private async Task InternalNavigateToAsync(Type viewModelType, object parameter)
{
Page page = CreatePage(viewModelType);
if (page is MainView)
{
Application.Current.MainPage = new CustomNavigationView(page);
}
else
{
CustomNavigationView navigationPage = Application.Current.MainPage as CustomNavigationView;
if (navigationPage != null)
{
await navigationPage.PushAsync(page);
}
else
{
Application.Current.MainPage = new CustomNavigationView(page);
}
}
// Pass parameter in..
await(page.BindingContext as ViewModelBase).InitializeAsync(parameter);
}
public async Task GoBackAsync()
{
CustomNavigationView navigationPage = Application.Current.MainPage as CustomNavigationView;
if (navigationPage != null)
{
await navigationPage.PopAsync();
}
}
private Task InitializeApplication()
{
ViewModelLocator.RegisterDependencies();
var page = ViewModelLocator.CreatePage <MainViewModel>();
MainPage = new CustomNavigationView(page);
return((page.BindingContext as MainViewModel).InitializeAsync(null));
}
public async Task GoBackAsync(object arguments)
{
await GoBackAsync();
CustomNavigationView mainPage = Application.Current.MainPage as CustomNavigationView;
if (mainPage.CurrentPage.BindingContext is ViewModelBase viewModel)
{
await viewModel.InitializeAsync(arguments);
}
}
public void InitAfterResumeApp()
{
try {
CustomNavigationView customNavigationView = Application.Current.MainPage as CustomNavigationView;
customNavigationView.Navigation.NavigationStack
.Select(p => (ViewModelBase)p.BindingContext)
.ToList().ForEach(viewModel => viewModel.InitializeAsync(null));
} catch (Exception ex) {
Crashes.TrackError(ex);
Debugger.Break();
}
}
public App()
{
InitializeComponent();
InitApp();
if (Device.RuntimePlatform == Device.UWP)
{
InitNavigation();
}
MainPage = new CustomNavigationView(new MainMenuView());
}
public void UnsubscribeAfterSleepApp()
{
try {
CustomNavigationView customNavigationView = Application.Current.MainPage as CustomNavigationView;
SleepAppArg sleepAppArg = new SleepAppArg();
customNavigationView.Navigation.NavigationStack
.Select <Page, ViewModelBase>(p => (ViewModelBase)p.BindingContext)
.ToList <ViewModelBase>().ForEach(viewModel => viewModel.InitializeAsync(sleepAppArg));
} catch (Exception ex) {
Crashes.TrackError(ex);
Debugger.Break();
}
}
private async Task InternalNavigateToAsync(Type viewModelType, object parameter)
{
Page page = CreatePage(viewModelType, parameter);
if (page is MainView)
{
Application.Current.MainPage = page;
}
else if (page is LoginView)
{
Application.Current.MainPage = new CustomNavigationView(page);
}
else if (Application.Current.MainPage is MainView)
{
var mainPage = Application.Current.MainPage as MainView;
var navigationPage = mainPage.Detail as CustomNavigationView;
if (viewModelType == typeof(SalesManagementViewModel) || viewModelType == typeof(DashboardViewModel) ||
viewModelType == typeof(AddressDetailViewModel) || navigationPage == null)
{
navigationPage = new CustomNavigationView(page);
mainPage.Detail = navigationPage;
}
else
{
await navigationPage.PushAsync(page);
}
mainPage.IsPresented = false;
}
else
{
var navigationPage = Application.Current.MainPage as CustomNavigationView;
if (navigationPage != null)
{
await navigationPage.PushAsync(page);
}
else
{
Application.Current.MainPage = new CustomNavigationView(page);
}
}
await(page.BindingContext as ViewModelBase).InitializeAsync(parameter);
}
protected virtual async Task InternalNavigateToAsync(Type viewModelType, object parameter)
{
Page page = CreateAndBindPage(viewModelType, parameter);
if (page is MainView)
{
CurrentApplication.MainPage = page;
}
else if (page is LoginView)
{
CurrentApplication.MainPage = new CustomNavigationView(page);
}
else if (CurrentApplication.MainPage is MainView)
{
var mainPage = CurrentApplication.MainPage as MainView;
var navigationPage = mainPage.Detail as CustomNavigationView;
if (navigationPage != null)
{
await navigationPage.PushAsync(page);
}
else
{
navigationPage = new CustomNavigationView(page);
mainPage.Detail = navigationPage;
}
mainPage.IsPresented = false;
}
else
{
var navigationPage = CurrentApplication.MainPage as CustomNavigationView;
if (navigationPage != null)
{
await navigationPage.PushAsync(page);
}
else
{
CurrentApplication.MainPage = new CustomNavigationView(page);
}
}
await(page.BindingContext as ViewModelBase).InitializeAsync(parameter);
}
private bool NotAlreadyOpened(Page currentPage, CustomNavigationView navigationPage)
{
return(navigationPage.Navigation.NavigationStack.Count == 0 ||
navigationPage.Navigation.NavigationStack.Last().GetType() != currentPage.GetType());
}
public App()
{
InitializeComponent();
MainPage = new CustomNavigationView(new TimelineView());
}
