How to know the UITableview row number

Question

I have a UITableViewCell with UISwitch as accessoryview of each cell. When I change the value of the switch in a cell, how can I know in which row

Answer 1

One common way to do this is to set the tag of the control (in your case the switch) to something that can be used to identify the row or represented object.

For example, in tableView:cellForRowAtIndexPath: set the tag property of the switch to the indexPath.row and in your action method you can get the tag from the sender.

Personally, I don't like this approach and prefer subclassing UITableViewCell. Also, it may be a good idea to add an "offset" to the tag to prevent any conflicts with the tags of other views.