- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView
{
userContentOffsetX = scrollView.contentOffset.x;
}
- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
if (userContentOffsetX < scrollView.contentOffset.x) {
isLeftScroll = YES;
}
else {
isLeftScroll = NO;
}
}
先标记开始滚动的时候的位置,然后标记滚动后的位置, 小于滚动后的就是往左,反之
原文:http://blog.csdn.net/liwuking/article/details/20917231