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);
}
}
}