diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarView.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarView.java
index 367bf6c..c81bf7a 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarView.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarView.java
@@ -354,7 +354,8 @@
                             break;
                         case ITEM_TYPE_APP_PAIR:
                             hotseatView = AppPairIcon.inflateIcon(
-                                    expectedLayoutResId, mActivityContext, this, folderInfo);
+                                    expectedLayoutResId, mActivityContext, this, folderInfo,
+                                    BubbleTextView.DISPLAY_TASKBAR);
                             ((AppPairIcon) hotseatView).setTextVisible(false);
                             break;
                         default:
diff --git a/src/com/android/launcher3/BubbleTextView.java b/src/com/android/launcher3/BubbleTextView.java
index 3ae1ce1..b9daf28 100644
--- a/src/com/android/launcher3/BubbleTextView.java
+++ b/src/com/android/launcher3/BubbleTextView.java
@@ -58,7 +58,6 @@
 import androidx.annotation.VisibleForTesting;
 
 import com.android.launcher3.accessibility.BaseAccessibilityDelegate;
-import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.dot.DotInfo;
 import com.android.launcher3.dragndrop.DragOptions.PreDragCondition;
 import com.android.launcher3.dragndrop.DraggableView;
@@ -96,10 +95,10 @@
 public class BubbleTextView extends TextView implements ItemInfoUpdateReceiver,
         IconLabelDotView, DraggableView, Reorderable {
 
-    private static final int DISPLAY_WORKSPACE = 0;
+    public static final int DISPLAY_WORKSPACE = 0;
     public static final int DISPLAY_ALL_APPS = 1;
-    private static final int DISPLAY_FOLDER = 2;
-    protected static final int DISPLAY_TASKBAR = 5;
+    public static final int DISPLAY_FOLDER = 2;
+    public static final int DISPLAY_TASKBAR = 5;
     public static final int DISPLAY_SEARCH_RESULT = 6;
     public static final int DISPLAY_SEARCH_RESULT_SMALL = 7;
     public static final int DISPLAY_PREDICTION_ROW = 8;
diff --git a/src/com/android/launcher3/apppairs/AppPairIcon.java b/src/com/android/launcher3/apppairs/AppPairIcon.java
index a3800f7..12fc298 100644
--- a/src/com/android/launcher3/apppairs/AppPairIcon.java
+++ b/src/com/android/launcher3/apppairs/AppPairIcon.java
@@ -16,13 +16,14 @@
 
 package com.android.launcher3.apppairs;
 
+import static com.android.launcher3.BubbleTextView.DISPLAY_FOLDER;
+
 import android.content.Context;
 import android.graphics.Canvas;
+import android.graphics.Paint;
 import android.graphics.Rect;
 import android.util.AttributeSet;
-import android.util.Log;
 import android.view.LayoutInflater;
-import android.view.View;
 import android.view.ViewGroup;
 import android.widget.FrameLayout;
 
@@ -38,7 +39,6 @@
 import com.android.launcher3.util.MultiTranslateDelegate;
 import com.android.launcher3.views.ActivityContext;
 
-import java.util.Collections;
 import java.util.Comparator;
 import java.util.function.Predicate;
 
@@ -62,6 +62,9 @@
     private BubbleTextView mAppPairName;
     // The underlying ItemInfo that stores info about the app pair members, etc.
     private FolderInfo mInfo;
+    // The containing element that holds this icon: workspace, taskbar, folder, etc. Affects certain
+    // aspects of how the icon is drawn.
+    private int mContainer;
 
     // Required for Reorderable -- handles translation and bouncing movements
     private final MultiTranslateDelegate mTranslateDelegate = new MultiTranslateDelegate(this);
@@ -79,7 +82,7 @@
      * Builds an AppPairIcon to be added to the Launcher.
      */
     public static AppPairIcon inflateIcon(int resId, ActivityContext activity,
-            @Nullable ViewGroup group, FolderInfo appPairInfo) {
+            @Nullable ViewGroup group, FolderInfo appPairInfo, int container) {
         DeviceProfile grid = activity.getDeviceProfile();
         LayoutInflater inflater = (group != null)
                 ? LayoutInflater.from(group.getContext())
@@ -87,30 +90,32 @@
         AppPairIcon icon = (AppPairIcon) inflater.inflate(resId, group, false);
 
         // Sort contents, so that left-hand app comes first
-        Collections.sort(appPairInfo.contents, Comparator.comparingInt(a -> a.rank));
+        appPairInfo.contents.sort(Comparator.comparingInt(a -> a.rank));
 
-        icon.setClipToPadding(false);
         icon.setTag(appPairInfo);
         icon.setOnClickListener(activity.getItemOnClickListener());
         icon.mInfo = appPairInfo;
+        icon.mContainer = container;
 
-        if (icon.mInfo.contents.size() != 2) {
-            Log.wtf(TAG, "AppPair contents not 2, size: " + icon.mInfo.contents.size());
-            return icon;
-        }
-
-        icon.checkScreenSize();
+        icon.checkDisabledState();
 
         // Set up icon drawable area
         icon.mIconGraphic = icon.findViewById(R.id.app_pair_icon_graphic);
-        icon.mIconGraphic.init(activity, icon);
+        icon.mIconGraphic.init(icon, container);
 
         // Set up app pair title
         icon.mAppPairName = icon.findViewById(R.id.app_pair_icon_name);
-        icon.mAppPairName.setCompoundDrawablePadding(0);
         FrameLayout.LayoutParams lp =
                 (FrameLayout.LayoutParams) icon.mAppPairName.getLayoutParams();
-        lp.topMargin = grid.iconSizePx + grid.iconDrawablePaddingPx;
+        // Shift the title text down to leave room for the icon graphic. Since the icon graphic is
+        // a separate element (and not set as a CompoundDrawable on the BubbleTextView), we need to
+        // shift the text down manually.
+        lp.topMargin = container == DISPLAY_FOLDER
+                ? grid.folderChildIconSizePx + grid.folderChildDrawablePaddingPx
+                : grid.iconSizePx + grid.iconDrawablePaddingPx;
+        // For some reason, app icons have setIncludeFontPadding(false) inside folders, so we set it
+        // here to match that.
+        icon.mAppPairName.setIncludeFontPadding(container != DISPLAY_FOLDER);
         icon.mAppPairName.setText(appPairInfo.title);
 
         // Set up accessibility
@@ -174,7 +179,11 @@
         return mInfo;
     }
 
-    public View getIconDrawableArea() {
+    public BubbleTextView getTitleTextView() {
+        return mAppPairName;
+    }
+
+    public AppPairIconGraphic getIconDrawableArea() {
         return mIconGraphic;
     }
 
@@ -194,12 +203,14 @@
      * {@link AppPairIconGraphic#dispatchDraw(Canvas)} or clicked on
      * {@link com.android.launcher3.touch.ItemClickHandler#onClickAppPairIcon(View)}
      */
-    public void checkScreenSize() {
+    public void checkDisabledState() {
         DeviceProfile dp = ActivityContext.lookupContext(getContext()).getDeviceProfile();
         // If user is on a small screen, we can't launch if either of the apps is non-resizeable
         mIsLaunchableAtScreenSize =
                 dp.isTablet || getInfo().contents.stream().noneMatch(
                         wii -> wii.hasStatusFlag(WorkspaceItemInfo.FLAG_NON_RESIZEABLE));
+        // Invalidate to update icons
+        mIconGraphic.redraw();
     }
 
     /**
@@ -209,8 +220,26 @@
         // If either of the app pair icons return true on the predicate (i.e. in the list of
         // updated apps), redraw the icon graphic (icon background and both icons).
         if (getInfo().contents.stream().anyMatch(itemCheck)) {
-            checkScreenSize();
-            mIconGraphic.invalidate();
+            checkDisabledState();
         }
     }
+
+    /**
+     * Inside folders, icons are vertically centered in their rows. See
+     * {@link BubbleTextView#onMeasure(int, int)} for comparison.
+     */
+    @Override
+    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+        if (mContainer == DISPLAY_FOLDER) {
+            int height = MeasureSpec.getSize(heightMeasureSpec);
+            ActivityContext activity = ActivityContext.lookupContext(getContext());
+            Paint.FontMetrics fm = mAppPairName.getPaint().getFontMetrics();
+            int cellHeightPx = activity.getDeviceProfile().folderChildIconSizePx
+                    + activity.getDeviceProfile().folderChildDrawablePaddingPx
+                    + (int) Math.ceil(fm.bottom - fm.top);
+            setPadding(getPaddingLeft(), (height - cellHeightPx) / 2, getPaddingRight(),
+                    getPaddingBottom());
+        }
+        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+    }
 }
diff --git a/src/com/android/launcher3/apppairs/AppPairIconBackground.java b/src/com/android/launcher3/apppairs/AppPairIconBackground.java
index b5011f1..8b13789 100644
--- a/src/com/android/launcher3/apppairs/AppPairIconBackground.java
+++ b/src/com/android/launcher3/apppairs/AppPairIconBackground.java
@@ -1,167 +1 @@
-/*
- * Copyright (C) 2023 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.apppairs;
-
-import android.content.Context;
-import android.content.res.TypedArray;
-import android.graphics.Canvas;
-import android.graphics.ColorFilter;
-import android.graphics.Paint;
-import android.graphics.PixelFormat;
-import android.graphics.RectF;
-import android.graphics.drawable.Drawable;
-import android.os.Build;
-
-import com.android.launcher3.R;
-
-/**
- * A Drawable for the background behind the twin app icons (looks like two rectangles).
- */
-class AppPairIconBackground extends Drawable {
-    // The underlying view that we are drawing this background on.
-    private final AppPairIconGraphic icon;
-    private final Paint mBackgroundPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
-
-    /**
-     * Null values to use with
-     * {@link Canvas#drawDoubleRoundRect(RectF, float[], RectF, float[], Paint)}, since there
-     * doesn't seem to be any other API for drawing rectangles with 4 different corner radii.
-     */
-    private static final RectF EMPTY_RECT = new RectF();
-    private static final float[] ARRAY_OF_ZEROES = new float[8];
-
-    AppPairIconBackground(Context context, AppPairIconGraphic iconGraphic) {
-        icon = iconGraphic;
-        // Set up background paint color
-        TypedArray ta = context.getTheme().obtainStyledAttributes(R.styleable.FolderIconPreview);
-        mBackgroundPaint.setStyle(Paint.Style.FILL);
-        mBackgroundPaint.setColor(
-                ta.getColor(R.styleable.FolderIconPreview_folderPreviewColor, 0));
-        ta.recycle();
-    }
-
-    @Override
-    public void draw(Canvas canvas) {
-        if (icon.isLeftRightSplit()) {
-            drawLeftRightSplit(canvas);
-        } else {
-            drawTopBottomSplit(canvas);
-        }
-    }
-
-    /**
-     * When device is in landscape, we draw the rectangles with a left-right split.
-     */
-    private void drawLeftRightSplit(Canvas canvas) {
-        // Get the bounds where we will draw the background image
-        int width = getBounds().width();
-        int height = getBounds().height();
-
-        // The left half of the background image, excluding center channel
-        RectF leftSide = new RectF(
-                0,
-                0,
-                (width / 2f) - (icon.getCenterChannelSize() / 2f),
-                height
-        );
-        // The right half of the background image, excluding center channel
-        RectF rightSide = new RectF(
-                (width / 2f) + (icon.getCenterChannelSize() / 2f),
-                0,
-                width,
-                height
-        );
-
-        drawCustomRoundedRect(canvas, leftSide, new float[]{
-                icon.getBigRadius(), icon.getBigRadius(),
-                icon.getSmallRadius(), icon.getSmallRadius(),
-                icon.getSmallRadius(), icon.getSmallRadius(),
-                icon.getBigRadius(), icon.getBigRadius()});
-        drawCustomRoundedRect(canvas, rightSide, new float[]{
-                icon.getSmallRadius(), icon.getSmallRadius(),
-                icon.getBigRadius(), icon.getBigRadius(),
-                icon.getBigRadius(), icon.getBigRadius(),
-                icon.getSmallRadius(), icon.getSmallRadius()});
-    }
-
-    /**
-     * When device is in portrait, we draw the rectangles with a top-bottom split.
-     */
-    private void drawTopBottomSplit(Canvas canvas) {
-        // Get the bounds where we will draw the background image
-        int width = getBounds().width();
-        int height = getBounds().height();
-
-        // The top half of the background image, excluding center channel
-        RectF topSide = new RectF(
-                0,
-                0,
-                width,
-                (height / 2f) - (icon.getCenterChannelSize() / 2f)
-        );
-        // The bottom half of the background image, excluding center channel
-        RectF bottomSide = new RectF(
-                0,
-                (height / 2f) + (icon.getCenterChannelSize() / 2f),
-                width,
-                height
-        );
-
-        drawCustomRoundedRect(canvas, topSide, new float[]{
-                icon.getBigRadius(), icon.getBigRadius(),
-                icon.getBigRadius(), icon.getBigRadius(),
-                icon.getSmallRadius(), icon.getSmallRadius(),
-                icon.getSmallRadius(), icon.getSmallRadius()});
-        drawCustomRoundedRect(canvas, bottomSide, new float[]{
-                icon.getSmallRadius(), icon.getSmallRadius(),
-                icon.getSmallRadius(), icon.getSmallRadius(),
-                icon.getBigRadius(), icon.getBigRadius(),
-                icon.getBigRadius(), icon.getBigRadius()});
-    }
-
-    /**
-     * Draws a rectangle with custom rounded corners.
-     * @param c The Canvas to draw on.
-     * @param rect The bounds of the rectangle.
-     * @param radii An array of 8 radii for the corners: top left x, top left y, top right x, top
-     *              right y, bottom right x, and so on.
-     */
-    private void drawCustomRoundedRect(Canvas c, RectF rect, float[] radii) {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
-            // Canvas.drawDoubleRoundRect is supported from Q onward
-            c.drawDoubleRoundRect(rect, radii, EMPTY_RECT, ARRAY_OF_ZEROES, mBackgroundPaint);
-        } else {
-            // Fallback rectangle with uniform rounded corners
-            c.drawRoundRect(rect, icon.getBigRadius(), icon.getBigRadius(), mBackgroundPaint);
-        }
-    }
-
-    @Override
-    public int getOpacity() {
-        return PixelFormat.OPAQUE;
-    }
-
-    @Override
-    public void setAlpha(int i) {
-        mBackgroundPaint.setAlpha(i);
-    }
-
-    @Override
-    public void setColorFilter(ColorFilter colorFilter) {
-        // Required by Drawable but not used.
-    }
-}
diff --git a/src/com/android/launcher3/apppairs/AppPairIconDrawable.java b/src/com/android/launcher3/apppairs/AppPairIconDrawable.java
new file mode 100644
index 0000000..c0ac11a
--- /dev/null
+++ b/src/com/android/launcher3/apppairs/AppPairIconDrawable.java
@@ -0,0 +1,208 @@
+/*
+ * Copyright (C) 2023 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.apppairs;
+
+import android.graphics.Canvas;
+import android.graphics.ColorFilter;
+import android.graphics.Paint;
+import android.graphics.PixelFormat;
+import android.graphics.RectF;
+import android.graphics.drawable.Drawable;
+import android.os.Build;
+
+import androidx.annotation.NonNull;
+
+import com.android.launcher3.icons.FastBitmapDrawable;
+
+/**
+ * A composed Drawable consisting of the two app pair icons and the background behind them (looks
+ * like two rectangles).
+ */
+class AppPairIconDrawable extends Drawable {
+    private final Paint mBackgroundPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
+    private final AppPairIconDrawingParams mP;
+    private final FastBitmapDrawable mIcon1;
+    private final FastBitmapDrawable mIcon2;
+
+    /**
+     * Null values to use with
+     * {@link Canvas#drawDoubleRoundRect(RectF, float[], RectF, float[], Paint)}, since there
+     * doesn't seem to be any other API for drawing rectangles with 4 different corner radii.
+     */
+    private static final RectF EMPTY_RECT = new RectF();
+    private static final float[] ARRAY_OF_ZEROES = new float[8];
+
+    AppPairIconDrawable(
+            AppPairIconDrawingParams p, FastBitmapDrawable icon1, FastBitmapDrawable icon2) {
+        mP = p;
+        mBackgroundPaint.setStyle(Paint.Style.FILL);
+        mBackgroundPaint.setColor(p.getBgColor());
+        mIcon1 = icon1;
+        mIcon2 = icon2;
+    }
+
+    @Override
+    public void draw(@NonNull Canvas canvas) {
+        if (mP.isLeftRightSplit()) {
+            drawLeftRightSplit(canvas);
+        } else {
+            drawTopBottomSplit(canvas);
+        }
+
+        canvas.translate(
+                mP.getStandardIconPadding() + mP.getOuterPadding(),
+                mP.getStandardIconPadding() + mP.getOuterPadding()
+        );
+
+        // Draw first icon.
+        canvas.save();
+        // The app icons are placed differently depending on device orientation.
+        if (mP.isLeftRightSplit()) {
+            canvas.translate(
+                    mP.getInnerPadding(),
+                    mP.getBackgroundSize() / 2f - mP.getMemberIconSize() / 2f
+            );
+        } else {
+            canvas.translate(
+                    mP.getBackgroundSize() / 2f - mP.getMemberIconSize() / 2f,
+                    mP.getInnerPadding()
+            );
+        }
+
+        mIcon1.draw(canvas);
+        canvas.restore();
+
+        // Draw second icon.
+        canvas.save();
+        // The app icons are placed differently depending on device orientation.
+        if (mP.isLeftRightSplit()) {
+            canvas.translate(
+                    mP.getBackgroundSize() - (mP.getInnerPadding() + mP.getMemberIconSize()),
+                    mP.getBackgroundSize() / 2f - mP.getMemberIconSize() / 2f
+            );
+        } else {
+            canvas.translate(
+                    mP.getBackgroundSize() / 2f - mP.getMemberIconSize() / 2f,
+                    mP.getBackgroundSize() - (mP.getInnerPadding() + mP.getMemberIconSize())
+            );
+        }
+
+        mIcon2.draw(canvas);
+    }
+
+    /**
+     * When device is in landscape, we draw the rectangles with a left-right split.
+     */
+    private void drawLeftRightSplit(Canvas canvas) {
+        // Get the bounds where we will draw the background image
+        int width = mP.getIconSize();
+        int height = mP.getIconSize();
+
+        // The left half of the background image, excluding center channel
+        RectF leftSide = new RectF(
+                mP.getStandardIconPadding() + mP.getOuterPadding(),
+                mP.getStandardIconPadding() + mP.getOuterPadding(),
+                (width / 2f) - (mP.getCenterChannelSize() / 2f),
+                height - (mP.getStandardIconPadding() + mP.getOuterPadding())
+        );
+        // The right half of the background image, excluding center channel
+        RectF rightSide = new RectF(
+                (width / 2f) + (mP.getCenterChannelSize() / 2f),
+                (mP.getStandardIconPadding() + mP.getOuterPadding()),
+                width - (mP.getStandardIconPadding() + mP.getOuterPadding()),
+                height - (mP.getStandardIconPadding() + mP.getOuterPadding())
+        );
+
+        drawCustomRoundedRect(canvas, leftSide, new float[]{
+                mP.getBigRadius(), mP.getBigRadius(),
+                mP.getSmallRadius(), mP.getSmallRadius(),
+                mP.getSmallRadius(), mP.getSmallRadius(),
+                mP.getBigRadius(), mP.getBigRadius()});
+        drawCustomRoundedRect(canvas, rightSide, new float[]{
+                mP.getSmallRadius(), mP.getSmallRadius(),
+                mP.getBigRadius(), mP.getBigRadius(),
+                mP.getBigRadius(), mP.getBigRadius(),
+                mP.getSmallRadius(), mP.getSmallRadius()});
+    }
+
+    /**
+     * When device is in portrait, we draw the rectangles with a top-bottom split.
+     */
+    private void drawTopBottomSplit(Canvas canvas) {
+        // Get the bounds where we will draw the background image
+        int width = mP.getIconSize();
+        int height = mP.getIconSize();
+
+        // The top half of the background image, excluding center channel
+        RectF topSide = new RectF(
+                (mP.getStandardIconPadding() + mP.getOuterPadding()),
+                (mP.getStandardIconPadding() + mP.getOuterPadding()),
+                width - (mP.getStandardIconPadding() + mP.getOuterPadding()),
+                (height / 2f) - (mP.getCenterChannelSize() / 2f)
+        );
+        // The bottom half of the background image, excluding center channel
+        RectF bottomSide = new RectF(
+                (mP.getStandardIconPadding() + mP.getOuterPadding()),
+                (height / 2f) + (mP.getCenterChannelSize() / 2f),
+                width - (mP.getStandardIconPadding() + mP.getOuterPadding()),
+                height - (mP.getStandardIconPadding() + mP.getOuterPadding())
+        );
+
+        drawCustomRoundedRect(canvas, topSide, new float[]{
+                mP.getBigRadius(), mP.getBigRadius(),
+                mP.getBigRadius(), mP.getBigRadius(),
+                mP.getSmallRadius(), mP.getSmallRadius(),
+                mP.getSmallRadius(), mP.getSmallRadius()});
+        drawCustomRoundedRect(canvas, bottomSide, new float[]{
+                mP.getSmallRadius(), mP.getSmallRadius(),
+                mP.getSmallRadius(), mP.getSmallRadius(),
+                mP.getBigRadius(), mP.getBigRadius(),
+                mP.getBigRadius(), mP.getBigRadius()});
+    }
+
+    /**
+     * Draws a rectangle with custom rounded corners.
+     * @param c The Canvas to draw on.
+     * @param rect The bounds of the rectangle.
+     * @param radii An array of 8 radii for the corners: top left x, top left y, top right x, top
+     *              right y, bottom right x, and so on.
+     */
+    private void drawCustomRoundedRect(Canvas c, RectF rect, float[] radii) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
+            // Canvas.drawDoubleRoundRect is supported from Q onward
+            c.drawDoubleRoundRect(rect, radii, EMPTY_RECT, ARRAY_OF_ZEROES, mBackgroundPaint);
+        } else {
+            // Fallback rectangle with uniform rounded corners
+            c.drawRoundRect(rect, mP.getBigRadius(), mP.getBigRadius(), mBackgroundPaint);
+        }
+    }
+
+    @Override
+    public int getOpacity() {
+        return PixelFormat.OPAQUE;
+    }
+
+    @Override
+    public void setAlpha(int i) {
+        mBackgroundPaint.setAlpha(i);
+    }
+
+    @Override
+    public void setColorFilter(ColorFilter colorFilter) {
+        mBackgroundPaint.setColorFilter(colorFilter);
+    }
+}
diff --git a/src/com/android/launcher3/apppairs/AppPairIconDrawingParams.kt b/src/com/android/launcher3/apppairs/AppPairIconDrawingParams.kt
new file mode 100644
index 0000000..62e5771
--- /dev/null
+++ b/src/com/android/launcher3/apppairs/AppPairIconDrawingParams.kt
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2024 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.apppairs
+
+import android.content.Context
+import com.android.launcher3.BubbleTextView.DISPLAY_FOLDER
+import com.android.launcher3.DeviceProfile
+import com.android.launcher3.R
+import com.android.launcher3.views.ActivityContext
+
+class AppPairIconDrawingParams(val context: Context, container: Int) {
+    companion object {
+        // Design specs -- the below ratios are in relation to the size of a standard app icon.
+        // Note: The standard app icon has two sizes. One is the full size of the drawable (returned
+        // by dp.iconSizePx), and one is the visual size of the icon on-screen (11/12 of that).
+        // Hence the calculations below.
+        const val STANDARD_ICON_PADDING = 1 / 24f
+        const val STANDARD_ICON_SHRINK = 1 - STANDARD_ICON_PADDING * 2
+        // App pairs are slightly smaller than the *visual* size of a standard icon, so all ratios
+        // are calculated with that in mind.
+        const val OUTER_PADDING_SCALE = 1 / 30f * STANDARD_ICON_SHRINK
+        const val INNER_PADDING_SCALE = 1 / 24f * STANDARD_ICON_SHRINK
+        const val CENTER_CHANNEL_SCALE = 1 / 30f * STANDARD_ICON_SHRINK
+        const val BIG_RADIUS_SCALE = 1 / 5f * STANDARD_ICON_SHRINK
+        const val SMALL_RADIUS_SCALE = 1 / 15f * STANDARD_ICON_SHRINK
+        const val MEMBER_ICON_SCALE = 11 / 30f * STANDARD_ICON_SHRINK
+    }
+
+    // The size at which this graphic will be drawn.
+    val iconSize: Int
+    // Standard app icons are padded by this amount on each side.
+    val standardIconPadding: Float
+    // App pair icons are slightly smaller than regular icons, so we pad the icon by this much on
+    // each side.
+    val outerPadding: Float
+    // The colored background (two rectangles in a square area) is this big.
+    val backgroundSize: Float
+    // The size of the channel between the two halves of the app pair icon.
+    val centerChannelSize: Float
+    // The corner radius of the outside corners.
+    val bigRadius: Float
+    // The corner radius of the inside corners, touching the center channel.
+    val smallRadius: Float
+    // Inside of the icon, the two member apps are padded by this much.
+    val innerPadding: Float
+    // The two member apps have icons that are this big (in diameter).
+    val memberIconSize: Float
+    // The app pair icon appears differently in portrait and landscape.
+    var isLeftRightSplit: Boolean = true
+    // The background paint color (based on container).
+    val bgColor: Int
+
+    init {
+        val activity: ActivityContext = ActivityContext.lookupContext(context)
+        val dp = activity.deviceProfile
+        iconSize = if (container == DISPLAY_FOLDER) dp.folderChildIconSizePx else dp.iconSizePx
+        standardIconPadding = iconSize * STANDARD_ICON_PADDING
+        outerPadding = iconSize * OUTER_PADDING_SCALE
+        backgroundSize = iconSize * STANDARD_ICON_SHRINK - (outerPadding * 2)
+        centerChannelSize = iconSize * CENTER_CHANNEL_SCALE
+        bigRadius = iconSize * BIG_RADIUS_SCALE
+        smallRadius = iconSize * SMALL_RADIUS_SCALE
+        innerPadding = iconSize * INNER_PADDING_SCALE
+        memberIconSize = iconSize * MEMBER_ICON_SCALE
+        updateOrientation(dp)
+        if (container == DISPLAY_FOLDER) {
+            val ta =
+                context.theme.obtainStyledAttributes(
+                    intArrayOf(R.attr.materialColorSurfaceContainerLowest)
+                )
+            bgColor = ta.getColor(0, 0)
+            ta.recycle()
+        } else {
+            val ta = context.theme.obtainStyledAttributes(R.styleable.FolderIconPreview)
+            bgColor = ta.getColor(R.styleable.FolderIconPreview_folderPreviewColor, 0)
+            ta.recycle()
+        }
+    }
+
+    /** Checks the device orientation and updates isLeftRightSplit accordingly. */
+    fun updateOrientation(dp: DeviceProfile) {
+        isLeftRightSplit = dp.isLeftRightSplit
+    }
+}
diff --git a/src/com/android/launcher3/apppairs/AppPairIconGraphic.kt b/src/com/android/launcher3/apppairs/AppPairIconGraphic.kt
index a4ac4c8..04050b0 100644
--- a/src/com/android/launcher3/apppairs/AppPairIconGraphic.kt
+++ b/src/com/android/launcher3/apppairs/AppPairIconGraphic.kt
@@ -21,13 +21,13 @@
 import android.graphics.Rect
 import android.graphics.drawable.Drawable
 import android.util.AttributeSet
-import android.util.Log
 import android.view.Gravity
 import android.widget.FrameLayout
 import com.android.launcher3.DeviceProfile
 import com.android.launcher3.DeviceProfile.OnDeviceProfileChangeListener
 import com.android.launcher3.icons.BitmapInfo
-import com.android.launcher3.icons.PlaceHolderIconDrawable
+import com.android.launcher3.icons.FastBitmapDrawable.getDisabledColorFilter
+import com.android.launcher3.model.data.FolderInfo
 import com.android.launcher3.model.data.WorkspaceItemInfo
 import com.android.launcher3.util.Themes
 import com.android.launcher3.views.ActivityContext
@@ -41,168 +41,101 @@
     private val TAG = "AppPairIconGraphic"
 
     companion object {
-        // Design specs -- the below ratios are in relation to the size of a standard app icon.
-        private const val OUTER_PADDING_SCALE = 1 / 30f
-        private const val INNER_PADDING_SCALE = 1 / 24f
-        private const val MEMBER_ICON_SCALE = 11 / 30f
-        private const val CENTER_CHANNEL_SCALE = 1 / 30f
-        private const val BIG_RADIUS_SCALE = 1 / 5f
-        private const val SMALL_RADIUS_SCALE = 1 / 15f
-        // Disabled alpha is 38%, or 97/255
-        private const val DISABLED_ALPHA = 97
-        private const val ENABLED_ALPHA = 255
+        /** Composes a drawable for this icon, consisting of a background and 2 app icons. */
+        @JvmStatic
+        fun composeDrawable(appPairInfo: FolderInfo, p: AppPairIconDrawingParams): Drawable {
+            // Generate new icons, using themed flag if needed.
+            val flags = if (Themes.isThemedIconEnabled(p.context)) BitmapInfo.FLAG_THEMED else 0
+            val appIcon1 = appPairInfo.contents[0].newIcon(p.context, flags)
+            val appIcon2 = appPairInfo.contents[1].newIcon(p.context, flags)
+            appIcon1.setBounds(0, 0, p.memberIconSize.toInt(), p.memberIconSize.toInt())
+            appIcon2.setBounds(0, 0, p.memberIconSize.toInt(), p.memberIconSize.toInt())
+
+            // Check disabled status.
+            val activity: ActivityContext = ActivityContext.lookupContext(p.context)
+            val isLaunchableAtScreenSize =
+                activity.deviceProfile.isTablet ||
+                    appPairInfo.contents.stream().noneMatch { wii: WorkspaceItemInfo ->
+                        wii.hasStatusFlag(WorkspaceItemInfo.FLAG_NON_RESIZEABLE)
+                    }
+            val shouldDrawAsDisabled = appPairInfo.isDisabled || !isLaunchableAtScreenSize
+
+            // Set disabled status on icons.
+            appIcon1.setIsDisabled(shouldDrawAsDisabled)
+            appIcon2.setIsDisabled(shouldDrawAsDisabled)
+
+            // Create icon drawable.
+            val fullIconDrawable = AppPairIconDrawable(p, appIcon1, appIcon2)
+            fullIconDrawable.setBounds(0, 0, p.iconSize, p.iconSize)
+
+            // Set disabled color filter on background paint.
+            fullIconDrawable.colorFilter =
+                if (shouldDrawAsDisabled) getDisabledColorFilter() else null
+
+            return fullIconDrawable
+        }
     }
 
-    // App pair icons are slightly smaller than regular icons, so we pad the icon by this much on
-    // each side.
-    private var outerPadding = 0f
-    // Inside of the icon, the two member apps are padded by this much.
-    private var innerPadding = 0f
-    // The colored background (two rectangles in a square area) is this big.
-    private var backgroundSize = 0f
-    // The two member apps have icons that are this big (in diameter).
-    private var memberIconSize = 0f
-    // The size of the center channel.
-    var centerChannelSize = 0f
-    // The large outer radius of the background rectangles.
-    var bigRadius = 0f
-    // The small inner radius of the background rectangles.
-    var smallRadius = 0f
-    // The app pairs icon appears differently in portrait and landscape.
-    var isLeftRightSplit = false
-
-    private lateinit var activityContext: ActivityContext
     private lateinit var parentIcon: AppPairIcon
-    private lateinit var appPairBackground: Drawable
-    private var appIcon1: Drawable? = null
-    private var appIcon2: Drawable? = null
+    private lateinit var drawParams: AppPairIconDrawingParams
+    private lateinit var drawable: Drawable
 
-    fun init(activity: ActivityContext, icon: AppPairIcon) {
-        activityContext = activity
-
-        // Calculate device-specific measurements
-        val defaultIconSize = activity.deviceProfile.iconSizePx
-        outerPadding = OUTER_PADDING_SCALE * defaultIconSize
-        innerPadding = INNER_PADDING_SCALE * defaultIconSize
-        backgroundSize = defaultIconSize - outerPadding * 2
-        memberIconSize = MEMBER_ICON_SCALE * defaultIconSize
-        centerChannelSize = CENTER_CHANNEL_SCALE * defaultIconSize
-        bigRadius = BIG_RADIUS_SCALE * defaultIconSize
-        smallRadius = SMALL_RADIUS_SCALE * defaultIconSize
+    fun init(icon: AppPairIcon, container: Int) {
         parentIcon = icon
-        updateOrientation()
-
-        appPairBackground = AppPairIconBackground(context, this)
-        appPairBackground.setBounds(0, 0, backgroundSize.toInt(), backgroundSize.toInt())
-        applyIcons(parentIcon.info.contents)
+        drawParams = AppPairIconDrawingParams(context, container)
+        drawable = composeDrawable(icon.info, drawParams)
 
         // Center the drawable area in the larger icon canvas
         val lp: LayoutParams = layoutParams as LayoutParams
         lp.gravity = Gravity.CENTER_HORIZONTAL
-        lp.topMargin = outerPadding.toInt()
-        lp.height = backgroundSize.toInt()
-        lp.width = backgroundSize.toInt()
+        lp.height = drawParams.iconSize
+        lp.width = drawParams.iconSize
         layoutParams = lp
     }
 
     override fun onAttachedToWindow() {
         super.onAttachedToWindow()
-        activityContext.addOnDeviceProfileChangeListener(this)
+        getActivityContext().addOnDeviceProfileChangeListener(this)
     }
 
     override fun onDetachedFromWindow() {
         super.onDetachedFromWindow()
-        activityContext.removeOnDeviceProfileChangeListener(this)
+        getActivityContext().removeOnDeviceProfileChangeListener(this)
     }
 
-    /** Checks the device orientation and updates isLeftRightSplit accordingly. */
-    private fun updateOrientation() {
-        val activity: ActivityContext = ActivityContext.lookupContext(context)
-        isLeftRightSplit = activity.deviceProfile.isLeftRightSplit
+    private fun getActivityContext(): ActivityContext {
+        return ActivityContext.lookupContext(context)
     }
 
     /** When device profile changes, update orientation */
-    override fun onDeviceProfileChanged(dp: DeviceProfile?) {
-        updateOrientation()
+    override fun onDeviceProfileChanged(dp: DeviceProfile) {
+        drawParams.updateOrientation(dp)
+        redraw()
+    }
+
+    /** Updates the icon drawable and redraws it */
+    fun redraw() {
+        drawable = composeDrawable(parentIcon.info, drawParams)
         invalidate()
     }
 
-    /** Sets up app pair member icons for drawing. */
-    private fun applyIcons(contents: ArrayList<WorkspaceItemInfo>) {
-        // App pair should always contain 2 members; if not 2, return to avoid a crash loop
-        if (contents.size != 2) {
-            Log.wtf(TAG, "AppPair contents not 2, size: " + contents.size, Throwable())
-            return
-        }
-
-        // Generate new icons, using themed flag if needed
-        val flags = if (Themes.isThemedIconEnabled(context)) BitmapInfo.FLAG_THEMED else 0
-        val newIcon1 = parentIcon.info.contents[0].newIcon(context, flags)
-        val newIcon2 = parentIcon.info.contents[1].newIcon(context, flags)
-
-        // If app icons did not draw fully last time, animate to full icon
-        (appIcon1 as? PlaceHolderIconDrawable)?.animateIconUpdate(newIcon1)
-        (appIcon2 as? PlaceHolderIconDrawable)?.animateIconUpdate(newIcon2)
-
-        appIcon1 = newIcon1
-        appIcon2 = newIcon2
-        appIcon1?.setBounds(0, 0, memberIconSize.toInt(), memberIconSize.toInt())
-        appIcon2?.setBounds(0, 0, memberIconSize.toInt(), memberIconSize.toInt())
-    }
-
-    /** Gets this icon graphic's bounds, with respect to the parent icon's coordinate system. */
+    /**
+     * Gets this icon graphic's visual bounds, with respect to the parent icon's coordinate system.
+     */
     fun getIconBounds(outBounds: Rect) {
-        outBounds.set(0, 0, backgroundSize.toInt(), backgroundSize.toInt())
+        outBounds.set(0, 0, drawParams.backgroundSize.toInt(), drawParams.backgroundSize.toInt())
+
         outBounds.offset(
             // x-coordinate in parent's coordinate system
-            ((parentIcon.width - backgroundSize) / 2).toInt(),
+            ((parentIcon.width - drawParams.backgroundSize) / 2).toInt(),
             // y-coordinate in parent's coordinate system
-            parentIcon.paddingTop + outerPadding.toInt()
+            (parentIcon.paddingTop + drawParams.standardIconPadding + drawParams.outerPadding)
+                .toInt()
         )
     }
 
     override fun dispatchDraw(canvas: Canvas) {
         super.dispatchDraw(canvas)
-
-        val drawAlpha =
-            if (!parentIcon.isLaunchableAtScreenSize || parentIcon.info.isDisabled) DISABLED_ALPHA
-            else ENABLED_ALPHA
-
-        // Draw background
-        appPairBackground.alpha = drawAlpha
-        appPairBackground.draw(canvas)
-
-        // Make sure icons are loaded and fresh
-        applyIcons(parentIcon.info.contents)
-
-        // Draw first icon
-        canvas.save()
-        // The app icons are placed differently depending on device orientation.
-        if (isLeftRightSplit) {
-            canvas.translate(innerPadding, height / 2f - memberIconSize / 2f)
-        } else {
-            canvas.translate(width / 2f - memberIconSize / 2f, innerPadding)
-        }
-        appIcon1?.alpha = drawAlpha
-        appIcon1?.draw(canvas)
-        canvas.restore()
-
-        // Draw second icon
-        canvas.save()
-        // The app icons are placed differently depending on device orientation.
-        if (isLeftRightSplit) {
-            canvas.translate(
-                width - (innerPadding + memberIconSize),
-                height / 2f - memberIconSize / 2f
-            )
-        } else {
-            canvas.translate(
-                width / 2f - memberIconSize / 2f,
-                height - (innerPadding + memberIconSize)
-            )
-        }
-        appIcon2?.alpha = drawAlpha
-        appIcon2?.draw(canvas)
-        canvas.restore()
+        drawable.draw(canvas)
     }
 }
diff --git a/src/com/android/launcher3/graphics/LauncherPreviewRenderer.java b/src/com/android/launcher3/graphics/LauncherPreviewRenderer.java
index e0a6627..1a57d91 100644
--- a/src/com/android/launcher3/graphics/LauncherPreviewRenderer.java
+++ b/src/com/android/launcher3/graphics/LauncherPreviewRenderer.java
@@ -20,6 +20,8 @@
 import static android.view.View.MeasureSpec.makeMeasureSpec;
 import static android.view.View.VISIBLE;
 
+import static com.android.launcher3.BubbleTextView.DISPLAY_TASKBAR;
+import static com.android.launcher3.BubbleTextView.DISPLAY_WORKSPACE;
 import static com.android.launcher3.DeviceProfile.DEFAULT_SCALE;
 import static com.android.launcher3.LauncherSettings.Favorites.CONTAINER_HOTSEAT_PREDICTION;
 import static com.android.launcher3.config.FeatureFlags.shouldShowFirstPageWidget;
@@ -388,12 +390,14 @@
     }
 
     private void inflateAndAddCollectionIcon(FolderInfo info) {
-        CellLayout screen = info.container == Favorites.CONTAINER_DESKTOP
+        boolean isOnDesktop = info.container == Favorites.CONTAINER_DESKTOP;
+        CellLayout screen = isOnDesktop
                 ? mWorkspaceScreens.get(info.screenId)
                 : mHotseat;
         FrameLayout folderIcon = info.itemType == Favorites.ITEM_TYPE_FOLDER
                 ? FolderIcon.inflateIcon(R.layout.folder_icon, this, screen, info)
-                : AppPairIcon.inflateIcon(R.layout.app_pair_icon, this, screen, info);
+                : AppPairIcon.inflateIcon(R.layout.app_pair_icon, this, screen, info,
+                        isOnDesktop ? DISPLAY_WORKSPACE : DISPLAY_TASKBAR);
         addInScreenFromBind(folderIcon, info);
     }
 
diff --git a/src/com/android/launcher3/util/ItemInflater.kt b/src/com/android/launcher3/util/ItemInflater.kt
index cc66af1..0f8311d 100644
--- a/src/com/android/launcher3/util/ItemInflater.kt
+++ b/src/com/android/launcher3/util/ItemInflater.kt
@@ -81,7 +81,8 @@
                     R.layout.app_pair_icon,
                     context,
                     parent,
-                    item as FolderInfo
+                    item as FolderInfo,
+                    BubbleTextView.DISPLAY_WORKSPACE
                 )
             Favorites.ITEM_TYPE_APPWIDGET,
             Favorites.ITEM_TYPE_CUSTOM_APPWIDGET ->