Question

I’m trying to mirror what I write to console to a text file. Here’s the code I’ve written, but it isn’t creating the txt file. Any help is greatly appreciated:

-(NSString *) display
{
    NSLog (@" \n ");
    NSLog (@"|========== Contents of: %@ =============|", listName);
    NSLog (@"|__________________________________________________|");
    NSLog (@"|    | Song Title |    |         | Artist |        |");
    NSLog (@"|    ==============    |         ==========        |");
    NSLog (@"|~~~~~~~~~~~~~~~~~~~~~~|~~~~~~~~~~~~~~~~~~~~~~~~~~~|");

    for ( SongRecord *theRecord in list )
        NSLog (@"|  %-20s|  %-24s |", [theRecord.songname UTF8String],
           [theRecord.artist UTF8String]);

    NSLog (@"====================================================");

    return listing;
}


-(void) saveToFile
{
     NSString* fileName = @"Mysongs.txt";
     NSString* fullPath = [path stringByAppendingPathComponent:fileName];



     [[self display] writeToFile:fullPath atomically:YES encoding:NSUnicodeStringEncoding    error:nil];

     NSLog (@"The file has been written");

}

Answer 1

Modify -display so that it builds a string that you can actually return for use in -saveToFile. At the same time, you can send it to console, as you wish:

- (NSString *)display
{
    NSMutableString *listing = [NSMutableString string];

    [listing appendString:@"\n"];
    [listing appendFormat:@"|========== Contents of: %@ =============|\n", listName];
    [listing appendString:@"|__________________________________________________|\n"];
    [listing appendString:@"|    | Song Title |    |         | Artist |        |\n"];
    [listing appendString:@"|    ==============    |         ==========        |\n"];
    [listing appendString:@"|~~~~~~~~~~~~~~~~~~~~~~|~~~~~~~~~~~~~~~~~~~~~~~~~~~|\n"];

    for (SongRecord *theRecord in list)
    {
        [listing appendFormat:@"|  %-20s|  %-24s |\n", [theRecord.songname UTF8String], [theRecord.artist UTF8String]];
    }

    [listing appendString:@"====================================================\n"];

    NSLog(@"%@", listing);

    // Do this to return an immutable string, as your method signature says it will.
    return [NSString stringWithString:listing];
}