flutter - Flutter 在指定的时间范围内创建多个每周本地通知

问题描述

对于我即将推出的健身应用程序，用户应该能够在周一和周日之间选择多天，选择应该显示通知的小时数和周数。例如：我选择星期四和星期五，下午 2 点和 6 周。所以我应该在周四和周五下午 2 点看到通知，持续 6 周。

我正在使用“flutter_local_notifications 0.8.3”插件，但它似乎没有我需要的功能，如果您知道像我上面写的那样显示通知的任何不同方法，请随时告诉我。

编辑：

我用for循环设置的预定通知的代码。但这并不是真正的解决方案

Future<void> scheduleNotification(int id,{int, days,int hour, int minute, int second}) async {
  var scheduledNotificationDateTime =
  DateTime.now().add(Duration(days: days));
  var vibrationPattern = Int64List(4);
  vibrationPattern[0] = 0;
  vibrationPattern[1] = 1000;
  vibrationPattern[2] = 5000;
  vibrationPattern[3] = 2000;

  var androidPlatformChannelSpecifics = AndroidNotificationDetails(
      'your other channel id',
      'your other channel name',
      'your other channel description',
      icon: 'app_icon',
      largeIcon: 'app_icon',
      largeIconBitmapSource: BitmapSource.Drawable,
      vibrationPattern: vibrationPattern,
      enableLights: true,
      color: const Color.fromARGB(255, 255, 0, 0),
      ledColor: const Color.fromARGB(255, 255, 0, 0),
      ledOnMs: 1000,
      ledOffMs: 500);
  var iOSPlatformChannelSpecifics =
  IOSNotificationDetails(sound: "slow_spring_board.aiff");
  var platformChannelSpecifics = NotificationDetails(
      androidPlatformChannelSpecifics, iOSPlatformChannelSpecifics);
  await flutterLocalNotificationsPlugin.schedule(
      id,
      'scheduled title',
      'scheduled body',
      scheduledNotificationDateTime,
      platformChannelSpecifics);
}

每周通知代码

var androidPlatformChannelSpecifics = AndroidNotificationDetails(
      'show weekly channel id',
      'show weekly channel name',
      'show weekly description');
  var iOSPlatformChannelSpecifics = IOSNotificationDetails();
  var platformChannelSpecifics = NotificationDetails(
      androidPlatformChannelSpecifics, iOSPlatformChannelSpecifics);
  await flutterLocalNotificationsPlugin.showWeeklyAtDayAndTime(
      0,
      title,
      'Weekly notification shown on Monday at approximately ${_toTwoDigitString(time.hour)}:${_toTwoDigitString(time.minute)}:${_toTwoDigitString(time.second)}',
      Day.values[value],
      time,
      platformChannelSpecifics);
}

给定的问题是我不知道如何在 x 周后停止每周通知

此代码来自插件本身，让您了解该功能的工作原理。我可以指定日期、时间和重复间隔，但不能指定通知应该激活多长时间。

 /// Shows a notification on a daily interval at the specified time
  Future<void> showWeeklyAtDayAndTime(int id, String title, String body,
      Day day, Time notificationTime, NotificationDetails notificationDetails,
      {String payload}) async {
    _validateId(id);
    var serializedPlatformSpecifics =
        _retrievePlatformSpecificNotificationDetails(notificationDetails);
    await _channel.invokeMethod('showWeeklyAtDayAndTime', <String, dynamic>{
      'id': id,
      'title': title,
      'body': body,
      'calledAt': DateTime.now().millisecondsSinceEpoch,
      'repeatInterval': RepeatInterval.Weekly.index,
      'repeatTime': notificationTime.toMap(),
      'day': day.value,
      'platformSpecifics': serializedPlatformSpecifics,
      'payload': payload ?? ''
    });
  }

编辑：代码片段

 Future<void> scheduleActivityList() async {
    for (int i = 0; i < _savedActivityList.length; i++) {
      if ((_savedActivityList[i].startDate
          .difference(DateTime.now())
          .inMinutes <= 10080) && (_savedActivityList[i].scheduled == false)) {
        _savedActivityList[i].scheduled = true;
        scheduleNotification(await _getNextAvailableId(),_savedActivityList[i].startDate
            .difference(DateTime.now())
            .inMinutes, _savedActivityList[i].title);


        if (_savedActivityList[i].startDate  /// deletes past notification
            .difference(DateTime.now())
            .inMinutes <= 0){
          _savedActivityList.removeAt(i);
        }
      }
      await saveActivityList();
    }
  }

标签： flutterlocalnotification

flutter - Flutter 在指定的时间范围内创建多个每周本地通知

问题描述

解决方案

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