private static IItemsSourceGenerator GetOrAddTabBarItemsSourceGenerator(UITabBarController controller)
{
var generator = controller.GetBindingMemberValue(AttachedMembers.UITabBarController.ItemsSourceGenerator);
if (generator == null)
{
generator = new ArrayItemsSourceGenerator <UITabBarController, UIViewController>(controller,
AttachedMemberConstants.ItemTemplate, (tabBarController, controllers) =>
{
tabBarController.SetViewControllers(controllers, true);
var viewController = tabBarController.SelectedViewController;
if (viewController != null)
{
if ((controllers.Length == 0) || !controllers.Contains(viewController))
{
viewController.RemoveFromParentViewController();
viewController.View?.RemoveFromSuperviewEx();
if (controllers.Length == 0)
{
tabBarController.SetBindingMemberValue(
AttachedMembers.UITabBarController.SelectedItem, BindingExtensions.NullValue);
}
else
{
tabBarController.SelectedViewController = controllers.Last();
}
}
}
});
controller.SetBindingMemberValue(AttachedMembers.UITabBarController.ItemsSourceGenerator, generator);
}
return(generator);
}
private static IItemsSourceGenerator GetOrAddToolBarItemsSourceGenerator(UIToolbar toolbar)
{
var generator = toolbar.GetBindingMemberValue(AttachedMembers.UIView.ItemsSourceGenerator);
if (generator == null)
{
generator = new ArrayItemsSourceGenerator <UIToolbar, UIBarButtonItem>(toolbar,
AttachedMemberConstants.ItemTemplate,
(tabBarController, items) => tabBarController.SetItemsEx(items, true));
toolbar.SetBindingMemberValue(AttachedMembers.UIView.ItemsSourceGenerator, generator);
}
return(generator);
}
private static IItemsSourceGenerator GetOrAddToolBarItemsSourceGenerator(UIViewController controller)
{
var generator = controller.GetBindingMemberValue(AttachedMembers.UIViewController.ToolbarItemsSourceGenerator);
if (generator == null)
{
generator = new ArrayItemsSourceGenerator <UIViewController, UIBarButtonItem>(controller,
AttachedMembers.UIViewController.ToolbarItemTemplateSelector,
(tabBarController, items) => tabBarController.SetToolbarItemsEx(items, true));
controller.SetBindingMemberValue(AttachedMembers.UIViewController.ToolbarItemsSourceGenerator, generator);
}
return(generator);
}
private static IItemsSourceGenerator GetOrAddToolBarItemsSourceGenerator(UIToolbar toolbar)
{
var generator = toolbar.GetBindingMemberValue(AttachedMembers.UIView.ItemsSourceGenerator);
if (generator == null)
{
generator = new ArrayItemsSourceGenerator<UIToolbar, UIBarButtonItem>(toolbar,
AttachedMemberConstants.ItemTemplate,
(tabBarController, items) => tabBarController.SetItemsEx(items, true));
toolbar.SetBindingMemberValue(AttachedMembers.UIView.ItemsSourceGenerator, generator);
}
return generator;
}
private static IItemsSourceGenerator GetOrAddToolBarItemsSourceGenerator(UIViewController controller)
{
var generator = controller.GetBindingMemberValue(AttachedMembers.UIViewController.ToolbarItemsSourceGenerator);
if (generator == null)
{
generator = new ArrayItemsSourceGenerator<UIViewController, UIBarButtonItem>(controller,
AttachedMembers.UIViewController.ToolbarItemTemplateSelector,
(tabBarController, items) => tabBarController.SetToolbarItemsEx(items, true));
controller.SetBindingMemberValue(AttachedMembers.UIViewController.ToolbarItemsSourceGenerator, generator);
}
return generator;
}
private static IItemsSourceGenerator GetOrAddTabBarItemsSourceGenerator(UITabBarController controller)
{
var generator = controller.GetBindingMemberValue(AttachedMembers.UITabBarController.ItemsSourceGenerator);
if (generator == null)
{
generator = new ArrayItemsSourceGenerator<UITabBarController, UIViewController>(controller,
AttachedMemberConstants.ItemTemplate, (tabBarController, controllers) =>
{
tabBarController.SetViewControllers(controllers, true);
var viewController = tabBarController.SelectedViewController;
if (viewController != null)
{
if (controllers.Length == 0 || !controllers.Contains(viewController))
{
viewController.RemoveFromParentViewController();
if (viewController.View != null)
viewController.View.RemoveFromSuperviewEx();
if (controllers.Length == 0)
tabBarController.SetBindingMemberValue(
AttachedMembers.UITabBarController.SelectedItem, BindingExtensions.NullValue);
else
tabBarController.SelectedViewController = controllers.Last();
}
}
});
controller.SetBindingMemberValue(AttachedMembers.UITabBarController.ItemsSourceGenerator, generator);
}
return generator;
}
