public void HandleNavigated(ShellNavigatedEventArgs args)
{
if (_accumulateNavigatedEvents)
{
if (_accumulatedEvent == null)
{
_accumulatedEvent = args;
}
}
else
{
_accumulatedEvent = null;
BaseShellItem baseShellItem = _shell.CurrentItem?.CurrentItem?.CurrentItem;
if (baseShellItem != null)
{
baseShellItem.OnAppearing(() =>
{
FireNavigatedEvents(args, _shell);
});
}
else
{
FireNavigatedEvents(args, _shell);
}
void FireNavigatedEvents(ShellNavigatedEventArgs a, Shell shell)
{
Navigated?.Invoke(this, args);
// reset active page route tree
Routing.ClearImplicitPageRoutes();
Routing.RegisterImplicitPageRoutes(_shell);
}
}
}
public BaseShellItemHandler(NativeComponentRenderer renderer, XF.BaseShellItem baseShellItemControl) : base(renderer, baseShellItemControl)
{
BaseShellItemControl = baseShellItemControl ?? throw new ArgumentNullException(nameof(baseShellItemControl));
BaseShellItemControl.Appearing += (s, e) =>
{
if (AppearingEventHandlerId != default)
{
renderer.Dispatcher.InvokeAsync(() => renderer.DispatchEventAsync(AppearingEventHandlerId, null, e));
}
};
BaseShellItemControl.Disappearing += (s, e) =>
{
if (DisappearingEventHandlerId != default)
{
renderer.Dispatcher.InvokeAsync(() => renderer.DispatchEventAsync(DisappearingEventHandlerId, null, e));
}
};
}
public BaseShellItemHandler(NativeComponentRenderer renderer, XF.BaseShellItem baseShellItemControl) : base(renderer, baseShellItemControl)
{
BaseShellItemControl = baseShellItemControl ?? throw new ArgumentNullException(nameof(baseShellItemControl));
Initialize(renderer);
}
protected override bool IsShellElementVisible(BaseShellItem item)
{
IShellContentController controller = (IShellContentController)item;
return(controller.Page == null || controller.Page.IsVisible);
}
