pageControlIsChangingPage = FALSE;
    CGFloat pageHeight = _scrollView.frame.size.height;
    float page = floor((_scrollView.contentOffset.y - pageHeight / 2) / pageHeight) + 1;
    if (page > 11-1) {
        NSLog(@"hole fixed");
    }
    [_scrollView setContentOffset:CGPointMake(0, page*416)];