UITableView titleForHeader默认的文字都是灰色加阴影的，

如果换了其它BackgroundImage的话，就不搭了。

修改方法如下：

 

1. - (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section {
2.     
3.     NSString *HeaderString = nil;
4.     
5.     switch (section) {
6.         case 0:
7.             HeaderString = [NSString stringWithFormat:@"Header Text 1"];
8.             break;
9.         case 1:
10.             HeaderString= [NSString stringWithFormat:@"Header Text 2"];
11.             break;
12.         case 2:
13.             HeaderString = [NSString stringWithFormat:@"Header Text 3"];
14.             break;
15.         }
17.     UILabel *HeaderLabel = [[[UILabel alloc] initWithFrame:CGRectMake(0, 0, 200, 40)] autorelease];
18.     HeaderLabel.backgroundColor = [UIColor clearColor];
19.     HeaderLabel.font = [UIFont boldSystemFontOfSize:18];
20.     HeaderLabel.textColor = [UIColor whiteColor];
21.     HeaderLabel.text = HeaderString;
23.    return HeaderLabel;
24. }