iPhone地址簿中存儲了多少條目？

Question

是否有可能以編程方式知道存儲在iOS地址簿中的條目數量？

Answer 1

ABAddressBookRef addressBook = ABAddressBookCreate(); 
CFArrayRef people = ABAddressBookCopyArrayOfAllPeople(addressBook); 
CFIndex peopleCount = CFArrayGetCount(people); 
CFArrayRef groups = ABAddressBookCopyArrayOfAllGroups(addressBook); 
CFIndex groupsCount = CFArrayGetCount(groups); 

欲瞭解更多信息，請參閱Address Book Programming Guide for iOS。

Answer 2

使用ABAddressBookGetPersonCount來算總的接觸，如： -

ABAddressBookRef addressBook = ABAddressBookCreate(); 
CFArrayRef allPeople = ABAddressBookCopyArrayOfAllPeople(addressBook); 
CFIndex nPeople = ABAddressBookGetPersonCount(addressBook); 

for (int i = 0; i < nPeople; i++) 
{ 
    ABRecordRef ref = CFArrayGetValueAtIndex(allPeople, i); 
    ... 
}