supersr--去除tableViewHeader的粘性

这段代码能去除tableViewHeader的粘性

const static NSInteger kSectionHeaderHeight = 30;

- (void)scrollViewDidScroll:(UIScrollView *)scrollView

{

if (scrollView.contentSize.height > self.view.height) {

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

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

} else if (scrollView.contentOffset.y>=kSectionHeaderHeight){

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

}

}

}

//是不是i7.0

#define IOS7_OR_LATER   ( [[[UIDevice currentDevice] systemVersion] compare:@"7.0"] != NSOrderedAscending )

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

if (!IOS7_OR_LATER){

CGFloat sectionHeaderHeight = 53;

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);

}

}

}