合肥市网站制作,百度云建站,长春做网站,网页版梦幻西游兑换码flutter_local_notifications 消息通知
flutter_local_notifications地址
flutter_local_notifications: ^18.0.1class NotificationHelper {//工厂模式调用该类时#xff0c;默认调用此方法#xff0c;将实例对象返回出去static NotificationHelper? _instance null;sta…flutter_local_notifications 消息通知
flutter_local_notifications地址
flutter_local_notifications: ^18.0.1class NotificationHelper {//工厂模式调用该类时默认调用此方法将实例对象返回出去static NotificationHelper? _instance null;static NotificationHelper getInstance() {_instance ?? NotificationHelper._initial();return _instance!;}factory NotificationHelper() _instance ?? NotificationHelper._initial();//创建命名构造函数NotificationHelper._initial() {initialize();}// FlutterLocalNotificationsPlugin实例final FlutterLocalNotificationsPlugin _notificationsPlugin FlutterLocalNotificationsPlugin();// 常量定义static const String _channelId your.channel.id;static const String _channelName your channel name;static const String _channelDescription your channel description;static const String _ticker ticker;static const String _darwinNotificationCategoryPlain plainCategory;// 初始化通知插件Futurevoid initialize() async {try {final AndroidInitializationSettings initializationSettingsAndroid AndroidInitializationSettings(mipmap/ic_launcher);final DarwinInitializationSettings initializationSettingsIOS DarwinInitializationSettings();final InitializationSettings initializationSettings InitializationSettings(android: initializationSettingsAndroid,iOS: initializationSettingsIOS);await _notificationsPlugin.initialize(initializationSettings);} catch (e) {print(初始化通知插件失败: $e);}}Futurevoid requestNotificationPermissions() async {if (await Permission.notification.isDenied) {final status await Permission.notification.request();final status1 await Permission.scheduleExactAlarm.request();LogUtils.d(requestNotificationPermissions 通知权限status1 $status1);if (status.isGranted) {LogUtils.d(requestNotificationPermissions 通知权限已授予);print(通知权限已授予);} else {LogUtils.d(requestNotificationPermissions 通知权限被拒绝);print(通知权限被拒绝);}} else {LogUtils.d(requestNotificationPermissions 通知权限已授予);print(通知权限已授予);}}// 显示通知Futurevoid showNotification({required String title, required String body}) async {try {final AndroidNotificationDetails androidNotificationDetails AndroidNotificationDetails(_channelId, _channelName,channelDescription: _channelDescription,importance: Importance.max,priority: Priority.high,ticker: _ticker);final DarwinNotificationDetails iosNotificationDetails DarwinNotificationDetails(categoryIdentifier: _darwinNotificationCategoryPlain);final NotificationDetails platformChannelSpecifics NotificationDetails(android: androidNotificationDetails, iOS: iosNotificationDetails);await _notificationsPlugin.show(1,title,body,platformChannelSpecifics,);} catch (e) {print(显示通知失败: $e);}}// 周期性通知Futurevoid scheduleNotification({required int id,required String title,required String body,}) async {const AndroidNotificationDetails androidNotificationDetails AndroidNotificationDetails(your.channel.id, your channel name,channelDescription: your channel description,importance: Importance.max,priority: Priority.high,ticker: ticker);// ios的通知const String darwinNotificationCategoryPlain plainCategory;const DarwinNotificationDetails iosNotificationDetails DarwinNotificationDetails(categoryIdentifier: darwinNotificationCategoryPlain, // 通知分类);// 创建跨平台通知const NotificationDetails platformChannelSpecifics NotificationDetails(android: androidNotificationDetails, iOS: iosNotificationDetails);
// 发起通知await _notificationsPlugin.periodicallyShow(id, title, body, RepeatInterval.everyMinute, platformChannelSpecifics);}// 定时通知Futurevoid zonedScheduleNotification({required int id,required String title,required String body,required DateTime scheduledDateTime}) async {const AndroidNotificationDetails androidNotificationDetails AndroidNotificationDetails(10001, 唤醒,channelDescription: your channel description,importance: Importance.max,priority: Priority.high,ticker: ticker);// ios的通知const String darwinNotificationCategoryPlain plainCategory;const DarwinNotificationDetails iosNotificationDetails DarwinNotificationDetails(categoryIdentifier: darwinNotificationCategoryPlain, // 通知分类);// 创建跨平台通知const NotificationDetails platformChannelSpecifics NotificationDetails(android: androidNotificationDetails, iOS: iosNotificationDetails);// 获取本地时区final location tz.getLocation(tz.local.name);// 发起通知_notificationsPlugin.zonedSchedule(id, title, body,TZDateTime.from(scheduledDateTime, location), // 使用本地时区的时间platformChannelSpecifics,uiLocalNotificationDateInterpretation:UILocalNotificationDateInterpretation.wallClockTime, // 设置通知的触发时间是觉得时间);}/// 取消全部通知cancelAll(){_notificationsPlugin.cancelAll();}/// 取消对应ID的通知cancelId(int id){_notificationsPlugin.cancel(id);}
}使用步骤
0.请求通知权限 android manifest.xml
uses-permission android:namecom.android.alarm.permission.SET_ALARM/
uses-permission android:nameandroid.permission.SCHEDULE_EXACT_ALARM /ios Info.plist
keyNSUserNotificationAlertIdentifier/key
string我们需要您的许可来发送通知/string
keyNSUserNotificationAlertTitle/key
string请求通知权限/string
keyNSUserNotificationAlertBody/key
string我们希望能够在您允许的情况下发送通知。/string使用之前一定要代码里边获取通知权限
NotificationHelper.getInstance().requestNotificationPermissions();1.初始化
NotificationHelper.getInstance().initialize();2.使用
NotificationHelper.getInstance().zonedScheduleNotification(id: 10001, title: 科学研究, body: 研究开始了, scheduledDateTime: DateUtilss.getNowDateMs15or25DateTime(15));
