xamarin forms viewmodel navigation code example

Example 1: Navigate Handled in viewModel Xamarin

namespace YourApp.ViewModels
{
    public class MainPageViewModel 
    {
        public ICommand BackToMain { get; private set; }

        public MainPageViewModel()
        {
            BackToMain = new Command(async () => {
                await Application.Current.MainPage.Navigation.PopAsync();
            });
        }
    }
}

Example 2: Navigate Handled in viewModel Xamarin

namespace RealmApp1.Views
{
    public partial class MainPage : ContentPage
    {
        public MainPage()
        {
            InitializeComponent();
            BindingContext = new MainPageViewModel();
        }      
    }
}