diff --git a/packages/SystemUI/src/com/android/systemui/shade/NotificationShadeWindowControllerImpl.java b/packages/SystemUI/src/com/android/systemui/shade/NotificationShadeWindowControllerImpl.java
index 24dba59..4d77e3e 100644
--- a/packages/SystemUI/src/com/android/systemui/shade/NotificationShadeWindowControllerImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/shade/NotificationShadeWindowControllerImpl.java
@@ -17,8 +17,6 @@
 package com.android.systemui.shade;
 
 import static android.view.WindowInsetsController.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE;
-import static android.view.WindowManager.LayoutParams.LAYOUT_IN_DISPLAY_CUTOUT_MODE_ALWAYS;
-import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_OPTIMIZE_MEASURE;
 
 import static com.android.systemui.statusbar.NotificationRemoteInputManager.ENABLE_REMOTE_INPUT;
 import static com.android.systemui.util.kotlin.JavaAdapterKt.collectFlow;
@@ -27,16 +25,13 @@
 import android.content.Context;
 import android.content.pm.ActivityInfo;
 import android.content.res.Configuration;
-import android.graphics.PixelFormat;
 import android.graphics.Rect;
 import android.graphics.Region;
-import android.os.Binder;
 import android.os.Build;
 import android.os.RemoteException;
 import android.os.Trace;
 import android.util.Log;
 import android.view.Display;
-import android.view.Gravity;
 import android.view.IWindow;
 import android.view.IWindowSession;
 import android.view.View;
@@ -271,33 +266,7 @@
         // Now that the notification shade encompasses the sliding panel and its
         // translucent backdrop, the entire thing is made TRANSLUCENT and is
         // hardware-accelerated.
-        mLp = new LayoutParams(
-                ViewGroup.LayoutParams.MATCH_PARENT,
-                ViewGroup.LayoutParams.MATCH_PARENT,
-                LayoutParams.TYPE_NOTIFICATION_SHADE,
-                LayoutParams.FLAG_NOT_FOCUSABLE
-                        | LayoutParams.FLAG_TOUCHABLE_WHEN_WAKING
-                        | LayoutParams.FLAG_SPLIT_TOUCH
-                        | LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH
-                        | LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS,
-                PixelFormat.TRANSLUCENT);
-        mLp.token = new Binder();
-        mLp.gravity = Gravity.TOP;
-        mLp.setFitInsetsTypes(0 /* types */);
-        mLp.setTitle("NotificationShade");
-        mLp.packageName = mContext.getPackageName();
-        mLp.layoutInDisplayCutoutMode = LAYOUT_IN_DISPLAY_CUTOUT_MODE_ALWAYS;
-        mLp.privateFlags |= PRIVATE_FLAG_OPTIMIZE_MEASURE;
-
-        if (SceneContainerFlag.isEnabled()) {
-            // This prevents the appearance and disappearance of the software keyboard (also known
-            // as the "IME") from scrolling/panning the window to make room for the keyboard.
-            //
-            // The scene container logic does its own adjustment and animation when the IME appears
-            // or disappears.
-            mLp.softInputMode = LayoutParams.SOFT_INPUT_ADJUST_NOTHING;
-        }
-
+        mLp = ShadeWindowLayoutParams.INSTANCE.create(mContext);
         mWindowManager.addView(mWindowRootView, mLp);
 
         // We use BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE here, however, there is special logic in
diff --git a/packages/SystemUI/src/com/android/systemui/shade/ShadeWindowLayoutParams.kt b/packages/SystemUI/src/com/android/systemui/shade/ShadeWindowLayoutParams.kt
new file mode 100644
index 0000000..6bb50f9
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/shade/ShadeWindowLayoutParams.kt
@@ -0,0 +1,69 @@
+/*
+ * 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.systemui.shade
+
+import android.content.Context
+import android.graphics.PixelFormat
+import android.os.Binder
+import android.view.Gravity
+import android.view.ViewGroup
+import android.view.WindowManager.LayoutParams
+import com.android.systemui.scene.shared.flag.SceneContainerFlag
+
+object ShadeWindowLayoutParams {
+    /**
+     * Creates [LayoutParams] for the shade window.
+     *
+     * This is extracted to a single place as those layout params will be used by several places:
+     * - When sysui starts, and the shade is added the first time
+     * - When the shade moves to a different window (e.g. while an external display is connected)
+     */
+    fun create(context: Context): LayoutParams {
+        return LayoutParams(
+                ViewGroup.LayoutParams.MATCH_PARENT,
+                ViewGroup.LayoutParams.MATCH_PARENT,
+                LayoutParams.TYPE_NOTIFICATION_SHADE,
+                LayoutParams.FLAG_NOT_FOCUSABLE or
+                    LayoutParams.FLAG_TOUCHABLE_WHEN_WAKING or
+                    LayoutParams.FLAG_SPLIT_TOUCH or
+                    LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH or
+                    LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS,
+                // Now that the notification shade encompasses the sliding panel and its
+                // translucent backdrop, the entire thing is made TRANSLUCENT and is
+                // hardware-accelerated.
+                PixelFormat.TRANSLUCENT,
+            )
+            .apply {
+                token = Binder()
+                gravity = Gravity.TOP
+                fitInsetsTypes = 0
+                title = "NotificationShade"
+                packageName = context.packageName
+                layoutInDisplayCutoutMode = LayoutParams.LAYOUT_IN_DISPLAY_CUTOUT_MODE_ALWAYS
+                privateFlags = privateFlags or LayoutParams.PRIVATE_FLAG_OPTIMIZE_MEASURE
+                if (SceneContainerFlag.isEnabled) {
+                    // This prevents the appearance and disappearance of the software keyboard (also
+                    // known as the "IME") from scrolling/panning the window to make room for the
+                    // keyboard.
+                    //
+                    // The scene container logic does its own adjustment and animation when the IME
+                    // appears or disappears.
+                    softInputMode = LayoutParams.SOFT_INPUT_ADJUST_NOTHING
+                }
+            }
+    }
+}