当我的应用程序从背景启动时，我正在运行一个新线程以使用通知中心获取 AddresssBook 数据。这是我的代码，它显示了我如何调用该方法
-(void)appLaunchedFromBackground:(NSNotification *) notification {
// NSThread *backgroundThread; is my ivar
backgroundThread = [[NSThread alloc]initWithTarget:self selector:@selector(getUpdatedAddressBookData) object:nil];
[backgroundThread start];
}
-(void)getUpdatedAddressBookData {
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
AddressBook *addBook = [[AddressBook alloc]init];
[addBook fetchAddressBookDataInBackground];
[addBook release];
[pool drain];
}
这是我的 fetchAddressBookDataInBackground 方法的代码
-(void)fetchAddressBookDataInBackground {
if (self.tempArray == nil) {
NSMutableArray *temp = [[NSMutableArray alloc]init];
self.tempArray = temp;
[temp release];
}
ABAddressBookRef addressBook = ABAddressBookCreate();
NSArray *tempPeople = [[NSArray alloc]init];
tempPeople = (NSArray*)ABAddressBookCopyArrayOfAllPeople(addressBook);
APP_DELGATE.people = [NSArray arrayWithArray:tempPeople];
int peoCount = [APP_DELGATE.people count];
for (int i=0; i<peoCount; i++) {
ABRecordRef record = [APP_DELGATE.people objectAtIndex:i];
NSNumber *recordId = [NSNumber numberWithInteger:ABRecordGetRecordID(record)];
// Get fname, lname, company
NSString *fnm = (NSString *)ABRecordCopyValue(record, kABPersonFirstNameProperty) ;
NSString *lnm = (NSString *)ABRecordCopyValue(record, kABPersonLastNameProperty) ;
NSString *comp = (NSString*)ABRecordCopyValue(record,kABPersonOrganizationProperty);
// Get Ph no
ABMultiValueRef phoneNumberProperty = ABRecordCopyValue(record, kABPersonPhoneProperty);
NSArray *tempPhNos = (NSArray*)ABMultiValueCopyArrayOfAllValues(phoneNumberProperty);
NSArray* phoneNumbers = [self getPhoneNoWithoutSymbols:tempPhNos];
NSString *strPhoneNos = [self getStringRepresentaionFromArray:phoneNumbers];
// Get emails
ABMultiValueRef emailProperty = ABRecordCopyValue(record, kABPersonEmailProperty);
NSArray* emails = (NSArray*)ABMultiValueCopyArrayOfAllValues(emailProperty);
NSString *strEmails = [self getStringRepresentaionFromArray:emails];
// Get URL
ABMultiValueRef urlProperty = ABRecordCopyValue(record, kABPersonURLProperty);
NSArray* urls = (NSArray*)ABMultiValueCopyArrayOfAllValues(urlProperty);
NSString *strURLs = [self getStringRepresentaionFromArray:urls];
// Get Address
ABMultiValueRef address=ABRecordCopyValue(record, kABPersonAddressProperty);
CFDictionaryRef dic=nil;
NSMutableArray *addressArray = [[NSMutableArray alloc]init];
for (int index=0; index<ABMultiValueGetCount(address); index++) {
dic=ABMultiValueCopyValueAtIndex(address, index);
NSString* labelName=(NSString*)ABMultiValueCopyLabelAtIndex(address, index);
if (labelName) {
NSString *street =(NSString*) CFDictionaryGetValue(dic, kABPersonAddressStreetKey);
NSString *city= (NSString*)CFDictionaryGetValue(dic, kABPersonAddressCityKey) ;
NSString *state= CFDictionaryGetValue(dic, kABPersonAddressStateKey);
NSString *country=CFDictionaryGetValue(dic, kABPersonAddressCountryKey);
NSString *zipcode=CFDictionaryGetValue(dic, kABPersonAddressZIPKey);
NSString *addressDetails=@"";
if (street) {
addressDetails=[NSString stringWithFormat:@"%@ ",street];
}
if (city) {
addressDetails=[NSString stringWithFormat:@"%@ %@ ",addressDetails,city];
}
if (state) {
addressDetails=[NSString stringWithFormat:@"%@ %@ ",addressDetails,state];
}
if (country) {
addressDetails=[NSString stringWithFormat:@"%@ %@ ",addressDetails,country];
}
if (zipcode) {
addressDetails=[NSString stringWithFormat:@"%@ %@ ",addressDetails,zipcode];
}
[addressArray addObject:addressDetails];
}
[labelName release];
CFRelease(dic);
}
NSString *strAddress = [self getStringRepresentaionFromArray:addressArray];
// Get Notes
NSString *noteString=(NSString *)ABRecordCopyValue(record, kABPersonNoteProperty);
// Get Birthdate
NSDate *birthDate=(NSDate*)ABRecordCopyValue(record, kABPersonBirthdayProperty) ;
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
[formatter setDateFormat:@"MMMM dd yyyy"];
NSString *birthdateString = [formatter stringFromDate:birthDate];
[formatter release];
// Get user image
UIImage *image = nil;
if( ABPersonHasImageData( record ) ) {
NSData *imageData = (NSData*)ABPersonCopyImageData(record);
image = [UIImage imageWithData:imageData];
[imageData release];
}
NSString *fullName = [NSString stringWithFormat:@"%@ %@",fnm,lnm];
// Create User object & add it to array
User *user = [[User alloc]initUserWithUniqID:recordId.intValue FirstName:fnm lastName:lnm compositeName:fullName company:comp phoneNumbers:strPhoneNos emails:strEmails urls:strURLs address:strAddress notes:noteString dob:birthdateString userImage:image];
[self.tempArray addObject:user];
CFRelease(phoneNumberProperty);
[tempPhNos release];
CFRelease(emailProperty);
[emails release];
CFRelease(urlProperty);
[urls release];
CFRelease(address);
[addressArray release];
[birthDate release];
[comp release];
[noteString release];
[lnm release];
[fnm release];
[user release];
}
[tempPeople release];
CFRelease(addressBook);
addressBook = nil;
self.tempArray = [NSMutableArray arrayWithArray:[self.tempArray sortedArrayUsingSelector:@selector(compare:)]];
APP_DELGATE.allUsersArray = self.tempArray;
NSDictionary *dic = [NSDictionary dictionaryWithObject:self.tempArray forKey:BATCH_DONE_KEY];
[[NSNotificationCenter defaultCenter] postNotificationName:BACKGROUND_WORK_DONE_NOTIFICATION object:self userInfo:dic];
}
-(NSMutableArray*)getPhoneNoWithoutSymbols:(NSArray*)array {
if (self.phNoArray == nil) {
NSMutableArray *temp = [[NSMutableArray alloc]init];
self.phNoArray = temp;
[temp release];
}
[self.phNoArray removeAllObjects];
for (NSString *str in array) {
[self.phNoArray addObject:[self getPhNo:str]];
}
return self.phNoArray;
}
-(NSString*)getPhNo:(NSString*)str {
NSString *str0 = [str stringByReplacingOccurrencesOfString:@" " withString:@""];
NSString *str1 = [str0 stringByReplacingOccurrencesOfString:@"(" withString:@""];
NSString *str2 = [str1 stringByReplacingOccurrencesOfString:@")" withString:@""];
NSString *str3 = [str2 stringByReplacingOccurrencesOfString:@"-" withString:@""];
return str3;
}
-(NSString*)getStringRepresentaionFromArray:(NSArray*)array {
return [array componentsJoinedByString:DELIMITER_SYMBOL];
}
但是我的应用程序在我使用“ABRecordCopyValue”函数的任何行都因“程序收到 EXC_BAD_ACCESS”错误而崩溃。我错过了什么？我的代码没有什么问题？
我尝试设置 NSZombieEnabled = YES ，但它没有显示任何消息。只需使用 ABRecordCopyValue 函数在任何行中说“程序收到 EXC_BAD_ACCESS”，在控制台中我看到（gdb）就是这样。
非常感谢任何帮助。谢谢。