去掉tableviewheaderView粘性的最佳方法

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

CGFloatsectionHeaderHeight =50;

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);

}

}