使用flutter_local_notification包显示预定通知，通过使用自定义声音，但我希望用户从列表中选择铃声，在iOS上它工作正常，但在Android端，如果选择了新铃声，它将播放旧铃声。

addnotification(DateTime time, int id, String? ringtone) {
    log('$ringtone', name: 'notification ringtone');
    tzData.initializeTimeZones();
    log(tz.local.toString(), name: 'time zone');
    final scheduleTime = tz.TZDateTime.from(time, tz.local);

    NotificationDetails notificationDetails = NotificationDetails(
        android: AndroidNotificationDetails(
          'mychannel2',
          'alarm',
          // const UriAndroidNotificationSound(
          //     'assets/ringtones/alarm.mp3'), //
          sound: RawResourceAndroidNotificationSound('$ringtone'),
          importance: Importance.max,
          priority: Priority.high,
          // autoCancel: false,
          // timeoutAfter: 10000,

          // vibrationPattern: Int64List(5),
          // category: AndroidNotificationCategory.alarm,
          enableLights: true,
          fullScreenIntent: true,
          enableVibration: true,
          audioAttributesUsage: AudioAttributesUsage.alarm,
          visibility: NotificationVisibility.public,
          playSound: true,
        ),
        iOS: DarwinNotificationDetails(
            presentSound: true, sound: '$ringtone.wav'));

    _localNotificationsPlugin.zonedSchedule(id, 'Morning Alarm',
        'wake up the alarm is ringing...', scheduleTime, notificationDetails,
        uiLocalNotificationDateInterpretation:
            UILocalNotificationDateInterpretation.absoluteTime,
        androidAllowWhileIdle: true,
        matchDateTimeComponents: DateTimeComponents.time);

    // _localNotificationsPlugin.show(id, 'alarm', 'alarm', notificationDetails);
  }