Flutter_local_notifications: Custom intervals for periodicallyShow

[Zil85]

Are there any thoughts on adding custom intervals for showing repeating notifications?

Currently it supports the repeat intervals (EveryMinute, Hourly, Daily, Weekly).

But for my case I would be interested in having the users select the interval themselves.

Without going to much into the businesslogic.
Basically the user sets a reminder and chooses a time interval e.g. every 5min, 20min, 1.5hours, etc.
It would most likely always be in the range of 5min - 4hours.

[MaikuB]

Have been thinking about it. The reason why it's not there was that there are devs that are also targeting iOS 8 and 9 and custom intervals like that aren't supported. However, the fraction of devices on those versions are very small so that's why I'm considering this ATM. This will mean it will be a function (possibly an overload) that only works for Android and iOS 10+ so will need to be clearly documented

[mccadi]

+1 ...I would need this as well! Hoping to set intervals in terms of every week, every other week, every three weeks, every four weeks...

[MaikuB]

I have seen your fork and I'm always open to look at a PR :)

[mccadi]

I did, I just tried changing the static values for minute, hour, week, etc but I am not quite sure if this will work or repeat properly until testing, but iOS notifications seem to work. Also having trouble with android getting notifications to show reliably atm...currently a work in progress

[LSmint]

Is it possible to combine every other week with specific weekday (e.g.: Monday and Friday)?

[cesarureno]

Any updates?

[MaikuB]

@cesarureno I'm actually looking to close this now as no one has looked into contributing a PR despite how long this issue has been around. I would say if you're after this feature that you look into implementing yourself and submit a PR if possible

[cesarureno]

Oh, I see @MaikuB I will start to try make some awesome, thanks for your time and your package

[Bryanx]

Maybe you can do this by combining this package with flutter_background_fetch.

• Just use schedule() to schedule the first notification and store the required interval and starttime in sqlite or shared prefs.
• Create a headless task with flutter_background_fetch that runs in the background every 15 minutes.
• Make the task check if the notification has been sent.
• If it has not been sent schedule a new one based on the starttime + interval of the last notification.

Unfortunately the interval has to be > 15min and checking every 15 min will cost some battery.

[chriswiesner]

I want to be able to schedule a notification for e.g. each 3rd Thursday 18:00 - this is currently not possible.
I can set that target date once with schedule but I want it to happen periodically.
There is no callback when the notification is actually shown, right? With that, I could schedule the next occurrence.

[tindalida]

I'm also looking into 15-30 mins notification interval! I hope this change gets in

[britannio]

@MaikuB It's been over 2 years and IOS 8/9 are less relevant. Maybe this should be reconsidered?

[MaikuB]

@britannio if you had followed the discussions above then you should see that I said for others to submit a PR for this. Sounds like you need this perhaps you could look into doing so

[mapadj]

Hey!
Maybe it would be cool to just take a Duration Object instead of the DateTimeComponent.

Or maybe it is possible to use a notificationShownCallback to schedule the next one.

[M123-dev]

I have read that this should be taken over by the community, but I still have a suggestion,
It may be easier to implement when sticking to the current structure and just expand it a little.

1. Add the possibility of a specification. I mean something like:

daily.at (12.30,000)
weekly.at (Monday, Friday)

1. For a wider spectrum, maybe add monthly and yearly.

[vanessabin]

I'm also interested in custom scheduled intervals, so that I have one unique ID for one notification and it is pushed e.g. every 3 hours. Specifying a start and end time would also be cool, so that you can program medication reminder apps, for example. I'm still pretty new to Flutter and don't know every source of information. If there are other ways to do this, I would appreciate any tips.

[Lone-Wolf17]

Maybe you can do this by combining this package with flutter_background_fetch.

• Just use schedule() to schedule the first notification and store the required interval and starttime in sqlite or shared prefs.
• Create a headless task with flutter_background_fetch that runs in the background every 15 minutes.
• Make the task check if the notification has been sent.
• If it has not been sent schedule a new one based on the starttime + interval of the last notification.

Unfortunately the interval has to be > 15min and checking every 15 min will cost some battery.

Hello @MaikuB . Please how does one make the task check if the notification has been sent