ios - 设备上的 ABAddressBookCopyArrayOfAllPeople 错误 - 在模拟器上正确

Question

我有以下代码:

NSMutableArray *contacts = [[NSMutableArray alloc]init];
CFErrorRef *error = nil;
ABAddressBookRef addressBook = ABAddressBookCreateWithOptions(NULL, error);
if (error)
}
NSArray *arrayOfPeople = (__bridge_transfer NSArray*)ABAddressBookCopyArrayOfAllPeople(addressBook);

它在模拟器上运行并给了我预期的结果 - 然而在设备上联系人数量为 0 并且没有错误(奇怪的是应用程序不要求我访问地址簿的权限 - 我什至删除并重新安装了应用程序)有什么想法吗？

提前致谢

Answer 1

在 ios 6 上，您需要访问地址簿。调用 ABAddressBookRequestAccessWithCompletion() 获取权限。见this和 AddressHelper

CFErrorRef error = nil;
ABAddressBookRef addressBook = ABAddressBookCreateWithOptions(NULL, &error);
ABAddressBookRequestAccessWithCompletion(addressBook, ^(bool granted, CFErrorRef error) {
    if (error) {
        NSLog(@"error %@", error);
    }else if (granted){
        // Do what you want with the Address Book

    }else{
        NSLog(@"permission denied");
    }

    CFRelease(addressBook);
});