[Flutter]WebSockets

這邊會使用WebSocketChannel去與http://www.websocket.org做連線。

連線

final channel = IOWebSocketChannel.connect('wss://echo.websocket.events');

接收

StreamBuilder(
  stream: widget.channel.stream,
  builder: (context, snapshot) {
    //do something​
  },
);

發送

channel.sink.add('Hello!');

關閉連線

channel.sink.close();