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贴出安卓N版本ARTSPConnection::sendRequest原文:
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void ARTSPConnection::sendRequest(const char *request, const sp<AMessage> &reply) {//新建消息msg,消息名为kWhatSendRequest,消息的处理者为this,也即ARTSPConnection//将要发送的消息添加到"request"字段//将应答异步处理消息的引用添加到"reply"字段sp<AMessage> msg = new AMessage(kWhatSendRequest, this);msg->setString("request", request);msg->setMessage("reply", reply);msg->post();
} ==>
void ARTSPConnection::onMessageReceived(const sp<AMessage> &msg) {switch (msg->what()) {case kWhatConnect:onConnect(msg);break;case kWhatDisconnect:onDisconnect(msg);break;case kWhatCompleteConnection:onCompleteConnection(msg);break;case kWhatSendRequest://对消息名为kWhatSendRequest的处理//调用onSendRequest(msg)完成处理的细节//onSendRequest下一文介绍onSendRequest(msg);break;case kWhatReceiveResponse:onReceiveResponse();break;case kWhatObserveBinaryData:{CHECK(msg->findMessage("reply", &mObserveBinaryMessage));break;}default:TRESPASS();break;}
}
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