Experimental: this API is experimental and might be changed or removed in the future.

DropdownMenu.AppendAction

public void AppendAction (string actionName, Action<MenuAction> action, Func<MenuAction,StatusFlags> actionStatusCallback, object userData);

参数

actionName	Name of the item. This name will be displayed in the drop-down menu.
action	用户在菜单中选择此项目时要执行的回调。
actionStatusCallback	确定项目状态要执行的回调。
userData	An object that will be stored in the userData property of the MenuAction item.

Add an item that will execute an action in the drop-down menu. The item is added at the end of the current item list.