Lopper Native的UML

NativeMessageQueue

#mLooper:Looper

+pollOnce()+wake()+handleEvent()

Looper

+pollOnce()+pollAll()+wake()+addFd()+sendMessage()+removeMessages()+prepare()+getForThread()+setForThread()

MessageQueue

+getLooper(rtn_looper:Looper

RefBase

MessageHandler

+handleMessage()

WeakMessageHandler

#mHandler:wp<MessageHandler>

+HandleMessage()