DeviceActivityMonitor

I'm using the Screen Time API to shield apps the user selects. The problem is, that the apps are always shielded, even outside of the schedule. Here is my function initiateMonitoring: func initiateMonitoring(scheduleStart: DateComponents, scheduleEnd: DateComponents) { let schedule = DeviceActivitySchedule( intervalStart: scheduleStart, intervalEnd: scheduleEnd, repeats: true ) let center = DeviceActivityCenter() do { try center.startMonitoring(.daily, during: schedule) logger.log(STARTED MONITORING) } catch { logger.log(FAILED MONITORING: (error.localizedDescription)) } } The expected result should be that the selected Apps should be blocked during the schedule the user specified, but not outside the schedule, but it is blocked 24/7. I've experimented with the DateComponents, but the issue may be somewhere else. What's maybe interesting is, I tried Logging the DeviceActivityMonitor and somehow it doesn't get called. The logging-output from initiateMonitoring is printed in the console, but for the DeviceActivityMonitor

Hello! I am using the eventDidReachThreshold callback in the DeviceActivityMonitor in order to shield a target app after the user has spend x amount of time on it (e.g. x = 5 minutes). Many times this works fine, and I can trigger my shield after the specified threshold has been met. However sometimes, when they leave the target app before the threshold has been reached, the eventDidReachThreshold callback gets called randomly while they are doing something else on their phone (e.g. using a different app, on the Home Screen, phone locked…). From my perspective this does not make sense, since they are not actively spending time on the target app, and that time should not be counted towards the target app’s threshold. And it is also very confusing for the users because they will then find a blocked target app even though they haven’t used their time budget completely. This is not related to the intervalDidStart / intervalDidEnd callbacks, because they are not correlating with the timing of when the eve

I am currently debugging an issue with DeviceActivityMonitor where the threshold is reached even though the target app (e.g. Instagram) is not being used actively. I noticed that the device with the unexpected behavior had the instagram.com website opened in the Safari web browser (among hundreds of other tabs). That tab was not actively used either (not in foreground, Safari app neither used). However, I was wondering if it can happen that this website is contributing towards the threshold as well even though it is in background and not used? Otherwise I cannot explain myself this strange behavior.

I've been working with the Screen Time API for almost 6 months now. I found out it's completely unreliable, testing on iOS 17.4, the DeviceActivityReport is not showing, the DeviceActivityMonitor more often than not does not fire intervalDidStart. It's very frustrating. Has anyone found out a workaround? We all know there has to be something we're doing wrong, since apps like Opal and Jono does not present those types of issues. Let's please unite our forces and find a solution. How to use this API should not be a secret!

I am using the DeviceActivityMonitor eventDidReachThreshold functionality, but it became very unreliable on the iOS 17.5 beta. Anyone experiencing similar problems? Any known workarounds?

I am new to swift. This is my first app. What an i doing wrong. Device activity monitor extension is never being called. When i launch the app, I am able to pick the discouraged and encouraged apps. It immediately restrict the discouraged app which is expected. But the extension is never called. import SwiftUI import FamilyControls import ManagedSettings @main struct GetALifeApp: App { @UIApplicationDelegateAdaptor(AppDelegate.self) private var appDelegate @StateObject var model = MyModel.shared @StateObject var store = ManagedSettingsStore() var body: some Scene { WindowGroup { ContentView() .environmentObject(model) .environmentObject(store) } } } class AppDelegate: NSObject, UIApplicationDelegate { func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? = nil) -> Bool { initiateAsyncSetup() return true } private func initiateAsyncSetup() { Task { do { try await AuthorizationCenter.shared.requestAuthorization(for: .individual) MyS

I added debug break point to the first line of MyDeviceActivityMonitor.swift, it never got trigger. I am able to launch the app, select discouraged and encouraged app. discouraged apps are getting restricted which is expected. but device activity extension is never called. I have all the permission and certificate. I created an app group. import SwiftUI import FamilyControls import ManagedSettings @main struct GetALifeApp: App { @UIApplicationDelegateAdaptor(AppDelegate.self) private var appDelegate @StateObject var model = MyModel.shared @StateObject var store = ManagedSettingsStore() var body: some Scene { WindowGroup { ContentView() .environmentObject(model) .environmentObject(store) } } } class AppDelegate: NSObject, UIApplicationDelegate { func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? = nil) -> Bool { initiateAsyncSetup() MySchedule.setSchedule() return true } private func initiateAsyncSetup() { Task { do { try await

We are using the Apple ScreenTime API for monitoring the usage of device. As mentioned in the documentation (https://developer.apple.com/documentation/familycontrols), we are getting the family controls authorisation from the user. We also have added the ‘DeviceActivityMonitor’ app extension (https://developer.apple.com/documentation/deviceactivity/deviceactivitymonitor) to receive the schedule and event callbacks. We have a requirement in which we have to notify the user for every 15 minutes usage of the device in the specified interval. He can optionally select individual categories or applications for the 15 minutes notification. For monitoring the usage for individual categories or applications, we obtain the token by presenting the FamilyActivityPicker as discussed in this documentation https://developer.apple.com/documentation/familycontrols/familyactivitypicker. For simplicity in testing during the development phase, we reduced the 15 minutes to 2 minutes. The events callbacks are exp

The listening callbacks were not triggered for intervalDidStart and intervalDidEnd after successfully starting center.startMonitoring when I attempted to set a schedule with DeviceActivitySchedule at 20-minute intervals Is there anyone who can assist me? Thank you. Below you will find my code. let intervalLengthInSeconds = 20 * 60 let intervalEnd = Date(timeIntervalSinceNow: TimeInterval(intervalLengthInSeconds)) let intervalStart = Date() let schedule = DeviceActivitySchedule(intervalStart: Calendar.current.dateComponents([.hour, .minute], from: intervalStart), intervalEnd: Calendar.current.dateComponents([.hour, .minute], from: intervalEnd), repeats: false, warningTime: DateComponents(minute: 1)) let newActivity = DeviceActivityName(rawValue: 20minuteUse) Log(😯 (String(describing: schedule.nextInterval))) do { try center.startMonitoring(newActivity, during: schedule) } catch { print(failed to start session: (error.localizedDescription)) } class MyMonitorExtension: DeviceActivityMonitor { let store

Hi everyone, I am a beginner in Swift and I am currently using DeviceActivityMonitor to develop an app for parents to control their children's app usage time. During the development process, I found that the DeviceActivityMonitor has a 6MB memory limit in the background, and my app exceeds this limit after running for a long time. I would like to know how to reduce the memory usage of DeviceActivityMonitor in the background, or where I can check the memory usage of DeviceActivityMonitor and see which variables are consuming memory. Additionally, I want to know if a new instance of the DeviceActivityMonitor class is created every time it is called? Thank you for your help!

Hi there, My app uses all the Screen Time API's with individual FamilyControls authorization. I've been using the API's for over 2 years (since they came out). In iOS 18 Beta (maybe started in Beta 3?), I've been experiencing random issues. I tracked it down to where it seems like DeviceActivityMonitor extension is more likely to deadlock in iOS 18. To reproduce: when DeviceActivityMonitorExtension.intervalDidEnd gets called, IF you call DeviceActivityCenter.startMonitoring for that SAME DeviceActivityName from the DeviceActivityMonitorExtension , the startMonitoring call deadlocks (if I pause debugger, it does not advance past DeviceActivityCenter.startMonitoring). The bug is reported in FB14664238. It also contains a sample project where you can reproduce this. I also note in the comment section that this is not the only way to encounter this problem. My application code (which is a lot more complicated) seems to deadlock on calling DeviceActivityCenter.activities. As a result, there seems to be an

Hello! I'm trying to build an app that incorporates the screentime API using a DeviceActivityMonitor extension. I've found a couple public repo's accomplishing what I'm trying to make. When cloning, editing identifiers and app groups, I keep getting this error message when trying to execute the DeviceActivityMonitorExtension Error: Error Domain=UsageTrackingErrorDomain Code=101 Failed to fetch a usage budget UserInfo={NSLocalizedDescription=Failed to fetch a usage budget, NSLocalizedRecoverySuggestion=See Console for additional details.} In mac console it does not show further details, just the same error message lol. This happens on my app as well that was built from scratch under my own identifiers etc. It only occurs when trying to make a call to the extension. I believe my PLists and entitlements are properly setup but I still get this error. The screentime API has been out for a while now and I can't seem to find an answer to my question. I've been trying to battle this for weeks now does anyone