feat: add background services and map status management
This commit is contained in:
Nedifinita
211
lib/services/background_service.dart
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211
lib/services/background_service.dart
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@@ -0,0 +1,211 @@
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import 'dart:async';
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import 'dart:io';
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import 'dart:ui';
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import 'package:flutter_background_service/flutter_background_service.dart';
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import 'package:flutter_background_service_android/flutter_background_service_android.dart';
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import 'package:flutter_local_notifications/flutter_local_notifications.dart';
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import 'package:lbjconsole/services/ble_service.dart';
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const String _notificationChannelId = 'lbj_console_channel';
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const String _notificationChannelName = 'LBJ Console 后台服务';
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const String _notificationChannelDescription = '保持蓝牙连接稳定';
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const int _notificationId = 114514;
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class BackgroundService {
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static final FlutterBackgroundService _service = FlutterBackgroundService();
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static bool _isInitialized = false;
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static Future<void> initialize() async {
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if (_isInitialized) return;
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final service = FlutterBackgroundService();
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final flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin();
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if (Platform.isAndroid) {
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const AndroidNotificationChannel channel = AndroidNotificationChannel(
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_notificationChannelId,
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_notificationChannelName,
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description: _notificationChannelDescription,
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importance: Importance.low,
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enableLights: false,
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enableVibration: false,
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playSound: false,
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);
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await flutterLocalNotificationsPlugin.resolvePlatformSpecificImplementation<
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AndroidFlutterLocalNotificationsPlugin>()?.createNotificationChannel(channel);
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}
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await service.configure(
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androidConfiguration: AndroidConfiguration(
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onStart: _onStart,
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autoStart: true,
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isForegroundMode: true,
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notificationChannelId: _notificationChannelId,
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initialNotificationTitle: 'LBJ Console',
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initialNotificationContent: '蓝牙连接监控中',
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foregroundServiceNotificationId: _notificationId,
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),
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iosConfiguration: IosConfiguration(
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autoStart: true,
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onForeground: _onStart,
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onBackground: _onIosBackground,
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),
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);
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_isInitialized = true;
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}
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@pragma('vm:entry-point')
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static void _onStart(ServiceInstance service) async {
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DartPluginRegistrant.ensureInitialized();
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if (service is AndroidServiceInstance) {
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service.on('setAsForeground').listen((event) {
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service.setAsForegroundService();
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});
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service.on('setAsBackground').listen((event) {
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service.setAsBackgroundService();
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});
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}
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service.on('stopService').listen((event) {
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service.stopSelf();
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});
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BLEService().initialize();
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if (service is AndroidServiceInstance) {
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await Future.delayed(const Duration(seconds: 1));
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if (await service.isForegroundService()) {
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final flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin();
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try {
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const AndroidNotificationChannel channel = AndroidNotificationChannel(
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_notificationChannelId,
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_notificationChannelName,
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description: _notificationChannelDescription,
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importance: Importance.low,
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enableLights: false,
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enableVibration: false,
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playSound: false,
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);
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await flutterLocalNotificationsPlugin.resolvePlatformSpecificImplementation<
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AndroidFlutterLocalNotificationsPlugin>()?.createNotificationChannel(channel);
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await flutterLocalNotificationsPlugin.show(
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_notificationId,
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'LBJ Console',
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'蓝牙连接监控中',
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NotificationDetails(
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android: AndroidNotificationDetails(
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_notificationChannelId,
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_notificationChannelName,
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channelDescription: _notificationChannelDescription,
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icon: '@mipmap/ic_launcher',
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ongoing: true,
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autoCancel: false,
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importance: Importance.low,
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priority: Priority.low,
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enableLights: false,
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enableVibration: false,
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playSound: false,
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onlyAlertOnce: true,
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setAsGroupSummary: false,
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groupKey: 'lbj_console_group',
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visibility: NotificationVisibility.public,
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category: AndroidNotificationCategory.service,
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),
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),
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);
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print('前台服务通知显示成功');
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} catch (e) {
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print('前台服务通知显示失败: $e');
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}
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}
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}
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Timer.periodic(const Duration(seconds: 30), (timer) async {
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if (service is AndroidServiceInstance) {
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if (await service.isForegroundService()) {
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try {
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final bleService = BLEService();
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final isConnected = bleService.isConnected;
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final deviceStatus = bleService.deviceStatus;
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final flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin();
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await flutterLocalNotificationsPlugin.show(
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_notificationId,
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'LBJ Console',
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isConnected ? '蓝牙已连接 - $deviceStatus' : '蓝牙未连接 - 自动重连中',
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NotificationDetails(
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android: AndroidNotificationDetails(
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_notificationChannelId,
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_notificationChannelName,
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channelDescription: _notificationChannelDescription,
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icon: '@mipmap/ic_launcher',
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ongoing: true,
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autoCancel: false,
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importance: Importance.low,
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priority: Priority.low,
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enableLights: false,
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enableVibration: false,
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playSound: false,
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onlyAlertOnce: true,
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setAsGroupSummary: false,
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groupKey: 'lbj_console_group',
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visibility: NotificationVisibility.public,
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category: AndroidNotificationCategory.service,
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),
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),
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);
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} catch (e) {
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print('前台服务通知更新失败: $e');
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}
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}
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}
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});
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}
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@pragma('vm:entry-point')
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static Future<bool> _onIosBackground(ServiceInstance service) async {
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return true;
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}
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static Future<void> startService() async {
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await initialize();
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final service = FlutterBackgroundService();
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if (Platform.isAndroid) {
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final isRunning = await service.isRunning();
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if (!isRunning) {
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service.startService();
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}
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} else if (Platform.isIOS) {
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service.startService();
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}
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}
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static Future<void> stopService() async {
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final service = FlutterBackgroundService();
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service.invoke('stopService');
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}
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static Future<bool> isRunning() async {
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final service = FlutterBackgroundService();
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return await service.isRunning();
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}
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static void setForegroundMode(bool isForeground) {
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final service = FlutterBackgroundService();
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if (isForeground) {
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service.invoke('setAsForeground');
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} else {
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service.invoke('setAsBackground');
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}
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}
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}
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