SwiftUI LiveActivities on start throw weird errors - ios

Question

So, I trying to work with ActivityKit, to create a simple live activity.
Code:
TimerAttributes.swift
import ActivityKit
import SwiftUI
struct TimerAttributes: ActivityAttributes {
public typealias TimerStatus = ContentState
public struct ContentState: Codable, Hashable {
var endTime: Date
}
var timerName: String
}
Widget
import ActivityKit
import WidgetKit
import SwiftUI
struct TimerActivityView: View {
let context: ActivityViewContext<TimerAttributes>
var body: some View {
VStack {
Text(context.attributes.timerName)
.font(.headline)
Text(context.state.endTime, style: .timer)
}
.padding(.horizontal)
}
}
#main
struct Tutorial_Widget: Widget {
let kind: String = "Tutorial_Widget"
var body: some WidgetConfiguration {
ActivityConfiguration(for: TimerAttributes.self) { context in
TimerActivityView(context: context)
} dynamicIsland: { context in
DynamicIsland {
DynamicIslandExpandedRegion(.leading) {
// 2
}
DynamicIslandExpandedRegion(.trailing) {
// 2
}
DynamicIslandExpandedRegion(.center) {
// 2
}
DynamicIslandExpandedRegion(.bottom) {
// 2
}
} compactLeading: {
// 3
} compactTrailing: {
// 3
} minimal: {
// 4
}
}
}
}
MainView.swift
import ActivityKit
import SwiftUI
struct MainView{
#State private var activity: Activity<TimerAttributes>? = nil
}
extension MainView: View {
var body: some View {
VStack(spacing: 16) {
Button("Start Activity") {
startActivity()
}
Button("Stop Activity") {
stopActivity()
}
}
.buttonStyle(.borderedProminent)
.controlSize(.large)
}
func startActivity() {
let attributes = TimerAttributes(timerName: "Dummy Timer")
let state = TimerAttributes.TimerStatus(endTime: Date().addingTimeInterval(60 * 5))
do{
activity = try Activity.request(attributes: attributes, contentState: state)
}
catch (let error) {
print("")
print("$$$$$$$$$$")
print(error.localizedDescription)
print(error)
print(error.self)
print("$$$$$$$$$$")
print("")
}
}
func stopActivity() {
let state = TimerAttributes.TimerStatus(endTime: .now)
Task {
await activity?.end(using: state, dismissalPolicy: .immediate)
}
}
func updateActivity() {
let state = TimerAttributes.TimerStatus(endTime: Date().addingTimeInterval(60 * 10))
Task {
await activity?.update(using: state)
}
}
}
It's looks fine, but it doesn't work at all.
I'm using a widget as new target to my main App.
I'm set NSSupportsLiveActivities to YES in both Info.plist.
What I get all time after pressing the button to start activity:
Any suggestions?

Answer 1

I Found a Solution.
You need to Update your Xcode to version 14.1, and recreate your widget, you will find out that checkbox 'Live Activities' on create phase appears, and give you a possibility to create Live Activities.