hightlight.m

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"Cell" forIndexPath:indexPath];

    [cell.imageView setImage:[UIImage imageNamed:@"radiobutton-unchecked"]];
    [cell.imageView setHighlightedImage:[UIImage imageNamed:@"radiobutton-checked"]];
    
    [cell.label setText:_dataArray[indexPath.row][@"text"]];
    
    return cell;
}