main.dart

import 'package:flutter/material.dart';
import 'package:network_connectivity_tut/check_connection.dart';
import 'package:network_connectivity_tut/connectionType.dart';
import 'package:internet_speed_test/internet_speed_test.dart';
import 'package:internet_speed_test/callbacks_enum.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Network Connectivity Tutorial',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  final internetSpeedTest = InternetSpeedTest();
  double connectionDownloadRate = 0;
  String connectionUnitText = 'Mb/s';

  @override
  Widget build(BuildContext context) {
    return SafeArea(
      child: Scaffold(
        appBar: AppBar(
          title: Text('Network Connectivity Home'),
        ),
        body: Column(
          crossAxisAlignment: CrossAxisAlignment.center,
          children: <Widget>[
            Container(
              child: CheckConnection(),
            ),
            Container(
              child: ConnectionType(),
            ),
            Row(
              mainAxisAlignment: MainAxisAlignment.start,
              children: <Widget>[
                Padding(
                  padding: EdgeInsets.all(16.0),
                  child: Text('$connectionDownloadRate, $connectionUnitText'),
                ),
                ElevatedButton(
                  child: Text('Test Speed'),
                  onPressed: () {
                    internetSpeedTest.startDownloadTesting(
                        onDone: (double transferRate, SpeedUnit unit) {
                          setState(() {
                            connectionDownloadRate = transferRate;
                            connectionUnitText =
                                unit == SpeedUnit.Kbps ? 'Kb/s' : 'Mb/s';
                          });
                        },
                        onProgress: (double percent, double transferRate,
                            SpeedUnit unit) {
                          setState(() {
                            connectionDownloadRate = transferRate;
                            connectionUnitText =
                                unit == SpeedUnit.Kbps ? 'Kb/s' : 'Mb/s';
                          });
                        },
                        onError: (String errorMessage, String speedTestError) {
                          print(errorMessage);
                        },
                        fileSize: 2000000);
                  },
                ),
              ],
            )
          ],
        ),
      ),
    );
  }
}