UIScrollView selected cell goes out of present view on rotation to landscape

Question

I have a UITableView in a UIScrollView. The tables cells are vertical, i.e. one below the other. If I select the bottom cell, in portrait, it highlights and displays a popover. However, on rotating to landscape, the selected cell goes out of the visible view, but its popover remains. I understand that UIScrollView on rotate uses the top most cell from the UITableView as the topmost in the new (Landscape) orientation. How do I force it to still keep the selected cell in the view on rotation, i.e. on rotation, possibly rotate with the selected cell as the point of reference.

Answer 1

I believe you need to call this method in your interface rotation event of view controller.

-(void)scrollToRowAtIndexPath:(NSIndexPath *)indexPath
             atScrollPosition:(UITableViewScrollPosition)scrollPosition
                     animated:(BOOL)animated;

Here is what you can do in your view controller:

- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromOrientation
{
    [tableView scrollToRowAtIndexPath:indexPath atScrollPosition:UITableViewScrollPositionBottom animated:YES];
}

You can get the indexPath of selected row from the following event:

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath