uitableview 上拉刷新判断

//上拉
- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate{

[_refreshHeaderView egoRefreshScrollViewDidEndDragging:scrollView];
//begin
    // 下拉到最底部时显示更多数据
if( scrollView.contentOffset.y > ((scrollView.contentSize.height - scrollView.frame.size.height)))
{
        NSLog(@"上拉");
        //[self loadDataBegin];
}
   
    //end
}