ios - 原因 : '-[CNContact setSnapshot:]: unrecognized selector sent to instance 0x7fc84c8491c0'

Question

当我从 iPhone 通讯录中删除联系人时，它崩溃了。下面的代码，

CNContactStore * contactStore = [[CNContactStore alloc] init];
        CNContactFetchRequest * contactRequest = [[CNContactFetchRequest alloc] initWithKeysToFetch:[self contactKeys]];
        [contactStore enumerateContactsWithFetchRequest:contactRequest error:&err usingBlock:^(CNContact * _Nonnull contact, BOOL * _Nonnull stop) {
            if([contact.familyName isEqualToString:contactItem.familyName] &&
               [contact.middleName isEqualToString:contactItem.middleName] &&
               [contact.givenName isEqualToString:contactItem.givenName]) {

                CNLabeledValue<CNPhoneNumber*>* number1 = [contact.phoneNumbers firstObject];
                CNPhoneNumber *phone = number1.value;
                NSString *number2 = [contactItem.phoneNumbers firstObject];
                if ([phone.stringValue isEqualToString:number2]) {
                    CNSaveRequest *deleteRequest = [[CNSaveRequest alloc] init];
                    [deleteRequest deleteContact:(CNMutableContact *)contact];
                    CNContactStore *deletestore = [[CNContactStore alloc] init];
                    [deletestore executeSaveRequest:deleteRequest error:nil];
                    *stop = YES;
                }
            }
        }];

当线程在这里运行时 [deletestore executeSaveRequest:deleteRequest error:nil]; ，它崩溃了!我真的不明白代码有什么问题~很简单的一个片段。感谢您的帮助!

Answer 1

好吧，到现在为止，没有人回答我的问题。我自己解决了。我从联系人中获取所有人，然后迭代该人。解决方案是:原代码[deleteRequest deleteContact:(CNMutableContact *)contact];更改代码后 [deleteRequest deleteContact:(CNMutableContact *)contact mutableCopy];

没关系。但我不知道为什么？