DeviceActivity setup

Question

cmj OP

Created Jun ’22

Replies 2

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Hi!

I'm playing around with the Screen Time API. I would like to let my app notify me every time I have used my device for 1 minute (any app). When I have been notified, I would like to reset the monitoring so that I will be notified again after another minute using my device.

I'm not sure how to accomplish this. In the main app, I currently start monitoring the following event with a schedule:

let event = DeviceActivityEvent(threshold: DateComponents(minute: 1))

let schedule = DeviceActivitySchedule(intervalStart: DateComponents(hour: 0, minute: 0, second: 1), intervalEnd: DateComponents(hour:23, minute: 59, second: 59), repeats: true)

Then, in the Device Activity Monitor Extension, I restart the same monitoring once the threshold is reached in eventDidReachThreshold.

However, eventDidReachThreshold is being called much more than once an hour. I have checked that I only have one monitoring event running, so duplicates does not seem to be a problem. So, my questions are:

Does my approach look OK? What am I missing?
Would this monitoring collect usage from all devices connected to the same Apple ID, i.e. my Mac, iPad, iPhones etc? If so, how can I make it only monitor usage on one of my devices (the iPhone running the app)?

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Answer 1

OP

Apple

Jun ’22

However, eventDidReachThreshold is being called much more than once an hour.

This may be because you set your threshold to 1 minute in the line let event = DeviceActivityEvent(threshold: DateComponents(minute: 1)). Are you using the device for longer than a minute in any given hour?

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Answer 2

Cairo3 OP

Jun ’22

Hi, I'm struggling to get anything to be called on the extension once a given threshold is reached. Would you be able to share your code for that? I'm specifically how you were able to get your extension to execute after an event.

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