rk3568 安卓11双屏异显，当前项目有两个屏，一个是mipi 接口设为主屏，一个rgb 接口设为副屏，现在需要将副屏底部虚拟导航栏隐藏，有快速的方法：
在framework/base/services/core/java/com/android/server/wm/DisplayPolicy.java

diff --git a/services/core/java/com/android/server/wm/DisplayPolicy.java b/services/core/java/com/android/server/wm/DisplayPolicy.java
index 29881cc761b2..f340bb308a0f 100644
--- a/services/core/java/com/android/server/wm/DisplayPolicy.java
+++ b/services/core/java/com/android/server/wm/DisplayPolicy.java
@@ -656,7 +656,8 @@ public class DisplayPolicy {}} else {mHasStatusBar = false;
-            mHasNavigationBar = mDisplayContent.supportsSystemDecorations();
+           mHasNavigationBar = false;
+            //mHasNavigationBar = mDisplayContent.supportsSystemDecorations();}mRefreshRatePolicy = new RefreshRatePolicy(mService,

编译烧录即可。