How to reconnect and resend request?

My code below，but I caught a ANR ，I want know the correct method to reconnect, thx.
```
_listen() async {
_channel.stream.listen((message) {

}, onError: (error) async {
Fluttertoast.showToast(msg: "onerror");
await Future.delayed(Duration(milliseconds: 1000));
reConnect();
}, onDone: () async {
Fluttertoast.showToast(msg: "ondone");
await Future.delayed(Duration(milliseconds: 1000));
reConnect();
});
}

void reConnect() {
print("reConnect------>IOWebSocketChannel");
_channel = IOWebSocketChannel.connect(Address.SOCKET_BASE_URL_RELEASE);
_channel.sink.add(getHistoryDealParam());
_channel.sink.add(getRealTimeDeal());
_listen();
}

```
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