// This is used to fire NavigationFinished back to the xplat view
// Firing NavigationFinished from Loaded is the latest reliable point
// in time that I know of for firing `NavigationFinished`
// Ideally we could fire it when the `NavigationTransitionInfo` is done but
// I haven't found a way to do that
void OnNavigated(object sender, UI.Xaml.Navigation.NavigationEventArgs e)
{
// If the user has inserted or removed any extra pages
SyncBackStackToNavigationStack(NavigationStack);
if (e.Content is not FrameworkElement fe)
{
return;
}
if (e.Content is not Page page)
{
return;
}
ContentPresenter?presenter;
if (page.Content == null)
{
presenter = new ContentPresenter()
{
HorizontalAlignment = UI.Xaml.HorizontalAlignment.Stretch,
VerticalAlignment = UI.Xaml.VerticalAlignment.Stretch
};
page.Content = presenter;
}
else
{
presenter = page.Content as ContentPresenter;
}
// At this point if the Content isn't a ContentPresenter the user has replaced
// the conent so we just let them take control
if (presenter == null || _currentPage == null)
{
return;
}
try
{
presenter.Content = _currentPage.ToPlatform(MauiContext);
}
catch (Exception)
{
FireNavigationFinished();
throw;
}
fe.OnLoaded(() =>
{
FireNavigationFinished();
if (NavigationView is IView view)
{
view.Arrange(fe);
}
});
}
// This is used to fire NavigationFinished back to the xplat view
// Firing NavigationFinished from Loaded is the latest reliable point
// in time that I know of for firing `NavigationFinished`
// Ideally we could fire it when the `NavigationTransitionInfo` is done but
// I haven't found a way to do that
void OnNavigated(object sender, UI.Xaml.Navigation.NavigationEventArgs e)
{
// If the user has inserted or removed any extra pages
SyncBackStackToNavigationStack(NavigationStack);
if (e.Content is not FrameworkElement fe)
{
return;
}
if (e.Content is not Page page)
{
return;
}
ContentPresenter?presenter;
if (page.Content == null)
{
presenter = new ContentPresenter()
{
HorizontalAlignment = UI.Xaml.HorizontalAlignment.Stretch,
VerticalAlignment = UI.Xaml.VerticalAlignment.Stretch
};
page.Content = presenter;
}
else
{
presenter = page.Content as ContentPresenter;
}
// At this point if the Content isn't a ContentPresenter the user has replaced
// the conent so we just let them take control
if (presenter == null || _currentPage == null)
{
return;
}
presenter.Content = _currentPage.ToNative(MauiContext);
if (fe.IsLoaded)
{
NavigationView?.NavigationFinished(NavigationStack);
return;
}
fe.Loaded += OnLoaded;
void OnLoaded(object sender, RoutedEventArgs e)
{
fe.Loaded -= OnLoaded;
NavigationView?.NavigationFinished(NavigationStack);
}
}
