Navigation Bar

https://blog.csdn.net/hqocshheqing/article/details/60869415

Android NavigationBar 代码分析记录
https://www.jianshu.com/p/f0e7fa09f199

Android 7.0 虚拟按键（NavigationBar）源码分析 之 View的创建流程
https://blog.csdn.net/kuaiguixs/article/details/78291695

android源码之WMS分析笔记
https://www.jianshu.com/p/315dac58e675

[ViewRootImpl的PreMeasure、WindowLayout、EndMeasure、Layout、Draw]
http://www.cnblogs.com/wangle12138/p/7839036.html

Android_5.0定制--------在Launcher界面改变SystemUI中的NavigationBar和StatusBar背景颜色
https://blog.csdn.net/qq_27062249/article/details/52590692

Android 7.0 SystemUI 之启动和状态栏和导航栏简介
https://blog.csdn.net/qq_31530015/article/details/53507968

Android windowTranslucentStatus属性源码分析
https://www.2cto.com/kf/201804/737197.html

全屏、沉浸式、fitSystemWindow使用及原理分析：全方位控制“沉浸式”的实现
https://www.jianshu.com/p/28f1954812b3

[Android][SystemUI]navigationbar 3个虚拟键隐藏与显示
https://blog.csdn.net/u013398960/article/details/60469629

Android之framework修改底部导航栏NavigationBar动态显示和隐藏
https://www.2cto.com/kf/201505/399678.html