Sheet View

SheetDemoView.swift

struct Account: Identifiable {
    let id = UUID().uuidString
}

struct SheetLaunchingDemoView: View {
    @State var showSheet: Account?
    var body: some View {
        NavigationStack {
            Button("Show Sheet") {
                showSheet = Account()
            }
            .navigationTitle("Sheets")
            .sheet(item: $showSheet) { account in
                NavigationStack {
                    SheetDemoView(account: account)
                }
            }
        }
    }
}

class SheetViewModel: ObservableObject {
    @Published var account: Account
    init(account: Account) {
        self.account = account
        print("INIT")
    }
    deinit {
        print("DEINIT")
    }
}


struct SheetDemoView: View {
    @StateObject private var vm: SheetViewModel
    @Environment(\.dismiss) private var dismiss
    init(account: Account) {
        self._vm = .init(wrappedValue: .init(account: account))
    }
    var body: some View {
        VStack(spacing: 20) {
            Text(vm.account.id)
            Button("Dismiss") {
                dismiss()
            }
        }
        .navigationTitle("Account")
        .onAppear {
            print("APPEARED")
        }
        .onDisappear {
            print("DISAPPEARED")
        }
    }
}

Run the code, launch sheet, and then dismiss it.

INIT
APPEARED
DEINIT
DISAPPEARED

No leaks