android12下拉菜单栏界面上方显示无内容

android12在默认无锁屏的情况下，下拉菜单栏界面上方显示无内容，添加上滑动触屏或者其他锁屏方式无此问题，如果想在无任何锁屏情况下，下拉菜单栏界面上方有内容显示，可以尝试下方修改方式：

index c2f9412fbdc0..4cf0ef6c604d
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelViewController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelViewController.java
@@ -1051,6 +1051,8 @@ public class NotificationPanelViewController extends PanelViewController {
         updateKeyguardStatusViewAlignment(/* animate= */false);

         mKeyguardMediaController.refreshMediaPosition();
+       mSplitShadeHeaderController.setShadeExpanded(mBarState == SHADE || mBarState == SHADE_LOCKED);
+
     }

     private static void ensureAllViewsHaveIds(ViewGroup parentView) {