diff --git a/res/layout/widgets_list_row_header_two_pane.xml b/res/layout/widgets_list_row_header_two_pane.xml
index c0a6ea8..bdb2aed 100644
--- a/res/layout/widgets_list_row_header_two_pane.xml
+++ b/res/layout/widgets_list_row_header_two_pane.xml
@@ -23,6 +23,7 @@
     android:importantForAccessibility="yes"
     android:focusable="true"
     launcher:appIconSize="48dp"
+    launcher:collapsable="false"
     android:descendantFocusability="afterDescendants"
     android:background="@drawable/bg_widgets_header_two_pane" >
 
diff --git a/res/values/attrs.xml b/res/values/attrs.xml
index 754f0cb..4a0b5e8 100644
--- a/res/values/attrs.xml
+++ b/res/values/attrs.xml
@@ -582,6 +582,7 @@
 
     <declare-styleable name="WidgetsListRowHeader">
         <attr name="appIconSize" format="dimension" />
+        <attr name="collapsable" format="boolean" />
     </declare-styleable>
 
     <attr name="materialColorOnSecondaryFixedVariant" format="color" />
diff --git a/src/com/android/launcher3/widget/picker/WidgetsListHeader.java b/src/com/android/launcher3/widget/picker/WidgetsListHeader.java
index b5e7401..3383299 100644
--- a/src/com/android/launcher3/widget/picker/WidgetsListHeader.java
+++ b/src/com/android/launcher3/widget/picker/WidgetsListHeader.java
@@ -52,7 +52,11 @@
     private static final int[] EXPANDED_DRAWABLE_STATE = new int[] {android.R.attr.state_expanded};
 
     private final int mIconSize;
-
+    /**
+     * Indicates if the header is collapsable. For example, when displayed in a two pane layout,
+     * widget apps aren't collapsable.
+    */
+    private final boolean mIsCollapsable;
     @Nullable private HandlerRunnable mIconLoadRequest;
     @Nullable private Drawable mIconDrawable;
     @Nullable private WidgetsListDrawableState mListDrawableState;
@@ -79,6 +83,7 @@
                 R.styleable.WidgetsListRowHeader, defStyleAttr, /* defStyleRes= */ 0);
         mIconSize = a.getDimensionPixelSize(R.styleable.WidgetsListRowHeader_appIconSize,
                 grid.iconSizePx);
+        mIsCollapsable = a.getBoolean(R.styleable.WidgetsListRowHeader_collapsable, true);
     }
 
     @Override
@@ -87,32 +92,36 @@
         mAppIcon = findViewById(R.id.app_icon);
         mTitle = findViewById(R.id.app_title);
         mSubtitle = findViewById(R.id.app_subtitle);
-        setAccessibilityDelegate(new AccessibilityDelegate() {
+        // Lists that cannot collapse, don't need EXPAND or COLLAPSE accessibility actions.
+        if (mIsCollapsable) {
+            setAccessibilityDelegate(new AccessibilityDelegate() {
 
-            @Override
-            public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) {
-                if (mIsExpanded) {
-                    info.removeAction(AccessibilityNodeInfo.ACTION_EXPAND);
-                    info.addAction(AccessibilityNodeInfo.ACTION_COLLAPSE);
-                } else {
-                    info.removeAction(AccessibilityNodeInfo.ACTION_COLLAPSE);
-                    info.addAction(AccessibilityNodeInfo.ACTION_EXPAND);
+                @Override
+                public void onInitializeAccessibilityNodeInfo(View host,
+                        AccessibilityNodeInfo info) {
+                    if (mIsExpanded) {
+                        info.removeAction(AccessibilityNodeInfo.ACTION_EXPAND);
+                        info.addAction(AccessibilityNodeInfo.ACTION_COLLAPSE);
+                    } else {
+                        info.removeAction(AccessibilityNodeInfo.ACTION_COLLAPSE);
+                        info.addAction(AccessibilityNodeInfo.ACTION_EXPAND);
+                    }
+                    super.onInitializeAccessibilityNodeInfo(host, info);
                 }
-                super.onInitializeAccessibilityNodeInfo(host, info);
-            }
 
-            @Override
-            public boolean performAccessibilityAction(View host, int action, Bundle args) {
-                switch (action) {
-                    case AccessibilityNodeInfo.ACTION_EXPAND:
-                    case AccessibilityNodeInfo.ACTION_COLLAPSE:
-                        callOnClick();
-                        return true;
-                    default:
-                        return super.performAccessibilityAction(host, action, args);
+                @Override
+                public boolean performAccessibilityAction(View host, int action, Bundle args) {
+                    switch (action) {
+                        case AccessibilityNodeInfo.ACTION_EXPAND:
+                        case AccessibilityNodeInfo.ACTION_COLLAPSE:
+                            callOnClick();
+                            return true;
+                        default:
+                            return super.performAccessibilityAction(host, action, args);
+                    }
                 }
-            }
-        });
+            });
+        }
     }
 
     /** Sets the expand toggle to expand / collapse. */
diff --git a/tests/src/com/android/launcher3/widget/picker/WidgetsListHeaderAccessibilityTest.java b/tests/src/com/android/launcher3/widget/picker/WidgetsListHeaderAccessibilityTest.java
new file mode 100644
index 0000000..b347f07
--- /dev/null
+++ b/tests/src/com/android/launcher3/widget/picker/WidgetsListHeaderAccessibilityTest.java
@@ -0,0 +1,87 @@
+/*
+ * 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.widget.picker;
+
+import static androidx.test.core.app.ApplicationProvider.getApplicationContext;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+
+import android.content.Context;
+import android.view.ContextThemeWrapper;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.accessibility.AccessibilityNodeInfo;
+import android.widget.FrameLayout;
+
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+import androidx.test.filters.SmallTest;
+
+import com.android.launcher3.R;
+import com.android.launcher3.util.ActivityContextWrapper;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+
+@SmallTest
+@RunWith(AndroidJUnit4.class)
+public class WidgetsListHeaderAccessibilityTest {
+    private Context mContext;
+    private LayoutInflater mLayoutInflater;
+    @Mock
+    private View.OnClickListener mOnClickListener;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+
+        mContext = new ActivityContextWrapper(getApplicationContext());
+        mLayoutInflater = LayoutInflater.from(
+                new ContextThemeWrapper(mContext, R.style.WidgetContainerTheme));
+    }
+
+    @Test
+    public void singlePaneCollapsable_hasCustomAccessibilityActions() {
+        WidgetsListHeader header = (WidgetsListHeader) mLayoutInflater.inflate(
+                R.layout.widgets_list_row_header,
+                new FrameLayout(mContext), false);
+
+        assertThat(header.getAccessibilityDelegate()).isNotNull();
+
+        header.setOnClickListener(mOnClickListener);
+        header.getAccessibilityDelegate().performAccessibilityAction(header,
+                AccessibilityNodeInfo.ACTION_EXPAND, null);
+        header.getAccessibilityDelegate().performAccessibilityAction(header,
+                AccessibilityNodeInfo.ACTION_COLLAPSE, null);
+
+        verify(mOnClickListener, times(2)).onClick(header);
+    }
+
+    @Test
+    public void twoPaneNonCollapsable_noCustomAccessibilityDelegate() {
+        WidgetsListHeader header = (WidgetsListHeader) mLayoutInflater.inflate(
+                R.layout.widgets_list_row_header_two_pane,
+                new FrameLayout(mContext), false);
+
+        assertThat(header.getAccessibilityDelegate()).isNull();
+    }
+}