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zld/pinScrollViewToTop.m

Last active August 29, 2015 14:21
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pinScrollViewToTop.m
- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
CGFloat offsetY = scrollView.contentOffset.y;
if (offsetY < 0) {
[scrollView setContentOffset:CGPointMake(0, 0) animated:NO];
}
}
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