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.
如何在 iPhone 中以编程方式支持 CardDAV Sync 协议？默认地址簿 iPhone API 似乎没有返回通过 CardDAV 协议同步的联系人（例如：gmail 联系人）