void UpdateCurrentItem(ShellContent content)
{
if (_currentContent != null)
{
_currentContent.Hide();
_contentArea.UnPack(_currentContent);
_currentContent = null;
}
if (content == null)
{
return;
}
if (!_contentCache.ContainsKey(content))
{
var native = CreateShellContent(content);
native.SetAlignment(-1, -1);
native.SetWeight(1, 1);
_contentCache[content] = native;
}
_currentContent = _contentCache[content];
_currentContent.Show();
_contentArea.PackEnd(_currentContent);
}
void RemovePage(EvasObject del)
{
_pageToNative.Remove(_nativeToPage[del]);
_nativeToPage.Remove(del);
_navigationStack.Remove(del);
del.Hide();
del.Unrealize();
}
public void Insert(EvasObject before, EvasObject view)
{
view.Hide();
var idx = InternalStack.IndexOf(before);
InternalStack.Insert(idx, view);
PackEnd(view);
UpdateTopView();
}
void ResetCurrentItem()
{
if (_currentItem != null)
{
_mainLayout.UnPack(_currentItem);
_currentItem.Hide();
_currentItem = null;
}
}
void UpdateTopView()
{
if (_lastTop != InternalStack.LastOrDefault())
{
_lastTop?.Hide();
_lastTop = InternalStack.LastOrDefault();
_lastTop.Show();
}
}
void UnsetMainContent()
{
if (_content != null)
{
_contentBox.UnPack(_content);
_content.Hide();
_content = null;
}
}
void UpdateTopView()
{
if (_lastTop != InternalStack.LastOrDefault())
{
_lastTop?.Hide();
_lastTop = InternalStack.LastOrDefault();
_lastTop.Show();
(_lastTop as Widget)?.SetFocus(true);
}
}
public static void UpdateVisibility(this EvasObject platformView, IView view)
{
if (view.Visibility.ToPlatformVisibility())
{
platformView.Show();
}
else
{
platformView.Hide();
}
}
void UnsetDrawerContent()
{
if (_drawerContent != null)
{
_drawerContentBox.UnPack(_drawerContent);
_drawerContent.Hide();
_drawerContent = null;
_drawerContentBox.Hide();
_drawerIconBox.Hide();
}
}
void UpdateChildren()
{
if (_searchHandler != null)
{
_nativeSearchHandler.Show();
_title?.Hide();
_nativeTitleView?.Hide();
}
else if (_titleView != null)
{
_nativeTitleView.Show();
_title?.Hide();
_nativeSearchHandler?.Hide();
}
else
{
_title.Show();
_nativeTitleView?.Hide();
_nativeSearchHandler?.Hide();
}
UpdatPageLayout();
}
void UpdateMain(EvasObject main)
{
if (_main != null)
{
_mainContainer.UnPack(_main);
_main.Hide();
}
_main = main;
if (_main != null)
{
if (!_main.IsVisible)
{
_main.Show();
}
_mainContainer.PackEnd(_main);
}
}
void OnCurrentPageChanged(object sender, EToolbarItemEventArgs e)
{
if (_tpage.SelectedItem == null)
{
return;
}
if (_tcontent != null)
{
_tcontent.Hide();
_box.UnPack(_tcontent);
(Element.CurrentPage as IPageController)?.SendDisappearing();
}
Element.CurrentPage = _itemToItemPage[_tpage.SelectedItem];
_tcontent = Platform.GetOrCreateRenderer(Element.CurrentPage).NativeView;
_tcontent.SetAlignment(-1, -1);
_tcontent.SetWeight(1, 1);
_tcontent.Show();
_box.PackEnd(_tcontent);
(Element.CurrentPage as IPageController)?.SendAppearing();
}