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- - (void) scrollViewDidScroll:(UIScrollView *)sender {
- // 得到每页宽度
- CGFloat pageWidth = sender.frame.size.width;
- // 根据当前的x坐标和页宽度计算出当前页数
- int currentPage = floor((sender.contentOffset.x - pageWidth / 2) / pageWidth) + 1;
- }
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