public VehiclesPage()
        {
            var vehicleStore = new SQLiteVehicleStore(DependencyService.Get <ISQLiteDb>());
            var pageService  = new PageService();

            ViewModel = new VehiclesPageViewModel(vehicleStore, pageService);

            InitializeComponent();
        }
        public VehiclesDetailPage(VehicleViewModel viewModel)
        {
            InitializeComponent();

            var vehicleStore = new SQLiteVehicleStore(DependencyService.Get <ISQLiteDb>());
            var pageService  = new PageService();

            Title          = (viewModel.MyVehicle == null) ? "New Vehicle" : "Edit Vehicle";
            BindingContext = new VehiclesDetailViewModel(viewModel ?? new VehicleViewModel(), vehicleStore, pageService);
        }