La página de detalles maestros de Xamarin no se muestra

Estoy usando el Xamarin form with MasterDetailPage base class Pero no puedo get la página maestra … La página de detalles está llegando, pero el menu master no se muestra … Por favor revisa el código a continuación. ¿Debo especificar algún otro método para llamar al master o algo malo que estoy haciendo en el código siguiente?

 public class HomeView: MasterDetailPage { public   HomeView() { Label header = new Label { Text = "MENU", Font = Font.BoldSystemFontOfSize(20),HorizontalOptions = LayoutOptions.Center }; Label header1 = new Label { Text = "MENU1", Font = Font.BoldSystemFontOfSize(20), HorizontalOptions = LayoutOptions.Center }; // create an array of the Page names string[] myPageNames = { "Main", "Page 2", "Page 3"}; // Create ListView for the Master page. ListView listView = new ListView { ItemsSource = myPageNames, }; ListView listView1 = new ListView { ItemsSource = myPageNames, }; this.Master = new ContentPage { Content = new StackLayout { Children = { header, listView } } }; // Set up the Detail, ie the Home or Main page. Label myHomeHeader = new Label { Text = "Home Page", HorizontalOptions = LayoutOptions.Center }; string[] homePageItems = { "Alpha", "Beta", "Gamma" }; ListView myHomeView = new ListView { ItemsSource = homePageItems, }; this.Detail = new ContentPage { Content = new StackLayout { Children = { header1, listView1 },        }    }; } } 

Pruebe el siguiente código:

 public class HomeView: MasterDetailPage { public HomeView() { Label header = new Label { Text = "MENU", Font = Font.BoldSystemFontOfSize(20), HorizontalOptions = LayoutOptions.Center }; Label header1 = new Label { Text = "MENU1", Font = Font.BoldSystemFontOfSize(20), HorizontalOptions = LayoutOptions.Center }; // create an array of the Page names string[] myPageNames = { "Main", "Page 2", "Page 3"}; // Create ListView for the Master page. ListView listView = new ListView { ItemsSource = myPageNames, }; ListView listView1 = new ListView { ItemsSource = myPageNames, }; this.Master = new ContentPage { Content = new StackLayout { Children = { header, listView } } }; // Set up the Detail, ie the Home or Main page. Label myHomeHeader = new Label { Text = "Home Page", HorizontalOptions = LayoutOptions.Center }; string[] homePageItems = { "Alpha", "Beta", "Gamma" }; ListView myHomeView = new ListView { ItemsSource = homePageItems, }; this.Detail = new NavigationPage(new ContentPage { Content = new StackLayout { Children = { header1, myHomeView }, } }); } }