File Worker Objective C

// File Worker
NSFileManager *manager = [NSFileManager defaultManager];
NSString *home = [@"~" stringByExpandingTildeInPath];
NSMutableArray *files = [NSMutableArray arrayWithCapacity:40];

for (NSString *filename in [manager enumeratorAtPath:home]) {
    if ([[filename pathExtension] isEqual:@"png"]) {
        [files addObject:filename];
    }
}

for (NSString *filename in files) {
    NSLog(@"%@", filename);
}