Android WindowManager 原理解析参考文章

Android 带你彻底理解 Window 和 WindowManager

https://blog.csdn.net/yhaolpz/article/details/68936932

Android解析WindowManager（一）WindowManager体系

https://blog.csdn.net/itachi85/article/details/77888668

Android解析WindowManager（二）Window的属性

https://blog.csdn.net/itachi85/article/details/77939884

Android解析WindowManager（三）Window的添加过程

http://liuwangshu.cn/framework/wm/3-add-window.html

Android窗口管理服务WindowManagerService的简要介绍和学习计划

https://blog.csdn.net/luoshengyang/article/details/8462738

深入理解WindowManagerService

https://blog.csdn.net/innost/article/details/47660193