Flutter系统状态获取插件system_status的使用

system_status 是一个用于MacOS系统的Flutter插件，它提供了实时监控RAM、电池、存储和CPU使用情况的功能。该插件具有以下特点：

• 实时监控系统资源：RAM、电池、存储和CPU。
• 用户友好的界面，易于集成和使用。
• 支持MacOS 10.14及以上版本。
• 低系统资源占用，优化了性能监控而不会产生额外开销。

安装

要使用此插件，请在你的pubspec.yaml文件中添加system_status作为依赖项。

dependencies:
  flutter:
    sdk: flutter
  system_status: ^1.0.7

然后，在需要使用的地方导入该包：

import 'package:system_status/system_status.dart';

使用

以下是如何初始化插件并获取系统状态信息的示例代码：

// 初始化插件
SystemStatusMacOS systemStatus = SystemStatusMacOS();

// 获取系统状态信息
void getSystemStatus() async {
  try {
    SystemStatusModel? status = await systemStatus.getSystemStatus();
   
    print('System Status: ${status}');
  } catch (e) {
    print('Error retrieving system status: $e');
  }
}

示例代码

以下是完整的示例代码，展示了如何在Flutter应用中使用system_status插件来实时监控系统状态。

import 'dart:async';

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

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

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  [@override](/user/override)
  Widget build(BuildContext context) {
    return const MaterialApp(
      title: 'SystemStatus Demo',
      home: SystemStatusPage(),
    );
  }
}

class SystemStatusPage extends StatefulWidget {
  const SystemStatusPage({super.key});

  [@override](/user/override)
  _SystemStatusPageState createState() => _SystemStatusPageState();
}

class _SystemStatusPageState extends State<SystemStatusPage> {
  late Timer timer;
  final SystemStatusMacOS systemStatus = SystemStatusMacOS();
  SystemStatusModel? systemStatusModel;

  [@override](/user/override)
  void initState() {
    super.initState();

    // 每秒更新一次系统状态
    timer = Timer.periodic(const Duration(seconds: 1), (Timer t) {
      fetchSystemStatus();
    });
  }

  [@override](/user/override)
  void dispose() {
    timer.cancel();
    super.dispose();
  }

  // 获取系统状态
  Future<void> fetchSystemStatus() async {
    try {
      final SystemStatusModel? newSystemStatusModel = await systemStatus.getSystemStatus();

      if (newSystemStatusModel != null) {
        setState(() {
          systemStatusModel = newSystemStatusModel;
        });
      }
    } catch (e) {
      debugPrint('Error fetching system status: $e');
    }
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('System Status'),
      ),
      body: systemStatusModel != null
          ? ListView(
              padding: const EdgeInsets.all(16.0),
              children: [
                // CPU 使用情况
                ListTile(
                  title: Text('CPU Usage - %${((systemStatusModel?.cpuUsage?.userPercentage ?? 0) + (systemStatusModel?.cpuUsage?.sysPercentage ?? 0)).toStringAsFixed(2)}'),
                  subtitle: Text(
                      'User: ${systemStatusModel?.cpuUsage?.userPercentage?.toStringAsFixed(2)}% | Sys: ${systemStatusModel?.cpuUsage?.sysPercentage?.toStringAsFixed(2)}% | Idle: ${systemStatusModel?.cpuUsage?.idlePercentage?.toStringAsFixed(2)}%'),
                ),
                // 电池状态
                ListTile(
                  title: Text('Battery - %${systemStatusModel?.batteryStatus?.currentCapacity}'),
                  subtitle: Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: [
                      Text('Health: ${systemStatusModel?.batteryStatus?.healthString}'),
                      Text('Charging: ${systemStatusModel?.batteryStatus?.isCharging == true ? 'Yes' : 'No'}'),
                      Text('Charged: ${systemStatusModel?.batteryStatus?.isCharged == true ? 'Yes' : 'No'}'),
                      Text('Cycle Count: ${systemStatusModel?.batteryStatus?.cycleCount}'),
                      Text('Ac Powered: ${systemStatusModel?.batteryStatus?.acPowered == true ? 'Yes' : 'No'}'),
                      Text('Temperature: ${systemStatusModel?.batteryStatus?.temperature?.toStringAsFixed(2)} C'),
                    ],
                  ),
                ),
                // 磁盘空间
                ListTile(
                  title: const Text('Disk Space'),
                  subtitle: Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: [
                      SelectableText('Total: ${((systemStatusModel?.diskSpace?.totalDiskSpace ?? 0) / (1024 * 1024 * 1024)).toStringAsFixed(2)} GB'),
                      Text('Free: ${((systemStatusModel?.diskSpace?.freeDiskSpace ?? 0) / (1024 * 1024 * 1024)).toStringAsFixed(2)} GB'),
                      Text('Used: ${((systemStatusModel?.diskSpace?.usedDiskSpace ?? 0) / (1024 * 1024 * 1024)).toStringAsFixed(2)} GB'),
                      Text('Used Percentage: ${systemStatusModel?.diskSpace?.usedPercentage?.toStringAsFixed(2)}%'),
                    ],
                  ),
                ),
                // 内存统计
                ListTile(
                  title: Text('Memory Statistics - %${systemStatusModel?.memoryStatistics?.memoryUsageRatio?.toStringAsFixed(2)}'),
                  subtitle: Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: [
                      Text('Application Memory: ${systemStatusModel?.memoryStatistics?.applicationMemory} bytes'),
                      Text('Wired Memory: ${systemStatusModel?.memoryStatistics?.wiredMemory} bytes'),
                      Text('Compressed Memory: ${systemStatusModel?.memoryStatistics?.compressedMemory} bytes'),
                      Text('Memory Pressure: ${systemStatusModel?.memoryStatistics?.memoryPressure}'),
                    ],
                  ),
                ),
              ],
            )
          : const Center(
              child: CircularProgressIndicator(),
            ),
    );
  }
}