2014/10/15 下午 10:14:32

iphone Programming Glossary: stringtoreturn

iPhone SDK: EXC_BAD_ACCESS with CFRelease for ABAddressBookRef

http://stackoverflow.com/questions/1209130/iphone-sdk-exc-bad-access-with-cfrelease-for-abaddressbookref

NSString text ABAddressBookRef addressBookRef ABAddressBookCreate NSLog @ create addressBookRef NSString stringToReturn text CFArrayRef allPeopleRef ABAddressBookCopyArrayOfAllPeople addressBookRef NSLog @ create allPeopleRef CFIndex nPeople.. NSString stringWithFormat @ @ lastName if firstName NULL CFRelease firstName if lastName NULL CFRelease lastName stringToReturn fullName nameFound YES break CFRelease allRecordPhonesRef NSLog @ release allRecordPhonesRef CFRelease recordRef NSLog.. i CFRelease allPeopleRef NSLog @ release allPeopleRef CFRelease addressBookRef NSLog @ release addressBookRef return stringToReturn Console output is 2009 07 31 00 20 05.230 abmodular 21747 20b create addressBookRef 2009 07 31 00 20 05.231 abmodular 21747..

How to use the first character as a section name

http://stackoverflow.com/questions/1741093/how-to-use-the-first-character-as-a-section-name

@ uppercaseFirstLetterOfName NSString aString self valueForKey @ name uppercaseString support UTF 16 NSString stringToReturn aString substringWithRange aString rangeOfComposedCharacterSequenceAtIndex 0 OR no UTF 16 support NSString stringToReturn.. aString substringWithRange aString rangeOfComposedCharacterSequenceAtIndex 0 OR no UTF 16 support NSString stringToReturn aString substringToIndex 1 self didAccessValueForKey @ uppercaseFirstLetterOfName return stringToReturn @end Also in this.. NSString stringToReturn aString substringToIndex 1 self didAccessValueForKey @ uppercaseFirstLetterOfName return stringToReturn @end Also in this version don't forget to pass 'uppercaseFirstLetterOfName' as the sectionNameKeyPath NSFetchedResultsController..