有关Tableview滑动出现的问题

#pragma mark section不悬停

static CGFloat const sectionHeight = 12.0f;//section的高度值

- (void)scrollViewDidScroll:(UIScrollView *)scrollView {

    CGFloat sectionHeaderHeight = sectionHeight;

    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);

    }

 }

//解决搜索滑动后view下移的问题

- (void)scrollViewDidScroll:(UIScrollView *)scrollView{

    CGFloat off_y = scrollView.contentOffset.y;

    if (off_y < 0) {

        self.tableView.contentOffset = CGPointMake(0, 0);

    }

}