[iphone/objective c] 어플 내의 document에 데이터 저장하기

출처 : http://blog.xiles.net/333
          http://mongkoon.com/main/bbs/board.php?bo_table=06_15&wr_id=144

- (BOOL)writeApplicationData:(NSData *)data toFile:(NSString *)fileName {

    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

    NSString *documentsDirectory = [paths objectAtIndex:0];

    if (!documentsDirectory) {

        NSLog(@"Documents directory not found!");

        return NO;

    }

    NSString *appFile = [documentsDirectory stringByAppendingPathComponent:fileName];

    return ([data writeToFile:appFile atomically:YES]);

}

 

 

* Array 저장하고 불러오는 예제인데 개별 파일에 대해서도 동일하게 동작한다.

원문링크 : http://blog.naver.com/PostView.nhn?blogId=zmfltbsk2&logNo=30084135650

 

파일 저장

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];

NSString *fullFileName = [NSString stringWithFormat:@"%@/arraySaveFile", documentsDirectory];

NSMutableArray *array = [[NSMutableArray alloc] init];
[array addObject:@"One"];
[array addObject:@"Two"];
[array addObject:@"Three"];

[array writeToFile:fullFileName atomically:NO];

파일 불러오기

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

NSString *documentsDirectory = [paths objectAtIndex:0];

NSString *fullFileName = [NSString stringWithFormat:@"%@/arraySaveFile", documentsDirectory];

NSMutableArray *array = [[NSMutableArray alloc] initWithContentsOfFile:fullFileName];