How to manually call UITableView's titleForHeaderInSection method?

Pretty simple question, but I just can't get i开发者_如何学Got to work right. I need to be able to access the string header value of a section when a cell within that section is clicked.

My initial attempts haven't been working:

[tableView titleForHeaderInSection:1];

The reason I thought that would work is because I am also using this:

[tableView cellForRowAtIndexPath:indexPath];

Which works fine. I'm implementing the delegate, but I still get the warning that UITableView may not respond to titleForHeaderInSection. And then it crashes because of an unrecognized selector.

All I need to do is pass the string value of the cell title, and the section title into the next view.

What am I doing wrong? Is there a better approach? Thanks

You can access titleForHeaderInSection from UITableViewController and UITableView: you just need to follow the objects chain.

Example starting at the view controller:

class TableViewController: UITableViewController {

    func titleForHeaderInSection(indexPath:NSIndexPath) -> String? {
        if let tableView = self.tableView {
            if let dataSource = tableView.dataSource {
                if dataSource.respondsToSelector("tableView:titleForHeaderInSection:") {
                    return dataSource.tableView!(tableView,
                                                 titleForHeaderInSection:indexPath.row)
                }
            }
        }
        return nil
    }
}

titleForHeaderInSection is the method of UITableViewDataSource protocol which is implemented by the client class not UITabelView.

So you can't call titleForHeaderInSection on your UITableView instance.

how about:

[tableView titleForHeaderInSection:indexPath.section];

Calling manually titleForHeaderInSection did not work for me.

But a simple [tableView reloadData] did the trick.

Hope this helps