- (void) addUnderlineToLabel:(UILabel*) label {
    int lineThickness = 1; //change these to customize the line
    UIColor *lineColor = [UIColor lightGrayColor];

    NSString *string = label.text;
    CGSize stringSize = [string sizeWithFont:label.font];
    CGRect buttonFrame = label.frame;
    CGRect labelFrame = CGRectMake(buttonFrame.origin.x + buttonFrame.size.width - stringSize.width, buttonFrame.origin.y + stringSize.height + 1, stringSize.width, lineThickness);
    UILabel *lineLabel = [[UILabel alloc] initWithFrame:labelFrame];
    lineLabel.backgroundColor = lineColor;

    [label.superview addSubview:lineLabel];
}