using CommunityToolkit.Mvvm.Messaging; using salesbook.Shared.Core.Messages.Back; namespace salesbook.Maui { public partial class MainPage : ContentPage { private readonly IMessenger _messenger; public MainPage(IMessenger messenger) { InitializeComponent(); _messenger = messenger; } protected override bool OnBackButtonPressed() { _messenger.Send(new HardwareBackMessage("back")); return true; } } }