Nic Hubbard Nic Hubbard - 4 months ago 35
iOS Question

UITextField subview of UITableViewCell, get indexPath of cell

I have added a

UITextField
as a subview of a
UITableViewCell
. Then I have added a
target
and
selector
so that I can know when
UIControlEventEditingChanged
. This works great, but I would like you know the
indexPath
of the cell that the
UITextField
is in, as it could be added to any number of cells.

Is this possible? Basically I want to find the parent view which is a
UITableViewCell
.

Answer

Call [UIView superview] on the field to get the cell that it's in, then call [UITableView indexPathForCell:] on the cell to get the index path.

UPDATE: on iOS 7 you need to call superview on that view too (extra layer of views); here's a category on UITableView that should work independent of iOS version:

@interface UITableView (MyCoolExtension) 

- (NSIndexPath *)indexPathForCellContainingView:(UIView *)view;

@end

@implementation UITableView (MyCoolExtension)

- (NSIndexPath *)indexPathForCellContainingView:(UIView *)view {
    while (view != nil) {
        if ([view isKindOfClass:[UITableViewCell class]]) {
            return [self indexPathForCell:(UITableViewCell *)view];
        } else {
            view = [view superview];
        }
    }

    return nil;
}

@end