I use DeviceActivityCenter to monitor app usage. For DeviceActivityEvent, I set 30 events, and the threshold of each event increases by 2 minutes: var events: [DeviceActivityEvent.Name: DeviceActivityEvent] = [:] for index in 0..<30 { let threshold = (index == 29) ? DateComponents(hour: 1) : DateComponents(minute: (index + 1) * 2) let name = DeviceActivityEvent.Name("\(prefix)|\(index)") events[name] = DeviceActivityEvent(applications: tokens, threshold: threshold) } After reaching the last DeviceActivityEvent, I will restart directly in DeviceActivityMonitor private func restartMonitoring(activity: DeviceActivityName) { let center = DeviceActivityCenter() let currentEvents = center.events(for: activity) do { try center.startMonitoring(activity, during: schedule, events: currentEvents) } catch { print("Fail: \(error)") } } But I found that after restarting, DeviceActivityEvent will be automatically executed even if I don't use the app. My iOS version is 18.5

I have developed three apps using the Screen Time API. The following are common problems I encountered in the three apps: DeviceActivityMonitorExtension is automatically killed after running for a few days (frequently) The same DeviceActivityEvent in DeviceActivityMonitorExtension is triggered twice during eventDidReachThreshold (especially obvious in iOS18.5) Screen Time authorization is automatically canceled for no reason (occasionally) I hope to get help

I found that in iOS 18.5, DeviceActivityCenter startMonitoring cannot start multiple monitors, even if their names and periods are different, and restarting the phone cannot solve it. My app uses DeviceActivityCenter, which makes the entire function unusable. (I have less than 20 monitors)

I started monitoring using the following code: deviceActivityCenter.startMonitoring( DeviceActivityName(name), during: makeDailySchedule(), events: events ) Where: DeviceActivitySchedule( intervalStart: DateComponents(hour: 0, minute: 0), intervalEnd: DateComponents(hour: 23, minute: 59), repeats: true, warningTime: nil ) In DeviceActivityMonitor, I read and write data using UserDefaults and keep the logic minimal to ensure the size does not exceed 6MB. However, after a period of time, monitoring continues to fail. Why is this happening? How can I resolve this issue?

Hi everyone, I am encountering an issue where my Live Activity (Dynamic Island) suddenly became invalid and failed to launch. It was working perfectly before, and I haven't modified any code since then. My Environment: Xcode: 26.1.1 Device iOS: 26.1 Testing: I also tested on iOS 18, but the Live Activity fails to start there as well. Here is my code: Live Activity Manager (Start/Update/End): func startLiveActivity() { // Initial static data let attributes = SimpleIslandAttributes(name: "Test Order") // Initial dynamic data let initialContentState = SimpleIslandState(message: "Preparing...") // Adapting for iOS 16.2+ new API (Content) let activityContent = ActivityContent(state: initialContentState, staleDate: nil) do { let activity = try Activity.request( attributes: attributes, content: activityContent, pushType: nil // Set to nil as remote push updates are not needed ) print("Live Activity Started ID: \(activity.id)") } catch { print("Failed to start: \(error.localizedDescription)") } } // 2. Update Live Activity func updateLiveActivity() { Task { let updatedState = SimpleIslandState(message: "Delivering 🚀") let updatedContent = ActivityContent(state: updatedState, staleDate: nil) // Iterate through all active Activities and update them for activity in Activity<SimpleIslandAttributes>.activities { await activity.update(updatedContent) print("Update") } } } // 3. End Live Activity func endLiveActivity() { Task { let finalState = SimpleIslandState(message: "Delivered ✅") let finalContent = ActivityContent(state: finalState, staleDate: nil) for activity in Activity<SimpleIslandAttributes>.activities { // dismissalPolicy: .default (immediate), .after(...) (delayed), .immediate (no animation) await activity.end(finalContent, dismissalPolicy: .default) print("End") } } } The Models (Shared between App and Widget Extension): // 1. Define State (Dynamic data, changes over time, e.g., remaining delivery time) public struct SimpleIslandState: Codable, Hashable { var message: String } // 2. Define Attributes (Static data, constant after start, e.g., Order ID) public struct SimpleIslandAttributes: ActivityAttributes { public typealias ContentState = SimpleIslandState var name: String // e.g., "My Order" } The Widget Code: // // SimpleIslandWidget.swift // ReadyGo // // Created by Tang Yu on 2025/11/19. // import WidgetKit import SwiftUI import ActivityKit struct SimpleIslandWidget: Widget { var body: some WidgetConfiguration { ActivityConfiguration(for: SimpleIslandAttributes.self) { context in // UI shown on the Lock Screen VStack { Text("Lock Screen Notification: \(context.state.message)") } .activityBackgroundTint(Color.cyan) .activitySystemActionForegroundColor(Color.black) } dynamicIsland: { context in // Inside Widget Extension DynamicIsland { // Expanded Region DynamicIslandExpandedRegion(.center) { Text("Test") // Pure text only } } compactLeading: { Text("L") // Pure text only } compactTrailing: { Text("R") // Pure text only } minimal: { Text("M") // Pure text only } } } } Additional Info: This is the minimal code setup I created for testing, but even this basic version is failing. I have set NSSupportsLiveActivities (Supports Live Activities) to YES (true) in the Info.plist for both the Main App and the Widget Extension. Has anyone experienced this? Any help would be appreciated.

I’m manipulating some data inside a widget extension, and at the same time there is an active Live Activity (Dynamic Island / Lock Screen). How can I update the Live Activity’s local notification when the data changes? I tried accessing the current activity using Activity.activities, but it seems that this API is not accessible from inside the widget extension. What is the correct way to refresh or update the Live Activity in this case?