Navigate to specific tab inside master detail page in Xamarin

public App()
{
	  InitializeComponent();
	  var parentPage = new MasterDetailView(); // name of the master detail page
	  parentPage.IsPresented = false;
	  var tabbedPage = new MasterDetailTabbedPage(); // name of the tabbed page
	  tabbedPage.CurrentPage = tabbedPage.Children[2]; // specify the index of the tab 
	  parentPage.Detail = new NavigationPage(tabbedPage); // assign the tabbed page to master detail page
	  MainPage = parentPage; // navigate to master detail page (3rd tab selected)
 }