UIWebView隐藏右侧和底部滚动条，去掉滚动边界的黑色背景,禁止左右滑动

UIWebView隐藏右侧和底部滚动条，去掉滚动边界的黑色背景,禁止左右滑动，

-(void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error方法中实现下面的方法：

 for (UIView *_aView in [m_webView subviews])
    {
        if ([_aView isKindOfClass:[UIScrollView class]])
        {
            [(UIScrollView *)_aView setShowsVerticalScrollIndicator:NO];
            //右侧的滚动条
            [(UIScrollView *)_aView setShowsHorizontalScrollIndicator:NO];
            [(UIScrollView *)_aView setAlwaysBounceHorizontal:NO];//禁止左右滑动
            //下侧的滚动条
            for (UIView *_inScrollview in _aView.subviews)
            {
                if ([_inScrollview isKindOfClass:[UIImageView class]])
                {
                    _inScrollview.hidden = YES;  //上下滚动出边界时的黑色的图片
                }
            }
        }
    }

参考：http://weibo.com/p/23041865aa75b60102uymy?pids=Pl_Official_CardMixFeed__4&feed_filter=1