block1.swift

import SwiftUI

struct ContentView: View {
    
    func setNotification() -> Void {
        
    }
    
    var body: some View {
        VStack {
            Text("Notification Demo")
            Button(action: { self.setNotification() }) {
                Text("Set Notification!")
            }
        }
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}