/// <summary>
/// Creates a page associated with the ViewModel and pushes it on the navigation stack.
/// </summary>
/// <param name="viewModelType">The ViewModel to associate and bind.</param>
/// <param name="parameter">Any parameters required by the ViewModel.</param>
/// <returns>A Task.</returns>
private async Task InternalNavigateToAsync(Type viewModelType, object parameter = null)
{
Page page = null;
try
{
page = this.CreateAndBindPage(viewModelType, parameter);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
if (page is MainView)
{
this.CurrentApplication.MainPage = page;
}
else if (this.CurrentApplication.MainPage is MainView)
{
var mainPage = this.CurrentApplication.MainPage as MainView;
if (mainPage.Detail is DefaultNavigationPage navigationPage)
{
var currentPage = navigationPage.CurrentPage;
if (currentPage.GetType() != page.GetType())
{
await navigationPage.PushAsync(page);
}
}
else
{
navigationPage = new DefaultNavigationPage(page);
mainPage.Detail = navigationPage;
}
mainPage.IsPresented = false;
}
else
{
var navigationPage = this.CurrentApplication.MainPage as DefaultNavigationPage;
if (navigationPage != null)
{
await navigationPage.PushAsync(page);
}
else
{
this.CurrentApplication.MainPage = new DefaultNavigationPage(page);
}
}
await(page.BindingContext as ViewModelBase).InitializeAsync(parameter);
}
public App()
{
app = this;
RegisterDependencies();
/* if we were targeting Windows Phone, we'd want to include the next line. */
// if (Device.OS != TargetPlatform.WinPhone)
TextResources.Culture = DependencyService.Get <ILocalize>().GetCurrentCultureInfo();
_AuthenticationService = DependencyService.Get <IAuthenticationService>();
// If the App.IsAuthenticated property is false, modally present the SplashPage.
if (!_AuthenticationService.IsAuthenticated)
{
MainPage = new DefaultNavigationPage(new WelcomePage());
}
else
{
GoToRoot();
}
NavigationPage.SetHasNavigationBar(this, false);
}