uitableview header view

- (void)aboutSizeOfHeaderview {
    // In order to show the label in the header view, we need to make the header view has a situable height
    CGFloat padding = 8.0;
    CGRect boundingRect = [self.wishListHeaderLabel.text boundingRectWithSize:CGSizeMake(self.view.bounds.size.width - (padding * 2), CGFLOAT_MAX) options:(NSStringDrawingUsesLineFragmentOrigin|NSStringDrawingUsesFontLeading) attributes:@{NSFontAttributeName:[UIFont systemFontOfSize:15.0f]} context:nil];
    
    UIView *header = self.tableView.tableHeaderView;
    CGRect rect = CGRectMake(0, 0, self.view.bounds.size.width,
                             boundingRect.size.height + 10.0f);
    header.frame = rect;
    self.tableView.tableHeaderView = header;
}