按键在Framework中的传递

dispatchKey

WMThread.run()

底层调用

dispatchKeyEvent

deliverKeyEvent

PhoneWindow

main()

dispatchMotion

superDispatchKeyEvent

底层按键消息

ViewGroup

nativeInit()注册底层回调Callbacks

InputManager()

setView

InputManager.Callbacks

WindowManagerImpl

SystemServer

设置回调

init2()

View

InputMonitor

addView

PhoneWindowManager

PhoneWindow.DecorView

interceptKeyBeforeDispatching

WindowManagerService(**)

run()

handleMotion

WindowManagerService

InputHandler

init1()

communication with the global system window manager

Activity

mFeatureId 0

handleKey

Wraps the C++ InputManager and provides its callbacks.

InputManager

ViewRootImpl