Setting repeatable notifications on a specific day?

[srowe0091]

Hello, this is more of a question, than bug as I'm not sure if I have implemented it wrong or need to supply more details in the notification schedule. I am trying to setup a local notification that starts triggering on a specific day, and repeats every 2 weeks, and an added touch will be to set a specific time, so the notification does not go off at 12:00am on the given day.

my environment

  @capacitor/ios not installed
  @capacitor/electron not installed
  @capacitor/core 2.0.1
  @capacitor/android 2.0.1
  @capacitor/cli 2.0.1

I had put this to start

LocalNotifications.schedule({
    notifications: [
      {
        title: "Title",
        body: "Body",
        id: 1,
        schedule: {
          repeats: true,
          every: 'two-weeks',
          on: {
            day: 14
          }
        },
        actionTypeId: "",
        extra: null
      }
    ]
  })

and it worked when i manually set the phone to skip 2 weeks in the future, a couple seconds later the notification appeared. But when I tried adding the hour property in the on it never triggered

LocalNotifications.schedule({
    notifications: [
      {
        title: "Title",
        body: "Body",
        id: 1,
        schedule: {
          repeats: true,
          every: 'two-weeks',
          on: {
            day: 14,
            hour: 10
          }
        },
        actionTypeId: "",
        extra: null
      }
    ]
  })

So i want the notification to start on the day that i set, for example if today is the 12th, and the date applied is the 15th, i want it to repeat every 2 weeks from the 15th. and setting the time for hour 10AM. Am i missing something with how i tried adding the hour prop?

sidenote: is the hour property in 12hr format or 24hr format?

Edit: some more findings, since today is day 12, i had set the notification with

on: {
   day: 15
}

and i set the phones date to the 15th, no trigger. i set it for 2 weeks after 15 (day 29) and it still did not trigger. Suspiciously I tried setting the phones date to 2 weeks after the 12th (day 24), when the notification was created, and the notification WAS triggered. Also oddly enough the time of the phone was set to the morning on day 24 and it didn't trigger, as it only triggered after 4pm, because that was when i initially created the notification. it seems like the creation of the notification schedule is ignoring the on prop entirely

[dotrub]

I have been struggling with a similar issue lately. The case I have is even simpler; I want a daily repeating reminder at a time set by the user. I should be able to use on, and I do for iOS, but can't on Android because of this bug.

I can answer some of your questions, though. Unfortunately, the best place by far to figure out how LocalNotifications are working is in the source code; the documentation is often inaccurate and provides relatively little info. In the source code, you can see that the schedule options are processed like this:

if (at) {
  if (repeats === true) {
    // calculate time between 'now' and 'at'
    // return repeating 'at'-style reminder, starting at 'at' and repeating at the interval calculated
  } else {
    // return 'at'-style reminder (one occurrence)
  }
} else if (every) {
  // return 'every'-style reminder
} else if (on) {
  // return 'on'-style reminder
}

So if you provide at, it will ignore anything you provide for every or on. In your case, since you provide every, it will ignore on. The options do not work in conjunction with one another. And repeats only applies to the at case, and is applied in a way that frankly makes no sense to me; I can't think of any realistic scenario where that repeating behaviour would be useful.

I tried to implement something like this by scheduling one reminder with at and some data in extra, intending to use the localNotificationReceived listener to then schedule a repeating reminder with every from the moment the notification triggered. But upon searching the source code, it appears that there is no implementation for localNotificationReceived, at least on Android! Why is it in the docs?! Why isn't it implemented?!

So I'm stumped. I can't think of a reasonable and robust way to accomplish what seems like the simplest base case usage of repeating reminders.

[elnezah]

Nice, thanks. Just to share my opinion, I cannot also think on a good scenario for every since there is no starting point. So you'll have a notification every week at the time the user activated it? What is this good for?

[danielmalmros]

@dotrub Thanks for the clarification! I have been struggling with this issue for days now. But nothing seems to work for me. I can see this issue is a year old, but still it's hard to figure out how to schedule simple reminders from the docs. Did you manage to come up with a solution? In our use case we need to remind the user every day based on time set by user.

I have tried to use only on but it dose not repeat but instead only appear once.

await LocalNotifications.schedule({
  notifications: [
    {
      title: "Title",
      body: "Body text",
      id: uniqueId,
      schedule: {
        on: { hour, minute },
      },
    },
  ],
});

[slevy85]

I have the same issue, I think a way that could be implemented is like this :

schedule: {
          on: {
            dayofweek: 1, // from 0 to 6, 0 is sunday
            hour: 10,
            minute: 30
          }
        },

This would trigger the notification every monday at 10:30, but dayofweek is not supported.

[divinetouch]

I'm having the same issue on Android. I've tried daily, weekly, monthly, and yearly, none of them is working for me.

In my case, I also specify the hour and minute in the schedule property.

[littke]

Agree with @slevy85, the dayofweek is what's missing here. Then on would work for this use case.

Should be simple enough to implement, as DateComponents for iOS already supports weekday.

[danielrf121]

Good Morning. From what I understand from this discussion, I can't use repetition by setting a specific date and time.

Today I need to repeat reminders, for example, every day at 7 am, to take a medication and this is not possible.

I believe that the repeat setting only makes sense if we set a date and time.

But anyway, reading this thread clarified a lot for me, in these 4 days that I am racking my brains with the use of this plugin.

[weblaunch]

So I've spent an afternoon trying to implement a reminder that goes off at X o'clock every weekday. Seems it just can't be done and really I'd expect it to be possible :-/

[daveshirman]

I gave up and just did it this way:

https://www.codingandclimbing.co.uk/blog/android-localnotifications-with-cordova-capacitor-example

[rtpHarry]

FYI, I know this is an old post but I was just doing research on this for an upcoming project. I had this saved as a possible solution, but it seems that these scheduling issues have been fixed now in ionic-team/capacitor-plugins#756

[kim-jos]

I was having the same issue and decided to have a look into the Java files for Android and was able to come up with a solution.

For those who are still looking for a solution to this problem, you can now implement the weekday feature using the on keyword (0 - 6) (Sun - Sat) once you copy and paste it into your project if you need it. ionic-team/capacitor-plugins#601

I made a pull request but I am still waiting for it to get merged.