EvasObject CreateNavItem(Page page)
{
View titleView = NavigationPage.GetTitleView(page);
EvasObject nativeView = null;
if (titleView != null)
{
titleView.Parent = this.Element;
nativeView = new Native.TitleViewPage(Forms.NativeParent, page, titleView);
nativeView.Show();
}
else
{
nativeView = Platform.GetOrCreateRenderer(page).NativeView;
}
return(nativeView);
}
void UpdateHasNavigationBar(Page page)
{
NaviItem item = GetNaviItemForPage(page);
if (NavigationPage.GetTitleView(page) != null)
{
item.TitleBarVisible = false;
Native.TitleViewPage tvPage = item.Content as Native.TitleViewPage;
if (tvPage != null)
{
tvPage.HasNavigationBar = (bool)page.GetValue(NavigationPage.HasNavigationBarProperty);
}
return;
}
item.SetTabBarStyle();
item.TitleBarVisible = (bool)page.GetValue(NavigationPage.HasNavigationBarProperty);
UpdateToolbarItem(page, item);
UpdateBarBackgroundColor(item);
UpdateBreadCrumbsBar(item);
}
void UpdateHasNavigationBar(Page page)
{
NaviItem item = GetNaviItemForPage(page);
if (NavigationPage.GetTitleView(page) != null)
{
item.TitleBarVisible = false;
Native.TitleViewPage tvPage = item.Content as Native.TitleViewPage;
if (tvPage != null)
{
tvPage.HasNavigationBar = (bool)page.GetValue(NavigationPage.HasNavigationBarProperty);
}
return;
}
//According to TV UX Guideline, item style should be set to "tabbar" in case of TabbedPage only for TV profile.
if (Device.Idiom == TargetIdiom.TV)
{
item.Style = page is TabbedPage ? "tabbar" : "default";
}
item.TitleBarVisible = (bool)page.GetValue(NavigationPage.HasNavigationBarProperty);
UpdateToolbarItem(page, item);
UpdateBarBackgroundColor(item);
UpdateBreadCrumbsBar(item);
}