Task CreateNavigationViewHandlerAsync(IStackNavigationView navigationView, Func <NavigationViewHandler, Task> action)
{
return(InvokeOnMainThreadAsync(async() =>
{
FrameworkElement frameworkElement = null;
var content = (Panel)DefaultWindow.Content;
try
{
var mauiContext = MauiContext.MakeScoped(true);
var handler = CreateHandler(navigationView, mauiContext);
frameworkElement = handler.PlatformView;
content.Children.Add(frameworkElement);
if (navigationView is NavigationViewStub nvs && nvs.NavigationStack?.Count > 0)
{
navigationView.RequestNavigation(new NavigationRequest(nvs.NavigationStack, false));
await nvs.OnNavigationFinished;
}
await action(handler);
}
finally
{
if (frameworkElement != null)
{
content.Children.Remove(frameworkElement);
}
}
}));
}
Task CreateNavigationViewHandlerAsync(IStackNavigationView navigationView, Func <NavigationViewHandler, Task> action)
{
return(InvokeOnMainThreadAsync(async() =>
{
var context = MauiProgram.DefaultContext;
var rootView = (context as AppCompatActivity).Window.DecorView as ViewGroup;
var linearLayoutCompat = new LinearLayoutCompat(context);
var fragmentManager = MauiContext.GetFragmentManager();
var viewFragment = new NavViewFragment(MauiContext);
try
{
linearLayoutCompat.Id = View.GenerateViewId();
fragmentManager
.BeginTransaction()
.Add(linearLayoutCompat.Id, viewFragment)
.Commit();
rootView.AddView(linearLayoutCompat);
await viewFragment.FinishedLoading;
var handler = CreateHandler(navigationView, viewFragment.ScopedMauiContext);
if (navigationView is NavigationViewStub nvs && nvs.NavigationStack?.Count > 0)
{
navigationView.RequestNavigation(new NavigationRequest(nvs.NavigationStack, false));
await nvs.OnNavigationFinished;
}
await action(handler);
}
finally
{
rootView.RemoveView(linearLayoutCompat);
fragmentManager
.BeginTransaction()
.Remove(viewFragment)
.Commit();
}
}));
}