scrollview 左右滑动

- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView{    //拖动前的起始坐标

    

    startContentOffsetX = scrollView.contentOffset.x;

    

}

 

- (void)scrollViewWillEndDragging:(UIScrollView *)scrollView withVelocity:(CGPoint)velocity targetContentOffset:(inout CGPoint *)targetContentOffset{    //将要停止前的坐标

    

    willEndContentOffsetX = scrollView.contentOffset.x;

}

 

- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView{

    

    endContentOffsetX = scrollView.contentOffset.x;

    if (endContentOffsetX < willEndContentOffsetX && willEndContentOffsetX < startContentOffsetX) { //画面从右往左移动，前一页

        _pageContor.currentPage = _pageContor.currentPage - 1;

    } else if (endContentOffsetX > willEndContentOffsetX && willEndContentOffsetX > startContentOffsetX) {//画面从左往右移动，后一页

        _pageContor.currentPage = _pageContor.currentPage + 1;

    }

    

}

转载于:https://www.cnblogs.com/aiwoqu/p/4606968.html