sendMessage abstract method
发送控制消息
message 要发送的消息
callback 接收响应的回调
Implementation
void sendMessage(WebRtcHttpMessage message, OnReceiveMessageCallback? callback);
发送控制消息
message 要发送的消息
callback 接收响应的回调
void sendMessage(WebRtcHttpMessage message, OnReceiveMessageCallback? callback);