toggle to get notified in swiftui - xcode

Question

I want to be able to notify the user of my app every day at a specific time. in this example, the time is noon
import SwiftUI
import UserNotifications
struct Alert: View {
#State var noon = false
func noonNotify() {
let content = UNMutableNotificationContent()
content.title = "Meds"
content.subtitle = "Take your meds"
content.sound = UNNotificationSound.default
var dateComponents = DateComponents()
dateComponents.hour = 14
dateComponents.minute = 38
let trigger = UNCalendarNotificationTrigger(dateMatching: dateComponents, repeats: true)
// choose a random identifier
let request = UNNotificationRequest(identifier: UUID().uuidString, content: content, trigger: trigger)
// add our notification request
UNUserNotificationCenter.current().add(request)
}
var body: some View {
VStack {
Toggle(isOn: $noon) {
Text("ThirdHour")
}
if noon {
noonNotify()
}
Button("Request Permission") {
UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .badge, .sound]) { success, error in
if success {
print("All set!")
} else if let error = error {
print(error.localizedDescription)
}
}
}
}
}
}
I created a func and when the toggle is true, the func will execute, but when it's false, then it won't. however, when I create an if statement, I get an error
Type '()' cannot conform to 'View'; only struct/enum/class types can conform to protocols
can someone explain what I'm doing wrong?

Answer 1

You can't call a function like that. Everything inside var body: some View { has to be a View, and noonNotify() doesn't return a View.
Instead, add an onChange block, which will get triggered whenever noon changes.
Toggle(isOn: $noon) {
Text("ThirdHour")
}
.onChange(of: noon) { newValue in
if newValue {
noonNotify()
}
}