Problem in writing to a file in application bundle.

Question

    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsDirectoryPath = [paths objectAtIndex:0];
    fileName = [documentsDirectoryPath stringByAppendingPathComponent:@"user.txt"];
        NSFileHandle *myHandle = [NSFileHandle fileHandleForUpdatingAtPath:fileName];
    [myHandle seekToEndOfFile];
NSData *dataName = [uname dataUsingEncoding: NSUnicodeStringEncoding];

    if ([dataName writeToFile:fileName atomically:YES])
        NSLog(@"writeok");

        [myHandle seekToEndOfFile];

** I edited the question. Now I am using NSFileHandle. Still the problem persist.

I using the following code to write in a file. The file does not get updated.

Is there any problem with the code?

Answer 1

You cannot write to files in the Bundle. As the Bundle is code signed, any attempt to change the files in the bundle would break the signing. You need to move the file to the Documents directory and work on it there.