decor view & viewroot指的是什么？

[msgsnd]

decor view (containing the standard window frame/decorations and the client's content inside of that), which can be added as a window to the window manager.
Viewroot: root view
具体指的是什么，如何解释？

[msgsnd]

欢迎接续补充

[msgsnd]

我有一个window，如何遍历所有的view？

[android_baiyuchuan]

ActivityThread.java中调用wm.addView(decor, l);把它加入到window manager proxy的mViews中，同时为这个decor view创建一个ViewRoot，ViewRoot负责协调decor view与window manager直接绘图、事件处理。
ViewRoot中有IWindowSession和IWindow用来和window manger打交道和接收window manager传过来的消息，消息传过来后ViewRoot分发给decor view，再由decor view进行分发

[msgsnd]

>>消息传过来后ViewRoot分发给decor view，再由decor view进行分发
我看到的一些事件分发如key， touch都是viewroot直接分发给view，需要仔细看下

[msgsnd]

Retrieve the top-level window decor view (containing the standard window frame/decorations and the client's content inside of that), which can be added as a window to the window manager.
Note that calling this function for the first time "locks in" various window characteristics as described in setContentView(View, android.view.ViewGroup.LayoutParams).