Question

在我的iPad应用程序（Xcode 5，iOS 7，ARC，Storyboards）中，我正在尝试阅读地址簿并获取所有条目。不幸的是，我收到以下错误：

SalonBook [2225：a0b] - [__ NSCFString count]：无法识别的选择器发送到实例0xb335e70

这是我从SO复制的代码（为什么重新发明轮子？）。

-(IBAction)importClientData:(UIButton *)sender {

NSMutableArray *allContacts = [[NSMutableArray alloc] init];
ABAddressBookRef addressBook = ABAddressBookCreateWithOptions(NULL, NULL);
CFArrayRef people  = ABAddressBookCopyArrayOfAllPeople(addressBook);
for(int i = 0;i<ABAddressBookGetPersonCount(addressBook);i++)
{
    NSMutableDictionary *aPersonDict = [[NSMutableDictionary alloc] init];
    ABRecordRef ref = CFArrayGetValueAtIndex(people, i);
    NSString *fullName = (__bridge NSString *) ABRecordCopyCompositeName(ref);
    if (fullName) {
        [aPersonDict setObject:fullName forKey:@"fullName"];

        // collect phone numbers
        NSMutableArray *phoneNumbers = [[NSMutableArray alloc] init];
        ABMultiValueRef phones = ABRecordCopyValue(ref, kABPersonPhoneProperty);
        for(CFIndex j = 0; j < ABMultiValueGetCount(phones); j++) {
            NSString *phoneNumber = (__bridge NSString *) ABMultiValueCopyValueAtIndex(phones, j);
            [phoneNumbers addObject:phoneNumber];
        }
        [aPersonDict setObject:phoneNumbers forKey:@"phoneNumbers"];

        // collect emails - key "emails" will contain an array of email addresses
        ABMultiValueRef emails = ABRecordCopyValue(ref, kABPersonEmailProperty);
        NSMutableArray *emailAddresses = [[NSMutableArray alloc] init];
        for(CFIndex idx = 0; idx < ABMultiValueGetCount(emails); idx++) {
            NSString *email = (__bridge NSString *)ABMultiValueCopyValueAtIndex(emails, idx);
            [emailAddresses addObject:email];
        }
        [aPersonDict setObject:emailAddresses forKey:@"emails"];
        // if you want to collect any other info that's stored in the address book, it follows the same pattern.
        // you just need the right kABPerson.... property.

        [allContacts addObject:aPersonDict];
    }
    else {
        // Note: I have a few entries in my phone that don't have a name set
        // Example one could have just an email address in their address book.
    }
}

}

更新：这是完整的堆栈跟踪：

0 CoreFoundation 0x2e335f53 + 130
1 libobjc.A.dylib 0x3899e6af objc_exception_throw + 38
2 CoreFoundation 0x2e3398e7 + 202
3 CoreFoundation 0x2e3381d3 + 706
4 CoreFoundation 0x2e287598 _CF_forwarding_prep_0 + 24
5 AddressBook 0x2d9274fd ABCCopyUserLanguage + 60
6 AddressBook 0x2d914e3d ABCIsSortDataValid + 28
7 AddressBook 0x2d914d6d ABCCreateAddressBookWithDatabaseDirectoryAndForceInProcessMigrationInProcessLinkingAndResetSortKeys + 1120
8 AddressBook 0x2d928d17 ABAddressBookCreateWithDatabaseDirectory + 74
9 AddressBook 0x2d928e67 ABAddressBookCreateWithOptionsAndPolicy + 146
10 AddressBook 0x2d9290c9 ABAddressBookCreateWithOptions + 88
11 SalonBook 0x000e35db -[CustomerSetupController importClientData:] + 118
12 UIKit 0x30adbf3f + 90
13 UIKit 0x30adbedf + 30
14 UIKit 0x30adbeb9 + 44
15 UIKit 0x30ac7b3f + 374
16 UIKit 0x30adb92f + 590
17 UIKit 0x30adb601 + 528
18 UIKit 0x30ad668d + 832
19 UIKit 0x30aaba25 + 196
20 UIKit 0x30aaa221 + 7096
21 CoreFoundation 0x2e30118b + 14
22 CoreFoundation 0x2e30065b + 206
23 CoreFoundation 0x2e2fee4f + 622
24 CoreFoundation 0x2e269ce7 CFRunLoopRunSpecific + 522
25 CoreFoundation 0x2e269acb CFRunLoopRunInMode + 106
26 GraphicsServices 0x32f37283 GSEventRunModal + 138
27 UIKit 0x30b0ba41 UIApplicationMain + 1136
28 SalonBook 0x000b6335 main + 116
29 libdyld.dylib 0x38ea6ab7 + 2

无论我使用什么代码（我已经尝试了上述代码的几种变体）它们都在同一个调用中崩溃（-ABAddressBookCreateWithOptions）。由于我从多个示例中复制了相同的代码，因此我希望至少可以使用此行。不是！为什么呢？

Answer 1

目前尚不清楚您是否正在呼叫ABAddressBookRequestWithCompletion以获取用户访问地址簿的权限。如果您不在针对iOS 6或更高版本的应用上执行此操作，则不允许您访问该地址簿。话虽这么说，AddressBook API不应该以这种方式崩溃。您可能需要通过bugreport.apple.com向苹果报告错误。

ABAddressBookCreateWithOptions导致崩溃（无法识别的选择器）

1 个答案: