Flutter系统信息查询插件system_information_flutter的使用

Flutter系统信息查询插件system_information_flutter的使用

在本指南中，我们将详细介绍如何使用system_information_flutter插件来获取设备的系统信息。此插件允许开发者通过简单的API调用来获取设备的各种信息，如CPU、内存、磁盘等。

安装插件

首先，在你的pubspec.yaml文件中添加system_information依赖：

dependencies:
  flutter:
    sdk: flutter
  system_information: ^0.0.1  # 请确保使用最新版本

然后运行flutter pub get命令来安装依赖。

示例代码

以下是一个完整的示例代码，演示了如何使用system_information插件来获取并打印设备的系统信息。

import 'package:flutter/material.dart';
import 'package:system_information/system_information.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('系统信息查询'),
        ),
        body: Center(
          child: FutureBuilder(
            future: fetchSystemInfo(),
            builder: (context, snapshot) {
              if (snapshot.connectionState == ConnectionState.done) {
                if (snapshot.hasError) {
                  return Text('错误: ${snapshot.error}');
                } else {
                  return Text(snapshot.data.toString());
                }
              } else {
                return CircularProgressIndicator();
              }
            },
          ),
        ),
      ),
    );
  }

  // 获取系统信息的函数
  Future<String> fetchSystemInfo() async {
    final SystemInformation systemInformation = SystemInformation();
    await systemInformation.ensureInitialized(isUseStatic: true);
    return systemInformation.toMessage();
  }
}

解释代码

• 导入必要的包：

  import 'package:flutter/material.dart';
  import 'package:system_information/system_information.dart';
  

• 主应用类 (MyApp)：

  class MyApp extends StatelessWidget {
    @override
    Widget build(BuildContext context) {
      return MaterialApp(
        home: Scaffold(
          appBar: AppBar(
            title: Text('系统信息查询'),
          ),
          body: Center(
            child: FutureBuilder(
              future: fetchSystemInfo(),
              builder: (context, snapshot) {
                if (snapshot.connectionState == ConnectionState.done) {
                  if (snapshot.hasError) {
                    return Text('错误: ${snapshot.error}');
                  } else {
                    return Text(snapshot.data.toString());
                  }
                } else {
                  return CircularProgressIndicator();
                }
              },
            ),
          ),
        ),
      );
    }
  }
  

• 获取系统信息的函数 (fetchSystemInfo)：

  Future<String> fetchSystemInfo() async {
    final SystemInformation systemInformation = SystemInformation();
    await systemInformation.ensureInitialized(isUseStatic: true);
    return systemInformation.toMessage();
  }
  

输出示例

当你运行上述代码时，你将看到类似下面的输出：

Title: MSI-Modern-14-B5M
Os: Ubuntu 24.04 LTS
Platform Type: Linux
Executable Type: cli
Arch: x86_64
Host: Modern 14 B5M REV:1.0 MS-14DL
Device Name: Modern 14 B5M REV:1.0 MS-14DL
Kernel: Linux 6.8.0-38-generic x86_64
Uptime Program: just now
Uptime: up 5 hours, 26 minutes
Shell: zsh 5.9
Cpu: AMD Ryzen 5 5500U with Radeon Graphics (12)
Gpu: Advanced Micro Devices, Inc. [AMD/ATI] Lucienne
Network: MEDIATEK Corp. MT7921K (RZ608) Wi-Fi 6E 80MHz
Disk: Kingston Technology Company, Inc. OM8PCP Design-In PCIe 3 NVMe SSD (DRAM-less)
Power: 78% Charging
Ram Total: 15 GB
Ram Free: 1 GB
Ram Available: 8 GB
Swap Total: 7 GB
Swap Free: 7 GB
Swap Cache: 28 KB
Total Bandwith Download: 131.85 MB
Total Bandwith Upload: 138.43 MB
Total Bandwith: 270.28 MB
Ram Usage By This Program: 62 MB