flutter_socket_io 0.0.5

Flutter Socket IO

example/lib/main.dart

import 'dart:async';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_socket_io/flutter_socket_io.dart';

void main() => runApp(new MyApp());

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return new MaterialApp(
      title: 'Flutter Demo',
      theme: new ThemeData(
        // This is the theme of your application.
        //
        // Try running your application with "flutter run". You'll see the
        // application has a blue toolbar. Then, without quitting the app, try
        // changing the primarySwatch below to Colors.green and then invoke
        // "hot reload" (press "r" in the console where you ran "flutter run",
        // or press Run > Flutter Hot Reload in IntelliJ). Notice that the
        // counter didn't reset back to zero; the application is not restarted.
        primarySwatch: Colors.blue,
      ),
      home: new MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);

  // This widget is the home page of your application. It is stateful, meaning
  // that it has a State object (defined below) that contains fields that affect
  // how it looks.

  // This class is the configuration for the state. It holds the values (in this
  // case the title) provided by the parent (in this case the App widget) and
  // used by the build method of the State. Fields in a Widget subclass are
  // always marked "final".

  final String title;

  @override
  _MyHomePageState createState() => new _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;
  var mTextMessageController = new TextEditingController();
  SocketIO socketIO;

  @override
  void initState() {
    super.initState();
  }

  _connectSocket() {
//    socketIO = new SocketIO("http://dev.api.winkers.me:3000/chat", null,
    socketIO = new SocketIO("http://172.16.3.185:3000/chat", null,
        "socketStatus", handlerMethodCall);
    socketIO.connect();
  }

  _subscribes() {
    if (socketIO != null) {
      var subscribes = new Map<String, String>();
      subscribes.putIfAbsent("chat_direct", () => "onReceiveChatMessage");
      print(subscribes.toString());
      socketIO.subscribes(subscribes);
    }
  }

  _unSubscribes() {
    if (socketIO != null) {
      socketIO.unSubscribesAll();
    }
  }

  _reconnectSocket() {
    if (socketIO == null) {
      _connectSocket();
    } else {
      socketIO.connect();
    }
  }

  _disconnectSocket() {
    if (socketIO != null) {
      socketIO.disconnect();
    }
  }

  _destroySocket() {
    if (socketIO != null) {
      socketIO.destroy();
    }
  }

  Future<dynamic> handlerMethodCall(MethodCall call) {
    switch (call.method) {
      case "socketStatus":
        print("SOCKET STATUS: " + call.arguments);
        break;

      case "onReceiveChatMessage":
        _onReceiveChatMessage(call.arguments);
        break;

      case "onFail":
        print("onFail");
        break;

      case "onCancel":
        print("onCancel");
        break;
    }
  }

  void _sendChatMessage(String msg) async {
    if (socketIO != null) {
//      String jsonData = "{\"message\":{\"type\":\"Text\",\"content\":\"Chạy bo thôi Hà pé ơi =))\",\"owner\":\"589f10b9bbcd694aa570988d\",\"avatar\":\"img/avatar-default.png\"},\"sender\":{\"userId\":\"589f10b9bbcd694aa570988d\",\"first\":\"Ha\",\"last\":\"Test 2\",\"location\":{\"lat\":10.792273999999999,\"long\":106.6430356,\"accuracy\":38,\"regionId\":null,\"vendor\":\"gps\",\"verticalAccuracy\":null},\"name\":\"Ha Test 2\"},\"receivers\":[\"587e1147744c6260e2d3a4af\"],\"conversationId\":\"589f116612aa254aa4fef79f\",\"name\":null,\"isAnonymous\":null}";
      String jsonData =
          '{"message":{"type":"Text","content": ${(msg != null && !msg.isEmpty) ? '"${msg}"' : '"Chạy bo thôi Hà pé ơi =))"'},"owner":"589f10b9bbcd694aa570988d","avatar":"img/avatar-default.png"},"sender":{"userId":"589f10b9bbcd694aa570988d","first":"Ha","last":"Test 2","location":{"lat":10.792273999999999,"long":106.6430356,"accuracy":38,"regionId":null,"vendor":"gps","verticalAccuracy":null},"name":"Ha Test 2"},"receivers":["587e1147744c6260e2d3a4af"],"conversationId":"589f116612aa254aa4fef79f","name":null,"isAnonymous":null}';
      socketIO.sendMessage("chat_direct", jsonData, "onReceiveChatMessage");
    }
  }

  void _onReceiveChatMessage(dynamic message) {
    print("Message from UFO: " + message);
  }

  void _incrementCounter() {
    setState(() {
      // This call to setState tells the Flutter framework that something has
      // changed in this State, which causes it to rerun the build method below
      // so that the display can reflect the updated values. If we changed(
      // _counter without calling setState(), then the build method would not be
      // called again, and so nothing would appear to happen.
      _counter++;
    });
  }

  void _showToast() {
//    IceteaStudioUtilsPlugin.showToast(msg: "Hello cô ba", gravity: ToastGravity.TOP, isFullWidth: true);
    _sendChatMessage(mTextMessageController.text);
  }

  @override
  Widget build(BuildContext context) {
    // This method is rerun every time setState is called, for instance as done
    // by the _incrementCounter method above.
    //
    // The Flutter framework has been optimized to make rerunning build methods
    // fast, so that you can just rebuild anything that needs updating rather
    // than having to individually change instances of widgets.
    return new Scaffold(
      appBar: new AppBar(
        // Here we take the value from the MyHomePage object that was created by
        // the App.build method, and use it to set our appbar title.
        title: new Text(widget.title),
      ),
      body: new Center(
        // Center is a layout widget. It takes a single child and positions it
        // in the middle of the parent.
        child: new Column(
          // Column is also layout widget. It takes a list of children and
          // arranges them vertically. By default, it sizes itself to fit its
          // children horizontally, and tries to be as tall as its parent.
          //
          // Invoke "debug paint" (press "p" in the console where you ran
          // "flutter run", or select "Toggle Debug Paint" from the Flutter tool
          // window in IntelliJ) to see the wireframe for each widget.
          //
          // Column has various properties to control how it sizes itself and
          // how it positions its children. Here we use mainAxisAlignment to
          // center the children vertically; the main axis here is the vertical
          // axis because Columns are vertical (the cross axis would be
          // horizontal).
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            new TextField(
              controller: mTextMessageController,
              maxLines: 2,
            ),
            new Text(
              '$_counter',
              style: Theme.of(context).textTheme.display1,
            ),
            new RaisedButton(
              child: const Text('SEND', style: TextStyle(color: Colors.white)),
              color: Theme.of(context).accentColor,
              elevation: 0.0,
              splashColor: Colors.blueGrey,
              onPressed: () {
                _showToast();
//                _sendChatMessage(mTextMessageController.text);
              },
            ),
            new RaisedButton(
              child:
                  const Text('CONNECT', style: TextStyle(color: Colors.white)),
              color: Theme.of(context).accentColor,
              elevation: 0.0,
              splashColor: Colors.blueGrey,
              onPressed: () {
                _connectSocket();
//                _sendChatMessage(mTextMessageController.text);
              },
            ),
            new RaisedButton(
              child: const Text('SUBSCRIBES',
                  style: TextStyle(color: Colors.white)),
              color: Theme.of(context).accentColor,
              elevation: 0.0,
              splashColor: Colors.blueGrey,
              onPressed: () {
                _subscribes();
//                _sendChatMessage(mTextMessageController.text);
              },
            ),
            new RaisedButton(
              child: const Text('UNSUBSCRIBES',
                  style: TextStyle(color: Colors.white)),
              color: Theme.of(context).accentColor,
              elevation: 0.0,
              splashColor: Colors.blueGrey,
              onPressed: () {
                _unSubscribes();
//                _sendChatMessage(mTextMessageController.text);
              },
            ),
            new RaisedButton(
              child: const Text('RECONNECT',
                  style: TextStyle(color: Colors.white)),
              color: Theme.of(context).accentColor,
              elevation: 0.0,
              splashColor: Colors.blueGrey,
              onPressed: () {
                _reconnectSocket();
//                _sendChatMessage(mTextMessageController.text);
              },
            ),
            new RaisedButton(
              child: const Text('DISCONNECT',
                  style: TextStyle(color: Colors.white)),
              color: Theme.of(context).accentColor,
              elevation: 0.0,
              splashColor: Colors.blueGrey,
              onPressed: () {
                _disconnectSocket();
//                _sendChatMessage(mTextMessageController.text);
              },
            ),
            new RaisedButton(
              child:
                  const Text('DESTROY', style: TextStyle(color: Colors.white)),
              color: Theme.of(context).accentColor,
              elevation: 0.0,
              splashColor: Colors.blueGrey,
              onPressed: () {
                _destroySocket();
//                _sendChatMessage(mTextMessageController.text);
              },
            ),
          ],
        ),
      ),
      floatingActionButton: new FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: new Icon(Icons.add),
      ), // This trailing comma makes auto-formatting nicer for build methods.
    );
  }
}