Find centralized, trusted content and collaborate around the technologies you use most.
Teams
Q&A for work
Connect and share knowledge within a single location that is structured and easy to search.
我有一个允许用户编辑联系人的应用程序。在那个应用程序中我有我的联系人,问题是当我尝试编辑它时,通过检索我的联系人的 uri,它总是返回 NULL。有没有办法以编程方式编辑我的联系人?