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.
