Question

When exactly does layoutSubviews get called on a custom UITableViewCell in a UITableViewCells cellForRowAtIndexPath method? Below, I need layoutSubviews to be called AFTER I set the FiltersTableViewCellItem property. Do I have this set up correctly? I’d like to be able to use layoutSubviews because I heard it’s better for performance.

- (UITableViewCell *) tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *cellIdentifier = @"FiltersTableViewCell";
    FiltersTableViewCell *filtersTableViewCell = [[self dequeueReusableCellWithIdentifier:cellIdentifier] retain];
    FiltersTableViewCellItem *filtersTableViewCellItem = [[self.filtersTableViewCellItems objectAtIndex:[indexPath row]] retain];

    if (!filtersTableViewCell)
    {
        filtersTableViewCell = [[FiltersTableViewCell alloc] initWithFiltersTableViewCellItem:filtersTableViewCellItem];
        filtersTableViewCell.delegate = self;
    }
    else
    {
        filtersTableViewCell.filtersTableViewCellItem = filtersTableViewCellItem;
    }
    return [filtersTableViewCell autorelease];
}

Answer 1

layoutSubviews is called at some point after tableView:willDisplayCell:, which is called after tableView:cellForRowAtIndexPath:. You can verify this by setting breakpoints in the relevant methods and seeing the order in which they get hit. For example, set a breakpoint at the end of tableView:cellForRowAtIndexPath:. Then add the following method to FiltersTableViewCell

- (void)layoutSubviews
{
    [super layoutSubviews];
}

and set a breakpoint there. Then run the app and see what happens.