How to dynamically resize UITableViewCell height

Question

I have the classical grouped UITableView with editable UITextViews inside every cell. This text views can be single or multi-lined, and I want the cell to increase its heigh

Answer 1

To be more specific, yes, you have to implement tableView:heightForRowAtIndexPath: to calculate the new height, then do as rickharrison says and call [tableView reloadRowsAtIndexPaths:withRowAnimation]. Lets say your cells can have an expanded height and a normal height, and you want them to grow when tapped on. You can do:

-(CGFloat)tableView:(UITableView*)tableView heightForRowAtIndexPath:(NSIndexPath*) indexPath 
{
    if ([expandedPaths containsObject:indexPath]) {
        return 80;
    } else {
        return 44;
    }
 }

-(void)tableView:(UITableView*) didSelectRowAtIndexPath:(NSIndexPath*) indexPath
{
    [expandedPaths addObject:indexPath];
    [tableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
}