只需要设置背景视图的背景色:

func tableView(_ tableView: UITableView, willDisplayHeaderView view: UIView, forSection section: Int){         
  let tableHeader = view as! UITableViewHeaderFooterView        
  tableHeader.backgroundView?.backgroundColor = UIColor.white     
}

我有一个项目使用静态表视图单元格，在iOS 7.x。willDisplayHeaderView不会触发。但是，这个方法是可行的:

- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
    NSLog(@"%s", __FUNCTION__);
    CGRect headerFrame = CGRectMake(x, y, w, h);    
    UIView *headerView = [[UIView alloc] initWithFrame:headerFrame];  
    headerView.backgroundColor = [UIColor blackColor];

iOS 13> swift 5

func tableView(_ tableView: UITableView, willDisplayHeaderView view: UIView, forSection section: Int){视图。tintColor = UIColor。红}

下面是如何在头视图中添加图像:

- (UIView *) tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section 
{
    UIView *headerView = [[[UIView alloc] initWithFrame:CGRectMake(0, 0, tableView.bounds.size.width, 30)] autorelease];
    UIImageView *headerImage = [[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"top-gery-bar.png"]] autorelease];

    headerImage.frame = CGRectMake(0, 0, tableView.bounds.size.width, 30);

    [headerView addSubview:headerImage];

    return headerView;
}

在我的例子中，它是这样工作的:

let headerIdentifier = "HeaderIdentifier"
let header = self.tableView.dequeueReusableHeaderFooterView(withIdentifier: headerIdentifier)
header.contentView.backgroundColor = UIColor.white

以下解决方案适用于Swift 1.2和iOS 8+

override func tableView(tableView: UITableView, willDisplayHeaderView view: UIView, forSection section: Int) {

    // This changes the header background
    view.tintColor = UIColor.blueColor()

    // Gets the header view as a UITableViewHeaderFooterView and changes the text colour
    var headerView: UITableViewHeaderFooterView = view as! UITableViewHeaderFooterView
    headerView.textLabel.textColor = UIColor.redColor()

}