diff --git a/services/core/java/com/android/server/wm/ActivityTaskManagerService.java b/services/core/java/com/android/server/wm/ActivityTaskManagerService.java
index 21d300a..7bacc42 100644
--- a/services/core/java/com/android/server/wm/ActivityTaskManagerService.java
+++ b/services/core/java/com/android/server/wm/ActivityTaskManagerService.java
@@ -356,6 +356,8 @@
     ActivityManagerInternal mAmInternal;
     UriGrantsManagerInternal mUgmInternal;
     private PackageManagerInternal mPmInternal;
+    /** The cached sys ui service component name from package manager. */
+    private ComponentName mSysUiServiceComponent;
     private PermissionPolicyInternal mPermissionPolicyInternal;
     @VisibleForTesting
     final ActivityTaskManagerInternal mInternal;
@@ -5869,6 +5871,14 @@
         return mPmInternal;
     }
 
+    ComponentName getSysUiServiceComponentLocked() {
+        if (mSysUiServiceComponent == null) {
+            final PackageManagerInternal pm = getPackageManagerInternalLocked();
+            mSysUiServiceComponent = pm.getSystemUiServiceComponent();
+        }
+        return mSysUiServiceComponent;
+    }
+
     PermissionPolicyInternal getPermissionPolicyInternal() {
         if (mPermissionPolicyInternal == null) {
             mPermissionPolicyInternal = LocalServices.getService(PermissionPolicyInternal.class);