标签：style blog color io os for sp div on
UITableView is a subclass of UIScrollView, and UITableViewDelegate conforms to UIScrollViewDelegate. So the delegate you attach to the table view will get events such as scrollViewDidScroll:, and you can call methods such as contentOffset on the table view to find the scroll position.
-(void)scrollViewDidScroll:(UIScrollView *)scrollView
{
CGFloat height = scrollView.frame.size.height;
CGFloat contentYoffset = scrollView.contentOffset.y;
CGFloat distanceFromBottom = scrollView.contentSize.height - contentYoffset;
if(distanceFromBottom < height)
{
NSLog(@"end of the table");
}
}
- (void)scrollViewDidScroll:(UIScrollView *)aScrollView { CGPoint offset = aScrollView.contentOffset; CGRect bounds = aScrollView.bounds; CGSize size = aScrollView.contentSize; UIEdgeInsets inset = aScrollView.contentInset; float y = offset.y + bounds.size.height - inset.bottom; float h = size.height; // NSLog(@"offset: %f", offset.y); // NSLog(@"content.height: %f", size.height); // NSLog(@"bounds.height: %f", bounds.size.height); // NSLog(@"inset.top: %f", inset.top); // NSLog(@"inset.bottom: %f", inset.bottom); // NSLog(@"pos: %f of %f", y, h); float reload_distance = 10; if(y > h + reload_distance) { NSLog(@"load more rows"); } }
上述代码可以添加到tableViewDelegate的类当中~
标签：style blog color io os for sp div on
原文地址：http://www.cnblogs.com/scaptain/p/4023957.html
