是否可以在按钮上启动scrollView平移手势

Question

I have a hierarchy like so

- UIView 
   - UITableView
   - UIButton

By default swiping from a UIButton does not scroll the scroll view. I want to change this so it does.

I could do this by changing the UIButton to a UILabel and add a UITapGestureRecogniser to it to effectively make a custom button.

Is there a way to do it keeping it as a UIButton?

Answer 1

-(void)moveUpView
  {  
    NSIndexPath *indexPath = [NSIndexPath indexPathForRow:n inSection:0];
    [self.tableView scrollToRowAtIndexPath:indexPath      atScrollPosition:UITableViewScrollPositionTop
                                animated:YES];
        }

Hope this may work

Answer 2

Create a duplicate UITableView (with the same dataSource and delegate ), but don't insert it anywhere into the view hierarchy; just add its panGestureRecognizer to the UIButton . Implement its delegate -scrollViewDidScroll: method to set the original UITableView 's contentOffset to that of the duplicate UITableView .