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我正在製作iOS應用相關的AddressBook。 當我爲獲得具有「+」符號的電話號碼調用下面的函數時，我有時會遇到崩潰錯誤。 任何人都知道這個錯誤？ 基本上，我得到componentsSeparatedByCharactersInSet函數的錯誤。如何修復componentsSeparatedByCharactersInSet的崩潰錯誤？
- (NSString*) clearedPhoneNumber:(NSString*) dirty_number withPlus:(BOOL)plus {
if (dirty_number == nil)
return nil;
NSString * in_string = [email protected]"":@"";
NSString * phone_str = [[dirty_number componentsSeparatedByCharactersInSet:
[[NSCharacterSet characterSetWithCharactersInString:in_string]
invertedSet]]
componentsJoinedByString:@""];
// Get last 10 digits
NSRange range = NSMakeRange(0, 0);
if ([phone_str length] > MAX_PHONE_LENGTH) {
range.location = 0;
range.length = [phone_str length] - MAX_PHONE_LENGTH;
}
return [phone_str stringByReplacingCharactersInRange:range withString:@""];
}
此處還有崩潰報告。
Thread 3 Crashed:
0 libsystem_kernel.dylib 0x1956a3270 __pthread_kill (in libsystem_kernel.dylib) + 8
1 libsystem_c.dylib 0x19561ab18 abort (in libsystem_c.dylib) + 112
2 libsystem_malloc.dylib 0x1956de3e4 _nano_malloc_check_clear (in libsystem_malloc.dylib) + 0
3 libsystem_malloc.dylib 0x1956de550 _nano_malloc_check_clear (in libsystem_malloc.dylib) + 364
4 libsystem_malloc.dylib 0x1956dd0dc nano_calloc (in libsystem_malloc.dylib) + 80
5 libsystem_malloc.dylib 0x1956d195c malloc_zone_calloc (in libsystem_malloc.dylib) + 124
6 libsystem_malloc.dylib 0x1956d18bc calloc (in libsystem_malloc.dylib) + 64
7 libobjc.A.dylib 0x194f17c24 class_createInstance (in libobjc.A.dylib) + 80
8 CoreFoundation 0x1836e8004 __CFAllocateObject2 (in CoreFoundation) + 24
9 CoreFoundation 0x1835c9eac +[__NSArrayI __new:::] (in CoreFoundation) + 40
10 CoreFoundation 0x1835c9da0 +[NSArray arrayWithObject:] (in CoreFoundation) + 56
11 Foundation 0x1845dd528 -[NSString componentsSeparatedByCharactersInSet:] (in Foundation) + 456
12 MyApp 0x1001aad80 0x1000e4000 + 814464
13 MyApp 0x1001ab434 0x1000e4000 + 816180
14 AddressBook 0x182867198 __37-[ABTCC accessRequestWithCompletion:]_block_invoke (in AddressBook) + 48
15 libdispatch.dylib 0x19555d994 _dispatch_call_block_and_release (in libdispatch.dylib) + 24
16 libdispatch.dylib 0x19555d954 _dispatch_client_callout (in libdispatch.dylib) + 16
17 libdispatch.dylib 0x19556a780 _dispatch_root_queue_drain (in libdispatch.dylib) + 1848
18 libdispatch.dylib 0x19556bc4c _dispatch_worker_thread3 (in libdispatch.dylib) + 108
19 libsystem_pthread.dylib 0x19573d22c _pthread_wqthread (in libsystem_pthread.dylib) + 816
20 libsystem_pthread.dylib 0x19573cef0 start_wqthread (in libsystem_pthread.dylib) + 4
這是調用clearedPhoneNumber函數的代碼。
- (NSMutableArray *) Get_Phones_By_Person:(ABRecordRef)person localized:(BOOL)isLocalized {
ABMultiValueRef phones = ABRecordCopyValue(person, kABPersonPhoneProperty);
if (phones == nil)
return nil;
NSMutableArray * all_phones = [NSMutableArray array];
for(CFIndex j = 0; j < ABMultiValueGetCount(phones); j++) {
CFStringRef phoneNumberRef = ABMultiValueCopyValueAtIndex(phones, j);
NSString* stripped_phone = [self clearedPhoneNumber:(__bridge NSString *)phoneNumberRef withPlus:YES];
stripped_phone = [self getInternationalPhoneNumber:stripped_phone];
if (stripped_phone != nil) {
if (!isLocalized)
[all_phones addObject:stripped_phone];
else {
CFStringRef locLabel = ABMultiValueCopyLabelAtIndex(phones, j);
NSMutableDictionary * dict;
if (locLabel != nil) {
NSString* phoneLabel =(NSString*) CFBridgingRelease(ABAddressBookCopyLocalizedLabel(locLabel));
dict = [NSMutableDictionary dictionaryWithObjectsAndKeys:(__bridge NSString *)phoneNumberRef, @"number", phoneLabel, @"name", nil];
CFRelease(locLabel);
}
else {
dict = [NSMutableDictionary dictionaryWithObjectsAndKeys:(__bridge NSString *)phoneNumberRef, @"number", nil];
}
[all_phones addObject:dict];
}
}
CFRelease(phoneNumberRef);
}
CFRelease(phones);
return all_phones;
}
當我用上面的代碼中，我可以看到我想要什麼正確的電話號碼，我的問題是崩潰的錯誤，有時會有崩潰的bug。 –
問題可能是'dirty_number'而不是字符集？使用用於獲取傳遞給'dirty_number'參數的值的代碼更新您的問題。 – rmaddy
OT：歡迎來到俱樂部@rmaddy！ – matt