workspacePadding.bottom);
+                    mDp.workspacePadding.bottom
+            );
             mWorkspaceScreens.put(Workspace.SECOND_SCREEN_ID, rightPanel);
         }
 
diff --git a/src/com/android/launcher3/model/BaseLoaderResults.java b/src/com/android/launcher3/model/BaseLoaderResults.java
index 0e132c2..e9feb1c 100644
--- a/src/com/android/launcher3/model/BaseLoaderResults.java
+++ b/src/com/android/launcher3/model/BaseLoaderResults.java
@@ -32,6 +32,7 @@
 import com.android.launcher3.model.data.AppInfo;
 import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.model.data.LauncherAppWidgetInfo;
+import com.android.launcher3.testing.TestProtocol;
 import com.android.launcher3.util.IntArray;
 import com.android.launcher3.util.IntSet;
 import com.android.launcher3.util.LooperExecutor;
@@ -173,8 +174,18 @@
             ArrayList<LauncherAppWidgetInfo> currentAppWidgets = new ArrayList<>();
             ArrayList<LauncherAppWidgetInfo> otherAppWidgets = new ArrayList<>();
 
+            if (TestProtocol.sDebugTracing) {
+                Log.d(TestProtocol.NULL_INT_SET, "bind (1) currentScreenIds: "
+                        + currentScreenIds
+                        + ", mCallBacks: "
+                        + mCallbacks.getClass().getSimpleName());
+            }
             filterCurrentWorkspaceItems(currentScreenIds, mWorkspaceItems, currentWorkspaceItems,
                     otherWorkspaceItems);
+            if (TestProtocol.sDebugTracing) {
+                Log.d(TestProtocol.NULL_INT_SET, "bind (2) currentScreenIds: "
+                        + currentScreenIds);
+            }
             filterCurrentWorkspaceItems(currentScreenIds, mAppWidgets, currentAppWidgets,
                     otherAppWidgets);
             final InvariantDeviceProfile idp = mApp.getInvariantDeviceProfile();
diff --git a/src/com/android/launcher3/model/ModelUtils.java b/src/com/android/launcher3/model/ModelUtils.java
index 58aa9e5..ef5eef1 100644
--- a/src/com/android/launcher3/model/ModelUtils.java
+++ b/src/com/android/launcher3/model/ModelUtils.java
@@ -31,6 +31,7 @@
 import com.android.launcher3.icons.LauncherIcons;
 import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.model.data.WorkspaceItemInfo;
+import com.android.launcher3.testing.TestProtocol;
 import com.android.launcher3.util.IntArray;
 import com.android.launcher3.util.IntSet;
 
@@ -66,6 +67,10 @@
                 (lhs, rhs) -> Integer.compare(lhs.container, rhs.container));
         for (T info : allWorkspaceItems) {
             if (info.container == LauncherSettings.Favorites.CONTAINER_DESKTOP) {
+                if (TestProtocol.sDebugTracing) {
+                    Log.d(TestProtocol.NULL_INT_SET, "filterCurrentWorkspaceItems: "
+                            + currentScreenIds);
+                }
                 if (currentScreenIds.contains(info.screenId)) {
                     currentScreenItems.add(info);
                     itemsOnScreen.add(info.id);
diff --git a/src/com/android/launcher3/testing/TestProtocol.java b/src/com/android/launcher3/testing/TestProtocol.java
index ddd2534..ce01d4e 100644
--- a/src/com/android/launcher3/testing/TestProtocol.java
+++ b/src/com/android/launcher3/testing/TestProtocol.java
@@ -120,4 +120,5 @@
     public static final String WORK_PROFILE_REMOVED = "b/159671700";
     public static final String TASK_VIEW_ID_CRASH = "b/195430732";
     public static final String NO_DROP_TARGET = "b/195031154";
+    public static final String NULL_INT_SET = "b/200572078";
 }