CNContact框架工作不提取所有聯繫人（iCloud，Gmail）

Question

設置>聯繫人>默認帳戶被選爲iCloud並保存了一個新聯繫人。然後將默認帳戶更改爲gmail。 CNContactStore不獲取新保存的聯繫人。

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]; 
} 

Answer 1

如果你只是想獲得全部統一聯繫人（在表現同一人物的不同帳戶聯繫可自動連接在一起。鏈接聯繫人顯示在MacOS和iOS應用程序作爲統一的聯繫人）最好的解決辦法是低於一個

-(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) { 

     }]; 
     } 
    }