iOS开发Debug之去掉tableView的headerview的粘性

- (void)scrollViewDidScroll:(UIScrollView *)scrollView

{

    

    CGFloat sectionHeaderHeight =21;//21为hearderview的高度

    if (scrollView.contentOffset.y<=sectionHeaderHeight&&scrollView.contentOffset.y>=0) {

        scrollView.contentInset =UIEdgeInsetsMake(-scrollView.contentOffset.y,0, 0,0);

    } elseif (scrollView.contentOffset.y>=sectionHeaderHeight) {

        scrollView.contentInset =UIEdgeInsetsMake(-sectionHeaderHeight,0, 0,0);

    }

}