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Hello There!,
I'm currently working on an App with an implemented timer. It was initially planned, that the User will get a notification when the timer ends. Everything works fine until the timer ends and the phone doesn't gets any notification...
This is my code:
import SwiftUI
import Combine
import UserNotifications
struct TimerView: View {
@State private var timeRemaining: TimeInterval
@State private var timerActive = false
@Binding var studyTime: Int
@Binding var selectedExam: Exam
init(studyTime: Binding<Int>, selectedExam: Binding<Exam>) {
_studyTime = studyTime
_selectedExam = selectedExam
_timeRemaining = State(initialValue: TimeInterval(studyTime.wrappedValue * 60))
}
var body: some View {
VStack {
ZStack {
Circle()
.trim(from: 0, to: CGFloat(timeRemaining / (TimeInterval(studyTime * 60))))
.stroke(Color.purple, lineWidth: 15)
.rotationEffect(.degrees(-90))
.animation(.linear(duration: 1))
.padding(40)
Text("\(timeRemaining.formattedTime)")
.font(.system(size: 50))
}
Button(action: {
self.timerActive.toggle()
}) {
Text(timerActive ? "Stop" : "Start")
.font(.title)
.padding()
}
.foregroundColor(.white)
.background(timerActive ? Color.red : Color.green)
.cornerRadius(10)
.padding()
}
.onReceive(timer) { _ in
guard self.timerActive else { return }
if self.timeRemaining > 0 {
self.timeRemaining -= 1
} else {
self.timerActive = false
sendNotification()
}
print("Time Remaining: \(self.timeRemaining)")
}
.navigationTitle($selectedExam.wrappedValue.subject)
.navigationBarBackButtonHidden(true)
.onDisappear {
// Actions if the timer View disappears
}
}
var timer: AnyPublisher<Date, Never> {
Timer.TimerPublisher(interval: 1.0, runLoop: .main, mode: .default)
.autoconnect()
.eraseToAnyPublisher()
}
func sendNotification() {
let content = UNMutableNotificationContent()
content.title = "Lernzeit vorbei"
content.body = "Deine Lernzeit für \(selectedExam.subject) ist abgelaufen!"
content.sound = UNNotificationSound.default
let trigger = UNTimeIntervalNotificationTrigger(timeInterval: 1, repeats: false)
let request = UNNotificationRequest(identifier: "timerNotification", content: content, trigger: trigger)
UNUserNotificationCenter.current().add(request) { error in
if let error = error {
print("Fehler beim Hinzufügen der Benachrichtigung zur Warteschlange: \(error.localizedDescription)")
} else {
print("Benachrichtigung zur Warteschlange hinzugefügt")
}
}
}
}
extension TimeInterval {
var formattedTime: String {
let minutes = Int(self) / 60 % 60
let seconds = Int(self) % 60
return String(format: "%02i:%02i", minutes, seconds)
}
}
I looked it up and the app is allowed to send every type of notification... (this is initialized in another part of the code)
Posted
by
StrgR.
Last updated
StrgR.
.