@interface YGSectionHeaderView : UIView@property NSUInteger section;@property (nonatomic, weak) UITableView *tableView;@end

@implementation YGSectionHeaderView- (void)setFrame:(CGRect)frame{    CGRect sectionRect = [self.tableView rectForSection:self.section];    CGRect newFrame = CGRectMake(CGRectGetMinX(frame),                                 CGRectGetMinY(sectionRect),                                 CGRectGetWidth(frame),                                 CGRectGetHeight(frame));    [super setFrame:newFrame];}@end

- (void)scrollViewDidScroll:(UIScrollView *)scrollView{    if ([scrollView isKindOfClass:[UITableView class]])    {        CGFloat sectionHeaderHeight = 44;        if (scrollView.contentOffset.y<=sectionHeaderHeight&&scrollView.contentOffset.y>=0) {            scrollView.contentInset = UIEdgeInsetsMake(-scrollView.contentOffset.y, 0, 0, 0);        } else if (scrollView.contentOffset.y>=sectionHeaderHeight) {            scrollView.contentInset = UIEdgeInsetsMake(-sectionHeaderHeight, 0, 0, 0);        }    }}