im...

NSFileManager *filemgr; filemgr = [NSFileManager defaultManager]; NSArray *dirPaths; NSString *docsDir; dirPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); docsDir = [dirPaths objectAtIndex:0]; NSLog(@"[%@]", docsDir); NSString *tempDir; tempDir = NSTemporaryDirectory(); NSLog(@"[%@]", tempDir); NSString *dirCache; dirPaths = NSSearchPathForDirectoriesInDo..

[self.navigationController popToViewController:[self.navigationController.viewControllers objectAtIndex:2] animated:YES];

storyboard에서 next view로 push 연결 후 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"TableCellIdentifier"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellId..

NSString *prefLang = [[NSLocale preferredLanguages] objectAtIndex:0];

[dateFormatter setLocale:[NSLocale currentLocale]]; NSLog(@"Locale:%@", [[dateFormatter locale] localeIdentifier]); [dateFormatter setLocale:[[NSLocale alloc] initWithLocaleIdentifier:@"ko_KR"]]; NSLog(@"Locale:%@", [[dateFormatter locale] localeIdentifier]);

인스턴스 변수로 선언한 변수명과 동일한 변수명을 지역변수로 선언한 경우 발생

#import - (NSString*)genGUID { CFUUIDRef uuidRef = CFUUIDCreate(NULL); CFStringRef uuidStringRef = CFUUIDCreateString(NULL, uuidRef); CFRelease(uuidRef); NSString *uuid = [NSString stringWithString:(__bridge NSString *)uuidStringRef]; CFRelease(uuidStringRef); return uuid; }

ARC에서 performSelector 사용 시 발생 # 해결방법 objc_msgSend 사용 objc_msgSend(receiver, sel, param1, param2, ...);

#import - (NSString*)md5:(NSString*)str { const char *cStr = [str UTF8String]; unsigned char result[CC_MD5_DIGEST_LENGTH]; CC_MD5(cStr, strlen(cStr), result); return [NSString stringWithFormat:@"%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X", result[0],result[1],result[2],result[3],result[4],result[5],result[6],result[7], result[8],result[9],result[10],result[11],result[12],re..

(0x80000000 + kCFStringEncodingDOSKorean)