5
我正在使用此代碼將聯繫人從ios電話簿導出到.vcf文件。我已經使用這個代碼來完成任務。但vcardString
總是返回nil
。請幫我解決這個問題。無法使用聯繫人框架創建聯繫人的電子名片
NSMutableArray *contacts=[NSMutableArray alloc] init];
CNContactStore *store = [[CNContactStore alloc] init];
[store requestAccessForEntityType:CNEntityTypeContacts completionHandler:^(BOOL granted, NSError * _Nullable error) {
if (!granted) {
dispatch_async(dispatch_get_main_queue(), ^{
});
return;
}
NSMutableArray *contacts = [NSMutableArray array];
NSError *fetchError;
CNContactFetchRequest *request = [[CNContactFetchRequest alloc] initWithKeysToFetch:@[CNContactIdentifierKey, [CNContactFormatter descriptorForRequiredKeysForStyle:CNContactFormatterStyleFullName]]];
BOOL success = [store enumerateContactsWithFetchRequest:request error:&fetchError usingBlock:^(CNContact *contact, BOOL *stop) {
[contacts addObject:contact];
}];
if (!success) {
NSLog(@"error = %@", fetchError);
}
// you can now do something with the list of contacts, for example, to show the names
CNContactFormatter *formatter = [[CNContactFormatter alloc] init];
for (CNContact *contact in contacts) {
[contactsArray addObject:contact];
// NSString *string = [formatter stringFromContact:contact];
//NSLog(@"contact = %@", string);
}
//NSError *error;
NSData *vcardString =[CNContactVCardSerialization dataWithContacts:contactsArray error:&error];
NSLog(@"vcardString = %@",vcardString);
}];
請閱讀[如何問好問題](// stackoverflow.com/help/how-to-ask)並嘗試編輯您的問題。有了高質量的問題,您將會收到更快的答案。謝謝! – SmokeDispenser
什麼不能確切地工作?哪一行似乎是造成問題? – Larme
@Larme我編輯了我的問題。 –