How Can I Pass Function Through A Toggle Swiftui-CodePudding

State var:

@State var toggleIsOn = false

Toggle:

Toggle(isOn: $toggleIsOn, label: {Text("Notifications")})

I want the following buttons, to represent each state of the toggle, on and off:

                // Will request to send notifications, if success; will schedule them.
                Button("request") {
                    NotificationManager.instance.requestAuthorization()
                }
                // Will clear the queue of notifications, and delete any delivered.
                Button("cancel") {
                    NotificationManager.instance.cancelNotifications()
                }

I found the functions in this video: https://www.youtube.com/watch?v=mG9BVAs8AIo

CodePudding user response：

use

onChange(of:)

for example:

struct ContentView: View {
@State var toggleIsOn: Bool = false

var body: some View {
    Toggle(isOn: $toggleIsOn, label: {Text("Notifications")})
    .onChange(of: toggleIsOn) { isOn in
         if isOn {
              NotificationManager.instance.requestAuthorization()
         } else {
              NotificationManager.instance.cancelNotifications()
         }
    }
}

}