void InitializeComponent()
{
SetAlignment(-1, -1);
SetWeight(1, 1);
SetLayoutCallback(OnLayout);
_viewStack = new SimpleViewStack(Forms.NativeParent);
if (Device.Idiom == TargetIdiom.Phone)
{
_viewStack.BackgroundColor = ElmSharp.Color.White;
}
_viewStack.Show();
PackEnd(_viewStack);
_navBar = new ShellNavBar();
_navBar.Show();
PackEnd(_navBar);
IShellSectionController controller = ShellSection;
controller.NavigationRequested += OnNavigationRequested;
controller.AddDisplayedPageObserver(this, UpdateDisplayedPage);
((IShellController)Shell.Current).AddAppearanceObserver(this, ShellSection);
((IShellController)Shell.Current).AddFlyoutBehaviorObserver(_navBar);
_shellSectionRenderer = CreateShellSectionRenderer(ShellSection);
_shellSectionRenderer.NativeView.Show();
_viewStack.Push(_shellSectionRenderer.NativeView);
Device.BeginInvokeOnMainThread(() =>
{
(_shellSectionRenderer.NativeView as Widget)?.SetFocus(true);
});
}
public ShellSectionNavigation(IFlyoutController flyoutController, ShellSection section) : base(Forms.NativeParent)
{
_section = section;
_section.PropertyChanged += OnSectionPropertyChanged;
_rootPage = ((IShellContentController)_section.CurrentItem).GetOrCreateContent();
_navBar = new ShellNavBar(flyoutController, this);
_navBar.Show();
var renderer = new ShellSectionRenderer(section);
renderer.Control.Show();
_navigationStack.AddLast(renderer.Control);
_pageToNative[_rootPage] = renderer.Control;
_nativeToPage[renderer.Control] = _rootPage;
IShellSectionController controller = _section as IShellSectionController;
controller.NavigationRequested += OnNavigationRequested;
controller.AddDisplayedPageObserver(this, UpdateDisplayedPage);
PackEnd(_navBar);
PackEnd(renderer.Control);
LayoutUpdated += OnLayoutUpdated;
((IShellController)_section.Parent.Parent).AddAppearanceObserver(this, _section);
}