30.SRWebSocket的断线重连

socket断开后,再使用同一个socket重新open会报错,因为SRWebSocket的open方法只能被调用一次,所以我们创建新的socket对象来重连解决这一问题

func webSocket(webSocket: SRWebSocket!, didFailWithError error: NSError!) {
        print("WebSocket connect failed.", webSocket.readyState.rawValue)
        webSocket.delegate = nil
        reconnect()
    }

func reconnect() {
        let url = NSURL(string: SOCKET_URL)
        webSocket = SRWebSocket(URL: url)
        webSocket.delegate = self
        webSocket.open()
    }