NORT

[ramazaiuraga-gif]

import 'package:flutter/material.dart';
import 'dart:convert';
import 'package:web_socket_channel/io.dart';

void main() => runApp(App());

class App extends StatelessWidget {
@OverRide
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
home: Chat(),
);
}
}

class Chat extends StatefulWidget {
@OverRide
State createState() => _ChatState();
}

class _ChatState extends State {

final userChannel = IOWebSocketChannel.connect(
'ws://YOUR_SERVER_IP:8000/ws/user1'
);

final adminChannel = IOWebSocketChannel.connect(
'ws://YOUR_SERVER_IP:8000/admin/ultra_secret_key_123'
);

TextEditingController c = TextEditingController();
List msgs = [];

@OverRide
void initState() {
super.initState();

userChannel.stream.listen((d) {
  setState(() {
    msgs.add(jsonDecode(d));
  });
});

}

void send() {
userChannel.sink.add(jsonEncode({
"to": "user2",
"text": c.text
}));

c.clear();

}

void ban(String user) {
adminChannel.sink.add(jsonEncode({
"action": "ban",
"user_id": user
}));
}

@OverRide
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Color(0xFF2C2C2E),
appBar: AppBar(title: Text("Chat")),
body: Column(
children: [

      Expanded(
        child: ListView(
          children: msgs.map((m) {
            return Container(
              margin: EdgeInsets.all(8),
              padding: EdgeInsets.all(10),
              color: Colors.white,
              child: Text("${m['from']} → ${m['text']}"),
            );
          }).toList(),
        ),
      ),

      Row(
        children: [
          Expanded(child: TextField(controller: c)),
          IconButton(
            icon: Icon(Icons.send),
            onPressed: send,
          )
        ],
      )
    ],
  ),
);

}
}