ReadMe.md

Confirm Navigation

ViewAPage is tab page, and it contains Switch and Button control, Switch is binding to CanNavigateAway property. ViewAPageViewModel is implementing IConfirmNavigation interface and CanNavigateAway is used for returning value in CanNavigate method.
ViewBPage is tab page, and it contains Button, Button and Command property is binding to NavigateAwayCommand. ViewBPageViewModel is implementing IConfirmNavigationAsync interface and I am using IPageDialogService to ask user for confirm to navigate away, response from DisplayAlertAsync is used for return value of CanNavigateAsync method.
ViewCPage is only used for navigating to it, and to show some kind of message with Label control. It also has Button to navigate back (GoBacAsync).