public MainPage()
{
this.InitializeComponent();
this.NavigationCacheMode = NavigationCacheMode.Required;
mainVm = new MainViewModel();
searchVm = new SearchViewModel();
NearbyPivot.DataContext = mainVm;
FavoritesPivot.DataContext = mainVm;
SearchPivot.DataContext = searchVm;
}
protected override async void OnNavigatedTo(NavigationEventArgs e)
{
if (alreadyLoaded) return;
SettingsHelper.LoadNearbySetting();
SettingsHelper.LoadLaunchPivotSetting();
MainPivot.SelectedIndex = SettingsHelper.LaunchPivotIndex;
mainVm = new MainViewModel();
searchVm = new SearchViewModel();
NearbyPivot.DataContext = mainVm;
FavoritesPivot.DataContext = mainVm;
SearchPivot.DataContext = searchVm;
SettingsHelper.LoadSettings();
await DatabaseHelper.CheckDatabasesAsync();
await searchVm.LoadRoutesAsync();
RouteBox.IsEnabled = true;
await mainVm.LoadAsync();
alreadyLoaded = true;
}