ObservedObjectReset.swift

import SwiftUI

class Counter: ObservableObject {
  @Published var count: Int
  
  init(_ count: Int) {
    self.count = count
  }
  
  func increment() {
    count = count + 1
  }
}

struct CounterView: View {
  @ObservedObject var counter = Counter(0)
  
  var body: some View {
    Text(String(counter.count))
    Button("+ 1", action: { counter.increment() })
  }
}


struct ContentView: View {
    @State var random: Int = 0
  
    var body: some View {
      VStack {
        CounterView()
        
        Spacer()
        
        Text(String(random))
        Button("Random", action: { random = Int.random(in: 1...10) })
      }.font(.system(size: 26))
    }
}