SwiftUI View Lifecycle Methods (onAppear, onDisappear)

.swift

import SwiftUI

struct ContentView: View {
    @State private var isSheetPresented: Bool = false

    var body: some View {
        VStack {
            Button("Show Sheet") {
                isSheetPresented = true
            }
            .font(.title)
            .sheet(isPresented: $isSheetPresented) {
                SheetView()
            }
        }
    }
}

struct SheetView: View {
    var body: some View {
        VStack {
            Text("This is a sheet view!")
                .font(.title)
                .bold()
                .padding()
        }
        .onAppear() {
            print("Sheet is appear!")
        }
        .onDisappear {
            print("Sheet has disappeared!")
        }
    }
}