App should lock the screen if no activity from a user for 10 minutes

[Zagor Te Nej]

I got the requirement to "lock my mobile app if there is no activity from a user for 10 minutes". It means if the user doesn't do anything for 10 minutes after his/her last activity then I should popup a lock screen asking the user to enter a PIN in order to unlock and continue. How can I do it?

I found something similar here under "How do I create a time-based Flutter App?" but I already use GestureDetector(s) inside my app and I don't expect this proposal to work. 

Please help.

[Suzuki Tomohiro]

Do you know how to show lock screen?

Do you know how to count 10 minutes?

Do you know how to reset the timer when a user interacts your app?

--
You received this message because you are subscribed to the Google Groups "Flutter Development (flutter-dev)" group.
To unsubscribe from this group and stop receiving emails from it, send an email to flutter-dev...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/flutter-dev/cc48c08c-4b6d-43a6-841f-e337664d7ee1n%40googlegroups.com.

[Zagor Te Nej]

Q: Do you know how to show lock screen?

A: Yes, I already have the lock screen done.

Q: Do you know how to count 10 minutes?

A: Yes and no. The problem here is to save the date/time of the last user activity. Actually, I have to update dateTimeOfLastActivity every time when a user does something (key stroke, scrolling, navigation, etc.) and that's where the problem is.

A: Do you know how to reset the timer when a user interacts your app?

Q: As I said above, yes and no. It depends. I can do something like here

await Future.delayed(Duration(minutes: 10), () {
// popup the lock screen

});

but the problem is how to detect all the users activities.

[Suzuki Tomohiro]

Found CountdownTimer and RestartableTimer in 

https://stackoverflow.com/questions/56465770/flutter-restart-countdowntimer

Can you try that?

> How to detect all user activity

I’m afraid that don’t know.

To view this discussion on the web visit https://groups.google.com/d/msgid/flutter-dev/0ea53d58-3319-4d66-8982-a69743373601n%40googlegroups.com.