设置>联系人>默认帐户被选为iCloud并保存了新联系人。然后将默认帐户更改为 gmail。CNContactStore 未获取新保存的联系人。
CNContactStore *store = [[CNContactStore alloc] init];
[store requestAccessForEntityType:CNEntityTypeContacts completionHandler:^(BOOL granted, NSError * _Nullable error) {
if (granted == YES)
{
NSArray *keys = @[CNContactFamilyNameKey, CNContactGivenNameKey, CNContactPhoneNumbersKey, CNContactImageDataKey,CNContactEmailAddressesKey];
NSArray * contactContainerArray = [store containersMatchingPredicate:nil error:nil];
for(CNContainer * container in contactContainerArray) {
NSPredicate *predicate = [CNContact predicateForContactsInContainerWithIdentifier:container.identifier];
NSError *error;
NSArray *cnContacts = [store unifiedContactsMatchingPredicate:predicate keysToFetch:keys error:&error];
}
如果您只是希望获得所有统一联系人(代表同一个人的不同帐户中的联系人可能会自动链接在一起。链接的联系人在macOS和iOS应用程序中显示为统一联系人(最好的解决方案是低于一个
-(void)fetchContacts
{
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,CNContactEmailAddressesKey];
NSString *containerId = store.defaultContainerIdentifier;
NSArray * contactContainerArray = [store containersMatchingPredicate:nil error:nil];
CNContactFetchRequest * fetchRequest = [[CNContactFetchRequest alloc]initWithKeysToFetch:keys];
[store enumerateContactsWithFetchRequest:fetchRequest error:nil usingBlock:^(CNContact * _Nonnull contact, BOOL * _Nonnull stop) {
}];
}
}