Brief introduction of Swift acceleration framework
Official document acceleration
2. Account: It is a set of account management framework natively provided by iOS, which supports the account management functions of Facebook, Sina Weibo, Tencent Weibo, Twitter and LinkedIn. It should be noted that this function has been deleted in iOS 1 1 and above systems, so Accounts.framework actually has little meaning, and it is only available in systems before iOS 1 1! So I won't elaborate here, just mention it briefly.
3, AddressBook, AddressBookUI address book related frames, in which we get the first contact address book closed.
Address book, address book UI use
Official address book document
Address book UI official document