mackayn

 protected override bool OnBackButtonPressed()
        {
            if (BindingContext is IConfirmNavigationAsync)
            {
                if (BindingContext is ViewModelBase vm)
                {
                    vm.ConfirmGoBackCommand.Execute();
                }
                return true;
            }

mackayn

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Xamarin.Forms;
using Xamarin.Forms.Xaml;

namespace Foobar.Helpers
{