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iphone通讯录的备份与恢复
最近在做iOS系统通讯录备份到服务器，并且可以从服务器中下载备份文件恢复到手机的功能，部分实现细节记录如下。
将iphone系统通讯录生成.vcf文件
ABAddressBookRef addressBook = ABAddressBookCreate();CFArrayRef contacts = ABAddressBookCopyArrayOfAllPeople(addressBook);CFDataRef vcards = (CFDataRef)ABPersonCreateVCardRepresentationWithPeople(contacts);NSString *vcardString = [[NSString alloc] initWithData:(__bridge NSData *)vcards encoding:NSUTF8StringEncoding];NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);NSString *folderPath = [paths objectAtIndex:0];NSString *filePath = [folderPath stringByAppendingPathComponent:@"contacts.vcf"];
[vcardString writeToFile:filePath atomically:YES encoding:NSUTF8StringEncoding error:nil];
运行后系统沙盒Document目录下会生成contacts.vcf文件，上传至服务器即可。
通讯录恢复：
从服务器下载contents.vcf文件，用系统通讯录程序打开即可恢复至手机。或者代码解析.vcf文件更新通讯录即可。
NSArray *paths=NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES); NSString *plistPath = [paths objectAtIndex:0]; NSString *filePath =[plistPath stringByAppendingPathComponent:@"contacts.vcf"]; CFDataRef vCardData = (CFDataRef)[filePath dataUsingEncoding:NSUTF8StringEncoding]; ABAddressBookRef book = ABAddressBookCreate(); ABRecordRef defaultSource = ABAddressBookCopyDefaultSource(book); CFArrayRef vCardPeople = ABPersonCreatePeopleInSourceWithVCardRepresentation(defaultSource, vCardData); for (CFIndex index = 0; index < CFArrayGetCount(vCardPeople); index++) { ABRecordRef person = CFArrayGetValueAtIndex(vCardPeople, index); ABAddressBookAddRecord(book, person, NULL); CFRelease(person); } CFRelease(vCardPeople); CFRelease(defaultSource); ABAddressBookSave(book, NULL); CFRelease(book);
注意：ABPersonCreateVCardRepresentationWithPeople只适用ios5.0以上系统。
有什么问题可以留言问我哟??
iphone通讯录的备份与恢复
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