本文介绍了如何在iPhone中的NSMutableArray中添加ABRecordRef？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我想创建一个ABRecordRef（s）数组来存储具有有效生日字段的联系人。
I want to create an array of ABRecordRef(s) to store contacts which have a valid birthday field.
NSMutableArray* bContacts = [[NSMutableArray alloc] init];
ABAddressBookRef addressBook = ABAddressBookCreate();
CFArrayRef allPeople = ABAddressBookCopyArrayOfAllPeople(addressBook);
CFIndex nPeople = ABAddressBookGetPersonCount(addressBook);
for( int i = 0 ; i < nPeople ; i++ )
{
ABRecordRef ref = CFArrayGetValueAtIndex(allPeople, i );
NSDate* birthdayDate = (NSDate*) ABRecordCopyValue(ref, kABPersonBirthdayProperty);
if (birthdayDate != nil){
[bContacts addObject:ref];
}
}
编译器显示此警告：
警告：传递'addObject：'的参数1'从指针目标类型中丢弃限定符
我在网上搜索并发现我必须将ABRecordRef转换为ABRecord *以便能够存储在NSMutableArray中。
The compiler shows this warning:warning: passing argument 1 of 'addObject:' discards qualifiers from pointer target typeI searched the web and found I have to cast ABRecordRef to a ABRecord* to be able to store in a NSMutableArray.
[bContacts addObject:(ABRecord*) ref];
但似乎ABRecord不是iOS框架的一部分。现在我如何将ABRecordRef存储到NSMutableArray？
But it seems ABRecord is not part of iOS frameworks. Now how I store ABRecordRef to NSMutableArray?
推荐答案
[bContacts addObject:(id) ref];
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