Flutter桌面休眠管理插件flutter_desktop_sleep的使用

2022 © Bikramaditya Meher

flutter_desktop_sleep 插件允许你的Flutter应用程序监听设备即将进入休眠、唤醒或关闭的状态，并提供机会确认用户是否希望在执行某些操作（如注销功能）时关闭正在运行的任务。它适用于Windows和macOS等桌面平台。

示例代码

完整示例Demo

以下是一个完整的示例，展示了如何在Flutter应用程序中使用flutter_desktop_sleep插件：

import 'dart:async';

import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_desktop_sleep/flutter_desktop_sleep.dart';

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

class MyApp extends StatefulWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  String _platformVersion = 'Unknown';
  final _flutterDesktopSleepPlugin = FlutterDesktopSleep();

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

  // 初始化平台状态
  Future<void> initPlatformState() async {
    String platformVersion;
    try {
      platformVersion = await _flutterDesktopSleepPlugin.getPlatformVersion() ??
          'Unknown platform version';
    } on PlatformException {
      platformVersion = 'Failed to get platform version.';
    }

    // 设置窗口休眠处理器
    _flutterDesktopSleepPlugin.setWindowSleepHandler((String? event) async {
      if (kDebugMode) {
        print('Laptop :: $event');
      }
      if (event != null) {
        if (event == 'sleep') {
          print('Laptop is going to sleep');
        } else if (event == 'woke_up') {
          print('Laptop woke up');
        } else if (event == 'terminate_app') {
          print('App is terminating');
          _flutterDesktopSleepPlugin.terminateApp();
        }
      }
    });

    if (!mounted) return;

    setState(() {
      _platformVersion = platformVersion;
    });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Plugin example app'),
        ),
        body: Center(
          child: Text('Running on: $_platformVersion\n'),
        ),
      ),
    );
  }
}

macOS设置

对于macOS，你需要在macos/Runner/AppDelegate.swift中添加以下代码：

import Cocoa
import FlutterMacOS
import Firebase
import flutter_desktop_sleep

@NSApplicationMain
class AppDelegate: FlutterAppDelegate {
  var _windowManager = FlutterDesktopSleepPlugin()
  
  override func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
    return true
  }
  
  override func applicationShouldTerminate(_ sender: NSApplication) -> NSApplication.TerminateReply {
    let controller: FlutterViewController = mainFlutterWindow?.contentViewController as! FlutterViewController
    return _windowManager.applicationShouldTerminate(controller)
  }
}

Windows设置

对于Windows平台，无需额外设置，直接使用即可。

通过以上步骤，你可以在Flutter桌面应用中有效地管理设备的休眠和唤醒事件。