Flutter网络速度测试插件internet_speed_test的使用

internet_speed_test 是一个用于在Flutter应用中集成网络速度测试功能的插件。它支持下载和上传速度的测试，并且可以自定义测试服务器URL。

快速开始

添加依赖

首先，在你的pubspec.yaml文件中添加插件依赖：

dependencies:
  internet_speed_test: ^1.5.0

示例代码

以下是一个完整的示例demo，展示了如何使用internet_speed_test插件来测试网络速度。

import 'package:flutter/material.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 StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  final internetSpeedTest = InternetSpeedTest();

  double downloadRate = 0;
  double uploadRate = 0;
  String downloadProgress = '0';
  String uploadProgress = '0';

  String unitText = 'Mb/s';

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Plugin example app'),
        ),
        body: Center(
          child: Column(
            mainAxisSize: MainAxisSize.min,
            children: <Widget>[
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceAround,
                children: <Widget>[
                  Text('Progress $downloadProgress%'),
                  Text('Download rate  $downloadRate $unitText'),
                ],
              ),
              RaisedButton(
                child: Text('Start Download Testing'),
                onPressed: () {
                  internetSpeedTest.startDownloadTesting(
                    onDone: (double transferRate, SpeedUnit unit) {
                      print('The transfer rate $transferRate');
                      setState(() {
                        downloadRate = transferRate;
                        unitText = unit == SpeedUnit.Kbps ? 'Kb/s' : 'Mb/s';
                        downloadProgress = '100';
                      });
                    },
                    onProgress: (double percent, double transferRate, SpeedUnit unit) {
                      print('The transfer rate $transferRate, the percent $percent');
                      setState(() {
                        downloadRate = transferRate;
                        unitText = unit == SpeedUnit.Kbps ? 'Kb/s' : 'Mb/s';
                        downloadProgress = percent.toStringAsFixed(2);
                      });
                    },
                    onError: (String errorMessage, String speedTestError) {
                      print('The error message $errorMessage, the speed test error $speedTestError');
                    },
                    fileSize: 20000000, // Optional parameter to specify file size for testing
                  );
                },
              ),
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceAround,
                children: <Widget>[
                  Text('Progress $uploadProgress%'),
                  Text('Upload rate  $uploadRate Kb/s'),
                ],
              ),
              RaisedButton(
                child: Text('Start Upload Testing'),
                onPressed: () {
                  internetSpeedTest.startUploadTesting(
                    onDone: (double transferRate, SpeedUnit unit) {
                      print('The transfer rate $transferRate');
                      setState(() {
                        uploadRate = transferRate;
                        unitText = unit == SpeedUnit.Kbps ? 'Kb/s' : 'Mb/s';
                        uploadProgress = '100';
                      });
                    },
                    onProgress: (double percent, double transferRate, SpeedUnit unit) {
                      print('The transfer rate $transferRate, the percent $percent');
                      setState(() {
                        uploadRate = transferRate;
                        unitText = unit == SpeedUnit.Kbps ? 'Kb/s' : 'Mb/s';
                        uploadProgress = percent.toStringAsFixed(2);
                      });
                    },
                    onError: (String errorMessage, String speedTestError) {
                      print('The error message $errorMessage, the speed test error $speedTestError');
                    },
                    fileSize: 20000000, // Optional parameter to specify file size for testing
                  );
                },
              ),
            ],
          ),
        ),
      ),
    );
  }
}

额外功能

你还可以配置自己的测试服务器URL：

internetSpeedTest.startDownloadTesting(
  onDone: (double transferRate, SpeedUnit unit) {
    // Change UI
  },
  onProgress: (double percent, double transferRate, SpeedUnit unit) {
    // Change UI
  },
  onError: (String errorMessage, String speedTestError) {
    // Show toast error
  },
  testServer: 'http://your.custom.server.url/1M.iso', // Your test server URL goes here
);

internetSpeedTest.startUploadTesting(
  onDone: (double transferRate, SpeedUnit unit) {
    // Change UI
  },
  onProgress: (double percent, double transferRate, SpeedUnit unit) {
    // Change UI
  },
  onError: (String errorMessage, String speedTestError) {
    // Show toast error
  },
  testServer: 'http://your.custom.server.url/', // Your test server URL goes here
);