android 11.0 SystemUI导航栏 添加虚拟按键(一)

SystemUI导航栏布局是由NavigationBarInflaterView.java 负责绘制的
路径: /frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarInflaterView.java

查看源码如下:

public class NavigationBarInflaterView extends FrameLayout
implements NavigationModeController.ModeChangedListener {
   
    
    

private static final String TAG = "NavBarInflater";

public static final String NAV_BAR_VIEWS = "sysui_nav_bar";
public static final String NAV_BAR_LEFT = "sysui_nav_bar_left";
public static final String NAV_BAR_RIGHT