private async void Init() { NetworkAccess access = Connectivity.NetworkAccess; if (access == NetworkAccess.Unknown || access == NetworkAccess.None || access == NetworkAccess.Local) { await DisplayAlert("Alert", "This application requires an internet connection.\nPressing Ok will close the application.", "Ok"); Process.GetCurrentProcess().Kill(); } masterPage.lvwNavigation.ItemSelected += OnItemSelected; masterPage.lvwBottomNavigation.ItemSelected += OnItemSelected; if (Device.RuntimePlatform == Device.UWP) { MasterBehavior = MasterBehavior.Popover; } Detail = new NavigationPage(new LeaderboardPage()); await this.SetUserContent(); NavMenu.LoadNavigation(); }