I created a simple xamarin.forms non-shell template
MainPage = new NavigationPage(new MainPage());
and the MainPage set to tabbed page
there are 2 pages in the tabbed page
if I close and re-open the APP the two page's OnAppearing will be called but If I tap the second page it will not be called.
and If I use PushAsync to open a page in the OnAppearing then I close it the two page's OnAppearing will not be called too.
why?