private void SetCurrentPage(Page page, bool usePreviousPage = false)
{
page.Platform = this;
if (page.GetRenderer() == null)
{
Renderer = RendererFactory.GetRenderer(page);
page.SetRenderer(Renderer);
}
page.Layout(new Rectangle(0, 0, _renderer.ActualWidth, _renderer.ActualHeight));
if (usePreviousPage)
{
Renderer = page.GetRenderer();
UpdateAppBar();
}
_renderer.Children.Clear();
_renderer.Children.Add((UIElement)Renderer);
if (NavigationService.Current.NavigationModel.Roots.Last() != null)
{
_tracker.Target = NavigationService.Current.NavigationModel.Roots.Last();
}
}
async void SetCurrent(Page newPage, bool animated, bool popping = false, Action completedCallback = null)
{
if (newPage == _currentPage)
return;
newPage.Platform = this;
if (_currentPage != null)
{
Page previousPage = _currentPage;
IVisualElementRenderer previousRenderer = GetRenderer(previousPage);
_container.Children.Remove(previousRenderer.ContainerElement);
if (popping)
previousPage.Cleanup();
}
newPage.Layout(new Rectangle(0, 0, _page.ActualWidth, _page.ActualHeight));
IVisualElementRenderer pageRenderer = newPage.GetOrCreateRenderer();
_container.Children.Add(pageRenderer.ContainerElement);
pageRenderer.ContainerElement.Width = _container.ActualWidth;
pageRenderer.ContainerElement.Height = _container.ActualHeight;
if (completedCallback != null)
completedCallback();
_currentPage = newPage;
UpdateToolbarTracker();
UpdateToolbarTitle(newPage);
await UpdateToolbarItems();
}
