解决 ios UITableView 分组视图随cell滚动，组头卡到顶部

添加 如下代码：

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

CGFloatsectionHeaderHeight =44;

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);

}

}