如何在iOS應用中獲取聯系人ID？

Question

我是iOS的新手，已經在我的應用程序中獲取了聯系人，但是如何獲取聯系人ID ...假設是否有兩個用相同名稱保存的號碼，那么如何獲取該特定聯系人姓名的ID？

Answer 1

您可以這樣嘗試：導入框架

#import <Contacts/Contacts.h>

碼

- (void) getContacts {
    CNContactStore *store = [[CNContactStore alloc] init];
    [store requestAccessForEntityType:CNEntityTypeContacts completionHandler:^(BOOL granted, NSError * _Nullable error) {
        if (granted == YES) {
            //keys with fetching properties
            NSArray *keys = @[CNContactFamilyNameKey, CNContactGivenNameKey, CNContactPhoneNumbersKey, CNContactImageDataKey];
            NSString *containerId = store.defaultContainerIdentifier;
            NSPredicate *predicate = [CNContact predicateForContactsInContainerWithIdentifier:containerId];
            NSError *error;
            NSArray *cnContacts = [store unifiedContactsMatchingPredicate:predicate keysToFetch:keys error:&error];
            if (error) {
                NSLog(@"error fetching contacts %@", error);
            } else {
                for (CNContact *contact in cnContacts) {
                    //store all the contacts as per your requirement
                    NSLog(@"Id %@",contact.identifier);//the contact id which you want
                    NSLog(@"Name %@",contact.givenName);
                }
            }
        }        
    }];
}